Timing Cover: Service and Repair

11 14 110 - Removing and installing lower timing case cover (M52/S52/M52TU/M54)

Remove VANOS adjustment unit Service and Repair.
Remove coolant thermostat Service and Repair.
Remove alternator drive belt and drive belt tensioner.





Brace pulley for water pump with drive belt and unfasten screws.





M52 / S52 only
Unfasten engine speed sensor.





Remove vibration damper. Service and Repair
Version where vibration damper and hub are two parts: Remove hub for vibration damper.
Remove oil sump.





Drive out dowel pins from timing case cover towards rear.
(Mandrel diameter less than 5 mm)





Unscrew timing case cover to cylinder head bolts.





Unfasten screws and remove timing case cover.





Important!
Check cylinder head gasket for damage; if necessary, remove cylinder head and replace cylinder head gasket.





Installation Note:
Clean sealing surfaces.
Drive alignment pins into timing case cover until they protrude approx. 2 to 3 mm.





Installation Note:
Secure new seals to timing case cover with a little grease.





Installation Note:
Sealing faces clean and free of seal debris.
Apply Drei Bond 1209 sealing compound (refer to BMW Parts Service) at following points:
- A bead at the transitions to the cylinder head gasket on the left and right.
- Thinly and evenly to the entire sealing face of the timing case cover to the cylinder head gasket.





Installation Note:
Install timing case cover, insert all screws and initially tighten to approx. 5 Nm.





Installation Note:
Drive in dowel pins from front until flush.





Installation Note:
Fully tighten all screws in alternate sequence.
Tightening torque, 11 14 1AZ 11 14 or 15 Case Covers.

Important!
Once all screws have been tightened down, retighten them in a second operation.





Insert screws, tighten screw connection for timing case cover to cylinder head.





Replace radial seal in lower timing case cover. Service and Repair
Assemble engine.