CL55 AMG, CL65 AMG, CL63 AMG (C215, C216) 2000 - 2014 (Two Generations)

What color of coolant?

Old Dec 18, 2023 | 04:15 PM
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From: CZ
2007 CL 63 AMG (M156), 2004 FL W203 220CDI (OM646)
What color of coolant?

Hi guys,

this august i bough a 2007 CL63 AMG (M156). I remember there was a blue coolant. Last month my radiator broke and all the coolant leaked out. Now the shop put a new radiator but they put a pink coolant and said, the car should have this one. Searching the internet, all photos seem to have the blue one. Should I keep the pink one or change it? Which one do you use?

Thanks
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Old Jan 8, 2024 | 12:43 PM
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kpuri's Avatar
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190E 2.3-16v | C43 | CL63
In 2007 factory fill was Specification MB 325.0/326.0 (Blue HOAT Coolant).
Approx 2014 MB325.5/326.5 became standard (Pink Si-OAT Coolant).
Pre-2014 engines in the table below can run the newer Pink Coolant but it takes FULL system flush and refill (don't mix Blue and Pink)

325.6/326.6-Compatible Engines (2014-Present):

  • M111/112/113
  • M133
  • M137
  • M139
  • M15X
  • M176
  • M177
  • M178 (AMG GT Black Series Excluded)
  • M254
  • M256
  • M260
  • M264
  • M266
  • M27X
  • M282
  • OM607/608
  • OM611/612/613
  • OM622.8
  • OM622.9
  • OM626
  • OM628/629
  • OM639
  • OM640
  • OM642
  • OM653
  • OM654
  • OM656
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Old Jan 8, 2024 | 12:48 PM
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2007 CL 63 AMG (M156), 2004 FL W203 220CDI (OM646)
Thanks for the info! I installed a new radiator. Do you know if there are any benefits to the pink one instead of the blue one? Any recommendation - stick to the blue one or use the pink one because it offers better results?
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