BMW
330Ci
12

Check Engine Light and/or Engine Overheating on BMW 330Ci

Problem Description and Possible Solution

The thermostat may fail resulting in engine overheating and/or illumination of the Check Engine Light. Replacement of the thermostat along with a complete inspection of the cooling system will be necessary to correct this concern.

Overheating can cause severe engine damage. If the engine begins to overheat it is recommended to stop at the first available location and have your vehicle towed to a repair shop.

Problem Data
RepairPal Verified
Average mileage: 98,887 (47,550–200,000)
6 model years affected: 2001, 2002, 2003, 2004, more2005, 2006
12 people reported this problem
Comments
Viewing 1 - 4 of 4 comments
rough idle, check engine light on and overheating
Replaced expansion tank, thermostat and disa valve. Having entire cooling system checked as well.
Repaired by Dealer. Thermostat replaced.
thermostate failed at about 130K miles and had to be replaced
check engine light on / thermostat identified/ thermostat replaced. low coolant level light was on too that am with start up but turned off by it self. so far so good though.