TECHNICAL BULLETIN--BMW E46 models--Rear Sub-frame 4-24-12

[Greg G.]

TECHNICAL BULLETIN--BMW E46 models--Rear Sub-frame 4-24-12

All BMW E46 models in the 1999–2006 range

 

Allowance of repair and/or prevention of rear sub-frame connection point failures as noted in the settlement of the class action lawsuit settled 8-10-09 with BMW. The following modifications are permitted without a Modification Point or Modification Factor assessment, and are not intended as performance enhancing modifications:

 

The material used cannot exceed 0.110” (inches) in thickness. Plates may be trimmed to fit the area being repaired or reinforced. Any vertical offset of the sub-frame or suspension caused by the use of these plates is legal. Holes are allowed for the existing fasteners and for additional holes for rosette welds. Existing cracks or damage may be welded before the repair.

1. One plate (A) not to exceed 206MM x 108mm in size. Two bends are allowed to contour to chassis but must be included in overall size.

2. One plate (B) not to exceed 163mm x 81mm in size. One bend allowed to contour to chassis but must be included in overall size.

3. Two plates © not to exceed 134mm x 73mm in size, (one plate per side).

4. Two plates (D) not to exceed 66mm x 42mm in size, (one plate per side).

5. Two plates (E) not to exceed 82mm x 92mm in size, (one plate per side).

 

Plates (A), (B), ©, and (D), must be placed between the sub-frame and differential carrier and can be attached to the underbody by welding or bonding. Plate (E) can only be used in the trunk area to cover the access hole made to weld the top of the sub-frame connections, and can be attached by welding or bonding.