1 series n47 timing chain issue
Discussion
So my May 2012 118d (f20) has been diagnosed with the timing chain issue. Its currently got 19,000 miles on it and has always had an unusual engine rattle.
I had it looked at at about 1,000 miles on the clock, and at about 14k the noise changed to a lovely scraping noise.
Its taken 2 further months for the dealer to get round to finally diagnosing the issue, now they are currently stating that bmw dont currently have a fix as my car has all the latest parts. As i understand it the fix on earlier engines was a new crank chain and tensioners.
I'm trying to find how many other f20 n47 have this issue and if anyone who has one (or works for bmw) knows of any total chain failures yet?.
Ill post a link to a youtube clip of the sound i have.
http://www.youtube.com/watch?v=3oWrjdxM6eQ&fea...
I had it looked at at about 1,000 miles on the clock, and at about 14k the noise changed to a lovely scraping noise.
Its taken 2 further months for the dealer to get round to finally diagnosing the issue, now they are currently stating that bmw dont currently have a fix as my car has all the latest parts. As i understand it the fix on earlier engines was a new crank chain and tensioners.
I'm trying to find how many other f20 n47 have this issue and if anyone who has one (or works for bmw) knows of any total chain failures yet?.
Ill post a link to a youtube clip of the sound i have.
http://www.youtube.com/watch?v=3oWrjdxM6eQ&fea...
Edited by northandy on Saturday 9th February 19:26
sprinter11 said:
if its the same n47 engine in the 520d then there are loads of timing chain failures on the lci models (57+)
It is, i believe mines an n47t (which is a post sept 11 build) and according to bmw there is no chance of chain failure, i'd like to find out if thats really the case.I guess the issue is that the newness means many wont have covered bg miles yet.
We actually have 2, the other has done 25k miles but doesnt sound anything like mine.
tim0409 said:
This the translation from the BMW PUMA case for N47 timing chain issues... -
Attention:
No repairs are allowed in vehicles with production date after 03/2011 and vehicles in which all existing measures have already been made. The sound now is the moment, the normal state of this world! No risk of broken chain!
Have seen that, the issue is i have 2 f20 118d, both post sept 11, one is fine, the other is the one in the you tube clip. I cant believe a noise like that (which is getting louder and louder) will not result in a snapped chain eventually. Attention:
No repairs are allowed in vehicles with production date after 03/2011 and vehicles in which all existing measures have already been made. The sound now is the moment, the normal state of this world! No risk of broken chain!
Ciff said:
one for France dated 14.12.12
So uk BMW must have the same
PuMA
Consult measure M
No measurement Theme
43863106-09 N47, N47S, N47T, grinding noise in the engine, the timing chain scrapes
Validation date (dd / mm / yy) Current Status Affiliate
Validated 14/12/12 FR, VP
Vehicles involved
Series E Motor Body
E60 E61 E81 E82 E83 N47 N47S N47DKO N47T
E84 E87 E88 E90 E91
E92 E93 F10 F11 F20
F25 F30 F31
Production period (beyond) Comment period Return info (all cases
(Dd / mrn / yy) production until) (dd / mnn / yy) /
Complaint
Engine noise and friction scraping type from 1500 rev / min, perceptible in the cockpit. The noise is noticeable on the gearbox housing or the oil pan.
Cause
Sharp edges of the sprockets or the chain does not move regularly on the slides.
Important measure:
before starting the repair, ensure the availability of essential items!
It is necessary to distinguish between three cases:
case 1:
for motors N47, N47DKO, N47S, production period from 01.03.2007 to 05.01.2009.
In case of customer complaint, replace the following components:
- 11 21 7 803 479 replacement crankshaft with bearing shells.
Note: Use crankshafts produced after 5. 1. 2009!
The production date stamped on the crankshaft sprocket (see Appendix, page 1.)
Meaning of numbers
- The first two digits indicate the production line.
- The six digits indicate the year (two digits), month, and day.
- The last five digits are the serial number of the crankshaft. The crankshaft shown on page 1 of the Annex has been made October 21, 2009.
- 11 41 7 797 896 chain drive of the oil pump.
- 11 31 8 506 652 chain below.
- 13 52 7 797 906 sprocket drive the oil pump.
- 11 27 7 800 523 gear (intermediate gear for balancing shafts).
- 11 27 7 802 575 pinion (drive shaft balancing).
- 11 27 7 802 576 pinion (drive shaft balancing).
- 11 31 8 510 014 upper chain.
- 11 31 7 797 899 guide rail for upper timing chain.
- 13 52 8 573 158 guide rail for timing chain lower
- 13 52 8 573 159 rail for timing chain tensioner below.
Note: the lower chain, use only the rails and tensioners guidageamortis! (See Appendix, page 2)
For greater supply chain, use only the rail without reinforcements! (See Appendix, page 3)
Note: according tune and repair instructions for the idler lesarbres balancing!
If the idler gear and balancer shafts are set incorrectly, the engine can produce a crankshaft with nine bruitsmême, etc.. View manual repair 11 21 500 "replacement of the crankshaft."
Note: On vehicles on which the crankshaft has been replaced under uneréparation previous:
treat these vehicles as described in "case 2".
Case 2:
for motors N47, N47DKO, N47S, N47T period from production of 05.01.2009 - 01.03.2011
In case of customer complaint, replace the following parts:
- 11 31 8 506 652 chain below.
- 13 52 7 797 906 sprocket for driving the oil pump.
- 11 31 8 510 014 upper chain.
- 11 31 7 797 899 guide rail for upper timing chain.
- 13 52 8 573 158 guide rail for lower chain.
- 13 52 8 573 159 rail for timing chain tensioner below.
Note: it is not necessary to loosen the bolt on the idler for the arbresd'équilibrage
Note: the lower chain, use only the rails and tensioners guidageamortis l (see Appendix, page 2)
For greater supply chain, use only the rail without reinforcements! (See Appendix, page 3)
Note: On vehicles having already been under repair track without reinforcements and surlesquels both chains have been replaced: treat these vehicles as indicated inparagraph "Case 3).
Case 3:
For N47T engine part products from 01.03.2011 and engines already repaired with rails deguidage without reinforcements.
In case of customer complaint, replace the following parts:
- 11 31 8 506 652 chain below.
- 13 52 7 797 906 sprocket for driving the oil pump.
- 11 31 8 510 014 upper chain.
- 13 52 8 573 158 guide rail for lower chain.
- 13 52 8 573 159 rail for timing chain tensioner below.
Thanks cliff, that does show a repair for my engine, will mention it to bmw tomorrow.So uk BMW must have the same
PuMA
Consult measure M
No measurement Theme
43863106-09 N47, N47S, N47T, grinding noise in the engine, the timing chain scrapes
Validation date (dd / mm / yy) Current Status Affiliate
Validated 14/12/12 FR, VP
Vehicles involved
Series E Motor Body
E60 E61 E81 E82 E83 N47 N47S N47DKO N47T
E84 E87 E88 E90 E91
E92 E93 F10 F11 F20
F25 F30 F31
Production period (beyond) Comment period Return info (all cases
(Dd / mrn / yy) production until) (dd / mnn / yy) /
Complaint
Engine noise and friction scraping type from 1500 rev / min, perceptible in the cockpit. The noise is noticeable on the gearbox housing or the oil pan.
Cause
Sharp edges of the sprockets or the chain does not move regularly on the slides.
Important measure:
before starting the repair, ensure the availability of essential items!
It is necessary to distinguish between three cases:
case 1:
for motors N47, N47DKO, N47S, production period from 01.03.2007 to 05.01.2009.
In case of customer complaint, replace the following components:
- 11 21 7 803 479 replacement crankshaft with bearing shells.
Note: Use crankshafts produced after 5. 1. 2009!
The production date stamped on the crankshaft sprocket (see Appendix, page 1.)
Meaning of numbers
- The first two digits indicate the production line.
- The six digits indicate the year (two digits), month, and day.
- The last five digits are the serial number of the crankshaft. The crankshaft shown on page 1 of the Annex has been made October 21, 2009.
- 11 41 7 797 896 chain drive of the oil pump.
- 11 31 8 506 652 chain below.
- 13 52 7 797 906 sprocket drive the oil pump.
- 11 27 7 800 523 gear (intermediate gear for balancing shafts).
- 11 27 7 802 575 pinion (drive shaft balancing).
- 11 27 7 802 576 pinion (drive shaft balancing).
- 11 31 8 510 014 upper chain.
- 11 31 7 797 899 guide rail for upper timing chain.
- 13 52 8 573 158 guide rail for timing chain lower
- 13 52 8 573 159 rail for timing chain tensioner below.
Note: the lower chain, use only the rails and tensioners guidageamortis! (See Appendix, page 2)
For greater supply chain, use only the rail without reinforcements! (See Appendix, page 3)
Note: according tune and repair instructions for the idler lesarbres balancing!
If the idler gear and balancer shafts are set incorrectly, the engine can produce a crankshaft with nine bruitsmême, etc.. View manual repair 11 21 500 "replacement of the crankshaft."
Note: On vehicles on which the crankshaft has been replaced under uneréparation previous:
treat these vehicles as described in "case 2".
Case 2:
for motors N47, N47DKO, N47S, N47T period from production of 05.01.2009 - 01.03.2011
In case of customer complaint, replace the following parts:
- 11 31 8 506 652 chain below.
- 13 52 7 797 906 sprocket for driving the oil pump.
- 11 31 8 510 014 upper chain.
- 11 31 7 797 899 guide rail for upper timing chain.
- 13 52 8 573 158 guide rail for lower chain.
- 13 52 8 573 159 rail for timing chain tensioner below.
Note: it is not necessary to loosen the bolt on the idler for the arbresd'équilibrage
Note: the lower chain, use only the rails and tensioners guidageamortis l (see Appendix, page 2)
For greater supply chain, use only the rail without reinforcements! (See Appendix, page 3)
Note: On vehicles having already been under repair track without reinforcements and surlesquels both chains have been replaced: treat these vehicles as indicated inparagraph "Case 3).
Case 3:
For N47T engine part products from 01.03.2011 and engines already repaired with rails deguidage without reinforcements.
In case of customer complaint, replace the following parts:
- 11 31 8 506 652 chain below.
- 13 52 7 797 906 sprocket for driving the oil pump.
- 11 31 8 510 014 upper chain.
- 13 52 8 573 158 guide rail for lower chain.
- 13 52 8 573 159 rail for timing chain tensioner below.
Ciff said:
yep there is some new parts to help with noise. I dont think the chains snap any more. Ive only found a handful of post 2009 that the chains have snapped. But i guess mileages are much lower so far.
new chain guides
http://www.facebook.com/notes/bmw-problem-timing-c...
Ive not found any so far, but as you say wont be many that have covered higher miles yet.new chain guides
http://www.facebook.com/notes/bmw-problem-timing-c...
Ciff said:
I'm talking a small handful throughout Europe, 1 f10 in Ireland and 1 or 2 in France and Spain which considering the 10s of thousands cars sold is nothing, could even be down to driver error shifting down and over reving engine. However lots of post 2009 cars still have the noise including f10, f20 and even the new f30. lets hope the new chain guides work.
Lets us know how you get on with BMW as im going to have them look at mine in a few weeks, although you can only just hear it inside at idle.
Will keep this updated.Lets us know how you get on with BMW as im going to have them look at mine in a few weeks, although you can only just hear it inside at idle.
Mines audible at 30mph over the stereo as plain as day. Initially it was a sound like someone shaking ball bearings in a tin can.
Well no further on really, have told the dealer of this fix quoted above, after they kept saying BMW say there is no fix currently.
Hugely disappointing as the car is getting louder and louder, so have given a deadline now of the end of the month to have it resolved.
Then I need to decide on the next step, I'm figuring if I go the rejecting route I need to get an independent view on the car.
Hugely disappointing as the car is getting louder and louder, so have given a deadline now of the end of the month to have it resolved.
Then I need to decide on the next step, I'm figuring if I go the rejecting route I need to get an independent view on the car.
richardbmw1 said:
My 2007 vintage 1 series has just been diagnosed with a broken timing chain - 2500 miles AFTER having the software updated to 2013 version with stop/start feature.
Did others who had this problem have their cars serviced before the issue? - BMW apparently update software to latest issue as standard.
Maybe the later models have had the chain improved to cope with the higher starting duty......
I don't believe the chains are different, the issues seem to be with tensioners/sprockets which damage chains.Did others who had this problem have their cars serviced before the issue? - BMW apparently update software to latest issue as standard.
Maybe the later models have had the chain improved to cope with the higher starting duty......
I don't let my stop start activate now, 15,000 miles on the replacement setup and it's not as noisy as before but it still not right. I am just waiting till I can chop it in in 6 months now.
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