Originally Posted by
Graeme
To clarify, is the left and right when sitting in the driver's seat looking forwards or looking at the engine from the front of the vehicle? The right side of the engine is normally when viewed from the rear of the engine, not from the front.
For at least the first couple of years the 4.4 in the L405 had a problem with oil leaking from the wiring harness for the oil level sensor which made its way into the right turbo's electronics usually requiring the turbo to be replaced as well as the wiring to the sensor, although now a short loom is available that prevents oil travelling to the turbo. I wonder if this is the problem with your vehicle.