SEAT TRIM, WITHOUT HEIGHT ADJUSTMENT
Removing and installing on the left side of the vehicle is described here. Removing and installing on the right side is identical.
Removing
Using assembly tool 3399, reach behind a locking mechanism for the backrest adjusting wheel -1-.
Pry assembly tool 3399 outward -arrow A- and remove backrest adjusting wheel from seat.
Compress clamping pin -2- inward and remove expanding clip -3-.
Remove bolt -4- (3.5 Nm).
Remove trim -5- from seat frame.
Scheme 2
Installation
To install, perform the steps used for removal in reverse order.
SEAT TRIM BRACKET, WITHOUT HEIGHT ADJUSTMENT
Removing and installing on the left side of the vehicle is described here. Removing and installing on the right side is identical.
Removing
Remove trim of seat (without height adjuster). Refer to SEAT TRIM, WITHOUT HEIGHT ADJUSTMENT
Remove screws -1- and -2- (3.5 Nm) and remove bracket -3-.
Scheme 3
POWER FORWARD/BACK ADJUSTMENT UNIT
This removal and installation procedure describes the seat forward/back adjustment for the front left seat frame. The procedure is the same for the right front seat frame.
Removing
Mount the fixture for seat repair VAS 6136 on the engine and transmission holder VAS 6095.
Remove the front seat. Refer to FRONT SEAT
Secure the seat to the fixture for seat repair VAS 6136.
Remove the front seat belt latch. Refer to FRONT SEAT BELT LATCHES
Remove seat cap. Refer to COVER CAP
Remove electric seat front end trim. Refer to POWER SEAT FRONT SIDE TRIM
Remove electric seat trim. Refer to POWER SEAT TRIM
Remove electric seat trim bracket. Refer to POWER SEAT TRIM BRACKET
Remove front seat backrest. Refer to LEFT FRONT SEAT BACKREST
Remove cover and cushion from front seat backrests. Refer to FRONT SEAT CUSHION COVER AND UPHOLSTERY
Remove screws -1- and -2- on right side.
Remove screw -3- in rear area.
Note. Screw -3- in installation position points from inside toward outside.
Remove screw -4- in front area.
Remove seat pan -5- from longitudinal adjuster -6-.
Scheme 4
Installation
To install, perform the steps used for removal in reverse order.
POWER SEAT ANGLE ADJUSTMENT UNIT
This removal and installation procedure describes the tilt adjustment for the left front seat frame, which is the same process as for the right front seat frame.
Removing
Mount the fixture for seat repair VAS 6136 on the engine and transmission holder VAS 6095.
Remove the front seat. Refer to FRONT SEAT
Secure the seat to the fixture for seat repair VAS 6136.
Remove the front seat belt latch. Refer to FRONT SEAT BELT LATCHES
Remove seat cap. Refer to COVER CAP
Remove electric seat front end trim. Refer to POWER SEAT FRONT SIDE TRIM
Remove electric seat trim. Refer to POWER SEAT TRIM
Remove electric seat trim bracket. Refer to POWER SEAT TRIM BRACKET
Remove front seat backrest. Refer to LEFT FRONT SEAT BACKREST
Remove cover and cushion from front seat backrests. Refer to FRONT SEAT CUSHION COVER AND UPHOLSTERY
Disconnect wiring harness -1- from inclination adjuster -2-.
Remove the bolt -3-.
Remove the two sets of bolts -4- and -5-.
Remove inclination adjustment -2- from seat frame.
Scheme 5
Installation
To install, perform the steps used for removal in reverse order.
POWER SEAT HEIGHT ADJUSTMENT UNIT
This removal and installation procedure describes the height adjustment for the left front seat frame, which is the same process as for the right front seat frame.
Removing
Mount the fixture for seat repair VAS 6136 on the engine and transmission holder VAS 6095.
Remove the front seat. Refer to FRONT SEAT
Secure the seat to the fixture for seat repair VAS 6136.
Remove the front seat belt latch. Refer to FRONT SEAT BELT LATCHES
Remove seat cap. Refer to COVER CAP
Remove electric seat front end trim. Refer to POWER SEAT FRONT SIDE TRIM
Remove electric seat trim. Refer to POWER SEAT TRIM
Remove electric seat trim bracket POWER SEAT TRIM BRACKET
Remove front seat backrest. Refer to LEFT FRONT SEAT BACKREST
Remove cover and cushion from front seat backrests. Refer to FRONT SEAT CUSHION COVER AND UPHOLSTERY
Remove screw -1- in rear area of seat base.
Note. Screw -1- in installation position points from inside toward outside.
Disconnect wiring harness -2- from height adjuster -3-.
Remove the two bolts -4-.
Remove height adjuster -3- from mounts in seat base.
Scheme 6
Installation
To install, perform the steps used for removal in reverse order.
POWER SEAT BACKREST ADJUSTMENT MOTOR
If backrest adjustment motor is faulty, backrest frame must be replaced.
SEAT FORWARD AND BACKWARD ADJUSTMENT, SPORT SEAT R36
Note. Removing and installing the power seat applies to both the leather and cloth seat. The seat forward/backward adjustment drive is part of the seat adjustment unit and cannot be replaced by itself. The following describes removing and installing the seat forward/back adjustment on the left front seat frame. Removal and installation of the right seat longitudinal adjuster is performed in the same way.
Removing
Mount the fixture for seat repair VAS 6136 on the engine and transmission holder VAS 6095.
Remove the R36 sport seat. Refer to SPORT SEAT R36
Attach the sport seat to the fixture for seat repair VAS 6136.
Remove the front seat belt latch. Refer to FRONT SEAT BELT LATCHES
Remove seat cap. Refer to COVER CAP
Remove electric seat front end trim. Refer to POWER SEAT FRONT SIDE TRIM
Remove the R36 sport seat trim. Refer to SPORT SEAT TRIM, R36
Remove electric seat trim bracket. Refer to POWER SEAT TRIM BRACKET
Remove the R36 sport seat backrest. Refer to SPORT SEAT BACKREST, R36
Remove cover and upholstery from front R36 sport seat backrests. Refer to COVER AND CUSHION, R36 FRONT SPORT SEAT CUSHION
Scheme 7
Remove the screws -1- , -2- and -3- on the right side.
Note. The screws -3- and -4- illustrate the installation position from the inside toward the outside.
Remove the screw -4- from the inside.
Remove screw -5- in front area.
Scheme 8
Remove the seat pan -1- in -direction of arrow- from the seat forward/backward adjustment frame -3-.
Note. The drive for the inclination adjustment -2- and the drive for the height adjustment -4- can be replaced individually.
Installation
To install, perform the steps used for removal in reverse order.
Tighten the screws -1- , -2- , -4- and -5- to 27 Nm.
Tighten the screws -3- to 15 Nm.
SEAT INCLINATION ADJUSTMENT, SPORT SEAT R36
Note. Removing and installing the power seat applies to both the leather and cloth seat. Removal and installation of seat inclination adjuster is described for left backrest frame. Removal and installation of the right seat inclination adjuster is performed in the same way.
Removing
Mount the fixture for seat repair VAS 6136 on the engine and transmission holder VAS 6095.
Remove the R36 sport seat. Refer to SPORT SEAT R36
Attach the sport seat to the fixture for seat repair VAS 6136.
Scheme 9
Disconnect the electrical connector -3- from the seat inclination adjustment motor -4-.
Remove the bolt -2- (15 Nm).
Remove the four bolts -1- (8 Nm)
Remove the inclination adjustment drive -4- from the front seat frame.
Installation
To install, perform the steps used for removal in reverse order.
SPORT SEAT HEIGHT ADJUSTMENT, R36
Note. Removing and installing the power seat applies to both the leather and cloth seat. Removal and installation of seat height adjuster is described for left backrest frame. Removal and installation of the right seat height adjuster is performed in the same way.
Removing
Mount the fixture for seat repair VAS 6136 on the engine and transmission holder VAS 6095.
Remove the R36 sport seat. Refer to SPORT SEAT R36
Attach the sport seat to the fixture for seat repair VAS 6136.
Remove electric seat front end trim. Refer to POWER SEAT FRONT SIDE TRIM
Remove the R36 sport seat trim. Refer to SPORT SEAT TRIM, R36
Remove electric seat trim bracket. Refer to POWER SEAT TRIM BRACKET
Scheme 10
Remove the bolts in the back of the front seat frame -2- (27 Nm).
Note. Screw -2- in installation position points from inside toward outside.
Disconnect the connector -5- from the height adjustment drive -4-.
Remove the two bolts -1- (20 Nm).
Remove the height adjustment drive guide pins -3- from the seat frame mounts.
Remove the height adjustment drive -4- from the seat frame.
Installation
To install, perform the steps used for removal in reverse order.
Scheme 11
Note. Make sure to install the serrated washer -3- between the backrest frame -1- and the height adjustment drive -2-.
PNEUMATIC LUMBAR ADJUSTMENT PUMP, R36 LEATHER SPORT SEAT
Removing
Note. Removing applies only to the power leather sport seat. Removing the lumbar support pneumatic pump is described for the left front seat frame. Removing the lumbar support pneumatic pump for the right front seat frame is identical.
Mount the fixture for seat repair VAS 6136 on the engine and transmission holder VAS 6095.
Remove the R36 sport seat. Refer to SPORT SEAT R36
Attach the sport seat to the fixture for seat repair VAS 6136.
Remove seat cap. Refer to COVER CAP
Remove electric seat front end trim. Refer to POWER SEAT FRONT SIDE TRIM
Remove the R36 sport seat trim. Refer to SPORT SEAT TRIM, R36
Remove electric seat trim bracket. Refer to POWER SEAT TRIM BRACKET
Remove the R36 sport seat backrest. Refer to SPORT SEAT BACKREST, R36
Secure backrest on fixture for seat repair VAS 6136.
Scheme 12
Remove the backrest cover -arrows- and fold the left and right cover as well as the protective foil to the side.
Loosen the back part of the supply line -1- and fold it up.
Disconnect the supply lines -2- to both valve blocks for the lumbar support pneumatic.
Remove the lumbar support adjustment pump -3- from the retainer in the backrest frame.
Disconnect the lumbar support pump connector -5-.
Remove the lumbar support pneumatic pump -3- and supply line -4- from the backrest frame.
Installing
To install, perform the steps used for removal in reverse order.
PNEUMATIC LUMBAR ADJUSTMENT VALVE BLOCKS, R36 LEATHER SPORT SEAT
Removing
Note. Removing applies only to the power leather sport seat. Removing the lumbar support pneumatic valve blocks is described for the left front seat frame. Removing the lumbar support pneumatic valve blocks for the right front seat frame is identical.
Mount the fixture for seat repair VAS 6136 on the engine and transmission holder VAS 6095.
Remove the R36 sport seat. Refer to SPORT SEAT R36
Attach the sport seat to the fixture for seat repair VAS 6136.
Remove seat cap. Refer to COVER CAP
Remove electric seat front end trim. Refer to POWER SEAT FRONT SIDE TRIM
Remove the R36 sport seat trim. Refer to SPORT SEAT TRIM, R36
Remove electric seat trim bracket. Refer to POWER SEAT TRIM BRACKET
Remove the R36 sport seat backrest. Refer to SPORT SEAT BACKREST, R36
Secure backrest on fixture for seat repair VAS 6136.
Scheme 13
Remove the backrest cover and fold the left and right cover as well as the protective foil to the side. Refer to COVER AND CUSHION, BACKREST, R36 SPORT SEAT .
Disconnect the supply lines -9- to both valve blocks -7- and -8-.
Remove the lumbar support pneumatic valve blocks -7- and -8- from their Velcro connector and turn them toward the inside -arrows-.
Disconnect the supply lines -1- , -3- , -4- and -6- to both valve blocks.
Disconnect the electrical connectors -2- and -5-. Remove both valve blocks from the backrest frame.
Installing
To install, perform the steps used for removal in reverse order.
INCLINATION ADJUSTMENT DRIVE, R36 SPORT SEAT
Note. If the drive is faulty, then the backrest frame must be replaced.