Home/Audi/S5/Audi S5 I (2007-2011)/Repair manual/Mechanical/4.2l - Crankshaft, Cylinder Block - Engine Code(s): Caua (c…
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4.2l - Crankshaft, Cylinder Block - Engine Code(s): Caua (coupe) Audi S5 I

Mechanical 46 illustrations ~3176 words

CRANKSHAFT OVERVIEW

Note. For assembly work, secure the engine on the engine/transmission holder VAS 6095. Refer to ENGINE, SECURING TO ENGINE AND TRANSMISSION HOLDER . Lubricate all bearings and running surfaces.

Scheme 1

Scheme 1: CRANKSHAFT OVERVIEW
  1. Cylinder Block Paired to -12- Sealant applied on cylinder block (for guide frame) (Scheme 3)
  2. Seals Replace
  3. Crankshaft Shaft Seal, Belt Pulley Side Removing and installing, refer to «CRANKSHAFT SHAFT SEAL, BELT PULLEY SIDE, REPLACING»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__crankshaft-shaft-seal-belt-pulley-side)
  4. Alignment Bushing Quantity: 2 Insert into guide frame Installed position (Scheme 4)
  5. Bolt 9 Nm
  6. Guide Tube for Oil Dipstick
  7. O-ring Replace
  8. Bolts For guide frame Replace Various screw sizes Tightening specification and sequence (Scheme 5)
  9. Baffle Plate
  10. Bolt Tightening specification and sequence (Scheme 2)
  11. Bolt For guide frame to cylinder block sealing surfaces Different bolt lengths Tightening sequence (Scheme 5)
  12. Guide Frame Paired to -1- Sealant applied on cylinder block (for guide frame) (Scheme 3)
  13. Thrust Washer Only at the 4th crankshaft bearing Installed position: lubricating grooves face outward Note locating point in guide frame
  14. Bearing Shell For guide frame without lubricating groove Always replace if removed Insert new bearing shells for guide frame with proper color marking: New crankshafts, refer to «MAIN BEARING SHELLS, NEW CRANKSHAFT, ALLOCATING»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe), used and reworked, refer to crankshafts «MAIN BEARING SHELLS, USED AND REWORKED CRANKSHAFTS, ALLOCATING»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__main-bearing-shells-used-and-reworked)
  15. Crankshaft Measuring axial play, refer to «CRANKSHAFT AXIAL PLAY, MEASURING»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__crankshaft-axial-play-measuring) Radial clearance, measuring, refer to «CRANKSHAFT, MEASURING RADIAL PLAY»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__crankshaft-measuring-radial-play) Crankshaft dimensions, refer to «CRANKSHAFT DIMENSIONS»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__crankshaft-dimensions)
  16. Thrust Washer Only at the 4th crankshaft bearing Installed position: lubricating grooves face outward
  17. Bearing shell For cylinder block with oil groove Always replace if removed Insert new bearing shells for cylinder block with proper color marking: New crankshafts, refer to «MAIN BEARING SHELLS, NEW CRANKSHAFT, ALLOCATING»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe), used and reworked crankshafts, refer to «MAIN BEARING SHELLS, USED AND REWORKED CRANKSHAFTS, ALLOCATING»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__main-bearing-shells-used-and-reworked)
  18. Seals Replace

Scheme 2

Scheme 2

Tighten baffle plate bolts to 9 Nm in sequence -1 to 16-.

Scheme 3

Scheme 3

Clean sealing surfaces, must be free of oil and grease.

CAUTIONThe lubrication system could be plugged with excess sealant. Do not apply sealant bead thicker than indicated.

Apply sealant beads -arrows- to the clean sealing surfaces as shown in the illustration.

  1. Thickness of sealant beads: 2.0 mm.

Position seals -1 through 4-.

Note. The guide frame must be installed within 5 minutes after applying the sealant.

Scheme 4

Scheme 4

If there are no alignment bushings -arrows- at the locations marked in the guide frame, insert them.

Scheme 5

Scheme 5

Note. Replace bolts that are tightened to the specification.

Tighten the bolts in 5 steps in the sequence shown

StageBoltsTightening Specification/Additional Turn
1.1 through 1030 Nm
2.11 through 2020 Nm
3.1 through 1050 Nm
4.11 through 2030 Nm
5.1 through 20Tighten 90° further

Tighten the guide frame to cylinder block sealing surface bolts, -highlighted in dark-, in a diagonal sequence to 9 Nm.

DRIVE PLATE OVERVIEW

Note. For assembly work, secure the engine on the engine and transmission holder VAS 6095. Refer to ENGINE, SECURING TO ENGINE AND TRANSMISSION HOLDER .

Scheme 6

Scheme 6: DRIVE PLATE OVERVIEW
  1. Drive Plate With the bearing flange Check the running surfaces on the bearing flange and the clutch module holes for cracks and signs of wear. Removing and installing, refer to «DRIVE PLATE»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__drive-plate)
  2. Bolt 60 Nm plus an additional 90° turn Replace
  3. Needle Bearing Only for vehicles with manual transmissions Installed position: Closed side faces the engine Removing and installing, refer to «NEEDLE BEARING AT DRIVE PLATE, MANUAL TRANSMISSION»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__needle-bearing-at-drive-plate-manual)
  4. Sensor Wheel For the Engine Speed (RPM) sensor -G28
  5. Crankshaft
  6. Alignment Bushing
  7. Crankshaft Shaft Seal, Transmission Side Removing and installing, refer to «CRANKSHAFT SEAL, TRANSMISSION SIDE»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__crankshaft-seal-transmission-side)

Scheme 7

Scheme 7: MAIN BEARING SHELLS, NEW CRANKSHAFT, ALLOCATING
  1. Bearing shells with the correct thickness are allocated to the cylinder block in the factory. Colored dots on sides of bearing shells serve for identifying bearing shell thickness.
  2. Allocation of bearing shells to cylinder block is marked by one letter each at front left on cylinder block (can be read from outside) as shown in the illustration.
Letter on Cylinder BlockColor of Bearing
R=Red
G=Yellow
B=Blue

Note. In addition, the letters are also stamped on the guide frame.

Scheme 8

Scheme 8
  1. Bearing shells with the correct thickness are allocated to the guide frame in the factory. Colored dots on the sides of the bearing shells serve for identifying bearing shell thickness.
  2. Allocation of bearing shells to guide frame is marked by one colored dot each on crankshaft counterweight as shown in the illustration.
Colored Dot on CrankshaftColor of Bearing
RedRed
YellowYellow
BlueBlue

Scheme 9

Scheme 9
  1. Bearing shells with the correct thickness are allocated to the guide frame in the factory. Colored dots on the sides of the bearing shells serve for identifying bearing shell thickness.
  2. The allocation of bearing shells to guide frame is identified by a letter on the front crankshaft counterweight, as shown in the illustration. The "X" marks the end of the letter sequence and is near the bearing 1 color identification on the belt pulley side.

Note. Ignore -A-.

Letter on CrankshaftColor of Bearing
R=Red
G=Yellow
B=Blue

MAIN BEARING SHELLS, USED AND REWORKED CRANKSHAFTS, ALLOCATING

  1. Bearing shells are allocated to cylinder block corresponding to color markings stamped into cylinder block.
  2. With used and reworked crankshafts, the main crankshaft journals must be measured to allocate the appropriate bearing shells.
  3. Crankshaft dimensions, refer to «CRANKSHAFT DIMENSIONS»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__crankshaft-dimensions) .
  4. Thicker over-sized bearing shells are available for a reworked crankshaft. These have the same color markings as the original-size bearing shells.
Letter on Cylinder BlockColor of Bearing
R=Red
G=Yellow
B=Blue

Allocation of Crankshaft Bearing Shells for Guide Frame

  1. With used and reworked crankshafts, the main crankshaft journals must be measured to allocate the appropriate bearing shells.
  2. Any other markings on the crankshaft are invalid when reworking a crankshaft.
  3. Allocate bearing shells to the diameter of the main crankshaft pivot pins using the following table
Crankshaft Journal DiameterColor Identification of Bearing Shells for Guide Frame
Dimensions in mmRedYellowBlue
Basic dimension 65.00064.978 to 64.97264.972 to 64.96564.965 to 64.958
Repair stage 64.750 1)64.728 to 64.72264.722 to 64.71564.715 to 64.708
1) The same color marking applies to the thicker over-sized bearing for reworked crankshafts as for a new crankshaft despite the greater bearing thickness.

PISTONS AND CONNECTING ROD OVERVIEW

Note. Lubricate all bearings and running surfaces. Oil injector jet for piston cooling (Scheme 14)

Scheme 10

Scheme 10: PISTONS AND CONNECTING ROD OVERVIEW
  1. Bolts 60 Nm +90° Replace Lubricate the threads and contact surface
  2. Connecting Rod Bearing Cap Mark for installation later Mark affiliation to cylinder with paint (Scheme 12)Installation position of connecting rod pairs (Scheme 13)
  3. Bearing Shells Check that retaining tabs are secured Always replace if removed Over-sized bearings are available for reworked crankshaft connecting rod journals
  4. Connecting Rod Only replace as a set Mark affiliation to cylinder with paint (Scheme 12)Installation position of connecting rod pairs (Scheme 13)Axial play for each new connecting rod pair: 0.20 to 0.27 mm Axial play wear limit: 0.30 mm Radial clearance, measuring, refer to «CONNECTING ROD RADIAL CLEARANCE, MEASURING»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__connecting-rod-radial-clearance-measuring)
  5. Piston Pin Removing and installing, refer to «PISTON»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__piston)
  6. Locking Ring Replace Quantity: 2
  7. Piston Removing and installing, refer to «PISTON»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__piston) Piston and cylinder bore, checking, refer to «PISTON AND CYLINDER BORE, CHECKING»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe) Installed position (Scheme 11)
  8. Piston Rings Gap, measuring (Scheme 20)Measuring side clearance (Scheme 21)Use piston ring pliers (commercially available) for removing and installing Installed position: The "TOP" marking or side with writing faces the piston crown. Offset gaps by 120°.

Scheme 11

Scheme 11
CAUTIONThe coating on the piston crown could be destroyed. Mark the allocation to the cylinder on the piston crown with paint to install used pistons. Do not mark the piston crown with a punch, notch or similar object.

Installed position

  1. The arrows on the piston heads point to the belt pulley side.
  2. Large valve recesses -1- point toward center of engine.

Scheme 12

Scheme 12

Note. Only replace the connecting rods as a set.

Mark the connecting rod and connector rod bearing caps to each other and to the cylinder -arrow- with paint for installation.

Scheme 13

Scheme 13
  1. The molded tabs -arrows- on the beveled surfaces of connecting rod pairs "1 and 2", "3 and 4", "5 and 6" and "7 and 8" must face each other.

Scheme 14

Scheme 14
  1. Oil spray jet
  2. Insert bolts with locking compound and tighten to 9 Nm

Note. Do not bend the piston spray nozzles. Bend piston spray nozzles must be replaced.

Scheme 15

Scheme 15: RIBBED BELT DRIVE OVERVIEW
  1. Bolt 22 Nm
  2. Bolt 55 Nm
  3. Ribbed Belt Tensioning Damper Removing and installing, refer to «RIBBED BELT TENSIONER»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe)
  4. Ribbed Belt Check for wear Before removing, mark the direction of rotation using chalk or a felt-tip pen. Removing and installing, refer to «RIBBED BELT»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe) Do not kink When installing, make sure it is seated correctly on the ribbed belt pulleys
  5. Bolt 22 Nm
  6. Generator Removing and installing, refer to «REMOVAL AND INSTALLATION»(/audi/s5/i-2007-2011/remont/charging-system/#battery-starter-generator-cruise-control-coupe)
  7. Bolt For the correct tightening specification, refer to «BATTERY, STARTER, GENERATOR, CRUISE CONTROL»(/audi/s5/i-2007-2011/remont/charging-system/#battery-starter-generator-cruise-control-coupe)
  8. Bolt 46 Nm
  9. Generator Bracket
  10. Alignment Bushing For generator bracket Quantity: 2
  11. Idler Roller Cover
  12. Bolt 9 Nm
  13. Bracket For the idler roller
  14. Idler Roller for Ribbed Belt
  15. Bolt 22 Nm
  16. Vibration Damper With ribbed belt pulley Removing and installing, refer to «VIBRATION DAMPER»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe)
  17. Bolt Replace Clean the threaded holes with a thread tap. Insert with locking compound; Tightening specification and sequence (Scheme 16)
  18. Thrust Washer

Scheme 16

Scheme 16

Note. Replace bolts that are tightened to the specification. Clean the threaded holes with a thread tap. Install the bolts with locking compound

Tighten bolts in 3 stages as follows

StageBoltsTightening Specification/Additional Turn
1.Arrow15 Nm in a diagonal sequence
2.Arrow22 Nm in a diagonal sequence
3.ArrowIn a diagonal sequence, turn an additional 90°

CRANKSHAFT DIMENSIONS

Honing DimensionCrankshaft Bearing Journal Diameter mmConnecting Rod Journal Diameter mm
Basic dimension65.0000.022 - 0.04254.0000.022 - 0.042
Repair stage64.7500.022 - 0.04253.7500.022 - 0.042

FASTENER TIGHTENING SPECIFICATIONS

ComponentsFastener SizeNm
Bracket for the Idler Roller9
Connecting Rod Bearing Cap 1, 460 + 90°
Drive Plate 160 + 90°
Generator22
Generator Bracket 346
Guide Tube for Oil Dipstick9
Idler Roller for Ribbed Belt22
Oil Spray Jet 59
Ribbed Belt Tensioning Damper 2
22
55
1 Replace 2 For bolt tightening clarification, refer to RIBBED BELT DRIVE OVERVIEW and see items -1 and 2- 3 For bolt tightening clarification, refer to RIBBED BELT DRIVE OVERVIEW and see items -7 and 8- 4 Lubricate the threads and contact surface 5 Insert bolts with locking compound

VIBRATION DAMPER, TIGHTENING SPECIFICATION AND SEQUENCE

Note. Replace bolts that are tightened to the specification. Clean the threaded holes with a thread tap. Install the bolts with locking compound

Tighten bolts in 3 stages as follows

StageBoltsTightening Specification/Additional Turn
1.Arrow15 Nm in a diagonal sequence
2.Arrow22 Nm in a diagonal sequence
3.ArrowIn a diagonal sequence, turn an additional 90°

BAFFLE PLATE - TIGHTENING SPECIFICATIONS AND SEQUENCE

Tighten baffle plate bolts to 9 Nm in -1 to 16- sequence.

GUIDE FRAME TIGHTENING SPECIFICATIONS AND SEQUENCE

Note. Replace bolts that are tightened to the specification.

Tighten the bolts in 5 steps in the sequence shown

StageBoltsTightening Specification/Additional Turn
1.1 through 1030 Nm
2.11 through 2020 Nm
3.1 through 1050 Nm
4.11 through 2030 Nm
5.1 through 20Tighten 90° further

Tighten the guide frame to cylinder block sealing surface bolts, -highlighted in dark-, in a diagonal sequence to 9 Nm.

CONNECTING ROD RADIAL CLEARANCE, MEASURING

Special tools and workshop equipment required

  1. Plastigage

PROCEDURE

Remove connecting rod bearing cap.

Clean the bearing cap and journal.

Place the Plastigage over the entire width of the bearing journal or into the bearing shells.

Install the connecting rod bearing cap and tighten it to 60 Nm without any additional turns. Do not turn crankshaft.

Reinstall connecting rod cover.

Compare width of Plastigage with calibrated scale.

Radial clearance

  1. New: 0.020 to 0.069 mm.
  2. Wear limit: 0.120 mm.

Replace connecting rod bolts.

CRANKSHAFT AXIAL PLAY, MEASURING

Special tools and workshop equipment required

  1. Dial Gauge Holder VW 387
  2. Dial Gauge 0-10 mm VAS 6079

Scheme 17

Scheme 17: PROCEDURE

Install the VAS 6079 with the VW 387 on the cylinder block as shown in the illustration.

Place the dial gauge against the crankshaft counterweight.

Press the crankshaft against the dial gauge by hand and set the gauge to "0".

Press the crankshaft off the dial gauge and read the measurement.

  1. Axial clearance: 0.090 to 0.251 mm.

CRANKSHAFT, MEASURING RADIAL PLAY

Special tools and workshop equipment required

  1. Plastigage

Remove the guide frame and clean the bearing journals.

Place the Plastigage over the entire width of the bearing journal or into the bearing shells.

  1. Plastigage must rest in center of bearing shell.

Position the guide frame and tighten it to 30 Nm without tightening it further; do not turn the crankshaft.

Install the guide frame.

Compare width of Plastigage with calibrated scale.

Radial clearance

  1. New: 0.017 to 0.044 mm.
  2. Wear limit: 0.08 mm.

Scheme 18

Scheme 18: PISTON AND CYLINDER BORE, CHECKING

Measure approximately 15 mm from the lower edge at a 90° angle to the piston pin axis using a 75 to 100 mm external micrometer.

  1. Maximum deviation from nominal dimension: 0.03 mm.

Matching pistons are allocated to the different manufacturing stages of the cylinder block.

Piston Diameter mm
Manufacturing stage I nominal size84.490 1)
Manufacturing stage II nominal size84.590 1)
1) Measurement with coating (thickness = 0.01 mm). The coating wears off.

Scheme 19

Scheme 19

Measure in a diagonal sequence at 3 positions transversely -A- and longitudinally -B- using a cylinder gauge VAS 6078 or inside micrometer set 18-100 mm US1033/S.

  1. Maximum deviation from nominal dimension: 0.08 mm.
Cylinder Bore Diameter mm
Manufacturing stage I nominal size84.510 ± 0.005
Manufacturing stage II nominal size84.610 ± 0.005

Scheme 20

Scheme 20

Push the piston ring squarely from above down to approximately 15 mm from the bottom end of the cylinder.

Use a piston without a piston ring for sliding in.

Piston RingNew mmWear Limit mm
1st Compression ring0.20 to 0.350.80
2nd Compression ring0.20 to 0.400.80
Oil scraping ring0.20 to 0.400.80

Scheme 21

Scheme 21

Clean the piston ring groove before checking.

Piston RingNew mmWear Limit mm
1st Compression ring0.035 to 0.0850.200
2nd Compression ring0.005 to 0.0450.150
Oil scraping ring0.010 to 0.0500.200

CRANKSHAFT SEAL, TRANSMISSION SIDE

Special tools and workshop equipment required

  1. Assembly Tool T10122
  2. Pulling Hook T20143/2

Scheme 22

Scheme 22: PROCEDURE
  1. The transmission is removed. Refer to «REMOVAL AND INSTALLATION»(/audi/s5/i-2007-2011/remont/transmission-control-systems/#controls-housing-manual-transmission-0b4-awd-coupe) or «REMOVAL AND INSTALLATION»(/audi/s5/i-2007-2011/remont/transmission-control-systems/#controls-housing-automatic-transmission-0b6-awd-coupe) .

Remove the drive plate. Refer to DRIVE PLATE .

Pry out the seal with a T20143/2.

Clean the running and sealing surface.

Place the assembly device T10122/1 on the pull sleeve T10122/2 and slide the shaft seal -A- onto the pull sleeve.

Scheme 23

Scheme 23

Remove the assembly device.

Position the pull sleeve T10122/2 with the shaft seal -1- on the crankshaft.

Scheme 24

Scheme 24

Press the shaft seal in evenly all around with the thrust piece T10122/3 until flush.

Scheme 25

Scheme 25

Installing drive plate. Refer to DRIVE PLATE .

CRANKSHAFT SHAFT SEAL, BELT PULLEY SIDE, REPLACING

Special tools and workshop equipment required

  1. Oil Seal Extractor T40019
  2. Assembling Device T40048
  3. M8 x 55 mm bolt, quantity: 2

Scheme 26

Scheme 26: PROCEDURE

Remove vibration damper. Refer to VIBRATION DAMPER .

Position the inner part of the T40019 flush with outer part and secure it with the knurled screw.

Lubricate the seal remover threaded head, position it, and then install it into the shaft seal as far as possible using strong force.

Loosen the knurled screw and turn the inner portion against the crankshaft until the seal is pulled out.

Secure the seal remover in a vise at the flat spots and remove the seal using pliers.

Clean the running and sealing surface.

Place the assembly device T40048/1 on the pull sleeve T40048/2 and slide the shaft seal -1- onto the pull sleeve.

Scheme 27

Scheme 27

Remove the assembly device.

Place the T40048/2 on the crankshaft and slide the shaft seal -1- into the sealing surface on the cylinder block.

Scheme 28

Scheme 28

Note. Leave the pull sleeve for pressing onto the crankshaft.

Position the pull sleeve T40048/3 on the crankshaft with 2 M8 x 55 mm bolts -arrows-.

Scheme 29

Scheme 29

Install bolts by hand.

Tighten the bolts 1 / 2 turn each, alternating from side to side in order to press the shaft seal all the way in.

Install in reverse order of removal paying attention to the following

Install vibration damper. Refer to VIBRATION DAMPER .

DRIVE PLATE

Special tools and workshop equipment required

  1. Counter Hold Tool 10 - 201

Scheme 30

Scheme 30: REMOVING
  1. The transmission is removed. Refer to «REMOVAL AND INSTALLATION»(/audi/s5/i-2007-2011/remont/transmission-control-systems/#controls-housing-manual-transmission-0b4-awd-coupe) or «REMOVAL AND INSTALLATION»(/audi/s5/i-2007-2011/remont/transmission-control-systems/#controls-housing-automatic-transmission-0b6-awd-coupe) .

Insert the 10 - 201 to loosen the bolts.

CAUTIONThe outer surface of the bearing flange at the drive plate could be damaged. Use a multipoint socket wrench with a shaft at least 40 mm long to loosen and tighten the drive plate bolts.

Remove the bolts and remove the drive plate.

INSTALLING

Install in reverse order, paying attention to the following

  1. Tightening specification, refer to «DRIVE PLATE OVERVIEW»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__drive-plate-overview) .

Note. Replace bolts that are tightened to the specification. Vehicles with a manual transmission: There is a needled bearing in the drive plate. Check if the needle bearing is inserted before installing. Needle bearing, removing from and installing on drive plate. Refer to NEEDLE BEARING AT DRIVE PLATE, MANUAL TRANSMISSION .

Pay attention to the alignment bushing when installing the drive plate.

Reposition the 10 - 201 to tighten the bolts.

NEEDLE BEARING AT DRIVE PLATE, MANUAL TRANSMISSION

Special tools and workshop equipment required

  1. Tube 31.5 mm Dia. VW 418 A
  2. Tube 28 mm Dia. 100 mm VW 421
  3. Sleeve 40 - 103

Scheme 31

Scheme 31: PROCEDURE
  1. The transmission is removed. Refer to «REMOVAL AND INSTALLATION»(/audi/s5/i-2007-2011/remont/transmission-control-systems/#controls-housing-manual-transmission-0b4-awd-coupe) .

Remove the drive plate. Refer to DRIVE PLATE .

Place the 40 - 103 under the drive plate to remove and install.

Press the bearing sleeve out using the VW 421 and shop press.

  1. The smaller diameter of the VW 421 faces the drive plate.

Carefully press the needle bearing in as far as the stop using the VW 418 A and shop press.

Scheme 32

Scheme 32
  1. Installed position: the closed side of the needle bearing faces the engine.

Installing drive plate. Refer to DRIVE PLATE .

PISTON

Special tools and workshop equipment required

  1. Pilot Drift VW 222 A
  2. Engine and Transmission Holder VAS 6095
  3. Piston ring compressor, commercially available

REMOVING

  1. Engine secured to the VAS 6095. Refer to «ENGINE, SECURING TO ENGINE AND TRANSMISSION HOLDER»(/audi/s5/i-2007-2011/remont/mechanical/#42l-engine-assembly-engine-codes-caua-coupe__engine-securing-to-engine-and-transmission)

Remove the cylinder head

  1. «LEFT CYLINDER HEAD, REMOVING»(/audi/s5/i-2007-2011/remont/mechanical/#42l-cylinder-head-valvetrain-engine-codes-caua-coupe__left-cylinder-head-removing)
  2. «RIGHT CYLINDER HEAD, REMOVING»(/audi/s5/i-2007-2011/remont/mechanical/#42l-cylinder-head-valvetrain-engine-codes-caua-coupe__right-cylinder-head-removing)

Remove the upper oil pan. Refer to UPPER OIL PAN .

Mark the installed position of the connecting rod bearing cap for the cylinder for installing later. (Scheme 12)

Remove the connecting rod bearing cap.

Remove the piston and connecting rod upward.

Note. Warm the piston to approximately 60 °C (140 °F) if it is difficult to move the piston pin.

Remove the locking ring from the eye of the piston bolt.

Remove the piston pin using VW 222 A.

Install in reverse order, paying attention to the following

  1. Tightening specification, refer to «PISTONS AND CONNECTING ROD OVERVIEW»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe__pistons-and-connecting-rod-overview) .

Note. Replace bolts that are tightened to the specification.

Coat the contact surfaces on the bearing shells with oil.

Install the piston and piston ring compressor.

Installed position

  1. Piston (Scheme 11)
  2. Connecting rod (Scheme 13)

Install the connecting rod bearing cap according to the marking.

Install the upper oil pan. Refer to UPPER OIL PAN .

Installing cylinder head. Refer to CYLINDER HEAD, INSTALLING .

Scheme 33

Scheme 33: REMOVING

Remove the fan shroud. Refer to FAN SHROUD .

CAUTIONRisk of destroying due to reversed running direction on a used ribbed belt. Before removing the ribbed belt, marking the running direction with chalk or felt-tip pen for reinstallation later.

Pivot tensioning device in direction of -arrow- to relieve tension on ribbed belt.

Remove ribbed belt and release tensioning device.

Scheme 34

Scheme 34: INSTALLING

Install in reverse order, paying attention to the following

Route the ribbed belt -2- in the specified sequence over the ribbed belt pulley.

1 - Generator

3 - Idler roller

4 - Vibration damper

5 - Tensioning roller

Note. When installing the ribbed belt, make sure it is seated correctly on the pulleys.

Install the fan shroud. Refer to FAN SHROUD .

Start the engine and check the belt routing.

Scheme 35

Scheme 35: REMOVING

Remove ribbed belt. Refer to RIBBED BELT .

Remove the bolts -1 and 2-.

Remove the ribbed belt tensioner from the upper oil pan.

Install in reverse order, paying attention to the following

  1. Tightening specification, refer to «RIBBED BELT DRIVE OVERVIEW»(/audi/s5/i-2007-2011/remont/mechanical/#42l-crankshaft-cylinder-block-engine-codes-caua-coupe) .

Install the ribbed belt. Refer to RIBBED BELT .

Remove fan shroud. Refer to FAN SHROUD .

Loosen the vibration damper bolts -arrow- a few turns by counter-holding the open-end wrench on the generator ribbed belt pulley nut.

Remove ribbed belt. Refer to RIBBED BELT .

Remove the bolts -arrow- and the vibration damper.

Install in reverse order, paying attention to the following

  1. Tightening specification (Scheme 16)

Note. Replace bolts that are tightened to the specification. Clean the threaded holes with a thread tap. Install the bolts with locking compound

  1. The vibration damper can only be installed in one position. (Scheme 16)

Install the ribbed belt. Refer to RIBBED BELT .

Install fan shroud. Refer to FAN SHROUD .

SPECIAL TOOLS

Special tools and workshop equipment required

Scheme 36

Scheme 36: SPECIAL TOOLS

Scheme 37

Scheme 37

Scheme 38

Scheme 38

Scheme 39

Scheme 39

Scheme 40

Scheme 40

Scheme 41

Scheme 41

Scheme 42

Scheme 42

Scheme 43

Scheme 43

Scheme 44

Scheme 44

Scheme 45

Scheme 45

Scheme 46

Scheme 46
  1. Counter Hold Tool 10 - 201
  2. Sleeve 40 - 103
  3. Assembly Tool T10122
  4. Pulling Hook T20143/2
  5. Oil Seal Extractor T40019
  6. Assembling Device T40048
  7. Dial Gauge 0-10 mm VAS 6079
  8. Dial Gauge Holder VW 387
  9. Tube 31.5 mm Dia. VW 418 A
  10. Tube 28 mm Dia. 100 mm VW 421
  11. Pilot Drift VW 222 A
  12. Not illustrated
  13. Engine and Transmission Holder VAS 6095