@LAST HOUR wrote:

Any one else out there had dpf problems or is it just me I have a BMW e91

hi mate we ave just done a ford with the same prob i bet its holding back when you floor it is it a diesel

I’ve got an E61 that developed DPF problems at 105k miles, symptoms were deisel in engine oil. We fixed it by removing the box and chipping out the ceramic interior.
It runs fine now and sailed through the MOT emissions test.

Go on the BMWland forum and read all about it.

A few years ago I worked for a short while selling Jaguars for a well known dealership.

I’d been away from cars for a few years and was shocked when discussing a deal with the sales manager. He asked me what sort of driving the customer did and when I couldn’t confirm it was longer journeys told me not to sell it to him.

Couldn’t get my hat on. You can’t sell him a diesel XF if he’d driving around town. We’ll have allsorts of trouble, “he’ll never be out the workshop” is what he actually said.

The honda accord idtec suffers the same problems.The car will need regeneration usually after about 3 years or as low as 60k,which needs doing at a dealer to turn the warning light off,then quite often regeneration is required more and more often until after about another year or 20k it doesnt work anymore and a new pdf is needed.Dont take the dealers word that honda wont help towards the cost of the repair under goodwill as if contacted directly by the customer they nearly always do even if the car is up to 2 years ouy of warranty assuming the car has a service history.Strangely the crv has the same engine but does not suffer this problem.

@superslab wrote:

The honda accord idtec suffers the same problems.The car will need regeneration usually after about 3 years or as low as 60k,which needs doing at a dealer to turn the warning light off,then quite often regeneration is required more and more often until after about another year or 20k it doesnt work anymore and a new pdf is needed.Dont take the dealers word that honda wont help towards the cost of the repair under goodwill as if contacted directly by the customer they nearly always do even if the car is up to 2 years ouy of warranty assuming the car has a service history.Strangely the crv has the same engine but does not suffer this problem.

DPF`s regenerate every 2 to 3 hundred miles.
If a DPF does not regenerate there is another problem with the engine, air leak, injector problem, electrical problem, incorrect engine oil used (low ash oil needs to be used), exhaust leak, boost pressure leak…..the list is endless.
The main problem is short runs, a regeneration may begin then aborted due to the engine being turned off, this is what causes the high engine oil level as extra Diesel is injected to burn off the soot and ash in the DPF.
Trust me I know about these problems as I have to deal with them almost every day 😡 .
It`s good to see that other car manufactures have DPF problems other than Mercedes.

Excuse my ignorance but what does DPF stand for?

@bagging machine wrote:

Excuse my ignorance but what does DPF stand for?

Diesel Particulate Filter…..I hate them 😀 😀

welcome to the wonderful world of modern deisel engines and deisel particulate filters,
and incase your wondering ALL manufactures have problems with them. most manufacturers now advise that once every two weeks or so you thrash the living daylights out of yr car or as they put it drive at 70mph at over 3000rpm for twenty miles on a motorway.likes been said short trips at low revs accumulate more soot in the exhaust system, clogging the filter and the car doesnt have time to burn it of as designed. 😮

The best solution to DPF problems – http://www.evolutionchips.co.uk/Diesel_Particulate_Filter_Removal_DPF.html?gclid=CJOEkoG2hbgCFQTItAodIHoAJQ

Also note, regeneration will not happen unless you have your seatbelt in and your fuel tank is over a quarter full!!!
Hard to beleive but true

Thanks for the reply mart that explains why my diesel Peugeot 405 Estate has never had the problem despite now showing over 230,000 miles on the clock without any hi cups (too old to have a green image filter just more to go wrong) and why my works Astra van diesel also has not had the problem ( never do less than 70mph)

@Benricho wrote:

Also note, regeneration will not happen unless you have your seatbelt in and your fuel tank is over a quarter full!!!
Hard to beleive but true

Thats a new one on me lol and your right its hard to believe.
Richard yes theyre on all modern diesel motors from 2006ish but some german and french ones from 2002.
And i was told from april gone the diesel emission test has been tightened up so its now not clear whether cars with bypassed or removed dpf’s will now pass. They may or may not