Purpose and Specifications

RAVENOL ATF D971 1211139-020-01-999 is a premium synthetic automatic transmission fluid designed for Mercedes-Benz 9-speed 9G-Tronic transmissions. It meets strict MB 236.16 and MB-Freigabe 236.17 approvals, matching OEM part Mercedes A 002 989 06 03, delivering smooth shifts and maximum wear protection in all driving conditions.

This mid-class fluid flows easily at cold winter starts down to -40°C for quick engagement, stays thick and protective up to 150°C under heavy loads, and resists breakdown for reliable performance in daily commutes or high-speed highway runs.

When to Use / Replace?

• Use in: Mercedes vehicles with 9G-Tronic automatics like newer E-Class, S-Class, and SUVs for friction-optimized shifting and long transmission life.
• Replace every 60,000-100,000 km or 4-5 years, or sooner if towing heavy loads or in extreme heat/cold to prevent slipping or harsh shifts.
• Shelf life: 5 years unopened in cool, dry storage.

FAQ

Is this a direct OEM replacement? Yes, fully approved to MB 236.17 spec, equivalent to Mercedes A 002 989 06 03 for 9G-Tronic transmissions.

Can I mix with other ATF? No, for best results drain fully and refill with RAVENOL ATF D971 only to avoid compatibility issues.

What volume per service? Typically 7-9 liters for a full flush on most Mercedes 9-speed models; check your service manual.