Adrenaline1971

Hi guys,

Having an issue with a GL 320d going on limp mode. Fault is low boost pressure. Recently I replaced the Turbo because of a high boost pressure issue ...

Did anyone come across this issue ?

Thx,

MJ50

moved to X164 forum...

fireman1073

check the plastic piping for cracks, they can be invisible until under boost then open up letting boost escape

Adrenaline1971

thx, for the tip , will do the checks

Adrenaline1971

Checkec all pipes and hoses ..... Still same fault ....any help would be much appreciated

alx

pressure sensor orifice is usually dirty at your mileage. remove sensor and clean up as needed.

check pressure regulator.. linkage gets often stuck.

have the high pressure side pressure tested- your previous overboost might have compromised the intercooler and now it is leaking

Adrenaline1971

Dear Alx, thx for your input. Checked everything and no leaks have been found. The Turbo is new ..... Therefore linkage is working fine. Removed the inter cooler to check for leaks but again everything looks good
Which pressure sensor are you referring to ?
Thx for your time