[marcusturbo]

2010 MB TDCi 103kW Auto - 151000kms

My problem is that when the car is at idle revs or when manoeuvring, the engine cuts out. Sometimes at the same time is will puff a bit of smoke oot the back. It's only just starting doing this and it's very annoying.
Thinking it was the EGR, I took this off and gave it a clean but it was quite clean in the first place. The only thing that seemed odd is that the valve doesn't fully close but does when the plug is connected, solenoid energises and pulls the valve closed. When cleaning I fully closed the valve, filled the inlet side with kerosene and none leaks through so the valve seat is fine.

Out today looking at new cars, surprise surprise, and it was behaving badly.
Drives fine out on the open road, it's only if you stop or when manoeuvring.

Is my EGR valve faulty or is it something else.
Ford want $450 for a new one and interesting my ford garage( Perth WA) have never sold one previously or got one into the shop.