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MINI2 Chain Problems
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Discussion Starter #1
Hi - Looking for some help and some advice please.Trying to establish if my engine is same type with the inherent design fault BMW N47 engine issue, mine is 2nd Generation Sep 2011 1.6D Cooper, N47D, engine I believe. Been told could be tensioner fault also??

Not sure how best to proceed - so many different prices to repair also? Anyone any ideas for going rate for full repair etc, thanks.

:crying::crying::crying:
 

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Hi - Looking for some help and some advice please.Trying to establish if my engine is same type with the inherent design fault BMW N47 engine issue, mine is 2nd Generation Sep 2011 1.6D Cooper, N47D, engine I believe. Been told could be tensioner fault also??

Not sure how best to proceed - so many different prices to repair also? Anyone any ideas for going rate for full repair etc, thanks.

:crying::crying::crying:
The switch date was September 2010 when the cars were facelifted. The latest engine is a BMW unit. The easy way to from under the bonnet is the PDA diesel had the turbo at the front. The BMW engine, the turbo is at the rear of the bay,
so yes you have the bmw bonus ball,, so the m47 engine is a progression from the older type design engine the n47 this engine was nice and rarely suffered timing chain issues but did have a few issues with swirl flaps and when the electric fuel pump fails it tends to take out the high pressure pump at same time sending metal particles to the injectors and a £2500 bill from bmw to repair,,
so to make things worse bmw kept the fueling system but decided in a moment of pure stupidity or clear money making good for bmw workshops moved the timing chain to rear of engine and mounted the high pressure pump at the rear as well and also fitted a thin timing chain like the petrol engined prince engines,, and like the m47 that watch dog done a program on they attacked bmw for this nuts design and the fact they would not repair these cars free of charge because in their shallow little world there is not a problem with the design just problems with owners abusing them,,, so timing chain is at rear,,, engine out job or can by done removing the gearbox, special tools needed to set chain and sprockets up,,, this above is why i have stopped buying any bmw diesel car with this engine in it 2 day job they fail as early as 40k some driven very gently with 10k oil changes can do over 100k.. for the whole reason of having a sports diesel is to drive it
 

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MINI2 Chain Problems
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Discussion Starter #3
Cheers Mike - local Mini dealer said the issue was with earlier models 1st Generation up to 2009? ie, and Petrol not Diesel, R50? range, and was with the Cooper S models.

The N47 chain failures are with BMW vehicles not MINI?. I gave him my reg no and he says my engine is an N47D.

Is very confusing.........
 

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Cheers Mike - local Mini dealer said the issue was with earlier models 1st Generation up to 2009? ie, and Petrol not Diesel, R50? range, and was with the Cooper S models.

The N47 chain failures are with BMW vehicles not MINI?. I gave him my reg no and he says my engine is an N47D.

Is very confusing.........
BBC One - Watchdog - BMW deny engine failures are due to manufacturing fault
go read this above link. the go put in spare repairs search for bmw on ebay and notice a lot of n47 diesel cars with same issue snapped chain or tensioner gone south,, more like the chain wear and are to long for the adjuster to keep up ie 00.1mm of wear per link on 140 link chain is a lot of extra length and the adjusters end up at their limits and cause the guides to break on some,, are you sure yours is not dual mass flywheel gone as this is also anoth common problem that can sound like timing chain,, its possible to scan and use live data to work it out as live data will have a legend to what the timing should be and below it will be what it is,, sorry if a bit to technical but there's no easy way to describe it,, put it this way i have done loads of them and now i'm getting older i run a mile when one comes in for this repair,, one word of warning from the point you notice noise of running issues with those chains its pot luck if keep driving it its not if it will happen its when..
the dealer is right yes common problem with the prince engines which are petrol same engine as used in peugeot citroen rather have one of those than the n47 diesel to work on or even own to be honest..
how many miles has your car done how many owners and is it all mini/bmw history on it,, if so you may have a very remote chance of contacting factory complaints and see if can get them to stand tall on it.. the odd threat of posting your disgust all over the internet tends to wake them up,, but always be polite and not personal of course lol
added note the watchdog says 2007 diesels but nothing much as changed bmw say 3 years warranty then thats its. i see endless trail of them rattling or with holes in pistons total engine killer when fail, it just takes people 10 years to work out whats been going on
 

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MINI2 Chain Problems
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12 Posts
Discussion Starter #5
Thanks Mike - great info, much appreciated! Registered Sep 2011 done 75k miles, 2 previous owners doesn't have BMW service history.

The dealer advised me for safety reasons not to drive vehicle(is my wifes car) and so has been off the road now for 3mths, whilst I try and sort out etc. Consensus is that is a "stretched chain", been told to try change tensioner first, process of elimination etc and is relatively easy to do?

BTW - the problem started actually 2 weeks/600miles after it was serviced at my local small garage, not a dealer. I took it back to them, they said it was overfilled with oil(not sure how much though,serious admission I'd say), but said this wouldn't have caused the noise??? Do you know if changing the oil, then overfilling could influence the performance of the tensioner maybe? Thanks.
 

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Thanks Mike - great info, much appreciated! Registered Sep 2011 done 75k miles, 2 previous owners doesn't have BMW service history.

The dealer advised me for safety reasons not to drive vehicle(is my wifes car) and so has been off the road now for 3mths, whilst I try and sort out etc. Consensus is that is a "stretched chain", been told to try change tensioner first, process of elimination etc and is relatively easy to do?

BTW - the problem started actually 2 weeks/600miles after it was serviced at my local small garage, not a dealer. I took it back to them, they said it was overfilled with oil(not sure how much though,serious admission I'd say), but said this wouldn't have caused the noise??? Do you know if changing the oil, then overfilling could influence the performance of the tensioner maybe? Thanks.
no overfill of oil would not cause that issue only things it can do is if was so full it hit the crank shaft when turning and come out the oil seals,, as for trying a tensioner you really need to be careful with that approach,, i have seen endless prince engine mini's where new tensioner is applied to worn chain and guides and it dont last long when it is the chain and guides weak,, ie it snaps jumps teeth destroy engine there is no cheap fix to this bmw stupidity,, i've been a bmw fan since i was 18 years old this stopped around 2008 when i realised i was seeing endless n47 diesels and m46 petrols with same issues timing related problems,, e30 and e36 were epic cars mighty strong, low emission rules have produced big problems for owners ie build it lighter means not so strong i guess. its not just bmw they all do it,, but installing a timing chain at rear of a engine is just criminal in my view, and making it with cheap parts to boot,
whats the car worth to you thats the question either spares it out at spares money but you must be honest in the listing as it could comeback and cause issues,, or find a garage that will replace the chain kit at a cost, after its done at least you know its all done for next 60-100k.
 

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MINI2 Chain Problems
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Discussion Starter #7
Thanks Great stuff! I also cant believe the range of quotes to do change chain assembly, £800-£2000??? Will need to get done next few weeks, thanks again.........
 

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Sorry - not clear which engines suffer which fault. Can someone clarify?
prince engine ie same engine has peugeot citroen psa build the lower end and bmw the heads and timing gear, 2006-2010 september, then changed to bmw own engines based on the m46 petrols and n47 diesels and these are starting to appear with chain issues but its not just bmw/mini that these are a problem with all vag engine with timing chains are doing same thing 70k-100k chain stretch or oil pump drives failing , at least the prince engines are ok to work on when have the tools, the later ones have the timing chain mounted on the rear of the engines and means when go faulty engine out or gearbox out
sorry we are talking about bmw n47 diesel so 2010 onwards
 

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MINI2 Chain Problems
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Discussion Starter #10
Any would be Mini repair specialists out there interested in taking this job on ie, Timing Chain Ass replacement. North West Region, Merseyside, cheers.
 

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Any would be Mini repair specialists out there interested in taking this job on ie, Timing Chain Ass replacement. North West Region, Merseyside, cheers.
just a added thought, to do the timing chain the engine needs to come out or gearbox with the mileage your car has it prob would be a good idea to think about clutch and flywheel replacement at same time if keeping car for a while as while its all out its just one lot of labour, ie a £500 flywheel and clutch kit at that point will save a £1000 labour bill from main agents to go back and take it apart again,, i've replace endless flywheels around 80-120k as its a torque engine and the loads are heavy,
 

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MINI2 Chain Problems
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12 Posts
Discussion Starter #12
just a added thought, to do the timing chain the engine needs to come out or gearbox with the mileage your car has it prob would be a good idea to think about clutch and flywheel replacement at same time if keeping car for a while as while its all out its just one lot of labour, ie a £500 flywheel and clutch kit at that point will save a £1000 labour bill from main agents to go back and take it apart again,, i've replace endless flywheels around 80-120k as its a torque engine and the loads are heavy,
Thanks again, would you have any inclination or any idea what the going rate might be for doing just Chain Assembly replacement, so many different prices etc driving me crazy! Cheers.
 

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Thanks again, would you have any inclination or any idea what the going rate might be for doing just Chain Assembly replacement, so many different prices etc driving me crazy! Cheers.
its one of those jobs honestly a lot of garages are afraid of it. its a big one and special tools to lock the timing in correct place etc,, we tend to price them like we dont want the job as it ties up a repair bay and a tech for a good 2-3 days if things go well.. there are companies on ebay if need to do it on a budget type in timing chain replacement bmw n47 engines some of them say £500 labour plus parts but i'm not saying they are good or bad just that they are there,,, the mad thing is my wife as persuaded me into buying a newer clubman d with the later engine so i know somewhere in the future i will prob need to be doing it and fills me full of dread to be honest,,
 
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