Securing Engine In Installation Position
11 00 670 Securing engine in installation position (N52)Special tools required:
Warning!
Risk of injury!
Observe following instructions relating to special tool:
1. Prior to each use, check the special tools for defects, modifications and operational reliability.
2. Damaged/modified special tools must not be used!
3. No changes or modifications may be made to the special tools!
4. Keep special tools dry, clean and free of grease.
Important!
Prior to lifting the engine, check the lifting lugs for damage (cracks) and secure seating.
Note:
- Numbering system for special tools has been re-encoded.
Necessary preliminary tasks:
- Secure engine compartment lid in service position
- Remove intake filter housing
Assemble transverse member 00 6 000 with special tools:
- 00 6 051 (profile strips)
- 00 6 070 (supports)
- 00 6 052 (supports)
- 00 6 031 (connections) complete.
Note:
Use towing hook (72 15 8 108 670).
Important!
Avoid a change of engine position in the transverse or longitudinal direction.
Always make sure there is sufficient clearance between the engine (or its attachment parts) and the body.
Important!
For N51, N52, N52K: 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 color 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).
Release front screws (1) on acoustic cover (2).
Tightening torque for N51: 11 12 6AZ.
Tightening torque for N52K: 11 12 6AZ.
Tightening torque for N54: 11 12 7AZ.
Raise acoustic cover (1) slightly.
Screw in towing hook (2) and tighten down to approx. 30 Nm.
Unscrew bolt (1), then loosen screw (2).
Fold up headlight bracket (3).
Screw (1):
Tightening torque 63 12 12AZ.
Screw (2):
Tightening torque: 63 12 3AZ.
Important!
Risk of damage!
Fit transverse member 00 6 000 with a 2nd person helping.
Place supports in front in the area of front panel attachment and in the rear on the fasteners of the side panels.
Bolt connections of transverse member 00 6 001 must point to windscreen.
Adapt bevel of special tool 00 6 052 to inclination of side panels.
Special tool 00 6 070 consists of a left and right support.
Secure chain with coat hook 00 6 080 to spindle 00 6 002 and align centrally over towing hook.
Attach special tool to towing hook.
Warning!
Risk of injury!
Tighten down all adjusting screws and nuts on transverse member 00 6 000.
Unscrew nuts (1).
Raise engine approx. 10 mm with transverse member.
Installation:
Replace self-locking nuts.
Tightening torque 22 11 2AZ.
Check vacuum lines of engine mounts for correct position and connection.
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