Movano intake manifold leak

I've experienced very similar issues with my Movano. Jerking, rough idling, and a powerful exhaust smell... It sounds like you might be dealing with a vacuum leak, possibly in the intake manifold. Think of your engine as a finely tuned orchestra; if the air intake isn't sealed properly, it's like a rogue trumpet player throwing everything off. Have you checked for any hissing sounds around the intake area? A gasket leak could also be the culprit, leading to engine misfires and poor performance.

Thank you for the quick response! I have not specifically checked for hissing sounds, but I will do so. Given your experience, do you suspect a specific area of the intake manifold is more prone to leaks? The symptoms seem to align with what you describe, however, I am a bit worried about the diagnostic effort.

In my case, the issue turned out to be scorching on the intake manifold, causing it to leak. It’s like a balloon with a tiny pinhole – hard to spot, but it gradually deflates. Given the stored error and all the symptoms, it points to a similar problem. You could try a smoke test to pinpoint the leak, but honestly, with those symptoms, especially the stalling and reduced power, I'd advise taking it to a trusted workshop.

Thank you for the additional insights and the advice. Your explanation of your experience was extremely helpful. I took the car to the mechanic, and as you suggested, the intake manifold was indeed defective due to scorching, resulting in a leak. The repair cost amounts to approximately 1180€. I appreciate your assistance!