My BMW 635d smells unpleasant - is this the DPF regenerating?
My 3-year-old BMW 635d occasionally produces an unpleasant smell from underneath. This can best be described as being like 'burning rubber' or 'dead mouse'. It is the only problem with an otherwise perfect vehicle. The car is mainly used for 10-mile journeys to work and back - little else - and only does 5000 miles a year. Could this be the Diesel Particulate Filter regenerating and, if so, is this OK?
Asked on 16 March 2013 by DH, Farningham
Answered by
Honest John
Yes. If it smells a bit like an incinerator it is the DPF regenerating. Best to leave the engine running for a minute or two while it's doing that rather than simply switch it off.
Similar questions
Are engine revs raised during DPF regeneration on a Nissan Qashqai?
I have a 2011 BMW 320d. It's the N47 engine and had the timing chain done last year at 130k miles and was done at 80k miles. It's now covered 182k miles mainly motorway driving and the DPF light keeps...
I currently drive a BMW 330d E90 LCI model. It's done 86k and am now beginning to wonder how long the DPF will hold up. It's run exclusively on Shell V Nitro and serviced every 10k (oil, air filters etc)....
Related models
.jpg?width=115&height=75&rmode=crop)
Sleek looks and more handsome than previous 6 Series. Powerful yet economical 640d has an epic engine. Amazingly refined.
Elsewhere on 
