m46 320d No power

[hennies1]

Hi Please advice. BMW 320d start easy, but when accelerate slow. Remove Maf sensor wire better but not to mention, smoke a lot when MAF remove, any advice please

 

[Maljan]

Lack of power usually means the turbo is not boosting any more.

The list of possible problems is quite long. Try this howto guide:

http://www.bmwforums.info/general-g...roubleshooter-guide-power-smoking-issues.html

 

[Dolfie]

Hi Please advice. BMW 320d start easy, but when accelerate slow. Remove Maf sensor wire better but not to mention, smoke a lot when MAF remove, any advice please

Hi Hennie. I had a similar problem however no smoke with MAF sensor removed. It turned out to be a perished vacuum line. Easy to inspect/replace. Remove the engine cover and there will be a vacuum line running top front. If it is broken or bad condition, replace it and see if the turbo kicks in.

 

[Waseem 333i]

Start off with replacing vacuum lines and cleaning out egr. Then clean out intercooler and inspect for boost leaks. Replace oil separator also.

Then remove DPF (better known as CAT)