Timing chain/decoking valves - MINI Cooper Forum

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post #1 of 4 (permalink) Old Nov 25th, 2012, 09:09 PM Thread Starter
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DIY Timing chain/decoking valves

I recently took my cooper s for the timing chain to be replaced. The cost for this was over 1000 including the diagnostics. Within 10 days the car was misfiring and I took the car back to the mini dealership. Again it went on the diagnostics and this time a decking of valves was required at a cost of 2500. Mini paid for parts and 50% of labour charges but my bill was still over 1000. The car has done 22000 miles and is 2007 model. My question is, should the mini dealership have diagnosed the valve problem during the initial repair to the timing chain on the diagnostics computer? I have asked for a copy of both diagnostics reports, which I have paid for, but have not recieved anything. Do I have legal recourse on the mini dealership to recover some/all the money paid for the valve decoking, which should have been spotted? Your advice would be appreciated.
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post #2 of 4 (permalink) Old Dec 1st, 2012, 09:04 AM
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Firstly you should have never needed to get the timing chain done at 22000! Mines done 60000 and I still haven't changed it. They are meant to last a lot longer. They did have a timing chain problem. Did yours have a recall?

Emma.
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post #3 of 4 (permalink) Old Dec 1st, 2012, 09:38 AM
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Was it all to do with the timing chain tensioner in the first place?
The chain might have been damaged if the tensioner wasnt functioning correctly I suppose, but then they might have changed the chain unnecessarily when all it was, was the tensioner needing updating, who knows?

Unless the head was taken off, which I dont think they need to do when changing the chain it might not be possible to notice the state of the valves?
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post #4 of 4 (permalink) Old Dec 1st, 2012, 10:36 AM
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Hi ya

if they have changed the timing chain and have charged you for it and the fault is still there. they have not diagnosed the fault correctly and fixed it correctly so they are liable for all cost not 50% to rectify the problem. if they are admitting to 50% they no they have screwed up
speak to citizens advice they ail pretty much say the same.
carboning up of the valves is a know and big problem with the early r56 they revised the crank case ventilation on the later cars. and its normally the first place you look if you start to have problems
its nothing to do with bad fuel it just the way the positive crank case oil vent system works.
best thing is to install a catch tank and bypass all the system or mod it as its been done here once its de coked

http://www.mini2.com/forum/second-ge...se-delete.html


sorry i feel your pain all the best
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