Contents Wiring diagrams Section: Towing Systems All sections

Trailers - Repair - e90 BMW M3 E90

Towing Systems 203 illustrations ~8515 words

86 10... Adjusting brake system

Proper adjustment of the brake system is only possible if the brake Bowden cables and all brake system moving parts move freely and are ready for operation.

The wheels must be completely fitted and able to rotate freely. Always adjust both brake sides. The left and right sides are adjusted in the same way.

Pull out overrunning equipment (1) fully in direction of arrow.

Scheme 6

Scheme 6: 86 10... Adjusting brake system

Reversing lever (1) must rest directly on inner-lying tow tube of overrunning brake.

Scheme 7

Scheme 7

Screw brake linkage (1) into nut (2) until distance (3) (nut (2) - end of brake linkage (1)), is 10 - 15mm. Lock brake linkage (1) in position with nut (4).

Check distance (3) and nuts (2, 4) with brake linkage installed.

Scheme 8

Scheme 8

Insert pull rod (1) in brake compensator (2) and screw nut (3) onto pull rod (2).

Tighten nut (3) until pull rod (1) is free of play.

Check pull rod (1) already fitted for zero play.

Scheme 9

Scheme 9

Hook tension spring (1) to tension spring mount (2).

Installation

The brake shoes are adjusted in two work steps. In the first step, the distance between the lower half of the brake shoes and the brake drum is adjusted. In the second step, the distance between the upper half of the brake shoes and the brake drum is adjusted.

Scheme 10

Scheme 10

Rotate road wheel (1) in direction of travel and simultaneously turn adjusting screw (2) in direction of arrow.

Tighten adjusting screw (2) until road wheel (1) can no longer be turned.

Scheme 11

Scheme 11

Turn adjusting screw (1) in direction of arrow and release slowly until road wheel (2) can rotate.

Finish adjustment procedure when slight grinding noises can be heard in lower brake shoe halves.

Scheme 12

Scheme 12

Firmly tighten handbrake lever three to five times.

Depending on road wheel side, tighten nut (1) or (2) until slight grinding noises can be heard in upper brake shoe halves.

Scheme 13

Scheme 13

86 10... Adjusting spring force accumulator

The spring force accumulator requires no maintenance and generally does not need to be readjusted.

Adjustment dimension, spring force accumulator: distance between end of support tube - internal washer (1) is 90 mm.

Scheme 14

Scheme 14: 86 10... Adjusting spring force accumulator

To tension spring force accumulator: turn nut (2) located in support tube (1) clockwise.

To relieve tension on spring force accumulator: turn nut (2) located in support tube (1) counterclockwise.

Scheme 15

Scheme 15

86 10... Disassembly of Camlock retaining cam

Unscrew bolts (1).

Scheme 16

Scheme 16: 86 10... Disassembly of Camlock retaining cam

86 10... Disassembly of base plate

Note. Disassembly of bar REFER TO 86 10... REPLACING BAR Disassembly of lashing plate REFER TO 86 10... REPLACING LASHING PLATE AND LASHING EYE Disassembly of 12 volt socket REFER TO 86 10... REPLACING 12 VOLT SOCKET Remove plastic bush/metal bush REFER TO 86 10... REMOVING PLASTIC BUSH/METAL BUSH Disassembly of light guard REFER TO 86 10... REPLACING REAR LIGHT Disassembly of front apron REFER TO 86 10... DISASSEMBLY OF FRONT APRON Disassembly of left and right aprons REFER TO 86 10... DISASSEMBLY OF LEFT AND RIGHT APRONS Disassembly of left and right wheel boxes REFER TO 86 10... DISASSEMBLY OF LEFT AND RIGHT WHEEL BOXES Disassembly of rear apron REFER TO 86 10... DISASSEMBLY OF REAR APRON Disassembly of left and right lamp housings REFER TO 86 10... DISASSEMBLY OF LEFT AND RIGHT LAMP HOUSINGS Disassembly of rivet connection, rear support REFER TO 86 10... DISASSEMBLY PROCEDURE OF RIVET CONNECTION, REAR SUPPORT

Unscrew bolts (1).

CAUTIONBefore drilling out rivet heads, drive in rivet pins with a punch. Drill out rivet connections (2).

Installation

Tightening Torque

Scheme 17

Scheme 17

86 10... Disassembly of bracket on platform base

Unscrew bolts (1).

Scheme 18

Scheme 18: 86 10... Disassembly of bracket on platform base

86 10... Disassembly of front apron

Drill out rivets (1) on lower apron edge.

Scheme 19

Scheme 19: 86 10... Disassembly of front apron

Remove sealing compound (1).

Drill out rivets (2).

Installation

Use Sikaflex 221 as sealing compound.

Scheme 20

Scheme 20

Press side sections (1) to side in direction of arrow. Tilt center section (2) downwards and remove to side.

Installation

Use Sikaflex 221 as sealing compound.

Scheme 21

Scheme 21

86 10... Disassembly of front protection bar

Release screws (1) on cross-member (2).

Installation

Use new self-locking nuts.

Tightening Torque

Installation

Tightening Torque

Scheme 22

Scheme 22: 86 10... Disassembly of front protection bar

Release screws (1) on longitudinal member (2).

Installation

Tightening Torque

Scheme 23

Scheme 23

86 10... Disassembly of jockey wheel or jockey wheel mount

Turn clamping lever (1) in direction of arrow and release clamping connection. Open clamping bracket (2) and remove jockey wheel (3). Release screws on mount (4) and remove screws.

Installation

Tightening Torque

Scheme 24

Scheme 24: 86 10... Disassembly of jockey wheel or jockey wheel mount

86 10... Disassembly of left and right aprons

Drill out rivets (1) on lower apron edge.

Scheme 25

Scheme 25: 86 10... Disassembly of left and right aprons

Remove sealing compound (1).

Drill out all rivets (2) along apron edge.

Installation

Use Sikaflex 221 as sealing compound.

Scheme 26

Scheme 26

Remove sealing compound (1).

Drill out rivets (2) on lower apron edge.

Installation

Use Sikaflex 221 as sealing compound.

Scheme 27

Scheme 27

86 10... Disassembly of left and right lamp housings

Cut through sealing compound (1) and remove.

Drill out rivet connections (2).

Installation

Use Sikaflex 221 as sealing compound.

Scheme 28

Scheme 28: 86 10... Disassembly of left and right lamp housings

Drill out rivet connections (1).

Raise side sections (2, 3).

Pull out lamp housing (4) towards inside in direction of platform.

Scheme 29

Scheme 29

86 10... Disassembly of left and right wheel boxes

Remove sealing compound (1).

Drill out rivets (2).

Raise side apron (3). Pull out wheel box (4) towards rear.

Installation

Use Sikaflex 221 as sealing compound.

Scheme 30

Scheme 30: 86 10... Disassembly of left and right wheel boxes

86 10... Disassembly of licence plate mounting plate

CAUTIONOnce the connecting screws (1) have been removed, the closing spring of the hinge retracts. Risk of trapping!

Release screws (1) in loading ramp frame (2) on left and right sides.

Installation

Use new self-locking nuts.

Tightening Torque

Scheme 31

Scheme 31

86 10... Disassembly of loading ramp frame/disassembly of rail, left/right

Note. Two persons are required to disassemble the loading ramp frame. Disassembly of license plate mounting plate REFER TO 86 10... DISASSEMBLY OF LICENSE PLATE mounting plate. Disassembly of pull rod

Release screws (1) of loading ramp frame (2) on cross-strut (3).

Installation

Tightening Torque

Scheme 32

Scheme 32: 86 10... Disassembly of loading ramp frame/disassembly of rail, left/right

Release screws (1, 2) on left and right sides of loading ramp frame (3).

Installation

Use new self-locking nuts.

Tightening Torque

Scheme 33

Scheme 33

Release screws (1, 2, 3).

Installation

Use new self-locking nuts.

Tightening Torque

Scheme 34

Scheme 34

86 10... Disassembly of rear apron

Cut through sealing compound (1) on left and right and remove.

Drill out rivets (2) on left and right sides on lower apron edge.

Installation

Use Sikaflex 221 as sealing compound.

Scheme 35

Scheme 35: 86 10... Disassembly of rear apron

Cut through sealing compound (1) and remove.

Drill out rivets (2).

Installation

Use Sikaflex 221 as sealing compound.

Scheme 36

Scheme 36

86 10... Disconnecting plug connection, wiring harness, front/rear

Spread levers (1) on socket housing apart in direction of arrow and disconnect female connector (2) in direction of arrow towards bottom.

Scheme 37

Scheme 37: 86 10... Disconnecting plug connection, wiring harness, front/rear

86 10... Installation position of BMW lettering

Top edge of lettering at same height as recess for position light (1).

Distance between drawbar member and lettering (2) is 300 mm.

Installation

Remove grease from gluing surfaces.

Scheme 38

Scheme 38: 86 10... Installation position of BMW lettering

86 10... Positioning of multitrailer hood for maintenance and repair work

IMPORTANTAt least two persons are needed to install and remove the hood from the platform. Before installing and removing the hood, secure the BMW multitrailer and the entire combination against rolling. For this purpose, use the parking brake and the chocks of the BMW multitrailer. The hood can also be set up and lowered with the aid of the universal lift available from BMW in conjunction with the roof racks and the hood adapter. Under no circumstances should work of any kind be carried out below the suspended hood.

For maintenance and repair work, raise the hood using a lifting platform. Twin-column lifting platforms, body lifting platforms and twin-stamp underfloor platforms are suitable. The seating plates and areas of the lifting platform must be adjustable according to the dimensions of (Scheme 39).

Scheme 39

Scheme 39

The lifting platform must conform to the relevant legal provisions of the accident prevention regulations and be serviced as specified. Comply with the lifting platform operating instructions, in particular the safety instructions and the carrying capacity.

Make sure you adhere to the BMW-recommended work area of 5 x 7 m and to an escape route of 0.6 m between two lifting platforms.

Please comply with the following instructions before raising the hood

  1. Raise only when it is unloaded
  2. Ensure sufficient clearance between the seating plates/seating areas and the GFP edge of the hood
  3. The hood must always be positioned in the middle of the lifting platform.
IMPORTANTThe hood may only be raised at the pin (1). Under no circumstances may the hood be raised at the GFP edge of the hood (2). (Scheme 173) Exclusively for removal of pin (1), raise the hood in the GFP area. Also refer to: 86 21... REMOVING CENTERING PIN FROM MOUNTING BRACKET.

Scheme 40

Scheme 40

00 00... Raising BMW multi-trailer

CAUTIONTwin-strut underfloor platforms and twin-pillar lifting platforms are suitable for raising the BMW multi-trailer. Lifting platforms with drive-on surfaces are not suitable for raising in order to carry out maintenance and repair work.

The lifting platform must comply with the relevant statutory accident prevention regulations and be serviced according to the manufacturer's instructions. It is essential to follow the lifting platform operating instructions, in particular the safety instructions and carrying capacity!

Make sure you adhere to the BMW-recommended work area of 5 x 7 m and to an escape route of 0.6 m between two lifting platforms.

Before raising the BMW multi-trailer, please observe the following points

  1. Raise the trailer only when it is unloaded
  2. Remove a supplied loading ramp from the loading ramp frame so that all chassis areas of the BMW multi-trailer are freely accessible
  3. There must be sufficient clearance between the carrier arms/flat girder bridges and the GFK aprons or the front guard of the BMW multi-trailer
  4. The BMW multi-trailer must always be positioned in the middle of the lifting platform.
CAUTIONYou will need special additional supports for the lifting platform in order to bridge the difference in height between longitudinal member and lower edge of GFK side apron or front guard of the BMW multi-trailer. The minimum height of the additional supports is 145 mm. Use only the additional supports approved by the platform manufacturer or specified in these repair instructions. You will find appropriate examples in the repair instructions for the majority of lifting platforms present in BMW workshops. For lifting platforms that are not named, the relevant manufacturers will offer you appropriate additional supports. Please contact directly the manufacturer of the lifting platform used in your dealership.
CAUTIONThe BMW multi-trailer may only be raised by its longitudinal members. Do not under any circumstances raise the BMW multi-trailer by the GFK aprons. Make sure the additional supports bear the longitudinal members over their entire width and no attachments or wiring harnesses are touched or jammed. Check the securing equipment of the additional supports for correct seating. Under no circumstances should any work be carried out underneath the BMW multi-trailer if it is not adequately secured against slipping off the lifting platform.

The areas (2) on the longitudinal members (1) marked in the adjacent diagram are the best areas for attaching the additional supports.

Scheme 41

Scheme 41

General notes on using twin-pillar lifting platforms

For the twin-pillar lifting platforms described, the BMW multi-trailer is positioned in the direction of travel on the platform. For lifting platforms which do not create sufficient clearance between disk wheel and carrier arms, move the BMW multi-trailer against the direction of travel onto the platform.

Becker & Sohne twin-strut underfloor platform

The BMW multi-trailer can only be raised if it is supported at right angles to the direction of travel. For raising, use the high additional supports (1) of Becker & Sohne.

Scheme 42

Scheme 42
CAUTIONAlso lash the BMW multi-trailer to the flat girder bridges of the lifting platform. Flag the protruding tow hitch and the drawbar member of the BMW multi-trailer conspicuously so as to prevent injury, e.g. with a red cloth.

MAHA twin-pillar lifting platform

The BMW multi-trailer can only be raised if you use the support plate attachment sleeves for transporters (1). Position the axle of the BMW multitrailer in the direction of travel in front of the pillars of the platform in order to obtain the specified lifting ranges and to establish sufficient clearance between disk wheel and carrier arms. The long carrier arms raise the front and the short carrier arms raise the rear of the BMW multi-trailer.

Scheme 43

Scheme 43

Romaico-Lift twin-pillar lifting platform

The BMW multi-trailer can only be raised if you use the 146 mm high attachments (1). Position the axle of the BMW multi-trailer in the direction of travel in front of the pillars of the platform in order to obtain the specified lifting ranges and to establish sufficient clearance between disk wheel and carrier arms. The long carrier arms raise the front and the short carrier arms raise the rear of the BMW multi-trailer.

Scheme 44

Scheme 44

Working pit

The BMW multi-trailer can be serviced or repaired in conjunction with a working pit if the following measures are taken into consideration. The BMW multi-trailer must be secured against slipping/tilting sideways. The drawbar jockey wheel must be firmly secured against rolling.

86 10... Removing Camlock retaining cam on loading ramp

Drill out rivets (1).

Scheme 45

Scheme 45: 86 10... Removing Camlock retaining cam on loading ramp

86 10... Removing Camlock screw cap

Bend back edges (1) of tab washer (2). Remove tab washer (2) over cross pin (3) towards bottom.

Installation

Replace lockplate.

Scheme 46

Scheme 46: 86 10... Removing Camlock screw cap

86 10... Removing and installing or replacing left or right coil spring

Release screw (1) and remove, tilt shock absorber (2) in direction of arrow towards rear.

Installation

Use new self-locking nut.

Hold shock absorber vertically and protective cap points upwards. Completely press in shock absorber once and pull out up to required installation length. Do not tilt shock absorber further than is needed for installation.

Tightening Torque

Scheme 47

Scheme 47: 86 10... Removing and installing or replacing left or right coil spring

The trailing arm folds down once the coil spring on the arm has been released.

No persons should be located underneath trailing arm. Risk of injury!

Release screw (1) between trailing arm (2) and coil spring.

Installation

Tightening Torque

Scheme 48

Scheme 48

Remove pressure plate (1) from coil spring (2).

Installation

Use pressure plate with nut.

Fit pressure plate (1) according to its shape (3) into pressure spring (2).

Scheme 49

Scheme 49

Release screw (1) between coil spring (2) and longitudinal member (3). Remove small pressure plate (4) and large pressure plate (5).

Installation

Use pressure plate without nut.

Fit small pressure plate (4) according to its shape (6) into pressure spring (2).

Tightening Torque

Scheme 50

Scheme 50

Installation

Two persons are needed to install the coil spring correctly. One person presses down the pressure plate (2) seated inside the coil spring (1) and tightens the coil spring (1)/trailing arm (3) screw connection. At the same time, the second person levers the coil spring (1) with a screwdriver into its correct seat.

Tightening Torque for coil spring (1)/trailing arm (3)

Scheme 51

Scheme 51

86 10... Removing bolt on loading ramp

Insert a drift into hole (1) of bolt (2) and turn clockwise.

Scheme 52

Scheme 52: 86 10... Removing bolt on loading ramp

86 10... Removing brake shoes

The wheels of the multi-trailers must be able to rotate freely. Adjust and check brake system after installing brake shoes.

Unhook tension spring (1) from tension spring mount (2).

Scheme 53

Scheme 53: 86 10... Removing brake shoes
CAUTIONOnce nut (1) of pull rod (2) has been released, do not move handbrake lever. Handbrake lever can flick upwards.

Release nut (1) on pull rod (2) and remove hexagon nut. Slide brake compensator (3) towards rear.

Installation

Use new self-locking nut.

Scheme 54

Scheme 54

Grip openings (1) in wheel trim (2) with both hands and pull off wheel trim (2).

Scheme 55

Scheme 55

Release wheel bolts (1) and remove disk wheel (2).

Installation

Tightening Torque

Scheme 56

Scheme 56

Turn brake shoe adjusting screw (2) on brake carrier (1) in direction of arrow and release fully. The brake shoes do not rest against the drum.

Scheme 57

Scheme 57

Lever off cap (1).

Scheme 58

Scheme 58

Release nut (1) and remove. Pull off brake hub (2) with both hands.

Installation

Only a new nut is permitted for reinstallation.

Tightening Torque

Do not screw off brake hub under any circumstances.

Scheme 59

Scheme 59

To illustrate more clearly the work steps in (Scheme 60), (Scheme 61) and (Scheme 62), the wheel brake has been detached from the axle.

This procedure is not necessary for removing the brake shoes.

Push back cable (1).

Scheme 60

Scheme 60

Remove shell (1).

Scheme 61

Scheme 61

Remove brake cable (1) from mounting (2).

Scheme 62

Scheme 62

Unhook pressure spring (1) from fixed brake shoe (2) and brake carrier (3).

Scheme 63

Scheme 63

Remove tension spring (1) from both brake shoe fixtures (2).

Remove brake lever assembly (3).

Installation

The fixed part of the brake lever assembly (3) is seated on the moving brake shoe. The moving part of the brake lever assembly is seated on the fixed brake shoe.

Scheme 64

Scheme 64

Pull brake shoes (1) apart in direction of arrow, tilt forward and remove from adjustment device (2).

Installation

Always replace the four shoes and use the same make.

Minimum lining thickness: 1.5 mm

Scheme 65

Scheme 65

Check adjustment device (1).

Check wedge (2) and setting pins (3) for ease of movement and wear.

Apply grease if necessary.

Check brake cables for ease of movement and wear.

Scheme 66

Scheme 66

86 10... Removing entry profile section on loading ramp, left, right and center

CAUTIONBefore drilling out rivets, drive in rivet pins with a punch.

Drill out rivets (1). Remove entry profile section (2) towards front.

Scheme 67

Scheme 67

86 10... Removing left or right shock absorber

Inspect the shock absorber while installed to ascertain whether it needs to be replaced.

Replace shock absorber if it is leaking. Replace shock absorber if it can be easily pushed in or pulled out when removed.

Release screw (1) and remove. Tilt shock absorber in direction of arrow. Release screw (2) and remove shock absorber.

Installation

Hold shock absorber vertically: protective cap points upwards. Completely press in shock absorber once and pull out up to required installation length. Do not tilt shock absorber further than is needed for installation.

Tightening Torque

Scheme 68

Scheme 68: 86 10... Removing left or right shock absorber

86 10... Removing loading ramp lock

Unscrew bolts (1).

Installation

Tightening Torque

Scheme 69

Scheme 69: 86 10... Removing loading ramp lock

Pass lever (1) of rotary striker lock (2) out of square hole (3) by twisting from side to side.

Scheme 70

Scheme 70

Unscrew bolts (1).

Installation

Opening for securing clip (2) points to front or rear.

Square-head nut (3) rests with its square surface parallel to bearing pedestal (4).

Tightening Torque

Scheme 71

Scheme 71

Raise edge (1) of securing clip and slide in direction of arrow towards rear.

Detach bearing pedestal (2).

Scheme 72

Scheme 72

Installation

Install bearing pedestal (1) on stub (3) of locking bracket (3).

Off-center bore (4) in bearing pedestal (1) points with short distance (A) to locking bracket (3).

Scheme 73

Scheme 73

86 10... Removing mounting bracket sealing cap

Cut out mounting bracket (3) along markings (1, 2) and lever out of apron (4).

Installation

For gluing, use two-component adhesive ICEMA R 101 and hardener 7.

Mixture ratio: ICEMA R 101 7 parts; hardener 7 1 part.

Scheme 74

Scheme 74: 86 10... Removing mounting bracket sealing cap

86 10... Removing mounting bracket, center, left and right

Note. Disassembly of Camlock retaining cam REFER TO 86 10... DISASSEMBLY OF CAMLOCK RETAINING CAM

Unscrew bolts (1).

Installation

Tightening Torque

Scheme 75

Scheme 75: 86 10... Removing mounting bracket, center, left and right

86 10... Removing outer pull rod mount, left and right

Release screws (1) and remove pull rod mount (2).

Installation

Tightening Torque

Scheme 76

Scheme 76: 86 10... Removing outer pull rod mount, left and right

86 10... Removing overrunning equipment/maintaining or replacing guide bush/installing overrunning equipment

After installing overrunning equipment, readjust brake system

Check the guide bush while installed to ascertain whether it needs to be replaced. Raise ball end area and replace guide bush if play is detected in ball end area.

Note. After installing, readjust and check brake system.

Release round head screws (1) and remove running board (2) towards top.

Installation

Use new self-locking nuts.

Tightening Torque

Scheme 77

Scheme 77: 86 10... Removing overrunning equipment/maintaining or replacing guide bush/installing overrunning e

Unhook tension spring (1) from tension spring mount (2).

Scheme 78

Scheme 78
CAUTIONOnce nut (1) of pull rod (2) has been released, do not move handbrake lever. Handbrake lever can flick upwards.

Release screw (1) on pull rod (2) and remove hexagon nut. Slide brake compensator (3) towards rear.

Installation

Use new self-locking nut.

Scheme 79

Scheme 79

Release screws (1) on jockey wheel mount and remove.

Release wiring harness mount (2) and remove.

Reinstall screw and tighten until hand-tight.

Installation

Tightening Torque for jockey wheel mount (1)

Tightening Torque for wiring harness mount (2)

Scheme 80

Scheme 80

Release screw on socket holder (1) and remove. Cut through strap (2) and lay wiring harness to one side. Pull gaiter (3) in direction of arrow.

Installation

Use new self-locking nut.

Tightening Torque

Scheme 81

Scheme 81

Remove protective caps (1).

Scheme 82

Scheme 82

Release nuts (1) and remove.

Installation

Use new self-locking nuts.

Tightening Torque

Scheme 83

Scheme 83

Tilt top reversing housing (1) in direction of arrow towards rear. Slide out top reversing housing (1) and bottom reversing housing with handbrake lever unit (2) in direction of arrow towards rear.

Scheme 84

Scheme 84

Remove holder (1) towards bottom.

Scheme 85

Scheme 85

Pull drawbar member (1) in direction of arrow and pull out overrunning equipment (2) in direction of arrow towards front.

Scheme 86

Scheme 86

Remove spacer tubes (1) and threaded pins (2) from guide bush (3).

Scheme 87

Scheme 87

Press pins (1) inwards. Detach counter support (2) and guide bush (3).

Maintenance

Grease tow tube (4) and attach guide bush (3).

Installation

Secure counter support (2) with new clamping sleeves to tow tube (4).

Scheme 88

Scheme 88

Insert spacer tubes (1) and threaded pins (2) in guide bush (3).

Make sure spacer tubes (1) are correctly seated in guide bush (3).

Scheme 89

Scheme 89

Using a screwdriver, link spacer tubes (1) and shock absorber located in tow tube. This ensures that the shock absorber remains in the correct installation position. Pull drawbar member (2) in direction of arrow and push in overrunning equipment (3) in direction of arrow towards rear.

Scheme 90

Scheme 90

86 10... Removing plastic bush/metal bush

Release countersunk metal screws (1).

Scheme 91

Scheme 91: 86 10... Removing plastic bush/metal bush

Lever out plastic bush/metal bush (1) with a screwdriver.

Scheme 92

Scheme 92

86 10... Removing rear supports and bracket

Release screws (1) and remove rear support (2) from bracket (3).

Installation

Tightening Torque

Scheme 93

Scheme 93: 86 10... Removing rear supports and bracket

Remove cable holders (1) from bracket (2). Release screws (3) on left and right sides of bracket (2). Drill out rivets (4) from underside of platform. Drill out rivets (5) from upper side of platform.

Installation

Tightening Torque

Scheme 94

Scheme 94

Installation

Feed cable for rear light (1) through opening (2). Fit cable holders (4) in holes (3).

Scheme 95

Scheme 95

86 10... Removing reflecting rear light

From rear side of GFK apron, drive out plastic pins (1) with a drift.

Scheme 96

Scheme 96: 86 10... Removing reflecting rear light

86 10... Removing rest on loading ramp, left, right and center

CAUTIONBefore drilling out rivets, drive in rivet pins with a punch.

Drill out rivets (1). Remove rest (2) towards front.

Installation

Stick on new sealing tape.

Scheme 97

Scheme 97

86 10... Removing shock absorber from overrunning equipment

Check the overrunning equipment shock absorber while installed to ascertain whether it needs to be replaced.

Apply handbrake. Push in and pull out tow ball end by hand. If it is very easy to pull out the tow ball end, the shock absorber must be replaced.

Release screw (1) and remove. Pull out internal shock absorber (2) from opening in tow tube (3) towards rear.

Installation

Tightening Torque

Scheme 98

Scheme 98: 86 10... Removing shock absorber from overrunning equipment

Push in new shock absorber (1) as shown in illustration through opening in tow tube (2).

Scheme 99

Scheme 99

86 10... Removing trailing arm, removing and installing or replacing mounting

Replace bearing in trailing arm if there is play in trailing arm.

Note. Remove brake cable, REFER TO 86 10... REMOVING BRAKE SHOES. Remove shock absorber and coil spring, REFER TO 86 10... REMOVING AND INSTALLING COIL SPRING.

Release screws (1) between wheel brake (2) and trailing arm (3) and remove complete wheel brake (2).

Installation

Do not reuse screws (1). Use only the socket-head cap screws intended for this purpose. Stamped arrow on the reverse side of the brake carrier points in the direction of travel and stands at the 12 o'clock position.

Tightening Torque

Scheme 100

Scheme 100: 86 10... Removing trailing arm, removing and installing or replacing mounting

The trailing arm folds down once the coil spring on the arm has been released.

No persons should be located underneath trailing arm. Risk of injury!

Release screws (1, 2). Use assembly hole (3) to release screw connection (2).

Press out screws (1, 2) with a mandrel.

Installation

Use new self-locking nut.

Tightening Torque

Scheme 101

Scheme 101

Installation

Mount trailing arms (1) at rear mounts (4) only, viewed in direction of travel, with screws (2, 3).

Scheme 102

Scheme 102

Do not damage trailing arm with drill when drilling.

Drill spacer tube (1) with a 4 mm drill at three evenly offset points. Place drill as near as possible to compensating bush (2).

Bores relieve tension on material of spacer tube.

Press out spacer tube (1) and compensating bush (2) with a drift.

Scheme 103

Scheme 103

Grease new spacer tube (1) for installation with Syntheso Glep I. Drive new spacer tube (1) with a rubber mallet into trailing arm mount (2).

Installation

Make sure spacer tube (1) is not tilted when driven in.

Scheme 104

Scheme 104

Drive compensating bush (1) with a drift into spacer tube (2). Set compensating bush (1) and spacer tube (2) centrally in trailing arm mount (3).

Installation

Make sure compensating bush (1) is not tilted when driven in.

Install coil spring

Scheme 105

Scheme 105

86 10... Removing wheel bearing

The angular-contact ball bearings do not require maintenance and have lifetime lubrication. The bearings cannot be readjusted.

Remove brake drum

Lever out both snap rings (1).

Installation

Replace expanded or damaged snap rings (1). Ensure correct seating.

Scheme 106

Scheme 106: 86 10... Removing wheel bearing

Press out wheel bearing with special tool 24 1 010.

CAUTIONDo not reuse old wheel bearing.

Scheme 107

Scheme 107

Place new wheel bearing (1) with lathe-turned end (2) in center of bore in brake drum (3).

Installation

Before pressing in new wheel bearing, check bearing seat for possible damage.

Make sure wheel bearing is not tilted when pressed in.

Scheme 108

Scheme 108

Press in new wheel bearing (1) with special tool 23 2 150 and 33 1 374.

Scheme 109

Scheme 109

86 10... Removing wooden rest on loading ramp, left, right and center

CAUTIONBefore drilling out rivets, drive in rivet pins with a punch.

Drill out rivets (1).

Scheme 110

Scheme 110

86 10... Replacing 12 volt socket

From underside of platform, cut through cable tie (1) and remove. Disconnect plug with grommet (2) from socket (3) towards bottom.

Installation

Position all seals correctly. Also secure plug with grommet (2) using new cable tie to other socket.

Scheme 111

Scheme 111: 86 10... Replacing 12 volt socket

On upper side of platform, release Phillips screws (1) on mounting bracket (2).

Scheme 112

Scheme 112

Remove sealing compound along white marking (1).

Installation

Make sure cable is correctly laid.

Use Sikaflex 221 as sealing compound.

Scheme 113

Scheme 113

Grip under mounting bracket (1) with a screwdriver and lever out bracket (1) towards top. Remove bracket (1).

Scheme 114

Scheme 114

Release nut (1). Remove socket (2) from mounting bracket (3).

Scheme 115

Scheme 115

86 10... Replacing bar

Remove lashing eyes (1).

Scheme 116

Scheme 116: 86 10... Replacing bar

Remove protective caps (1) on left/right.

Scheme 117

Scheme 117

Release hexagon screws (1) and countersunk head screws (2) on left/right.

Remove bar.

Installation

Tightening Torque for hexagon screw

Tightening Torque for countersunk head screw

Scheme 118

Scheme 118

86 10... Replacing drawbar members, left and right

Note. Remove complete brake pull rod. Removal of position light cable, REFER TO 86 10... REPLACING LICENSE PLATE LIGHT.

Release screws (1) on cross-member (2). Pull out cross-member (2) towards rear.

Installation

Tightening Torque

Scheme 119

Scheme 119: 86 10... Replacing drawbar members, left and right

Release countersunk head screws (1) and remove.

Installation

Tightening Torque

Scheme 120

Scheme 120

Remove cable holder (1) and remove wiring harness (2) from drawbar member (3).

Scheme 121

Scheme 121

Remove cable (1) from position light housing (2). Pull out cable (1) through drawbar member aperture (3).

Scheme 122

Scheme 122

Release all screws on cross-member (1) and remove cross-member (1).

If necessary, release screws on mounting brackets (2) and remove cross-members (3).

Installation

Use new self-locking nuts.

Tightening Torque

Scheme 123

Scheme 123

Unscrew bolt (1). Grip nut from rear through assembly hole (2) in cross-member.

Installation

Use new self-locking nuts.

Tightening Torque

Scheme 124

Scheme 124

Tilt drawbar member (1) down in direction of arrow A and pull out towards rear in direction of arrow B.

Scheme 125

Scheme 125

86 10... Replacing gaiter

Position brake lever fully towards rear.

Release screws (1) and (2) and remove. Pull off towing attachment (3) in direction of arrow.

Installation

Tightening Torque

Scheme 126

Scheme 126: 86 10... Replacing gaiter

Pull off gaiter (1) in direction of arrow.

Scheme 127

Scheme 127

86 10... Replacing holder for chock

Pull bar (1) down in direction of arrow A. Pull out chock (2) in direction of arrow B at an angle towards bottom.

Scheme 128

Scheme 128: 86 10... Replacing holder for chock

Release and unscrew cheese head tapping screws (1) on holder (2).

Scheme 129

Scheme 129

86 10... Replacing lashing plate and lashing eye

Releasing lashing eye

Pull spring bar (1) upwards in direction of arrow A. Slide lashing eye (3) in direction of arrow B and remove from lashing plate (2).

Scheme 130

Scheme 130: 86 10... Replacing lashing plate and lashing eye

Release countersunk head screws (1) and remove lashing plate.

Installation

Tightening torque

Scheme 131

Scheme 131

Locking lashing eye

Position lashing eye (1) on circular openings on lashing plate (2). Press lashing eye (1) in direction of arrow A into lashing plate (2). In this position, slide lashing eye (1) in direction of arrow B. Spring bar (3) snaps in, anchors and secures lashing eye (1) in lashing plate (2).

Scheme 132

Scheme 132

86 10... Replacing license plate light

Release screws (1) and remove license plate light (2) from mounting.

Scheme 133

Scheme 133: 86 10... Replacing license plate light

Disconnect flat connector (1) in direction of arrow.

Scheme 134

Scheme 134

86 10... Replacing position light

Unclip cover (1) on side recess (arrow).

Scheme 135

Scheme 135: 86 10... Replacing position light

Pull flat connector (1) from flat contact.

Scheme 136

Scheme 136

Pull out cable (1) completely.

CAUTIONBefore drilling out rivet heads, drive in rivet pins with a punch. Drill out rivet heads (2) and remove position light housing from front.

Scheme 137

Scheme 137

86 10... Replacing rear light

Release thumb screws (1), slide light guard (2) in direction of middle of car and tilt out towards rear.

Scheme 138

Scheme 138: 86 10... Replacing rear light

Turn handwheel (1) counterclockwise in direction of arrow and remove base (2).

Scheme 139

Scheme 139

Release nuts (1) and press rear light (2) out towards front.

Installation

Use new self-locking nuts.

Tightening Torque

Scheme 140

Scheme 140

86 10... Troubleshooting on multi-trailer

FaultCauseRemedy
Trailer already brakes when foot is taken off acceleratorShock absorber of overrunning equipment faultyReplace shock absorber of overrunning equipment
Reversing sluggish or not possibleBrake system adjusted too stronglyAdjust brake system
NOTE: When automatic reversing is activated, there is a residual braking torque caused by the design. This resultsBrake shoes jammedFree brake shoes, replace complete brake shoes with brake shoe carrier if necessary
In slightly heavier overrunning.Cables overtensionedAdjust brake system
Handbrake effect too weakFaulty adjustmentAdjust brake system
Faulty spring force accumulatorAdjust spring force accumulator
Brake cables heavily contaminated, corroded or kinkedFree cables, replace if necessary
Wheel brakes overheatingBrake system incorrectly adjustedAdjust brake system
Overrunning equipment is sluggishLubricate overrunning equipment
Brake cables heavily contaminated, corroded or kinkedFree cables, replace if necessary
Cables overtensionedAdjust brake system
Wheel brakes contaminatedClean wheel brakes
Reversing lever of overrunning equipment jammedRemove reversing lever, clean and grease with conventional BMW lubricants
Braking effect too weakExcessive play in brake systemAdjust brake system
Brake linings glazed, fouled by oil, damaged or wornReplace complete brake shoes, clean brake drums, replace if necessary
Overrunning equipment is sluggishLubricate overrunning equipment
Brake cables heavily contaminated, corroded or kinkedFree cables, replace if necessary
Jolting braking or starting offExcessive play in brake systemAdjust brake system
Shock absorber of overrunning equipment faultyReplace shock absorber of overrunning equipment
Brake shoes jammedReplace complete brake shoes with brake shoe carrier
Brakes squeal or rattleWheel brakes contaminated or wornClean wheel brakes, replace brake shoes and/or brake drums if necessary
Out-of-round or banging brake drumReplace brake drums
Pad looseReplace brake shoes
Wheel-bearing play excessiveReplace wheel bearings
Brakes pull to one sideTire pressure incorrectCorrect tire pressure
Brake linings glazed, fouled by oil, damaged or wornReplace complete brake shoes, clean brake drums, replace if necessary
Suspension shock absorber has no effectReplace suspension shock absorber
Brake pads worn at angleWheel-bearing play excessiveReplace wheel bearings
Pads worn to less than minimum thicknessReplace brake shoes
Towing attachment fails to engage after connectionInternal attachment parts contaminatedClean and lubricate attachment
NOTE
When automatic reversing is activated, there is a residual braking torque caused by the design. This results

MULTI-TRAILER TROUBLESHOOTING CHART

86 21... Adjusting hood pretension - Camloc fastener with spacers

Note. At least two persons are needed to install and remove the hood. Before installing and removing the hood, secure the BMW multitrailer and the entire combination against rolling. For this purpose, use the parking brake and the chocks of the BMW multitrailer. To help adjust the hood pretension, you will need four blocks with a minimum height of 60 mm.

Installation

Before attaching the hood, thoroughly clean the top side of the GFP apron of the BMW multitrailer.

It is particularly important to clean the contact surface of the GFP apron (1) (marked in gray) on which the rubber seal of the hood rests.

Scheme 141

Scheme 141: 86 21... Adjusting hood pretension - Camloc fastener with spacers

The following text describes how to adjust the hood pretension as an example at one support area of the platform or at one hood fastener. The pretension is adjusted at the other support areas and fasteners in the same sequence.

The hood must be fixed on the platform in such a way that the rubber seal of the hood is placed under pretension or compressed. Only with this pretension is it possible to obtain a tight seal between hood and platform. Pretension is achieved with the Camloc fasteners and by using spacers.

Two different types of spacers (2) are available for each Camloc fastener (1): one thick and one thin. You can fit one, two or no spacer (2) on the Camloc fastener (1).

Scheme 142

Scheme 142

Access to hood lighting plug (1)

Right side lid.

Open out spring-loaded cap (2) on socket (3) and remove hood lighting plug (1). Close cap (2). Insert hood lighting plug (1) into plug receptacle (4).

Scheme 143

Scheme 143

Unlocking Camloc fastener

Wing (1) of Camloc fastener (2) is parallel to outer edge of hood. Turn Camloc fastener (2) counterclockwise until it is heard and felt to unlock.

Locking

Press hood in lid frame downwards by hand. Turn Camloc fastener clockwise until it is heard and felt to lock into place. Wing (1) of Camloc fastener is parallel to outer edge of hood.

Scheme 144

Scheme 144

Raise hood and place block (1) between centering pin (2) and platform. Lower hood and position centering pin (2) on block (1).

Scheme 145

Scheme 145

Remove spring nut (1) from Camloc fastener (2).

Installation

Use new spring nut.

Scheme 146

Scheme 146

Remove Camloc fastener (1) from locating hole (2).

Installation

Press Camloc fastener (1) downwards until contact is made with hood stop. Wing (3) of Camloc fastener points to middle of hood.

Scheme 147

Scheme 147

Replacing spacer

Remove spacer (1) from Camloc fastener (4) by aligning opening (2) over lateral pin (3).

Reducing pretension

Reduce spacer thickness, replace spacer or install Camloc fastener without spacer.

Increasing pretension

Fit a thicker spacer or two spacers.

Installation

Place spacer (1) on Camloc fastener (4) and turn until it is in a secure position.

Scheme 148

Scheme 148

Check that hood seal is correctly seated.

Check that Camloc fasteners are locked. Lift hood by handle recesses. Hood must not be able to move with respect to platform of BMW multitrailer.

86 21... Adjusting rear lid to fit

Note. The following text describes how to adjust the rear lid to fit at one mounting point as an example. Proceed in the same way for the other mounting points.

Height adjustment of rear lid

Release screws (1) and move rear lid in direction of arrows.

Depth adjustment of rear lid

Release screws (2) and move rear lid in direction of arrows.

Installation

Tightening Torque, height adjustment

Tightening Torque, depth adjustment

Scheme 149

Scheme 149: 86 21... Adjusting rear lid to fit

Adjust gap (A) evenly all around without displacement and correct if necessary.

Scheme 150

Scheme 150

Check lid in transition (B) to hood for displacement and correct if necessary (flush).

Scheme 151

Scheme 151

To align lid in transverse direction, you can install or remove plastic washers (3) between hinge bracket (1) and mounting bracket (2).

Installation

There must always be a plastic washer (3) fitted on left and right sides of mounting bracket (2). Plastic washers are available in thicknesses of 1 mm and 3 mm.

Scheme 152

Scheme 152

Check lid in transition (C) to hood (flush) and correct if necessary. Correction is made by inserting or omitting plastic washers (Scheme 152)

Scheme 153

Scheme 153

86 21... Adjusting rotary striker lock

The following text describes how to adjust the rotary striker lock on the rear lid as an example. Proceed in the same way for the side lids. Adjust the lock while the lid is open.

Release screws (1) and adjust rotary striker lock (2) in elongated hole area in direction of arrows.

Installation

Tightening Torque

Scheme 154

Scheme 154: 86 21... Adjusting rotary striker lock

86 21... Adjusting side lid to fit

Note. The following text describes how to adjust the side lid to fit at one mounting point as an example. Proceed in the same way for all other mounting points.

Height adjustment of side lid

Release screws (1) and move side lid in direction of arrows.

Installation

Tightening Torque

Scheme 155

Scheme 155: 86 21... Adjusting side lid to fit

Depth adjustment of side lid

Release screws (1) and move side lid in direction of arrows.

Installation

Tightening Torque

Scheme 156

Scheme 156

Adjust gap (A) evenly all around and correct if necessary.

Scheme 157

Scheme 157

Check lid in transition (B) to hood for displacement and correct if necessary (flush).

Scheme 158

Scheme 158

To align lid in direction of travel, you can install or remove a spacer plate (3) between mounting bracket (1) and hinge (2).

Scheme 159

Scheme 159

Check lid in transition (C) to hood for displacement and correct if necessary (flush). Correction is made by inserting or omitting spacer plates (Scheme 159)

Scheme 160

Scheme 160

86 21... Attaching/replacing BMW badge

Position of attachment: inside of rear lid

Remove plastic cover (1) from bore holes (2).

Scheme 161

Scheme 161: 86 21... Attaching/replacing BMW badge

Inserting a set of pointed pliers through bore holes (1), detach retaining washers (2) from pins of BMW badge.

Installation

Use only new retaining washers.

Scheme 162

Scheme 162
CAUTIONInstruction for removing BMW badge: Slide a blunt object (e.g. a wooden wedge) under the BMW badge and carefully lever off the badge.

Position of attachment: outside of rear lid

The BMW badge must be attached at room temperature.

Degrease bonding area with petroleum ether.

Rub down bonding area with a dry cloth.

Peel off protective film on BMW badge (1).

Insert BMW badge (1) with pin (2) into bore hole (3). If bore holes (3) are considerably larger than pin (2), optically align BMW badge (1) exactly.

Press down BMW badge (1) firmly.

Scheme 163

Scheme 163

Position of attachment: inside of rear lid

By inserting a 1/4" ratchet with extension and socket wrench insert (7 mm A/F) through bore holes (2), attach a retaining washer (1) in each case to pin of BMW badge. In so doing, press down on outside of rear lid with one hand on BMW badge and grip.

Push on relevant retaining washer (1) as far as it will go.

Scheme 164

Scheme 164

Position of attachment: inside of rear lid

Insert plastic cover (1) in bore holes (2).

Scheme 165

Scheme 165

Distance between hood edge and lower edge of BMW logo (1) is 100 mm.

Distance between middle of lock and lettering (2) is 300 mm.

Installation

Degrease bonding areas with benzine. Rub down bonding area with a dry cloth.

Position of BMW logo (1): parallel to lower edge.

Scheme 166

Scheme 166: 86 21... Fitting BMW logo

86 21... Installing hood seal

Note. Removing old seal: In a straight area of hood, grip old seal piping with a pair of pliers and pull off horizontally. Grip detached seal with both hands and uniformly pull away from hood ridge.

Push seal piping (1) by hand onto hood ridge (2). Using a rubber hammer, gently tap seal piping (1) as far as it will go onto hood ridge (2). Make sure piping is evenly positioned especially in radii of hood ridge.

Installation

Position end face of seal at front end of hood in a straight area. Lay seal from front to rear.

Scheme 167

Scheme 167: 86 21... Installing hood seal

86 21... Installing rubber roof strip

Note. Pull off old rubber roof strip and remove remaining traces of adhesive with universal cleaner, refer to BMW Operating Fluids. Rub down with a dry cloth.

Select rubber roof strip according to length of roof recess (1). Arrange chamfered ends of rubber roof strip to match shape of roof recess (1).

Installation

Pretreat bonding area and stick on rubber roof strip according to manufacturer's instructions.

Scheme 168

Scheme 168: 86 21... Installing rubber roof strip

86 21... Installing seal for rear lid and side lid

Note. The following text describes how to install the seal for the rear lid as an example. Proceed in the same way for the side lids. Removing old seal: Open lid. Grip seal piping with both hands and pull seal off hood ridge. Remove old seal over lid.

Push seal piping (1) by hand onto hood ridge (2). Using a rubber hammer, gently tap seal piping (1) as far as it will go onto hood ridge (2). Make sure piping (1) is evenly positioned especially in radii of hood ridge.

Installation

Always position end face of seal in a straight area only

e.g. on cross-member or on upper hood ridge of rear lid.

Suitable areas on side lids

Upper and lower hood ridge.

Scheme 169

Scheme 169: 86 21... Installing seal for rear lid and side lid

Sealing lip of seal must point outwards.

After installing from inside and outside, check correct seating between lid seal and lid. Lid must rest without air on lid seal.

86 21... Installing sponge rubber seal

Note. Removing old sponge rubber seal: Pull off old sponge rubber seal. Remove remaining traces of adhesive with universal cleaner.

Sponge rubber seal runs along area marked gray (1).

Scheme 170

Scheme 170: 86 21... Installing sponge rubber seal

Lay sponge rubber seal (1) in middle of hood contact surface (2).

Installation

Degrease contact surface (2) with benzine and rub down with a dry cloth. Stick on sponge rubber seal (1) according to manufacturer's instructions. Position end face of seal (1) in a straight area.

Scheme 171

Scheme 171
IMPORTANTAt least two persons are needed to install and remove the hood from the platform. Before installing and removing the hood, secure the BMW multitrailer and the entire combination against rolling. For this purpose, use the parking brake and the chocks of the BMW multitrailer. The hood can also be set up and lowered with the aid of the universal lift available from BMW in conjunction with the roof racks and the hood adapter. Under no circumstances should work of any kind be carried out below the suspended hood.

For maintenance and repair work, raise the hood using a lifting platform. Twin-column lifting platforms, body lifting platforms and twin-stamp underfloor platforms are suitable. The seating plates and areas of the lifting platform must be adjustable according to the dimensions of (Scheme 172).

Scheme 172

Scheme 172

The lifting platform must conform to the relevant legal provisions of the accident prevention regulations and be serviced as specified. Comply with the lifting platform operating instructions, in particular the safety instructions and the carrying capacity.

Make sure you adhere to the BMW-recommended work area of 5 x 7 m and to an escape route of 0.6 m between two lifting platforms.

Please comply with the following instructions before raising the hood

  1. Raise only when it is unloaded
  2. Ensure sufficient clearance between the seating plates/seating areas and the GFP edge of the hood
  3. The hood must always be positioned in the middle of the lifting platform.
IMPORTANTThe hood may only be raised at the pin (1). Under no circumstances may the hood be raised at the GFP edge of the hood (2). (Scheme 173) Exclusively for removal of pin (1), raise the hood in the GFP area. Also refer to: 86 21... REMOVING CENTERING PIN FROM MOUNTING BRACKET.

Scheme 173

Scheme 173

86 21... Removing ball pivot

Note. Remove gas spring, REFER TO 86 21... REMOVING GAS SPRING.

Note. The following text describes how to remove the ball pivot from the hinge retaining bracket on the rear lid as an example. Proceed in the same way for the other ball pivots. Make sure the attachments are reinstalled in the correct sequence. Only in this way will the gas springs open and close properly.

Grip ball pivot (1) at hexagon mount (2) and release nut (3).

Installation

Use new self-locking nut.

Tightening Torque

Scheme 174

Scheme 174: 86 21... Removing ball pivot

86 21... Removing centering pin from mounting bracket

Note. Exclusively for removal of pin, raise the hood in the GFP area. For raising, use a wooden block with a maximum width of 35 mm and a height of 45 mm. The length must be selected depending on the lifting platform securing point. Ensure the hood is secure on the blocks.

Position block (1) so that it is only located in area of sponge rubber seal (2).

Scheme 175

Scheme 175: 86 21... Removing centering pin from mounting bracket

Insert a mandrel into hole (1) of pin (2) and turn counterclockwise.

Scheme 176

Scheme 176

86 21... Removing gas spring

Only remove the gas spring while the lid is open. The gas spring will then not be subjected to load and the spring piston will not jump out of the spring housing. Prop the lid open with one hand to prevent it dropping closed. Remove the gas spring with your other hand.

Note. Side lids are each fitted with a gas spring. Rear lid is fitted with two gas springs. The following text describes how to remove the gas spring at one mounting point as an example. Proceed in the same way for all other mounting points. Rear lid: Replace gas springs in pairs only.

Lever out retaining clip (1) in recess (2) and push on gas spring head (3) in direction of arrow. Detach spring head (3) from ball pivot.

Installation

Push retaining clip (1) back into its original position. Press spring head (3) onto ball pivot until spring head (3) snaps audibly into place.

Scheme 177

Scheme 177: 86 21... Removing gas spring

86 21... Removing gas spring retaining bracket

Release screws (1) and remove gas spring retaining bracket (2) from mounting bracket (3).

Installation

Install retaining bracket so that it is centered in elongated holes.

Tightening Torque

Scheme 178

Scheme 178: 86 21... Removing gas spring retaining bracket

86 21... Removing hinge bracket on rear lid

Note. Remove rear lid, REFER TO 86 21... REMOVING LID. Remove gas spring, remove gas spring on hinge side only, REFER TO 86 21... REMOVING GAS SPRING.

Raise edge (1) of retaining clip (2) and slide in direction of arrow towards rear.

Scheme 179

Scheme 179: 86 21... Removing hinge bracket on rear lid

Remove plastic washer (1). Pull hinge bracket (2) in direction of arrow out of mounting bracket (3).

Installation

There must always be a plastic washer (1) fitted on left and right sides of mounting bracket (3).

Scheme 180

Scheme 180

86 21... Removing lid

Note. Adjusting side lid to fit, REFER TO R8621... ADJUSTING SIDE LID TO FIT. Adjusting rear lid to fit, REFER TO R8621... ADJUSTING REAR LID TO FIT.

Note. The text describes how to remove the lid at one rear lid mounting point as an example. Proceed in the same way for the side lids. Spare part lids are always supplied without complete locking systems.

Two persons are required for this task.

Note. Open lid.

Loosen screws (1). Remove lid (2).

Installation

Rear lid: shoulder (3) points to middle of hood.

Side lid: shoulder (3) points to outside of hood.

Tightening Torque

Scheme 181

Scheme 181: 86 21... Removing lid

86 21... Removing lock barrel

Note. The following text describes how to remove the lock barrel on the rear lid as an example. Proceed in the same way for the side lids. Remove the lock barrel while the lid is open. Remove cover, spring nut and pull rod, REFER TO 86 21... REMOVING ROTARY STRIKER LOCK.

Slide retainer (1) in direction of arrow away from lock barrel (2). Remove lock barrel (2).

Installation

Examine rubber backing for damage and replace if necessary. When replacing lock barrel, make sure coding of new lock barrel matches coding of fitted lock barrel (simultaneous closing).

Scheme 182

Scheme 182: 86 21... Removing lock barrel

86 21... Removing lock striker fixture on rear lid

Grip rubber seal on seal piping (1) and pull off in area of lock striker fixture (2). Grip lid seal (3) on seal piping (4) and pull off in area of lock striker fixture (2).

Scheme 183

Scheme 183: 86 21... Removing lock striker fixture on rear lid
CAUTIONBefore drilling out rivets, drive in rivet pins with a punch. Drill out rivets (1+2) and remove lock striker fixture (3).

Installation

Rivets (1) have black heads and long shanks. Rivets (2) have silver heads and short shanks.

Scheme 184

Scheme 184

86 21... Removing plug for inside light

Note. Two different types of plugs are used for the inside light. Both types function in the same way, only their designs are different.

Type 1

Release screw (1) and separate housing plug (2).

Scheme 185

Scheme 185: 86 21... Removing plug for inside light

Release screws (1) and disconnect cables (2) from screw clamp.

Scheme 186

Scheme 186

Type 2

Release screw (1) and separate housing plug (2).

Scheme 187

Scheme 187

Remove contact parts (1+2).

Installation

When installing, make sure contact parts (1+2) are in correct installation position.

Scheme 188

Scheme 188

86 21... Removing roof railing

Note. The text describes how to remove the roof railing at one mounting point as an example. Proceed in the same way for the other mounting points.

Open cover (1) and fold down.

Scheme 189

Scheme 189: 86 21... Removing roof railing

Unscrew bolt (1).

After releasing three retaining screws, lift off roof railing (2).

Installation

Check molded sealing parts for faults and replace if necessary. Pay attention to identification of molded sealing parts and position accordingly.

Check butylene tape seal.

Use new screws. Coat all screws with OKS 90 thread locking adhesive.

First screw down railing adapter in middle. Then press roof railing downwards with a force of approx. 50 N. Then screw down railing adapter at front and rear.

Tightening Torque for roof railing at front and rear

Tightening Torque for roof railing in middle

Scheme 190

Scheme 190

86 21... Removing roof railing adapter

Note. Removing roof railing, REFER TO 86 21... REMOVING ROOF RAILING

Remove molded sealing part (1).

Installation

All molded sealing parts must rest flat on hood. Molded sealing parts are marked according to their position.

Scheme 191

Scheme 191: 86 21... Removing roof railing adapter

Cut butylene tape (1) out of railing adapter (2) along dotted line (3) with a knife.

Installation

Use butylene tape, 5 mm round, for sealing railing adapter on hood roof.

Scheme 192

Scheme 192

Railing adapters at front and rear: Release screws (1) from inside of hood. Pull out railing adapter (2) and spacer plate (3) towards bottom.

Installation

Use new screws. Coat all screws with OKS 90 thread locking adhesive. Install spacer plate (3) in its original position.

Tightening Torque for railing adapters at front and rear

Scheme 193

Scheme 193

Railing adapter in middle: Release screws (1) from inside of hood. Twist out railing adapter from outside.

Installation

Use new screws. Tightening Torque for railing adapter in middle

Scheme 194

Scheme 194

86 21... Removing rotary striker lock

The following text describes how to remove the rotary striker lock on the rear lid as an example. Proceed in the same way for the side lids. Remove the lock while the lid is open.

Release screws (1) and remove cover (2). On rear lid, remove red cap (3).

Installation, rear lid only

Place red cap back on pull rod. Red cap serves to indicate rear lid emergency unlocking facility.

Scheme 195

Scheme 195: 86 21... Removing rotary striker lock

Remove spring nut (1) from pull rod (2).

Installation

Use new spring nut.

Scheme 196

Scheme 196

Unhook pull rod (1) from rocker (2).

Scheme 197

Scheme 197

Release screws (1) and remove rotary striker lock (2) from opening (3).

Installation

Tightening Torque

Use new Stover nuts.

Scheme 198

Scheme 198

Detach spring nut (1) from pull rod (2). Remove pull rod (2) from rotary striker lock (3).

Installation

Use new spring nut.

Scheme 199

Scheme 199

86 21... Removing side lid hinge

Note. Remove side lid, REFER TO 86 21... REMOVING LID. Remove gas spring, remove gas spring on hinge side only, REFER TO 86 21... REMOVING GAS SPRING.

Unscrew bolt (1). Remove hinge (2). If fitted, remove spacer plate(s) (3).

Installation

Pass screws (1) again through spacer tubes. Reinstall existing spacer plate(s) in its/their original position(s). Use new self-locking nuts.

Tightening Torque

Scheme 200

Scheme 200: 86 21... Removing side lid hinge

86 21... Replacing inside light

Unclip cover (1) at side recess (arrowed) and remove towards bottom.

Scheme 201

Scheme 201: 86 21... Replacing inside light

Unclip lamp housing (1) at side recess (arrowed).

Scheme 202

Scheme 202

Disconnect flat connector (1) from flat connector contact.

Scheme 203

Scheme 203
CAUTIONBefore drilling out rivets, drive in rivet pins with a punch. Drill out rivets (1). Pull off inside light mounting bracket (2) over flat connector (3).

Scheme 204

Scheme 204

86 21... Replacing inside light power cable

Note. Remove inside light cover and lamp housing, REFER TO 86 21... REPLACING INSIDE LIGHT. Remove inside light plug, REFER TO 86 21... REMOVING INSIDE LIGHT PLUG.

Carefully remove adhesive bonds of power cable (1) from hood surface.

Installation

Carefully remove traces of old adhesive with a scraper. Use standard heat gun adhesive as adhesive.

Scheme 205

Scheme 205: 86 21... Replacing inside light power cable

Carefully remove adhesive bonds of power cable (1) from hood surface.

Installation

Carefully remove traces of old adhesive with a scraper. Use standard heat gun adhesive as adhesive.

Scheme 206

Scheme 206

Remove flat connectors (1). Strip cable ends (2) and connect to a new cable. Feed cable connection through opening (3).

Scheme 207

Scheme 207

Lay new power cable with old power cable through duct (1).

Scheme 208

Scheme 208

See also:
REFER TO TIGHTENING TORQUE 86 10 32AZ.
REFER TO 86 10... REPLACING BAR
REFER TO 86 10... REPLACING LASHING PLATE AND LASHING EYE
REFER TO 86 10... REPLACING 12 VOLT SOCKET
REFER TO 86 10... REMOVING PLASTIC BUSH/METAL BUSH
REFER TO 86 10... REPLACING REAR LIGHT
REFER TO 86 10... DISASSEMBLY OF FRONT APRON
REFER TO 86 10... DISASSEMBLY OF LEFT AND RIGHT APRONS
REFER TO 86 10... DISASSEMBLY OF REAR APRON
REFER TO 86 10... DISASSEMBLY PROCEDURE OF RIVET CONNECTION, REAR SUPPORT
REFER TO 86 10... REPLACING POSITION LIGHT.
REFER TO 86 10... DISASSEMBLY OF LICENSE PLATE
86 21... REMOVING CENTERING PIN FROM MOUNTING BRACKET
REFER TO 86 10... DISASSEMBLY OF CAMLOCK RETAINING CAM
REFER TO 86 10... ADJUSTING BRAKE SYSTEM
REFER TO 86 10... REMOVING BRAKE SHOES.
REFER TO 86 10... REMOVING AND INSTALLING COIL SPRING.
REFER TO 86 10... REPLACING LICENSE PLATE LIGHT.
REFER TO 86 21... REMOVING GAS SPRING.
REFER TO 86 21... REMOVING BALL PIVOT.
REFER TO 86 21... REMOVING LID.
REFER TO R8621... ADJUSTING SIDE LID TO FIT.
REFER TO R8621... ADJUSTING REAR LID TO FIT.
REFER TO 86 21... REMOVING ROOF RAILING
REFER TO 86 21... REPLACING INSIDE LIGHT.
REFER TO 86 21... REMOVING INSIDE LIGHT PLUG.