Purpose and Specifications

ZF 5961.308.591 is the genuine ZF LifeguardFluid 7.4 DCT automatic transmission fluid, sold in 1-liter bottles. It's specially formulated for DQ 250, DQ 500, and DQ 400E dual-clutch transmissions in VW, Audi, Seat, and Skoda vehicles from 2001-2026 with engines 90-620 hp.

This premium fluid ensures smooth, reliable shifting by protecting clutches and gears under extreme conditions. It stays fluid in cold starts down to -40°C for quick engagement and maintains thickness up to 150°C during heavy towing or racing, preventing wear and overheating.

• Volume: 1 liter per bottle – perfect for partial or full service fills
• Shelf life: 5 years unopened when stored cool and dry
• Replacement interval: Every 60,000 km or 4 years for daily drivers; 40,000 km for heavy use

When to Use / Replace?

Use this fluid for service kits like ZF 5961.308.602 on 7-speed dual-clutch transmissions. Replace if you notice harsh shifts, slipping, or warning lights – common after 60,000 km. Ideal for high-mileage cars in hot climates or stop-go traffic where heat builds up fast.

Practical tip: Drain and refill uses about 4-6 liters total; always check your model's spec for exact amount.

FAQ

Q: Is this fluid compatible with my VW DSG?
A: Yes, it meets VW G 052 182 and TL 52 182 specs for DQ 250, DQ 500, DQ 400E – don't mix with other types to avoid damage.

Q: How often should I change it?
A: Every 60,000 km or 4 years; sooner if towing or in extreme heat to keep shifts crisp.

Q: Can I use it in older transmissions?
A: Only for listed DQ codes from 2001+; check your transmission code first.