Quick answer
The best coolant for Mercedes-Benz is the one named in the owner's manual. Below: 12 aftermarket products whose makers state a Mercedes-Benz code and 9 that only name Mercedes-Benz, with 9 checked buying links.
What to buy
Start with the genuine coolant your car maker sells, if your owner's manual calls for it.
Have a spec code from your manual? Look it up in coolant specs explained.
As an Amazon Associate I earn from qualifying purchases. Commissions never change which products we list or what the data says.
Key takeaways
- Mercedes-Benz approves coolants by sheet number in its Operating Fluids specifications.
- Match the Mercedes-Benz code; no single genuine listing.
- 12 aftermarket products list a Mercedes-Benz code.
- Codes from each maker's own page; products are not lab-tested by us.
What Mercedes-Benz specifies
Mercedes-Benz approves coolants by sheet number in its Operating Fluids specifications [1]. Per sheet 310.1, MB 325.0 (concentrate) and 326.0 (ready-mix) apply to passenger cars built up to April 2014, while 325.6 and 326.6 can be used for all vehicles, including later ones [2]. Mercedes says not to mix different MB specs, and calls for about 50% antifreeze, 55% at most [2].
Aftermarket Mercedes-Benz-code coolants (12)
Weaker matches: products that only name Mercedes-Benz
| Product | Form | Why it is listed | Buy |
|---|---|---|---|
| PEAK ORIGINAL EQUIPMENT TECHNOLOGY Antifreeze + Coolant 50/50 Prediluted for European Vehicles - BLUE PEAK · HOAT | Premix 50/50 | Names Mercedes-Benz | Check price on Amazon |
| PEAK ORIGINAL EQUIPMENT TECHNOLOGY Antifreeze + Coolant 50/50 Prediluted for European Vehicles - VIOLET PEAK · Si-OAT | Premix 50/50 | Names Mercedes-Benz | Check price on Amazon |
| PEAK ORIGINAL EQUIPMENT TECHNOLOGY Concentrate Antifreeze + Coolant for European Vehicles - BLUE PEAK · HOAT | Concentrate | Names Mercedes-Benz | Check price on Amazon |
| PEAK ORIGINAL EQUIPMENT TECHNOLOGY Concentrate Antifreeze + Coolant for European Vehicles - VIOLET PEAK · Si-OAT | Concentrate | Names Mercedes-Benz | Check price on Amazon |
| Prestone MAX European Vehicles (Blue) Antifreeze + Coolant Prestone · not published | not published | Names Mercedes-Benz | Check price on Amazon |
Next steps
Before you pour, check the level with the engine cold and avoid mixing chemistries; the mix calculator gives refill quantities. Full background, with each era of Mercedes-Benz coolant: Mercedes-Benz coolant guide. Also see Toyota and Honda.
As an Amazon Associate I earn from qualifying purchases. Commissions never change which products we list or what the data says.
Frequently asked questions
Which Mercedes coolant spec do I need?
Sheet 310.1 says 325.6 / 326.6 can be used for all vehicles, while 325.0 / 326.0 cover cars built up to April 2014. Check your service book.
Can I mix MB 325.0 and 325.6 coolant?
Mercedes-Benz says not to mix different MB coolant specifications.
Next step
Not sure which coolant to buy? Match the spec code in your owner's manual, then buy the coolant that lists it.
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