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BMW 3-Series (E90 E92) Forum
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M57 & Timing Chain
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06-17-2015, 03:37 PM | #23 |
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Does anyone know roughly what sort of price it is to have it replaced my cars hit 93k with remap ect.. Would like to get it done hearing all this for peace of mind cheers
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06-17-2015, 03:44 PM | #24 | |
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06-17-2015, 03:46 PM | #25 |
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Not seen VAG engines snap but have seen stretch. The 3.2 as in the r32 can stretch quite badly, but you can measure the stretch with diagnostic software apparently to see if it's within tolerance.
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06-17-2015, 04:31 PM | #26 | |||||||
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But from what I've seen as an owner there's little that can be done bar getting the tensioner repalced to stop this sort of thing happening it would appear. Quote:
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trust me if your car does 4000 miles a year change the oil every year don't wait for the CBS indication light to tell you it needs a service. When we got the above car it rattled like a pig if you can avert your eyes form the sludge build up this one rattled like a pig the tensioner leaked and the chain was slack plus we had Vanos issues. Quote:
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Merc's I can say hand on heart seem to assemble a more durable package. But re a question asked earlier by makkann re the engine well hope these pic's answer We had some time so the engine was rotated 180 degrees the sump was removed for a nose around. As you can see below sump's off and if you've got sharp eyes you'll notice that everything on this is in decent shape had a close up peak of the bottom end/shells etc. all looked in good order. I can say after looking / talking to the guys who tackled the job is that this was a failure totally unexpected Last edited by old grey steve; 06-17-2015 at 04:41 PM.. |
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06-17-2015, 04:36 PM | #27 | ||
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What I will again say is these are in my eyes low in numbers we know about the N47 issues, these M57 issues are or would seem to be rare consider how many years the engines been produced overall they are durable. We are seeing/discussing what I've seen plus there's another post on here re the exact same issue, for which I've posted with some advice. Overall its not a bad power plant re the chain. All I'd say is its good info to read but please don't fall out of love with your car based on what I've posted. Overall they are a good unit re this area of the engine I thought though it would be worth posting to highlight/advise only Last edited by old grey steve; 06-17-2015 at 04:49 PM.. |
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06-18-2015, 03:38 AM | #29 | |
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Time wise just doing this is over 34 workshop hours, which is not too far from the chain and all the parts |
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06-18-2015, 04:26 AM | #31 | |
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Sadly when they go they seem to cost. |
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06-18-2015, 07:23 AM | #32 |
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I think £2k plus parts is an expensive preventative maintenance item.
Is there anything else preventative that we could do (apart from proper routine servicing) that costs less than £500? |
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06-18-2015, 08:01 AM | #33 |
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If this was a petrol things would be so much more simplistic as your looking at around £40+VAT and say an hour tops to sort it these diesels sadly are a different animal re prevention I guess all you can do is keep your end of the bargain and change the oil regularly and breather for that matter but apart from that and I'm not usually list for words but I can't think of anything else that can be done on a min serviceable part I'm afraid to say
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06-21-2015, 05:23 AM | #36 | |
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Clean oil is essential big miles you'll be perhaps driven by the advice re service schedules on the dash but for small mileage change the oil if you can once a year or like me twice a year at least you're bit. If you'd of had a petrol Mo the tensioner easy being but sadly on the diesel setup it's a whole different ball game |
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07-22-2019, 10:03 AM | #37 |
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someone very well familiar with servicing these engines said that majority of these failures are usually due to long intervals between oil changes and that goes on for turbo reliability....not sure if it's true, but I am thinking to order oil asap seeing this...
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07-24-2019, 12:00 AM | #38 |
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10000mi/annually (whichever is sooner) is roughly where you should be for oil changes, though I'm dubious about how much it'll really affect the chains. The turbo is way more sensitive, for obvious reason. Make sure it's the right stuff too, obviously!
Main stresses on chains: Turning the engine backwards; don't leave it in gear when parked, or at least select the gear which will turn the engine forwards if the car rolls. Start-up (and stopping); don't start and stop the engine constantly if you can...within reason. Jerky driving; easy on the clutch, always. The clutch and dmf will thank you too. High revs, especially when cold; there's just no need to ring out an M57 anyhow! |
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