Gearbox oil Mercedes C-Class W205 7G-Tronic — viscosity and OEM spec
Gearbox oil for Mercedes C-Class W205 7G-Tronic (2014–2021) — correct viscosity, OEM specification, fill volume and change interval.
Gearbox Specifications
| Parameter | Value |
|---|---|
| Make / Model | Mercedes C-Class W205 |
| Gearbox type | automatic |
| Gearbox code | 7G-Tronic |
| Production Years | 2014–2021 |
| Oil viscosity | ATF |
| OEM specification | MB 236.14 |
| Fill volume | 8.5 L |
| Change interval | 40000 |
“Lifetime” fill in DSG and CVT gearboxes does not mean never change the oil — manufacturers recommend changing every 60,000 km to preserve gearbox life.
Approved Oils for 7G-Tronic
Mercedes-Benz ATF / Liqui Moly Top Tec ATF 1200 / Febi MB
Automatic Gearbox — Key Points
Automatic gearbox: A standard drain-and-fill replaces ~60% of the fluid. Full flush with a flush machine is recommended every 80,000–120,000 km.
FAQ
What oil goes in Mercedes C-Class W205 7G-Tronic?
Viscosity ATF, specification MB 236.14, volume 8.5 L. Suitable brands: Mercedes-Benz ATF / Liqui Moly Top Tec ATF 1200 / Febi MB.
When should the gearbox oil be changed on Mercedes C-Class W205?
Every 40000 km.
Can I use a universal ATF instead of MB 236.14?
No. The 7G-Tronic requires strict compliance with MB 236.14. A universal ATF lacks the correct friction characteristics and will cause premature wear.
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