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      07-06-2018, 06:25 PM   #337
maddmatth
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New Zealand
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Drives: F82 M4, E92 335i
Join Date: Jun 2015
Location: New Zealand

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Quote:
Originally Posted by katatonia View Post
Also my coolant level goes down a bit every few thousand km, dunno why. I just keep refilling and it seems k
For me this persisted after a new water pump, thermostat and coolant cap. I could see stains around the coolant cap area sometimes

Workshop finally decided it had to be something in the engine, opened it up and found one of the headbolts was loose.
It was a huge job, engine had to come out. Luckily I had an aftermarket warranty to cover most of the cost.
Must have been a factory fault that the last owner ignored.

Now 1 year on and 10 000km, no coolant light yet...

I'm at 160 000km now.
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