Hi, first sorry for my english and my failure description!

i sometimes have a strange behaviour with my td6:
when i switch of fthe engine its not stopping immediately,
the engine stops working but there is a shaking and a little rumble
till it "ramps down". i usually have this problem when i use it heavier then normal.

Anyone a idea where to look first?

Thanks!

so then engine shudders after you switch the key off , yes ? OR does it actually carry on running and then stops ?
simon

thanks for your quick reply!

yeah the engine shudders for 1-2 seconds after you switch it off!

I take it the car performs as it should , no loss of power , strange noises or transmission problems ?

everything fine, had it since i bought the car, gearbox was changed last week and now i wan't to get rid of
this phenomen, i have to say that i have a performance box from the previous owner but should not be the problem?

you can take it off and see if it makes any difference but I doubt that's the issue

I would try injector cleaner as it sounds like the injectors are 'lazy' or slow at closing - only a quick thought

As above, or maybe check your vacuum tubes for the engine mounts, maybe a split in a tube.
just a thought.

+1 on the injector cleaner. I use this stuff sometimes when I have that issue (haven't had it in ages).

https://produkte.migros.ch/diesel-einspritzsystem-reiniger

Edit - I have a performance box also. Doubt that's your problem.

i will try the cleaner and report!

thanks guys

Cleaner helped, after a while shaking was getting better till it was gone. But i noticed another thing that i fixed, the crankcase breather filter. it was full of oil! car is still a little smoky on the test drive, i think it will get better! maybe i give it another cleaner. thank you for the input!

Is the crankcase breather the one on top at the back of the engine ? If so there is a BMW 'upgrade' one - it is no longer a paper/cotton filter but a plastic vortex type - fit and forget. Someone should be along with the details shortly

clemenz,
use two stroke engine oil (JASO FC, ISO L-EGC) 1/2 liter on the full tank. you will like the results. now I put 1/2l 2t after every 8k km. engine seams happy.

On my TD6 (155k)and both my Volvo D5's ( one at 145k and the other at 237k)I use 2 stroke oil - have done for years - creates a cleaner burn and less emissions and also lubricates the injectors and fuel pumps. In the UK the diesel has a high amount of bio-diesel added by the manufacturers and as such provides less lubricant for the afore mentioned parts/components. I have never had a fuel pump failure (a lot of taxi drivers in the UK did with the introduction of bio-diesel being added - just google it) , car runs smoother , sound less of a tractor and also ticks over quieter. People have reported more power and more mpg but can't say I have noticed.MOT emissions show that since I started using it the readings are very very low. Just use ordinary 2 stroke oil and not semi or fully synthetic though , and low ash.

I will bring up my old thread and answer myself

I still had the problems that the engine did not stop the moment when i switch it off.
Injector cleaner helped, i thought it were lazy injectors.

BUT

in fact it was the rail pressure valve. there is an o-ring and a support ring, they started to fail.

Changed them and problem solved. Bosch parts you can get for some pounds