Replacing Engine Support In Front Of Bulkhead, Left (M4 Coupe, M4 Convertible)
Observe procedure of REPAIR STAGE 3 .
Read contents of BODY, GENERAL .
For stripping and rigging operations, refer to surrounding text on KSD (FRU number 41 11 091).
Use only approved Spot-Welding Apparatus for repairs; See WORKSHOP EQUIPMENT (BMW AND MINI VEHICLES) .
Place vehicle on straightening bench.
Following new body parts are required (applicable BMW Parts Catalog):
- (1) Engine support, outer left
- (2) Engine support, inner left
Removal
Open welded connections in areas (1).
Open welded connections in areas (1).
Roughly mark severance cut (1) as pictured and cut.
Open welded connections in area (2) and remove engine support (3).
Open welded connections in areas (1) by grinding and remove residual section of engine support (2).
New part preparation
Open welded connections (1) and remove component (2) which is not required.
Release welded connections (1) and remove adapter plate (2).
Set bore holes for welding the reinforcements (2) in areas (1).
Refer to series part for number and position and transfer to new part.
Adjust new parts to fit with alignment bracket or universal mounting.
All three panels must be welded in these areas (1) and (2)!
Prepare new parts and vehicle accordingly.
Prepare new parts in all joint areas for joining by welding.
Remove new parts and deburr bore holes.
Installation
Install the outer engine support section including alignment bracket or universal fixture and weld in these areas (1) and (2).
Install engine support inner part. Weld new part.