Removing and Installing

Remove Automatic Transmission (A4S 310R)

Note: After completion of work, check transmission fluid level.

Caution:
Use only the approved transmission fluid in this automatic transmission.
Failure to comply with this requirement will result in serious damage to the automatic transmission!

Disconnect battery.

Release nuts on ignition coil mount.

Remove ignition coil (1) from fixture (2).

Remove engine underguard (1).

Release screws.

Installation:
Tightening torque for front end reinforcement plate on front axle carrier/engine carrier calls for:
- Replacement of screws (with new) first tighten down rear screws with a jointing torque of 59 Nm, then apply additional torque angle of 90 degrees, plus up to an additional 30 degrees twist.

Remove front end reinforcement.

Remove complete exhaust system.

Remove heat shield (1).

Grip clamping sleeve (1).

Release nut (2).

Adjust selector lever.

Grip cable (1) at hexagon (2).

Release nut (3).

Pull cable (1) out of holder.

Support transmission with special tool 24 5 300 consisting of special tools 24 5 301 / 24 5 302 and 00 2 030.

Release screws.

Remove cross-member (1).

Release screws.

Remove exhaust suspension (1).

Release screws.

Installation:
Replace self-locking nuts.

Grip propeller shaft.

Release nuts.

Bend propeller shaft downwards at center bearing (1).

Detach propeller shaft from transmission output flange and tie back to side on vehicle underbody.

Installation:
Pull off cover tape from butylene tape on both sides.
Stick butylene tape (1) to outside of center bearing (2).

Caution: Remove butylene tape already attached to center bearing. Clean adhesive area on center bearing and on body. Then coat adhesive area on body with mineral oil. This coating with oil is necessary to facilitate insertion of the sticky butylene tape in the propeller shaft tunnel. This prevents the butylene tape from being deformed.

Installation:
Press center bearing (2) into transmission tunnel.

Lower transmission until cylinder head touches bulkhead. Suspend special tool 11 8 022 from left and right control arms.

Caution: Position special tool so that engine oil sump is securely resting on special tool.

Tighten down knurled screws until special tool rests against engine oil sump.

Turn fastener (1) to left.

Disconnect plug (2).

Unclip cable from transmission housing.

Installation:
Attach plug (2) so that marking lines are flush with respect to each other.

Detach cable plug (1) from speed sensor.

Unclip cable from transmission housing.

Unlock and detach cable plug (1) from position switch.

Unclip cable from transmission housing.

Release oil cooler line clamp on crankcase and oil sump.

Release screw connection on oil cooler line.

Installation:
Replace sealing ring (1).

Release screw connection on oil cooler line at rear.

Installation:
Replace seal.

Remove cover.

Release retaining screws on torque converter (3 screws) with special tool 24 1 110.
Tightening torque, 45 Nm.

Installation:
Use only original screws.

Protect torque converter from slipping out.
To do so, insert special tools 24 4 131 and 24 4 133 in opening in transmission housing.

Clamp torque converter.

Release screws.

A4S 310 R

Transmission to Engine Hex Head Bolts
M8 24 Nm
M10 45 Nm
M12 82 Nm
Torx Bolts
M8 21 Nm
M10 42 Nm
M12 72 Nm
Reinforcement to transmission
M8 22 Nm

Pull off transmission from engine towards rear and lower it.

Installation:
Pay attention to adapter sleeves (1 and 2).
If necessary, withdraw adapter sleeves from transmission housing and install new adapter sleeves in engine block.

Installation:
The sheet metal flywheel is equipped with three recesses for the torque converter retaining lugs.
When joining together engine and transmission, the three retaining lugs on the torque converter must be aligned with the three recesses in the sheet metal flywheel.
Failure to comply with this requirement leads to secondary damage on the automatic transmission.
The torque converter or engine is not able to spin and would cause damage.

Installation:
Bore on driver must point to center of aperture in cover plate.

Installation:
Twist torque converter on transmission until bores on lugs point to center of bore on flywheel.

Screw special tool 24 2 300 into lug.

Installation:
Raise automatic transmission until bore on driver is reached.
Carefully insert transmission into bore on driver with special tool 24 2 300.
Flange transmission housing to engine.
Remove special tool 24 2 300 from lug towards front.