Removing and Installing Engine

11 00 050 - Removing and installing engine (N52K)





Special tools required:
- 11 0 020
- 11 7 310
- 13 5 161
- 13 5 162





Important!
Aluminium-magnesium materials.

No steel screws/bolts may be used due to the threat of electrochemical corrosion.

A magnesium crankcase requires aluminium screws/bolts exclusively.

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:
- Disconnect battery negative lead 61 20 900 Disconnecting and Connecting Battery Negative Lead
- Move engine hood/bonnet Procedures into service position
- Remove intake filter housing Service and Repair
- Remove fan cowl Service and Repair with electric fan
- Remove radiator Service and Repair
- Remove condenser Service and Repair
- Detach all coolant hoses from engine
- Detach vacuum line from brake booster
- Release engine wiring harness from electronics box and lay to one side
- Remove exhaust system Service and Repair
- Remove transmission 23 00 017 Removing and Installing Transmission (GS6-17BG)
- Release steering spindle from steering gear (do not remove) 32 31 070 Removing and Installing/Replacing Steering Spindle Lower Section
- Release grounding strap on left engine support arm





Release nut (1) and disconnect battery positive lead (2) from terminal.





Release screw (1) and remove A/C line (2) from A/C compressor.

Installation Note:
Replace seals.

Tightening torque 64 52 1AZ [1][2]Compressor HVAC.





Disconnect fuel lines (1).

Seal off fuel lines with special tools 13 5 161 and 13 5 162.

Disconnect tank vent line (2).





Unlock crankcase breather hose (2) and detach from cylinder head cover (1).





Release nut (1) on engine mount on left and right.

Installation Note:
Replace self-locking nut.

Tightening torque 22 11 2AZ Specifications.





Screw towing eye (1) into cylinder head.

Tightening torque 11 12 9AZ .

Suspend special tool 11 0 020 from engine crane.

Suspend special tool 11 0 020 from the designated mounting eyelets (2) only.

Lift engine out with engine crane.

Note:
For purposes of clarity, engine removed and not showing intake manifold.





Installation Note:
Secure special tool (1) 11 7 310 on steering gear.

Remove again before securing transmission carrier.





Assemble engine.

Check function of DME.