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Eric
Eric, Automotive Repair Shop Manager
Category: Porsche
Satisfied Customers: 30241
Experience:  20+ yrs. experience as repair shop manager and technician.
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I just bought a 2004 996 and am reading about this IMS

Customer Question

I just bought a 2004 996 and am reading about this IMS nightmare and am wondering if my car had the IMS replaced already or if it is something I need to worry about? My car has 75,000 and is it true that with that many miles, it should be fine? The Carfax reveals that at 15,000 miles, the dealer replaced the clutch, the front crankshaft oil seal, and event he transmission. Maybe the IMS was replaced then as well?
JA: How many miles are on the clutch? Has it been slipping or sticking?
Customer: It is not slipping. Carfax records only show clutch was replaced at 15K miles. It seems to have bee dealer maintained. Plugs replaced at 70K, brake fluid replaced at 62K etc.
JA: What is the model of your '04 Porsche?
Customer: 996
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: I haven't tried anything so far and I would not be doing the work myself. Car seems to be running great. I was wondering if there is a way to know if I need to worry or not?
JA: Anything else you want the mechanic to know before I connect you?
Customer: No, I think that is all.
Submitted: 14 days ago.
Category: Porsche
Expert:  Eric replied 14 days ago.

Hi,

Normally the IMS bearing is replaced when the clutch is replaced as a preventative measure. The only way to know for sure is to get the repair invoice for when the clutch was replaced to see if the bearing is listed under the parts list.

Based upon it having 75K miles on it, I would say it has been replaced, but again, I cannot guarantee it.

I will say that even if it has been replaced, it is still subject to fail again. I advise to have the oil changed every 5000 miles and make sure to use 5w40 viscosity motor oils, preferably one that carries an API SJ-SL rating, unless in a severe weather climate, then use 0w40.

And go ahead and have it replaced every time the clutch needs replacing. This will prevent unexpected catastrophic ims bearing failure which can destroy the engine.

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Expert:  Eric replied 13 days ago.

I noticed we have not yet resolved your concern you asked about. I would sure appreciate it if you would reply so I can offer my skills and knowledge and repair guide access to help as best I can.
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Expert:  Eric replied 11 days ago.

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