Does your problem disappear after the 1m30 warm-up program? I'm starting to think more and more about a MAF sensor problem, I've changed mine for a new Bosch (not the original part I only paid it 150€ on autodocs). the original MAF sensor on the N62 is a Bosch, but I'm looking for a used original M ...

Yes, it was a smoke test.
No oil leak.
When I repaired all the intake leaks, the smoke was coming out of the crankcase vent.
What’s is the goal of the crankcase vent? Is it supposed to release pressure inside the valve cover like a dump valve?

It has 200 000 kms / 124 000 miles.
How can I check my injector ?
When the car reach his normal idle, the car run great.
Or maybe he doesn't have all his HP and I've never felt all the HP.

I've had this problem for a long time, ever since I got the car (4 months).

No idea

Yes the new MAF is a Bosh.

No it was the same before, i change it because i have an error code from INPA.

I bought a Bosch one.

Hello, I'm reaching out to you today because I'm having an issue with my X5 4.4. I've been trying to pinpoint this problem for a few months now. First, my X5 is a 2004 model equipped with the 4.4 N62 engine producing 320hp. When I start the vehicle cold and it begins its warm-up program (open/closed ...