Car Problem Reports

BMW 325i Check Engine Light and/or Engine Overheating

BMW 325i Problem
30 Reports
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Model Years Affected: 1995, 2001, 2002, 2003, 2004, 2005, 2006

Average Mileage: 110,001 mi (52,000 mi - 190,000 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.

  • , , 164,000 mi

    Car was over heating so I bought a new water pump and thermostat on eBay for $400, followed the instructions on YouTube and managed to fix the problem myself.

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  • , , 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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  • , , 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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  • , , 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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  • , , 112,000 mi

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

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  • , , 118,000 mi

    Overheating light only comes on when its cold outside. If you cut the car off it and wait a few minutes it stays off?
    Then today one of the hoses blew off and I had it towed to the repair shop.

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  • , , 89,000 mi

    Temp light flashed, then red, as I attempted to pull off freeway radiator busted

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  • , , 90,000 mi

    thermostat failed causing check engine light. replaced thermostat

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  • , , 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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  • , , 112,723 mi

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

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