Vehicle: Discovery 4 TDV6
Recently we had a Discovery 4 come into the JGS4X4 garage with slightly clunky down shifts. We performed a
Gearbox Fluid Flush and also added some Dr Tranny Shudder Fix which is a friction modifier formulated specifically for INSTANTLY eliminating torque converter lock-up shudder. The old fluid that came out of the gearbox was very discoloured! We also reset the adaptions before the owner drove away a very happy customer.
The vehicle had 120,000 miles on the clock so it was well over-due some maintenance. We recommend a Gearbox Fluid Flush at around the 80,000 mark, as this is when they start to show signs of problems occurring. It is always beneficial to have a Gearbox Fluid Flush as a preventative measure rather than wait for the problems to arise.
This was the customers second Discovery he had owned. His first was a Discovery 3 that had done 270,000 miles before the bottom end of the engine started to knock. He kept driving it for several months before it finally went bang! He donated it to the local fire service so they could practice cutting it open for rescues!