Automatic Gearbox Easy Change Filter Kit with Liqui Moly Top Tec 1800 ATF for Range Rover Sport L320

The ZF 6HP26 6-speed automatic gearbox fitted to the Range Rover Sport L320 was originally described as “sealed for life”. In real-world driving conditions however, transmission fluid gradually degrades over time due to heat cycles and normal wear.

As the fluid deteriorates it loses lubrication properties and can lead to reduced gearbox performance. Common symptoms include torque converter judder, delayed gear engagement, slipping between gears and harsh shifting.

This premium gearbox service kit includes a metal easy-change sump conversion together with high quality Liqui Moly Top Tec 1800 automatic transmission fluid, allowing a proper gearbox service without the complex procedure normally required to replace the original integrated plastic sump filter.

The factory sump incorporates the gearbox filter, meaning replacement normally requires lifting the engine and removing surrounding components. This easy-change conversion kit replaces the original plastic sump with a durable metal pan and a separate replaceable filter, making future gearbox servicing far easier.

Common symptoms of degraded automatic gearbox fluid

• Torque converter shudder or vibration during light acceleration
• Harsh or delayed gear changes
• Gear slipping or hesitation
• Noisy transmission operation
• Poor shift quality when cold or hot

If your Range Rover Sport is experiencing any of these symptoms, servicing the transmission fluid and filter can often restore smoother gearbox operation.

Kit contents

• Easy-change metal transmission sump pan
• Separate replaceable gearbox filter
• Gearbox sump gasket
• Complete set of replacement sump bolts
• 7 litres Liqui Moly Top Tec 1800 automatic transmission fluid

The 7 litres of ATF included allows a double drain and refill process, helping replace a greater percentage of the old fluid during servicing.

Easy-change sump conversion process

1. Drain the transmission fluid and remove the sump bolts.
2. Carefully cut the plastic filter neck on the original sump.
3. Remove the original plastic sump pan.
4. Install the new separate filter.
5. Fit the metal sump pan with the supplied gasket and bolts.
6. Refill the transmission following the correct ZF gearbox filling procedure.

Vehicle compatibility

Range Rover Sport (L320) 2005-2012
ZF 6HP26 6-speed automatic gearbox only

This kit is not suitable for vehicles fitted with the later 8-speed automatic transmissions.