I have a W211 E320CDi in line 6 which keeps going into limp mode although no CEL comes on.
The symptoms are the car goes normally for about 5 mins and then won't rev past 2000 RPM
I have had a look at most possible/probable causes and I have an idea that the cause may be the DPF Pressure Sensor which is mounted behind the air filter box close to the ATF dipstick tube. It has two small diameter hoses connected to it.
It seems that this item , part number A005 153 77 28, was the subject of a MB recall because it was prone to failure but I'm fairly sure mine was never changed
Today I unclipped the power to the sensor and the car exhibited the same symptoms I had been experiencing AND the CEL light didn't come on
These seem to be about £50 each so I just wanted to try and assess whether I'm on the right track before I go ahead and change it
The symptoms are the car goes normally for about 5 mins and then won't rev past 2000 RPM
I have had a look at most possible/probable causes and I have an idea that the cause may be the DPF Pressure Sensor which is mounted behind the air filter box close to the ATF dipstick tube. It has two small diameter hoses connected to it.
It seems that this item , part number A005 153 77 28, was the subject of a MB recall because it was prone to failure but I'm fairly sure mine was never changed
Today I unclipped the power to the sensor and the car exhibited the same symptoms I had been experiencing AND the CEL light didn't come on
These seem to be about £50 each so I just wanted to try and assess whether I'm on the right track before I go ahead and change it