Purpose and Specifications

MOTUL 103993 is a premium automatic transmission fluid engineered for modern automatic gearboxes, transfer cases, and power steering systems. This 20-liter canister meets Mercedes-Benz MB 236.9 manufacturer approval, ensuring compatibility with high-performance automatic transmissions that demand precise hydraulic control and smooth gear engagement.

This synthetic-based fluid reduces friction in your transmission, which means better fuel economy, smoother shifts, and faster response when you accelerate or change gears. It protects heavily loaded gears and bearings from wear while resisting heat breakdown and oxidation—critical for transmissions that operate under constant pressure.

When to Use / Replace?

Replacement Interval: For automatic transmissions, change the fluid every 60,000 to 100,000 kilometers (approximately 3 to 5 years of normal driving), depending on your vehicle manufacturer's recommendations and driving conditions. Check your owner's manual for your specific vehicle.

Operating Temperature Range: This fluid performs reliably between -20°C and +100°C, ensuring quick oil flow during cold starts and stable protection during highway driving.

Signs You Need a Change: If your transmission fluid appears dark brown or black (instead of bright red) or smells burnt, it's time for a fluid change. Dark fluid indicates the oil has degraded and lost its protective properties.

Storage: Keep unopened containers in a cool, dry place. Shelf life is typically 3 to 5 years when stored properly away from direct sunlight.

Key Benefits

• Reduces friction for improved fuel economy in automatic transmissions
• Delivers smoother, faster gear shifts with minimal lag
• Protects gears, bearings, and hydraulic components from wear and corrosion
• Resists heat breakdown and oxidation for extended fluid life
• Prevents transmission shudder and vibration during engagement
• Meets strict Mercedes-Benz MB 236.9 performance standards

Frequently Asked Questions

Q: Can I mix MOTUL 103993 with other transmission fluids?
A: No. Always use the same fluid type specified in your owner's manual. Mixing different transmission fluids can reduce protection and cause shifting problems. If you're switching fluids, a complete fluid flush is recommended.

Q: How do I check my transmission fluid level?
A: With the engine running and transmission in Park (on level ground), locate the transmission dipstick, pull it out, wipe it clean, reinsert it fully, then pull it out again to read the level. The fluid should fall between the minimum and maximum marks. Check the color too—bright red means it's fresh; dark or burnt-smelling fluid needs changing.

Q: Is this fluid suitable for my vehicle?
A: MOTUL 103993 is approved for Mercedes-Benz vehicles requiring MB 236.9 specification. Always verify your vehicle's transmission fluid requirement in the owner's manual before purchasing. Using the wrong fluid can damage your transmission.