Car Problem Reports

BMW 325Ci Check Engine Light and/or Engine Overheating

BMW 325Ci Problem
11 Reports
Me Too

Model Years Affected: 2001, 2002, 2003, 2004, 2005, 2006

Average Mileage: 92,675 mi (26,200 mi - 148,000 mi)


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.

  • Visitor, , 148,000 mi

    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.

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  • Visitor, , 26,200 mi

    Service engine soon light came. As per my Non BMW mechanic, thermostat was the culprit, which was replaced.

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  •  Rookie

    Thermostat stuck open. replace thermostat.

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