BMW 3 Series coolant loss - a know issue?
I currently own a 2013 BMW 320d, generally a great car. Now at 32k miles I have noticed the coolant has fallen below the min level (2k miles after its last service).
This also happened at 14k miles, which i topped up and had it checked at its 15k service. The system had no obvious leaks when checked by my BMW dealer.
With the car nearing 3 years old i am concerned it has a leak somewhere that is both very slow and hard to detect that will present itself once it is out of warranty and cause further problems. Are there any known issues with these cars?
This also happened at 14k miles, which i topped up and had it checked at its 15k service. The system had no obvious leaks when checked by my BMW dealer.
With the car nearing 3 years old i am concerned it has a leak somewhere that is both very slow and hard to detect that will present itself once it is out of warranty and cause further problems. Are there any known issues with these cars?
Asked on 20 December 2015 by Ed B
Answered by
Honest John
Car cooling systems often develop an airlock after the heater starts getting used again after spending the summer completely off. The airlock blows coolant out of the pressure cap on the reservoir. The cure is to start the engine from cold with the pressure cap off the reservoir and run it to temperature (to the electric fan coming on). That usually disperses any air in the system. Top it up with correct coolant, replace the cap and cross your fingers.
Tags:
coolant problems
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