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W205 C300 Coolant Low

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Old 12-27-2021, 02:09 PM
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W205 C300, W212 E350, Q50
W205 C300 Coolant Low

Coolant low message popped up. low level == leak. It was really low at only 27k miles/4.5 year. I remember i've checked all fluid level at 20k miles. Engine oil looked fine, no visible external leak found. I have to monitor it from now on. It's annoying.

Pics or it didn't happen? Ok, here is the photo. Check your coolant level. The top of the white vertical wing should be submerged in coolant. Coolant spec is 325.5(concentrated)/325.6(diluted) such as OEM Q1030005(concentrated), Q1030006(50:50 diluted), or Valvoline Zerex G40. Color is violet (pink).



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Darrington (12-28-2021)
Old 12-27-2021, 03:58 PM
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1999 E300TD
So whats your point!!
Old 12-27-2021, 08:01 PM
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2021 c300 Cab. Arrived 7/28/21 Arriving soon. 24 GLE 450e.
Originally Posted by Plutoe
So whats your point!!
I guess the point is to check your coolant.
Old 12-29-2021, 09:39 PM
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2017 Mercedes-Benz C300, 2017 Mercedes-Benz GLC300
I had the same issue. Dealer told me it was normal on these cars.

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