Cooper S Engine Clean.

Cooper S Engine Clean.

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Discussion

wilkij1975

Original Poster:

32 posts

101 months

Wednesday 23rd August 2017
quotequote all
Hi all

The wife has just bought a 2011 Cooper S and the engine management light has come on a few times (it goes out after a while). I took it across to my local garage and they diagnosed that it needs an engine decoke. They mentioned about this walnut decoking which when I Google it it seems not many people do it or not in my area anyway.

Is it worth doing or are the other cleaning options like Terraclean worth a go? I'd rather try this than having the engine taken apart as one independant said that would run to 4 figures!

wilkij1975

Original Poster:

32 posts

101 months

Wednesday 23rd August 2017
quotequote all
Yeah I know but am finding it hard to find someone near to me that does the walnut clean where as there are Terraclean places near by.

wilkij1975

Original Poster:

32 posts

101 months

Wednesday 23rd August 2017
quotequote all
I'm in Northamptonshire, close to Bedford who do do it I've found this afternoon. £350 all in and £96 if I want them to diagnose it again.

The diagnosis I got from my local garage was super knocking on cylinder 4 so pretty sure it needs the clean although I have seen mention of the HPFP and timing chain issues causing this super knocking?

wilkij1975

Original Poster:

32 posts

101 months

Thursday 24th August 2017
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Yeah I found them pretty much straight away. Is at least a 2 hour trip for me though and if you want the full service it's £350 same as the Mini garage in Bedford. Not sure you get the same bits included at the Mini garage but it's only 20 minutes away.

I still need to find out if we can do this as a warranty claim with the garage we bought the car from? We've only had it 6 or 7 weeks and got the standard 3 month warranty.

wilkij1975

Original Poster:

32 posts

101 months

Friday 25th August 2017
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Mini are now saying they need to do their own diagnostic. For £96 I bet they fecking do!

wilkij1975

Original Poster:

32 posts

101 months

Monday 28th August 2017
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OK that's interesting.

I'll see what the Mini diagnostic chucks out at us. If it's not a decoke and something else at least it should be covered by the warranty from where we bought it.

wilkij1975

Original Poster:

32 posts

101 months

Monday 4th September 2017
quotequote all
So just had the call from Mini and it appears not to be an engine decoke that's needed after all. They said it needs a new thermostat and HPFP at £230 and just over £900 repectively!

After just paying out £1000 for a couple of sensors on my BMW, I'm wondering what the hell you pay a premium for these cars for?!?

I won't be getting Mini to do the work as I'm sure it can be done for a lot less than that but have to see if this will be covered by the garage we bought it from first.

wilkij1975

Original Poster:

32 posts

101 months

Monday 4th September 2017
quotequote all
Yeah very frustrating. If the car was a few years older they may have done n on an extended warranty. They gave me an estimate for the work along with other bits that came out of the safety inspection and it came to a mind boggling £2700!!!

More frustrating is that when I picked the car up, they'd buggered the trim on the hand brake lever and weren't going to tell me! They said they'd have to check it wasn't noted down as being broken when I left it but it bloody wasn't!