Purpose and Specifications

LIQUI MOLY Top Tec ATF 1950 21379 is a premium automatic transmission fluid in a 20-liter canister, specially formulated for Mercedes-Benz vehicles requiring MB 236.17 specification (also P004848). It delivers maximum performance with a powerful blend of active agents that ensure smooth shifting, reduce fuel consumption, and boost efficiency thanks to its low viscosity.

This oil excels in extreme conditions, maintaining perfect lubrication from -40°C cold starts to over 150°C high-heat operation, protecting transmissions in cars from 2003-2026 with 88-639 hp engines like C-Class, E-Class, Sprinter, and Vito models.

• Keeps shifts buttery smooth for responsive driving
• Lowers fuel use by reducing internal drag
• Stays fluid in freezing winters and thick under heavy loads
• Prolongs transmission life with superior wear protection

When to Use / Replace?

Use this for Mercedes automatic transmissions needing MB 236.17 approval during initial fill, service, or repair. Replace every 60,000-100,000 km or 4-5 years, or sooner if towing heavy loads, frequent stop-go traffic, or at signs of slipping shifts/hard engagement. Shelf life is 5 years unopened in cool, dry storage.

Ideal for workshops handling bulk services - one 20L canister covers multiple vehicles.

FAQ

Q: Is LIQUI MOLY 21379 right for my Mercedes?
A: Yes, if your model (2003-2026 C/E-Class, Sprinter, Vito) specifies MB 236.17 - check your manual or dipstick for confirmation.

Q: How often should I change this transmission fluid?
A: Every 60,000-100,000 km or 4-5 years under normal driving; inspect sooner for harsh conditions like towing.

Q: Does it work in cold weather?
A: Absolutely - flows easily down to -40°C for reliable starts and smooth operation in winter.