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

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.

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Average mileage: 156,000 (114,000–214,000)
5 model years affected: 2001, 2002, 2003, 2004, more2005
10 people reported this problem
4 people shared problem details
2001 BMW 330i145,000
2005 bow 3301 overheating I replaced thermostat water pump all belts and pulleys. Still overheating
2005 BMW 330i167,000
My 330i is having the same problem overheating and the hot air does not work.
2001 BMW 330i114,000
ckeng light on low coolent comes on gage showing normal
2001 BMW 330i214,000
Car overheats
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