Check Engine Light and/or Engine Overheating on BMW 325Ci

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.

RepairPal Verified
Average mileage: 101,740 (26,200–148,000)
6 model years affected: 2001, 2002, 2003, 2004, more2005, 2006
12 people reported this problem
3 people shared problem details
2006 BMW 325Ci148,000
Using an OBDII Scanner Tool, error codes determined that the thermostat failed open, and the service engine soon light came on. Replaced thermostat, problem went away. No engine overheating occurred.
2006 BMW 325Ci26,200
Service engine soon light came. As per my Non BMW mechanic, thermostat was the culprit, which was replaced.
Thermostat stuck open. replace thermostat.
Related Items:
Will come on and cause a delay on first gear and then will turn off or we turn off car it will...
I just had my crankcase ventilation system replaced (e.g., hoses, valves, etc) on my 2004 325Ci...
The low coolant light may illuminate and/or the engine may overheat as a result of a coolant le...
Hello Everybody, I don't know anything about cars so here is my question. At the ignition th...
Idle control valve replaced, CCV and hoses replaced, MAF replaced, it's not showing any codes o...

Related Content