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Citroen C6 MOT failure rate statistics.

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C6Dave   
Sun May 13 2012, 12:46pm

Joined: Oct 01 2009
Member No: #1
Location: Northumberland
Following on from a FOI request Vosa have released information on all cars but 'Honest John' has put them into readable format.

The C6 actually does well and the stats page is here: - Click Here -

OK it's early days still but here is a snapshot of where early cars are failing and it does highlight the suspension ball joint issues that owners of early cars have had:




Now for more details:

2006 Cars



2007 Cars



2008 Cars

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1 User said Thank You to C6Dave for this Post :
 Rileycat (10 August 2012)
pclark   
Mon May 14 2012, 08:11am
Joined: Oct 08 2009
Member No: #3
Location: North Yorkshire
Interesting statistics Dave. One odd thing I noticed was that 2.1% of 2006 C6's fail on 'shock absorbers' which is very strange as the C6 doesn't have 'shock absorbers' in the normal sense. The damping is done by valves between the suspension hydraulic cylinders and spheres. Maybe the garages are recording faulty suspension cylinders as 'shock absorbers'.
C6Dave   
Mon May 14 2012, 10:15am

Joined: Oct 01 2009
Member No: #1
Location: Northumberland
Or leaking suspension legs?

Hard to say as your relying on someone choosing the right box to tick

I mean 'Fluid Suspension' failure 299 times worse than other 2007 cars. Well it would be as there's not many others built that year have it.........
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ciao_chao   
Mon May 14 2012, 12:38pm
Joined: Jun 15 2011
Member No: #518
Location: Buckinghamshire
Yes, I would say statistics here can be misleading because nobody else does hydraulic.
C6Dave   
Mon May 14 2012, 01:09pm

Joined: Oct 01 2009
Member No: #1
Location: Northumberland
ciao_chao wrote ...

Yes, I would say statistics here can be misleading because nobody else does hydraulic.

Depends if they lump in C5's and C4 Picasso's with pneumatic suspension by ticking the wrong box......
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travlician   
Tue May 15 2012, 12:16am
Joined: Jan 22 2011
Member No: #350
Location: Paradera
Lexus is also using a hydraulic system for suspension but not sure if that's marketed in europe (using a central accumulator in stead of spheres on top of the suspension cylinders). Don't know if Rolls Royce is still using hydraulics for rear suspension as they did in the past (and as we all know, RR never fails...)
drummond   
Tue May 15 2012, 09:16am
Joined: Sep 20 2010
Member No: #238
Location: Aldeburgh
My 1967 DS passed first time
C6Dave   
Tue May 15 2012, 09:24am

Joined: Oct 01 2009
Member No: #1
Location: Northumberland
Wouldn't expect anything else

Cars of that age do tend to be loved and cared for
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James   
Tue May 15 2012, 02:03pm
Joined: Mar 03 2012
Member No: #817
Location: Somewhere in the south of England
C6Dave wrote ...

Or leaking suspension legs?

Hard to say as your relying on someone choosing the right box to tick

I mean 'Fluid Suspension' failure 299 times worse than other 2007 cars. Well it would be as there's not many others built that year have it.........

Since it goes down to 0.3% that implies a sample of 300 cars 2.7% fail or 8 or 9 cars in 300. 299 times worse suggest only 8 or 9 cars in 90,000 fail or they have a box for a failure which only happens once in every 10,000 tests.

And the 2008 cars all dividing by 1.2 ish suggests there were only 80 odd cars in the sample.

Kerdevan   
Thu Aug 09 2012, 12:47am
Joined: Aug 09 2012
Member No: #984
Location: Armadale, West Lothian
Hi PClark, Hate to contradict but both the C6 and C5 have shock absorbers. They are very short and VERY expensive, over £300 to have one changed on my C6. Was going to be £700 for my C5 but they took it in part exchange instead. I've taken out a 3 year warranty extension but not Citroen's one.
speedfix   
Sat Oct 06 2012, 09:46pm
Joined: Sep 28 2012
Member No: #1043
Location: south west
could the ball joint failure be down the failing spheres or the useing of the sportmode putting more loading on the joints with the increasing rough
roads, just a thought.
nickyg   
Sat Oct 06 2012, 10:08pm
Joined: Apr 28 2010
Member No: #100
Location: Tyrone
It may be a factor, speedfix, but the 407s share this joint and they fail just as miserably!

I think the joint itself is strong, just that once the water gets in past the seal and/or grease it's game over!

Nicky
gmerry   
Tue Oct 22 2013, 01:47pm
Joined: Dec 11 2009
Member No: #21
Location: Scotland
Hi all, 2008 C6 presented and passed MOT 1st time.

Front ball joints (replaced in 2011 complete with grease points) obviously still good

LHS rear wishbone bush replaced 2013 - pass

Headlamp HID bulbs replaced 2013 -- pass

No other repairs carried out in 2013 that would have a bearing on the MOT, just routine servicing.

Regards
G
speedfix   
Tue Oct 22 2013, 06:14pm
Joined: Sep 28 2012
Member No: #1043
Location: south west
Pleased it passed 1st time.
Did you have any advisory items that are attributed to the C6.
C6Dave   
Tue Oct 22 2013, 06:46pm

Joined: Oct 01 2009
Member No: #1
Location: Northumberland
My 1st one, a 2007 passed twice with 1 advisory for the power steering pipe joint leaking ( but was never fixed )

My current one has passed with no advisories but is due again at the end of November and it will be interesting to see the outcome at 5 years old.....
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