View Single Post
      01-21-2019, 07:55 AM   #62
Zap-xpilot
Private First Class
Sweden
89
Rep
124
Posts

Drives: BMW M3 ZCP 2017, 540ix 18 G31
Join Date: Apr 2017
Location: Stockholm

iTrader: (0)

Garage List
Quote:
Originally Posted by 2blu View Post
Had this issue on my 2016 B58 340, cracked radiator was leaking minimally at first and tremendously as time went on (would pour coulant in and a puddle would appear under the car as I poured).

On my 2018 B58 540 with 6000km had the coolant light come on once a week over last three weeks, went to check the coolant level under the hood and the cap was loose so I assume it was slowly evaporating. Topped it off and now keeping an eye on it.
That's both interesting and worrisome. Regarding the cap - mine is so tight that I really have to grip with both hands and push until what it feels like a vein will pop. I am usually told that my grip is quite strong but the way this cap sticks is something else.

After turning loose there is a detent, perhaps after 7-10 degrees and it will barely budge over that. Wonder if this is a sign that I should clean it somehow?
Appreciate 0