Broken 1 Series timing chain

My timing chain has snapped on my BMW 118d. It has done 86k and recieved a full service just over a month ago, since the service it was involved in a collision from the rear which needed a new rear bumper. It was over its service interval by 10k before it went in and was serviced by Kwik Fit. Is there any way the timing chain could have snapped due to the accident, also should Kwik Fit have checked the chain for any wear/damage?

Asked on 4 July 2012 by Jdale82

Answered by Honest John
Snapped because the oil had not been changed frequently enough and consequently blocked the oilway to the timing chain tensioner.

Similar questions
I have a 2007 plate BMW 120d SE, which I bought from a dealership 15 months ago. It has 67,000 on the clock and always been in the dealer network for work and servicing. However, the timing chain has snapped....
I have a December 2009 BMW 118d with 50,000 miles. I've seen increasing reports on forums about the timing chains snapping to the extent that it seems inevitable on all models with this engine - people...
What are the most common faults on a used 2010 BMW 3 Series 320d? I am thinking of buying one and would value your opinion on this model.
Related models
Great to drive and superbly built. Wide choice of models, improved from 2007 with Efficient Dynamics. 118d is super economical.