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BMW 118d n47d20 2007 - Broken bottom timing chain - Fixed #

Posted by Derek Smith on December 11, 2012, 12:23 pm

Year of Manufacture *: 2007
Engine Size and Code *: 2.0 n47d20

Hi Just wondered if any one else had come across this problem of broken bottom timing chain.
Head shop and BMW has never heard of it on the diesel model both said problems with petrol models jumping timing.
I was wondering if there was a reason for the sudden failure and if there was a lot of engine damage.
Thanks for your time Derek

Re: BMW 118d n47d20 2007 - Broken bottom timing chain #

Posted by Tony Ludford <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5539' width='330' height='300' border=0 style='border:none;'> on December 11, 2012, 8:25 pm, in reply to "BMW 118d n47d20 2007 - Broken bottom timing chain #"

The dealers probably don't see the issues due to the vehicles they see are well maintained.
In the last 12 months I've done 2x 07-08 320d in as many months and a 330d not long after. Becoming quite used to them now, lol.

They can apparently be done in situ on the 320, but I prefer to remove the engine for ease of rebuild. Both I've done had new upper/lower chains tensioners and guides, rockers, hydraulic followers, oil pump, oil spray pegs (in timing chest). Pretty easy job once the engines out tbh. Head didn't need to come off either of them. (PS, parts were in the region of £1200 iirc)

)

All of them were down to poor oil quality, due to lack of servicing!! The 330d required a complete engine as the damage was terminal when the chain went.

Fixed #

Posted by Derek Smith on February 20, 2013, 3:51 pm, in reply to "BMW 118d n47d20 2007 - Broken bottom timing chain #"
Edited by board administrator February 23, 2013, 2:23 pm

Hi

Now running good new chain' four followers.
vales all good bit of a job but the first ones always the worst.

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