[zsolt126]

Hello everyone!

I have a car F10 528i N53B30, it had trouble starting, it revved and choked a lot.

Based on the error codes, it was a NOX sensor problem, I replaced and adapted the sensor, and a few things were solved.

However, when it's cold, the engine jerks before it warms up, and when it starts cold, it stutters and smokes a little.

Does anyone have a solution to the problem?

Error codes:

118502 Mixture control 2: Mixture too rich, large deviation.
118402 Mixture control: Mixture too rich, large deviation.

[ilija]

I have the same exact problem, still not been able to resolve it, I have changed the NOX sensor and also coil packs and injectors and also the spark plugs but the issue still remains