996-997 wet-sump engine reliability: enter your stats here!

996-997 wet-sump engine reliability: enter your stats here!

Author
Discussion

wadfa

4 posts

250 months

Wednesday 27th June 2007
quotequote all
2002 996 C2 - 32,000 miles, no engine or RMS problems to date....

and for the record, 1999 986 2.7 - 78,000 miles, no engine or RMS problems either.

Keep up the good work!

wadfa

LeeME3

1,502 posts

227 months

Wednesday 27th June 2007
quotequote all
1999 C4 Tip, 67000 miles of which i did 5000, no failures of anything (unless you count a knackered air con pipe caused by some over enthusiastic bumping up a kerb!)

...and a 986 before that (woth including Boxsters to increase the sample size?), owne from new to 20000 miles, again no failures

Edited by LeeME3 on Wednesday 27th June 16:15

widebody

27 posts

215 months

Wednesday 27th June 2007
quotequote all
2004 Model Year C4S. 17,000 miles no problems. Have not even had to add a drop of oil in the last 12 months smile

italiansummer

1 posts

220 months

Wednesday 27th June 2007
quotequote all
99 996 Engine failure 86,000m (when I bought the car). No idea about RMS. Prior to that 968 for 5 yrs to 145,000m with no problems.

Ballcock

3,855 posts

220 months

Monday 2nd July 2007
quotequote all
  • bumpidy bump bump bump*
Hey Toni , You keepin scores any more??

TheMonster

100 posts

230 months

Monday 2nd July 2007
quotequote all
1998 c2

bought at 56k, engine failure at about 70k. also had rms once.

and a new gearbox, but that's another story...

tonikaram

Original Poster:

324 posts

211 months

Monday 2nd July 2007
quotequote all
Ballcock said:
*bumpidy bump bump bump*
Hey Toni , You keepin scores any more??
As requested smile:

1 failure, No RMS, 77Km, 3.4
1 failure, 3 RMS, 58Km, 3.6
1 failure, No RMS, 16Km, 3.4
1 failure, No RMS, 41Km, 3.6
1 failure, 1 RMS, 46Km, 3.6
1 failure, no RMS, 138Km, 3.4
1 failure, 1 RMS, 112Km, 3.4
No failure, 1 RMS
No failure, 1 RMS
No failure, 1 RMS
No failure, 1 RMS, 102Km, 3.4
No failure, 1 RMS, 42Km, 3.4
No failure, 1 RMS, 48Km, 3.6
No failure, 1 RMS, 90Km, 3.4
No failure, 3 RMS, 40Km, 3.6
no failure, 1 RMS, 88Km, 3.6
no failure, 1 RMS, 3.6
no failure, 2 RMS, 3.6
no failure, no RMS, 3.4
no failure, no RMS
no failure, no RMS, 18km, 3.6
no failure, 1 RMS, 99Km, 3.4
no failure, no RMS, 8Km, 3.6
no failure, 1 RMS, 29Km, 3.6
no failure, 1 RMS, 64km, 3.4
no failure, no RMS, 40Km, 3.6
no failure, no RMS, 48Km, 3.4
no failure, no RMS, 3.4
no failure, no RMS, 32km, 3.4
no failure, 2 RMS, 56Km, 3.6
no failure, 1 RMS, 77Km, 3.6
no failure, no RMS, 88Km, 3.4
no failure, no RMS, 30Km, 3.4
no failure, 1 RMS, 48km, 3.4
no failure, no RMS, 38Km, 3.6
no failure, no RMS, 106Km, 3.4
no failure, no RMS, 152Km, 3.4
no failure, 3 RMS, 72Km, 3.6
no failure, no RMS, 51Km, 3.6
no failure, no RMS, 107Km, 3.4
no failure, no RMS, 27Km, 3.6
no failure, 1 RMS, 43km, 3.6



Out of a total of 42 996's:
- 16.6%, or 7 cases, have had engine failures at an average of 70,000Km
- 52%, or 22 cases, have had RMS. When you have it, you get it on an average of 1.4 times.
From those that specified the engine, 19 3.4s and 19 3.6s participated so far in the survey.
- 38% or 16 cases had none of these two problems, with an average of 57,000Km (9 3.4s average 80,000Km, and 6 3.6s average 30,000Km)


The rate of engine failure is decreasing, although not spectacularly. Same for RMS.

Kay


Edited by tonikaram on Monday 2nd July 10:12

Ballcock

3,855 posts

220 months

Monday 2nd July 2007
quotequote all
:cheers:

.. Interesting to note that there's nearly as many 3.6 as 3.4 failures.
I know there's a general perception that the 'facelifted' cars have more reliable engines , but I was told by an inside source a few months ago that the failures (when they did happen) were fairly even across the board.

I still feel the only weakness of this thread is that peeps will be more interested in posting if they've had an engine failure... The longer we can keep the thread alive the lower the failure rates will go.

Dazren , have you considered sticking the topic for a month or so??

tonikaram

Original Poster:

324 posts

211 months

Monday 2nd July 2007
quotequote all
Ballcock said:
:cheers:
.. Interesting to note that there's nearly as many 3.6 as 3.4 failures.
I know there's a general perception that the 'facelifted' cars have more reliable engines , but I was told by an inside source a few months ago that the failures (when they did happen) were fairly even across the board.
I thought the same. A Porsche mechanic at the dealership here strongly believed that 2002+ models are of better quality mechanically, but the stats here don't really show that. Same numbers although these are 3 to 4 years younger.



Ballcock said:
The longer we can keep the thread alive the lower the failure rates will go.
The failure rate was actually 14.6% when I posted smile, but meanwhile TheMonster entered his data prompting me to edit my post back to 16.6%..

Kay



Edited by tonikaram on Monday 2nd July 10:29

Ballcock

3,855 posts

220 months

Monday 2nd July 2007
quotequote all
tonikaram said:
A Porsche mechanic at the dealership here strongly believed that 2002+ models are of better quality mechanically, but the stats here don't really show that.
This may be a little cynical of me but the lads to talk to about failure rates are the indies , they don't have an axe to grind. OPC's may stop talking up the face lifters when they don't have them on their forecourts any more ... Then it'll be a case of ' the 997 has the much more reliable engine ' , even though it's been taken straight out of the 3.6 996...

Cynical mode off......

tonikaram

Original Poster:

324 posts

211 months

Monday 2nd July 2007
quotequote all
Ballcock said:
tonikaram said:
A Porsche mechanic at the dealership here strongly believed that 2002+ models are of better quality mechanically, but the stats here don't really show that.
This may be a little cynical of me but the lads to talk to about failure rates are the indies , they don't have an axe to grind. OPC's may stop talking up the face lifters when they don't have them on their forecourts any more ... Then it'll be a case of ' the 997 has the much more reliable engine ' , even though it's been taken straight out of the 3.6 996...

Cynical mode off......
Good point, may as well be right on actually

Kay

fulham911club

2,046 posts

243 months

Monday 2nd July 2007
quotequote all
2003 C2 owned from new. Just had RMS fixed (noticed after service in May). Got goodwill payment from Porsche (didn't even need to ask for it) and all it cost me was £80. Other than a flat battery (from 4 weeks of non-use) hasn't cost me a penny in repairs.

tonikaram

Original Poster:

324 posts

211 months

Monday 2nd July 2007
quotequote all
fulham911club said:
2003 C2 owned from new. Just had RMS fixed (noticed after service in May). Got goodwill payment from Porsche (didn't even need to ask for it) and all it cost me was £80. Other than a flat battery (from 4 weeks of non-use) hasn't cost me a penny in repairs.
fulham, what is the mileage at which the RMS was done?

Kay

bcnrml

2,107 posts

211 months

Monday 2nd July 2007
quotequote all
tonikaram said:
Ballcock said:
:cheers:
.. Interesting to note that there's nearly as many 3.6 as 3.4 failures.
I know there's a general perception that the 'facelifted' cars have more reliable engines , but I was told by an inside source a few months ago that the failures (when they did happen) were fairly even across the board.
I thought the same. A Porsche mechanic at the dealership here strongly believed that 2002+ models are of better quality mechanically, but the stats here don't really show that. Same numbers although these are 3 to 4 years younger.



Ballcock said:
The longer we can keep the thread alive the lower the failure rates will go.
The failure rate was actually 14.6% when I posted smile, but meanwhile TheMonster entered his data prompting me to edit my post back to 16.6%..

Kay



Edited by tonikaram on Monday 2nd July 10:29
Well, IIRC, there is at least one 2004 C4S with an engine failure, posted on this forum, which has not been added to this thread. I haven't added it because I don't want to encourage any more comments further denigrating the methodology behind the thread.

Like you both, I've heard the problems have not gone away, but I'm not sure any Indies will be prepared to put their names to stats of this nature and then have them posted on the forum. Let's see how this develops and hope people continue to post!

fulham911club

2,046 posts

243 months

Monday 2nd July 2007
quotequote all
tonikaram said:
fulham911club said:
2003 C2 owned from new. Just had RMS fixed (noticed after service in May). Got goodwill payment from Porsche (didn't even need to ask for it) and all it cost me was £80. Other than a flat battery (from 4 weeks of non-use) hasn't cost me a penny in repairs.
fulham, what is the mileage at which the RMS was done?

Kay
15k

Ballcock

3,855 posts

220 months

Monday 2nd July 2007
quotequote all
FINALLY!!...

Thanks Dazman..thumbup

Let the serious posting begin .. boxedin ya lazy shower o' shoites!!

Dunit

637 posts

206 months

Monday 2nd July 2007
quotequote all
I have just sold my 2000 986 Boxster 3.2 S with 66k on it.
Looking back at the service sheets it had a RMS replaced at 39k.
At 50k It had a Cracked Cylinder head replaced as a result of a holed radiator. Still on same clutch when i sold it.

Jessica_Wabbit

168 posts

205 months

Monday 2nd July 2007
quotequote all
Here you go:

1999 996 RMS go at +/- 11,000miles
2003 996 RMS go at +/-4,000miles
2003 996 no probs but covered less than 1,000miles!

tracer.smart

649 posts

212 months

Tuesday 3rd July 2007
quotequote all
And my contribution:

996 C2, yr2000 (3.4), original engine, replaced clutch at 52k, and RMS with it though it hadn't failed.

Car is going strong and looks fresh - still impresses me with its ability to take everything in its stride - from snow covered roads in Chamonix, muddy fields at Le Mans, smoking tyres on the 'Ring, Munich to Basel at a steady 150mph, and simply getting me around the shitty, it has never missed a beat.

Thorny

1,076 posts

211 months

Wednesday 4th July 2007
quotequote all
Mine too (although not my car, but a colleague's) 2005 987 Boxster S - terminal engine failure at c. 10k

The OPC mentioned something about an intermediary bearing and the engine having no compression

Edited by Thorny on Wednesday 4th July 10:15