Car Problem Reports

BMW 325i Check Engine Light and/or Engine Overheating

 
BMW 325i Problem
19 Reports
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Model Years Affected: 2001, 2002, 2003, 2004, 2005, 2006

Average Mileage: 93,836 mi (52,000 mi - 190,000 mi)

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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, , 52,000 mi

    Amber temp light illuminated. Then went off. It came on again 10 minutes later and quickly changed to red. After cooling, took it to closest mechanic (2 mi) for a quick look. Had towed to BMW mechanic. Determined to be electric water pump and/or thermostat. Told have to remove water pump to get to thermostat so might as well replace both.

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  • Visitor, , 92,000 mi

    Same problem as another customer. The amber temp light came on, quickly turning to red. Took to mechanic and at first he could not find the problem. Took back and he determined that the thermostat was stuck and needed replacing. I don't have the car yet, so I hope that the new thermostat will solve the problem.

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  • Visitor, , 112,723 mi

    thermostat light came on, let car cool, and than low coolant light came on.

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  • Visitor, , 82,646 mi

    CEL came on all of sudden after just purchasing thank GOD for a warranty

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  • navydark1, , 90,000 mi
     Rookie

    thermostat failed causing check engine light. replaced thermostat

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  • Visitor, , 57,666 mi

    overheating

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  • Visitor, , 112,000 mi

    Overheat while driving on I15 south with outside temperature of 79.

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  • Visitor,

    Failure of thermostat. 1st diagnosis due to illogical temp readings on cool/cold mornings. Second diagnosis by Tech at BMW dealer. Simple replacement was quite expensive.

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  • Visitor, , 68,000 mi

    I had to have the thermostat, water pump, and coolant extension tank replaced all at the same time.

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  • Visitor, , 92,000 mi

    My thermostat needle was moving from even to hot (H) up and down as i drove. it stayed on hot for a few mins or until i stopped the car and turned off ignition and when i turned it back on it was fine. thought it was the thermostat sticking. It was fine for about a month and a half. Then started getting hot one day out of the blue. Once again the needle was not still for too long. This time went from H to C and back to H. Then finally overheated and turned off about 10 mins right when i got to a place i could pull over. We let it cool down and saw that it was out of water. We put water in it. It started and was fine for about 10 miles then overheated again. Pulled over again and filled up the radiator this time to the top. But car would not start back up. At the shop now.

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