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      10-21-2017, 01:32 PM   #363
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Drives: F21 118i
Join Date: Oct 2014
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Quote:
Originally Posted by pawelspolnicki View Post
Hi guys,

I have 116 petrol 2012 with 30000 Miles on The clock.
I just have noticed that I’m losing engine coolant.
In last month I had to top up 3 times.
I don’t see any leaks. I also have replaced the radiator cap but still the same.
That’s any one of you had similar problem.
Hi,

Reportedly, most frequent, least noticeable and easiest/cheapest to fix leak source is this thing: coolant temperature sensor. More specifically, it's the sealing o-ring (green)



to be replaced, not even the sensor itself.
Appreciate 0