Mercedes ML320 W164 DIESEL- Problem With speed and receiving on steep way.
1.The speed declines
2.although press down on the accelerator, the speed declines
3.Very hard developing speed (runs as non-turbo)
4.WHEN I TURN OFF AND TURN ON AGAIN, HE IS FAST LIKE A PLANE
-----If anyone knows what the problem i would be grateful
THANKS ...




There are lots of threads on W164 and X164diesels with this issue .
Search "Limp Mode"
If it was cold or wet, the most likely cause being reported these days is the DPF Differential Pressure Sensor.


