Purpose and Specifications

ZF LifeguardFluid 5 (S671.090.170) is the original automatic transmission fluid designed specifically for ZF 4HP20 and 5HP transmissions in passenger cars. This 1-liter bottle delivers smooth, vibration-free shifting and maximum protection for transmission components, ensuring reliable performance in cold starts down to -51°C or hot conditions up to 220°C flash point.

It reduces wear, provides consistent friction for softer shifts, and maintains stable lubrication across extreme temperatures, helping your transmission last longer with less fuel consumption.

When to Use / Replace?

Use ZF LifeguardFluid 5 exclusively in ZF 4HP20 and 5HP automatic transmissions for optimal comfort and longevity. Replace every 60,000 to 100,000 km or 4-5 years, depending on driving conditions like towing or severe heat, to prevent slippage and overheating.

Shelf life is 5 years unopened when stored in a cool, dry place.

FAQ

Q: Is this fluid compatible with my transmission?
A: Yes, it's made for ZF 4HP20 and 5HP units, also meeting specs like MB 236.11 and VAG 052162.

Q: How much fluid does my transmission need?
A: Typically 6-9 liters total capacity; always check your service manual for exact fill amount.

Q: Can I mix it with other ATF?
A: No, use only pure ZF LifeguardFluid 5 to avoid shift issues or damage.