It looks like it's the B2 piston. Am I correct in saying the part is around $150 and we're looking at 2-3 hours of labor?

That's about right. An experienced MB mechanic should be able to do it with the transmission in the car (as many of us have, though it is a tight squeeze) but I've heard many mechanics prefer to drop it for more room. What was the nature of the failure? Blown seal? Blown cover? Piston itself?

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TC
Current stable:
- 2004 Mazda RALLYWANKEL
- 2007 Saturn sky redline
- 2004 Explorer...under surgery.

Past: 135i, GTI, 300E, 300SD, 300SD, Stealth

Don;t know yet, but two knowledgable opinions say B2 probably failed due to age. The mechanic has a lift, so will probably drop the tranny to replace. The forum probably just saved my beloved Benz and saved me $2000. Thanks to all who replied.

You are welcome.

Keeping it on the road, with your smile behind the wheel.


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