Preparation Work, Installing a Steel Subframe, AWD

Preparation Work, Installing a Steel Subframe, AWD

Only steel subframes are available as a replacement part.

When replacing an aluminum subframe, a steel subframe must be installed.

Before starting, look the identification and transmission code letters for the rear axle transmission and compare it in the list.

The preparation work on the subframe must be perform only on the rear axle transmissions listed below.

• The identification - arrow - on the bottom of the final drive tells which final drive is installed.





Example on a 02D Final Drive

- Arrow A - final drive part number





- arrow B - final drive code letters

- arrow C - final drive build date

Example:





Code Letters

• The preparation work on the subframes must performed only the rear final drives with the code letters listed here.





Preparation Work

Special tools, testers and auxiliary items required

• Angle grinder, commercially available

- Disconnect the bracket - 2 - at the separating point - 1 - with the angle grinder.





CAUTION!
• The separating point - 1 - is located on the end of the upper elbow. It may be in the welding area.

• Do not damage the front transverse pipe.

- Remove any burrs on the cutting edge and spray with zinc spray (D 007 500 A2) to prevent corrosion.