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      01-16-2026, 05:36 PM   #1
2487sam
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White smoke?

Hi gents

I’m getting quite a bit of white smoke out of the exhausts recently. Checked the coolant which measured low and probably had to to top up around 1.5L.

(Confident it’s not oil)

Charge cooler res level is ok.

Anyone experienced similar issues?
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      01-16-2026, 06:13 PM   #2
afadeev
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Quote:
Originally Posted by 2487sam View Post
I’m getting quite a bit of white smoke out of the exhausts recently. Checked the coolant which measured low and probably had to to top up around 1.5L.
(Confident it’s not oil)
Charge cooler res level is ok.
Anyone experienced similar issues?
Possibility #1: you have a massive coolant leak at any of the usual places where plastic/rubber components degrade:
  • charge cooler
  • water pump
  • thermostat housing
  • clacked expansion tank/coolant reservoir cracking at seams
  • coolant hoses got permeated by oil leaking from oil filter housing, and now seap coolant

Possibility #2: your car has elected BMW pope!

HTH,
a
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      01-17-2026, 07:58 AM   #3
2487sam
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Checked the oil cap today and found that the water has been mixing with the oil.
Time to book it in I think
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