Oil Pump: Service and Repair

11 41 000 - Removing and installing/replacing oil pump (M52TU/M54/M56)

Remove oil sump.





Caution!
Left-hand threads.
Unfasten nut.

Installation Note:
Tightening torque 11 41 4AZ 11 41 Oil Pump with Strainer and Drive.





Remove sprocket with chain.

Installation Note:
Align splines of chain wheel and oil pump shaft to each other.





Version 1
Oil pump integrated in oil scraper:
Release screws (1), remove oil pump with oil scraper.





Version 2
Oil pump and oil scraper - two parts:
Release screws and remove oil pump intake pipe.





Version 2
Oil pump and oil scraper - two parts:
Release screws and remove oil pump.





Installation Note:
Check dowel sleeves (1) for damage and correct installation position.





Installation Note:
Replace O-ring on intake pipe.





If necessary, remove control piston.
Press sleeve downwards with suitable drift.

Caution!
The sleeve for the control plunger is under spring pressure.

Remove circlip.





Installation Note:
1. Control plunger

2. Spring

3. Sleeve

4. O-ring (replace)

5. Circlip