Subframe Bushings, Replacing
Subframe bushings, replacing
Note:
^ 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 bushing, subframe must be removed
Pulling out bonded rubber bushing
- Saw or cut rubber shoulder off subframe bushing up to outer bushing.
Note:
^ If the paint on the surface of the subframe should be damaged, the surface should be protected against corrosion.
Pulling out rear bonded rubber bushing
Ensure 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 bushing
- Position installation device 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 degrees ±5 degrees
Only tension subframe in a vise using protective clamps!
Pulling in rear bonded rubber bushing
To press on bonded rubber bushing, use installation lubricant G 294 421 A1.
- Pull in bushing - A - until thrust piece -3372/1- is flush with upper edge of installation device Installation Device 3372.
- Remove Installation Device 3372 and segments 3372/2 upward.
Pulling in rear bonded rubber bushing
- Insert segments -3372/2- between bridge - 3351/4 - and subframe.
- Pull mounting in onto stop.
If paint on the surface of 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 tube - 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 paint on the surface of subframe should be damaged, the surface should be protected against corrosion.