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IMS data collection update - 132 cars (Page 3)
- Thread starter Alex
- Start date
Chris_in_the_UK
Estoril
- Joined
- 19 Mar 2014
- Messages
- 3,595
996lee said:
Cannot find the thread- any link?
EDIT - found it.
Did this ever get confirmed as a bearing failure - there was suggestions of a chain jump or shaft failure.
Either way it's bad news!.
Alex
Nordschleife
- Joined
- 6 Mar 2014
- Messages
- 22,172
Data collected so far for 102 cars (26th May 2016).
Still no 996 failures since July 2014. A couple of 997 failures in the last 6 months.
Here's a couple of bar charts showing which engines and models have sustained a failure:
Total number of failures - 5.88% (Not including the LN as a original failure)
of which 3.4 - 0% and 3.6 - 8%
of which all Anniversary, X51 & C4 - 0%, C2 - 8.7% and C4S - 9.5%
Still no 996 failures since July 2014. A couple of 997 failures in the last 6 months.
Here's a couple of bar charts showing which engines and models have sustained a failure:
Total number of failures - 5.88% (Not including the LN as a original failure)
of which 3.4 - 0% and 3.6 - 8%
of which all Anniversary, X51 & C4 - 0%, C2 - 8.7% and C4S - 9.5%
No problems showing with mine at the moment Alex, but the C4S statistics are seriously worrying!
Do you think this is a reflection of more replies, or more of the C4S's being Tiptronic or what?
Is there a percentage correlation between manuals vs Tips?
Not getting paranoid, promise!
Do you think this is a reflection of more replies, or more of the C4S's being Tiptronic or what?
Is there a percentage correlation between manuals vs Tips?
Not getting paranoid, promise!
Alex
Nordschleife
- Joined
- 6 Mar 2014
- Messages
- 22,172
A few of us came to the conclusion that the failures all happened around the time Porsche went to the 24k/2-year service intervals, and although this not being the culprit of the bearing failing (the culprit being the bearing itself not being borderline strong enough) may have played a major part in the failures. :dont know:
I don't think I have ever offered up the info on my car. 2004 996.2, 3.6 manual C2.
No documented failure or engine change. Up to 72k miles at the minute.
There is an invoice for a IMS replacement at 65k miles by Autofarm, using a part number 106-08.2IMSR6569. I'm not sure exactly what that is, the cost for the part on the invoice in £460.50 if that helps suss it out.
Oil changes:
17k
21k
32k
36k
52k
65k
72k
No documented failure or engine change. Up to 72k miles at the minute.
There is an invoice for a IMS replacement at 65k miles by Autofarm, using a part number 106-08.2IMSR6569. I'm not sure exactly what that is, the cost for the part on the invoice in £460.50 if that helps suss it out.
Oil changes:
17k
21k
32k
36k
52k
65k
72k
Alex
Nordschleife
- Joined
- 6 Mar 2014
- Messages
- 22,172
3.5 YEAR REVIEW
Data collected so far for 132 cars (1st December 2018).
Still no 996 failures since July 2014 apart from 1 member with a 3.6 who won't enter his data so I'm unable to include it in the results.
Here's a couple of bar charts showing which engines and models have sustained a failure:
Total number of failures - 4.5% (Not including the LN as a original failure)
of which 3.4 - 0% and 3.6 - 6.7%
of which all Anniversary, X51 & C4 - 0%, C2 - 5.9% and C4S - 9.1%
Data collected so far for 132 cars (1st December 2018).
Still no 996 failures since July 2014 apart from 1 member with a 3.6 who won't enter his data so I'm unable to include it in the results.
Here's a couple of bar charts showing which engines and models have sustained a failure:
Total number of failures - 4.5% (Not including the LN as a original failure)
of which 3.4 - 0% and 3.6 - 6.7%
of which all Anniversary, X51 & C4 - 0%, C2 - 5.9% and C4S - 9.1%
Ghianightmare
Montreal
- Joined
- 25 Apr 2017
- Messages
- 608
Hi Alex,
The PO of my car (VXBANDIT on this forum) suffered a dropped valve seat at 110k miles. Not sure if you want to include that as a non failing IMS... As it had a full rebuild I'm not expecting there to be an issue in my ownership if I look after it and change oil regularly.
The car had done a lot of motorway mileage in its life - about 50k in a specific 18 month period and was regularly serviced - which based on everything I read would mean the bearing was in an optimal environment.
Just some more info for you in case it is useful.
The PO of my car (VXBANDIT on this forum) suffered a dropped valve seat at 110k miles. Not sure if you want to include that as a non failing IMS... As it had a full rebuild I'm not expecting there to be an issue in my ownership if I look after it and change oil regularly.
The car had done a lot of motorway mileage in its life - about 50k in a specific 18 month period and was regularly serviced - which based on everything I read would mean the bearing was in an optimal environment.
Just some more info for you in case it is useful.
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