Quote:
Originally Posted by AndyN01
There's an interesting note on this site:
https://www.dpfproblems.net/cars-without-a-dpf/
".....BMW’s also have a cosmetic method of identifying whether a Particulate filter (DPF) is present, assuming that a standard non modified exhaust is fitted, BMW cars which have straight exhaust tailpipes have DPF’s fitted, those without DPF’s have a tailpipe which points slightly downward...."
Bizarre but, apparently, true. 
Andy. |
That is correct on the early years when certain cars had DPFs. The BMW M47 diesel engine (sounds familiar?) had an option of of a DPF. The old M47 engine that didnt have one was identified by having a downward pipe like all diesels to stop the rear of the car being covered in soot. The larger diesel engines from 2004/5 had a DPF such as the 325d and 330d. In 2008 the N47 was introduced to replace the old M47 engine and that had a DPF as standard. The problem with the N47 engine was timing chain rattle at approx 100k which meant an engine out job as the chain was at the rear.
