Thomas88
New Member
- Joined
- Aug 31, 2019
- Messages
- 5
- Reaction score
- 4
- Your Mercedes
- W220 320 CDI 2002
Hey, I have a 2002 s320 cdi, w220 automatic. The car starts fine, idles fine, revs high and everything seems in order, however, after driving a few minutes (1-5min) the car looses all boost pressure.
I have icarsoft mb v2.0 where i can retrieve some data, such as maf sensor values, and inlet pressure.
The maf sensor seems to be working as the value increases with revs, and also the inlet pressure rises when revving. After a few minutes, the turbo disengages, and inlet pressure drops to 95kpa.
I have replaced exhaust manifold gaskets, intercooler, pipes to and from intercooler as these were leaking upon purchase of the vehicle.
There are no fault codes relating to vacuum or engine as i can find. the car is able to run through all gears and keep up with traffic, but overtaking is impossible.
The previous owner has disconnected the egr. There are no fault codes relating to this.
and also, the turbo disengages even if only idling.
So what could be causing this?
I have icarsoft mb v2.0 where i can retrieve some data, such as maf sensor values, and inlet pressure.
The maf sensor seems to be working as the value increases with revs, and also the inlet pressure rises when revving. After a few minutes, the turbo disengages, and inlet pressure drops to 95kpa.
I have replaced exhaust manifold gaskets, intercooler, pipes to and from intercooler as these were leaking upon purchase of the vehicle.
There are no fault codes relating to vacuum or engine as i can find. the car is able to run through all gears and keep up with traffic, but overtaking is impossible.
The previous owner has disconnected the egr. There are no fault codes relating to this.
and also, the turbo disengages even if only idling.
So what could be causing this?