C400: Coolant change procedure?
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2015 C400 4MATIC Palladium Silver Metallic
C400: Coolant change procedure?
Has anybody done this DIY? It seems like the MB spec'd procedure is ridiculously complicated for the sake of avoiding air locks (which I admit is admirable...sorta).
Does anyone have a simpler "drain and refill" technique?
Does anyone have a simpler "drain and refill" technique?
Thread Starter
Senior Member
Joined: Mar 2022
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2015 C400 4MATIC Palladium Silver Metallic
If you go to the manufacturer website of pretty much any pink HOAT coolant, they specify 5 years or 150,000 miles, whichever comes first.
My wife's car has never had the coolant replaced and it's a 2015, so it's overdue, even though it has 93,000 miles.
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Joined: Mar 2018
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From: Central Florida
'15 C400 and '15 ML350
Change interval isn't *ONLY* mileage based.
If you go to the manufacturer website of pretty much any pink HOAT coolant, they specify 5 years or 150,000 miles, whichever comes first.
My wife's car has never had the coolant replaced and it's a 2015, so it's overdue, even though it has 93,000 miles.
If you go to the manufacturer website of pretty much any pink HOAT coolant, they specify 5 years or 150,000 miles, whichever comes first.
My wife's car has never had the coolant replaced and it's a 2015, so it's overdue, even though it has 93,000 miles.
shows 155k miles or 15 years for c class coolant change. 100k id prob consider changing mine since i want max performance, but im only at 62k so i have some time. The wifes ML has 110k and i dont plan on changing it.
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Joined: Mar 2022
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2015 C400 4MATIC Palladium Silver Metallic
https://www.mbusa.com/vcm/MB/Digital...nce_manual.pdf
shows 155k miles or 15 years for c class coolant change. 100k id prob consider changing mine since i want max performance, but im only at 62k so i have some time. The wifes ML has 110k and i dont plan on changing it.
shows 155k miles or 15 years for c class coolant change. 100k id prob consider changing mine since i want max performance, but im only at 62k so i have some time. The wifes ML has 110k and i dont plan on changing it.
G-40 coolant is a lot cheaper than a radiator or water pump.
I'll change mine at 5 years like the BEVO authorized fluid makers recommend. Here in Maryland our annual highest and lowest ambient temps have a +90F range so I'd prefer the additive pack and heat transfer/anti-freeze properties be at their optimal level.
