Symptoms
Slow or harsh shifts, fluid weeping from the valve-body connector sleeve, or a high-mileage 'sealed for life' gearbox that has never been serviced.
The fix, step by step
- Drop the pan with its integral filter, replace the leak-prone valve-body sleeve, fit a new pan and gasket, and refill with ZF Lifeguard fluid to the correct level.
- Atlantic British recommends doing it every 60,000 miles.
- Some owners also fit new valve-body 'bridge' seals as preventive maintenance.
Tools & part numbers
- Atlantic British kit TRANSM300SKA (pan, sleeve, 7 qt ZF Lifeguard)
- fluid pump
- torque wrench
- scan tool for fluid temperature
Where to buy the parts
Hunting a used or discontinued part? Search eBay Motors for Land Rover Range Rover L322 parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.