Coolant spec Mercedes E-Class W212 (2009–2016) — type, volume, change interval
Which coolant to use in Mercedes E-Class W212 (2009–2016) — type, colour, system volume and replacement interval.
Cooling System Specifications
| Parameter | Value |
|---|---|
| Make / Model | Mercedes E-Class W212 |
| Production Years | 2009–2016 |
| Coolant type | MB 325.0 |
| Colour | blue |
| System volume | 10.0 L |
| Mix ratio | 50/50 (concentrate / water) |
| OEM approval | MB-Approval 325.0 |
| Replacement interval | every 3 years |
Coolant replacement is time-based, not mileage-based. Corrosion inhibitors degrade over time regardless of how far you drive.
Approved Coolant Brands
Mercedes Genuine / Febi G11 blue / Liqui Moly KFS G11
Mixing Rules
- Do not mix different coolant types (G11/G12/G13) — mixing causes a chemical reaction and sludge formation.
- When topping up, use the same type: MB 325.0.
- Always dilute concentrate with distilled water at a ratio of 50/50.
- Freeze protection at 50/50 mix: approximately –37°C.
Checking Coolant Level and Condition
- Check the level in the expansion tank on a cold engine — it should be between MIN and MAX marks.
- Fresh MB 325.0 coolant is blue. Brown, cloudy or sediment-filled coolant must be replaced immediately.
- Hydrometer test: density at 50/50 mix should be 1.060–1.080 g/cm³.
FAQ
Which coolant should I use in Mercedes E-Class W212?
Type MB 325.0 (blue), approval MB-Approval 325.0. Compatible brands: Mercedes Genuine / Febi G11 blue / Liqui Moly KFS G11.
How much coolant does a Mercedes E-Class W212 hold?
The total cooling system volume is 10.0 L. A partial change will require less — calculate based on the volume drained.
How often should coolant be replaced in Mercedes E-Class W212?
Every 3 years, regardless of mileage. Do not delay — depleted coolant causes corrosion of aluminium engine components.
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