Cuda911

IMSB and RMS. Both looked perfect, at 100K on the car, but I upgraded anyway.

alpine003

^^^ isn't that procedure reversed? most pull the tranny instead of the motor...

Cuda911

Ah, tranny was pulled too! Had a laundry list of items I wanted to replace for PM.

bigmsm

2001 C4, 70k miles; no issues. Thinking about proactive replace using a new system that direct injects oil to IMS to keep lubricated. Waiting to see cost. http://tinyurl.com/lmuqb5d

ArniO

2003 C4, 60k miles; No issues. Replaced with LN bearing whilst reclutching. Old bearing was still perfect.

MLANDINGIN177

2000 C2, 98K no IMS issues

CrossT

No issues. 1999 mk1. 65k on motor

sjg1138

No Issues. 67k miles on '99 996. Needed a clutch so had a LNE IMS solution and a new RMS put in, just in case!

aviography

Your car should be dual-row bearing, which is not a candidate for the IMS Solution, which is only for the single-row 996.2 and 997 cars.

KrazyK

To you guys posting that your old bearing "looked perfect". Are you saying the seals are intact and oil was not in the bearing,,,,, or the seals are intact but failed because the bearing and tube had oil in them? Just trying to clarify because my bearing looked fine but bearing and tube were full of oil because the seals had obviously failed. If failed seals are added in the mix the failure rate just jumped from 9+% to about 50%, probably more.

5CHN3LL

1999 C4, 58K miles, replaced dual-row IMSB with LN bearing as preventive maintenance during clutch replacement. Other than being full of stinky intermediate shaft oil, the OEM bearing appeared healthy. Both seals were in excellent condition, and the bearing had no play.

Grey Guy

2002 C4S, manual, 127.5k miles. No issues. I've kept up with the recommended service intervals.

gsessler

2002 C4 Cab, manual, owned since new, 58k miles, RMS replaced 14k, no IMS issues

dgjks6

1999 c4 cab 6 speed

Went to have the IMS changed at 38,000 and found it had almost failed. Metal shaving throughout the engine. Still deciding on rebuild or try to flush it out.

deoslo

I had a new 2009 factory replacement put in my 2002 C2, after much research no one could tell me if Porsche fixed the problem in the new engine so I finally decided to go ahead and have it replaced. when my mechanic went in to do the retrofit he found that it couldn't be done and the bearing had been beefed up and should be good to go. anyone have any thoughts on this?
still confused!