Oil Pan: Service and Repair

11 13 000 - Removing and installing, sealing or replacing oil sump (N54)





Important!
When working on the engine oil, coolant or fuel circuit, you must protect the alternator against contamination.
Risk of damage!
Cover alternator with suitable materials.
Failure to comply with this procedure may result in an alternator malfunction.





Important!
Aluminium screws/bolts must be replaced each time they are released.
Aluminium screws/bolts are permitted with and without
colour coding (blue).
For reliable identification:
Aluminium screws/bolts are not magnetic.
Jointing torque and angle of rotation must be observed without fail (risk of damage).





Necessary preliminary tasks:
- Remove engine underbody protection
- Secure engine in installation position Securing Engine In Installation Position
- Lower front axle 31 11 506 Lowering/Raising Front Axle Support
- Release power steering pump 32 41 060 Removing and Installing or Replacing Hydraulic Steering Vane Pump and place to one side
Observe torque specification without fail during installation.
- Drain and add engine oil Engine Oil Service





Note:
On vehicles with option SA205 (automatic transmission), it is necessary to remove the transmission oil cooler lines from the oil sump.





Release bolts (3) on transmission.
Tightening torque 11 13 6AZ [1][2]Oil Pan, Engine.
Detach return hose (2).

Important!
Bolts of oil sump have different lengths.
Observe different tightening torques.

Release bolts along line (1).

Tightening torque 11 13 2 and 3AZ [1][2]Oil Pan, Engine.

Installation Note:
Replace aluminium screws.

If necessary, release nuts (4). Remove oil level sensor.

Tightening torque 11 13 8AZ [1][2]Oil Pan, Engine.

Installation Note:
Replace sealing ring.

Important!
There must be no adhesive residues in the lower crankcase retaining threads.
Clean retaining threads and sealing faces.

Installation Note:
Replace all seals.





Assemble engine.