Hi
Can i ask for some help please.
I am trying to sort out 270cdi ml.
It has turbo boost control issue.
After the drive it will go in to limp mode.
Turbo boost control.
I fitted new maf pieburg from euro car parts,old one wasent showing any faults.
Still same.
Vacuum has been checked and its good at both egt and turbo side. Not droping vacuum at revs etc.
I got 2 more turbo/egr transducers and tried using them,still dose same. 2 spare ones i got are black rubber,on mine one is black one is blue,but i swaped egr and turbo and dident take notice of what color was fitted at turbo,blue one is different part number to black ones.
Turbo vanes are not stuck as i can manualy move the arm .
Turbo vacuum capsule is holding vacuum and not droping it.
I removed both catalytic converters.
Still same.
Inlet manifold flaps are knacked and need doing ,motor is still good as it moves when engine is reved up.
I removed broken linkages.
Wires to turbo transducer are good not broken.
Turbo transducer moves turbo control capsule fine.?
What else i could try?
I got spare turbo vnt control arm in good working order but one on the car seems good.
Any ideas please
When it happens .stop turn key off restart and its good again,it puzzles me.
Had gearbox fluid changed today and its good and at correct level.
Thank tou
Can i ask for some help please.
I am trying to sort out 270cdi ml.
It has turbo boost control issue.
After the drive it will go in to limp mode.
Turbo boost control.
I fitted new maf pieburg from euro car parts,old one wasent showing any faults.
Still same.
Vacuum has been checked and its good at both egt and turbo side. Not droping vacuum at revs etc.
I got 2 more turbo/egr transducers and tried using them,still dose same. 2 spare ones i got are black rubber,on mine one is black one is blue,but i swaped egr and turbo and dident take notice of what color was fitted at turbo,blue one is different part number to black ones.
Turbo vanes are not stuck as i can manualy move the arm .
Turbo vacuum capsule is holding vacuum and not droping it.
I removed both catalytic converters.
Still same.
Inlet manifold flaps are knacked and need doing ,motor is still good as it moves when engine is reved up.
I removed broken linkages.
Wires to turbo transducer are good not broken.
Turbo transducer moves turbo control capsule fine.?
What else i could try?
I got spare turbo vnt control arm in good working order but one on the car seems good.
Any ideas please
When it happens .stop turn key off restart and its good again,it puzzles me.
Had gearbox fluid changed today and its good and at correct level.
Thank tou