Operation CHARM: Car repair manuals for everyone.

Subframe Mount, Replacing






Subframe Mount, Replacing

Various subframe versions are installed.

Subframe with bonded rubber bushings in subframe/body mounting points (all vehicles except convertible). Bonded rubber bushings cannot be replaced.

Subframe without bonded rubber bushings in subframe/body mounting points, rather with welded steel bushings (convertible only). Steel bushings cannot be replaced, replace subframe if damaged.

Special tools, testers and auxiliary items required

Assembly tool (3291)

Puller (3351/1)

Puller (3351/4)

Installation device (3372)

Installation device (3372/1)

Installation device (3372/2)

Thrust pad (30 - 205)

To replace subframe mount, subframe must be removed. Refer to => [ Subframe ] Service and Repair

Pulling out bonded rubber bushing





- Saw or cut rubber shoulder off subframe mount up to outer mount bushing.

If the paint on the surface of the subframe should be damaged, the surface should be protected against corrosion.

Pulling out rear bonded rubber mounting





Make sure that Installation Device (3372) is seated correctly and cannot tilt.

Pulling out bonded rubber bushing





All bonded rubber bushings on subframe are pulled out using same special tool.

Preparing to pull-in subframe mounting





- Position Installation Device (3372) and insert segments 3372/2.

Bonded rubber bushing, aligning





The bonded rubber bushings must be aligned with a long rectangular tube or straightedge.

A = 90° ± 5°

Only tension sub-frame in a vise using protective clamps!

Pulling in rear bonded rubber mounting

To press on bonded rubber bushing, use installation lubricant G 294 421 A1.

- Pull in mount - A - until thrust piece 3372/1 is flush with upper edge of Installation Device (3372).





- Remove Installation Device (3372) and segments 3372/2 upward.

Pulling in rear bonded rubber mounting





- Insert segments 3372/2 between bridge 3351/4 and subframe.

- Pull mounting in onto stop.

If the paint on the surface of the subframe should be damaged, the surface should be protected against corrosion.

Pulling in front bonded rubber bushing





To press on bonded rubber bushing, use installation lubricant G 294 421 A1.

- Insert segments 3372/2 in Installation Device ( 3372).

- Pull in mount - A - until thrust piece 3372/1 is flush with upper edge of Installation Device (3372).

Pulling in front bonded rubber bushing

- Raise Installation Device (3372) and remove segments 3372/2.





- Replace bridge 3351/41 with thrust piece 3351/1 and then push mounting in onto stop.

If the paint on the surface of the subframe should be damaged, the surface should be protected against corrosion.