List Of 2003 Bmw Z4 Check Engine Light References. My mechanic replaced the affected sensor with a cheap non genuine part twice only for the light to. Repairpal will help you figure out whether it's your emissions system, sensor, catalytic converter, or something else.

Check engine light is coming on from time to time. Coolant light came on in early nov, so i did a quick search here and spoke to the local bmw dealer as well and the conclusion was it just needed coolant topping up. Our bmw service department can help you find out what code is turning your check engine light on or diagnose why your check engine light is shining.

