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When I was cleaning my GLC over the weekend I noticed some white residue over the coolant tank and around the caps. Not sure if this is something I should just clean or shall I contact the dealer? My car is out of factory warranty but have the 1 year CPO warranty.
2016 GLC 250d AMG pack, 2017 GLC Coupe 250d AMG pack , 2002 BMW 330Ci convertible, 2021 BMX X1 sD20i
Cap not tightened to next locking point my guess.
There is a slight turn that does final pressure lock.
If already locked, then residue is visual remanent of coolant that has evaporated due to engine heat.
This happened to ours after dealer serviced it and did not clean up after small spill.
Check level in tank when car cold, do not open when hot.
Make sure to apply some wrist effort when closing.
Good luck.
Last edited by Teckno; May 19, 2021 at 05:00 AM.
Reason: Spell
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