Mini Cooper Diesel Jerking and Error Codes

Hey, I had similar symptoms with my Mini (same model). Jerking, check engine light, and rough running. Have you checked the manifold pressure sensor? Could be a faulty reading causing the engine misfire.

Interesting, thanks for the input. Where is the manifold pressure sensor located, and is it something I can check myself without special tools?

Yeah, the manifold pressure sensor is usually attached to the intake manifold itself. You might be able to visually inspect it for any obvious damage, but testing it properly requires a multimeter. Honestly, given the symptoms and error codes, it sounds like the intake manifold itself is the problem, especially if you suspect a leak. It's a common issue. I'd recommend taking it to a workshop to get it properly diagnosed before throwing parts at it. You don't want to mess with the air intake system without proper knowledge.

Just got my Mini Cooper back from the shop. Turns out it was indeed the intake manifold. They replaced it, and the car is running smoothly again. Total cost was 1180€. Thanks for the tip, it really helped me narrow down the issue and be prepared when talking to the mechanic!