how many miles on the clock?
how old?
what's your usual journey?
just thinking maybe clogged dpf? or similar? or if under warranty, don't worry, just take it in and see if any codes come up?

 

you are discribing simptoms that are tipical of mass airflow sensor (debitmeter) fault.
the mass airflow sensor (debitmeter) is the part that controls the airflow through the air filter.
you find it assebled at the end of the air filter.
part no is 05033320AA if you drive a 2.0 CRD vw engine.
the simptoms you describe are typical for a damaged air flow sensor.
happened to me on a golf tdi and to ny dad on his bora tdi.
it is considered a consumable part (like the filters brake discs,aso).
usually gives up around 100,000km but can happen quicker.
they say changing the air filter on time preserves the sensor longer.
don't know if this is your problem,but it sounds very much like it.

 

Found out it was an intercooler pipe that had come of ,its behind the front bumper on the right hand side,the plastic clip had come of I could have done the job myself if I had known what it was.

 

glad you fixed it and it was only that.
if you would have told me you had a hissing noise,i would have indicated this possibility.happend to my dad's bora twice.i changed the clip myself to a metal one and it never happened again.

 

I was going to mention my famous cure all for 2.0 litre CRD Patriots!! Check the fuel filter is not blocked, Check the turbo pipe clamps ......( both ends ) !! Glad you got it fixed !!

 

gogaudi you are suck a pro. I think this guy who fixed his ride made you feel inadequate. it will be ok. you cant fix everything. LOL.

 

no man,i'm not a pro.
actually,this thing happens very often to turbo diesels.
i'm alright,just that i hoped to help the guy and he didn't give me all the details...
LOL

 

Thanks everyone for your advice.

 

My 2.2 Diesel 11MY has just started with these symptoms and is booked in with my dealer tomorrow, i'll update more tomorrow.

 

According to my dealer this is due to pilot error, being in a too high gear for the speed.
But this is the same dealer who has been replacing my power steering pump for 7 months and is unable or incapable of ordering the right part.

 

I would have thought that swapping to the MB 2.2 diesel engine some of the CRD bugs may have been sorted...but it seems not!!