Discovery 4 Automatic Gearbox ATF Mega Flush

We had a local farmer’s Discovery 4 workhorse in at JGS4x4 today for an automatic gearbox fluid flush.

Discovery 4 TDV6 ATF Flush

Over the past few weeks, we have worked our magic on lots of Discovery 3’s and Range Rover Sports with lumpy, notchy and juddery¬†gearboxes so it was nice to have a change with a Discovery 4 3.0 TDV6.

With 155,000 miles on the clock the fluid was burnt and blackened as expected, the owner has been having some unexpected behaviour from the normally silky smooth 6 speed ZF gearbox. There were several gearbox related faults stored in the ECU, these were noted and cleared before carrying out a complete fluid flush and change, we reset the gearbox adaptations and finally a test drive and another diagnostic code reading confirmed all seemed well again.

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