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Old 22-09-2013, 01:17 PM   #1
Jetcat
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Default CSL crankshaft bearing shell

Hello,

Can anybody give me an advice if there are problems on the CSL with the crankshaft bearing shells?
Some people in Germany recommend to change them on a regular base if the car makes a lot of trackdays.
On my former M3 E46 SMG from 2002, I got them changed by BMW with a letter from Munich for safety-reasons.
Thanks,
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Old 22-09-2013, 02:35 PM   #2
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Hi,

S54 Engine in production between
Feb 2001 and June 2003 were all
subjected to the 'Bottom end''
recall.

As your car was 2002 and more than
likely running a 2002 built engine
then it would have been subjected
to the recall.

The issue with the shells was identified
prior to CSL engine [ S54 Short block]
production started, although one or two blocks
could have been used ?

As regards changing shells that's more a type of use
and mileage consideration, if your still making
good oil pressure, then personally I would
leave well alone, unless its some sort of
dedicated Race Car or Track Weapon seeing
high revs for most of its running hours.

Regards,

The Gorilla.
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Old 22-09-2013, 02:58 PM   #3
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Thanks,
As my CSL is from 2003, I remember having read somewhere that BMW recommends to change the shells at about 100.000 km.
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Old 22-09-2013, 03:29 PM   #4
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Quote:
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Thanks,
As my CSL is from 2003, I remember having read somewhere that BMW recommends to change the shells at about 100.000 km.
Hmmmmmm, prob a good idea
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Old 22-09-2013, 03:29 PM   #5
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I had a set fail recently. Replaced the failed head gasket, and literally on the roadtest afterwards they failed. Number 6 was the worst, just managed to save the crank. They had all started to wear though.

That's the first CSL I have seen with the shells failed to be fair. If you're in any doubt, or just want piece of mind I'd just get them replaced. You can uprate to ARP bolts as well if you like. It's not that expensive a repair either when you put it in perspective. Although it would be fairly pricey at a main dealer I would guess.
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Old 22-09-2013, 03:44 PM   #6
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I had a set fail recently. Replaced the failed head gasket, and literally on the roadtest afterwards they failed. Number 6 was the worst, just managed to save the crank. They had all started to wear though.

That's the first CSL I have seen with the shells failed to be fair. If you're in any doubt, or just want piece of mind I'd just get them replaced. You can uprate to ARP bolts as well if you like. It's not that expensive a repair either when you put it in perspective. Although it would be fairly pricey at a main dealer I would guess.
How much would you GUESS shells are to replace?

Mine went at 65k Miles,
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Old 22-09-2013, 04:18 PM   #7
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So did mine, in fact James is probably talking about my car
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Old 22-09-2013, 07:27 PM   #8
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Hmm, 2 sets I know of then!

Shells are roughly £130+vat for the set, same again for ARP bolts ( a little less for the genuine ones), a new gasket and 4 hours labour. Something around £700 all inc from us I think.

Some dealers are doing 10+ labour rates for older cars, so not sure if that's applicable. If full labour rate was charged it would be over £1000 though. A drop in the ocean for you CSL boys

This is where the warranty comes into its own again. If you have a compliant dealer you can easily get your moneys worth out of that!

When I say its cheap when you put in in perspective I meant against having to buy a bottom end/donor engine(if you can find one!)

When you hear the bottom end starting to go, I would say you have about 10-20 miles driving before it destroys the crank.

65k Shimmy?! wow, that is incredibly premature. Must have had a hard life...
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Old 22-09-2013, 07:37 PM   #9
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Quote:
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65k Shimmy?! wow, that is incredibly premature. Must have had a hard life...
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Old 22-09-2013, 10:26 PM   #10
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I think there's a fair number that have had shells go straight away after a head gasket change (might not admit it) so there might be a link to how the engine is pressured and restarted after build?
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