Thread: Whining D3

Originally Posted by bucket-918

Also when the tyres were fitted, the tyre place wanted to do a wheel alignment which necessitated going back to LR dealer to have some part of the suspension/traction control turned off & then turned back on afterwards.

Set the suspension ecu to tight tolerance mode to maintain heights closer to the target height than is necessary for normal use. This mode operates the compressor more frequently so only used when there's a benefit. IMO LR should have made it selectable from a service menu rather than requiring the use of a diagnostic m/c.

A quick update on the diff whine.....

Took the car to a transmission specialist who found that the front diff only had 1/2 a litre of oil instead of expected amount (about 2 1/2 lts) & that the back diff, although being the correct level, was absolutely black.

They believed that the diff plugs had never been removed since new & consequently, had never been checked. Small amounts of metal particles were also found in the front diff on the magnetic part indicating permanent damage to the crown wheel & pinion thus explaining the whine. Additionally, he has concerns that the bearings may have been permanently damaged by the lack of oil & may feel in the future.

With the slow loss of oil, when the oil no longer met with the mechanicals, the whine suddenly started rather than over with natural wear & tear over 100's of thousands of klms.

The car has had all the required services through the LR dealer & has had the booked stamped accordingly. It is at 102,000 k's so the diffs should have have been checked at least a few times.

To say I am ****ed off is an understatement. I am gathering my info together & will be taking this to the local LR dealer.

I took the car to the transmission specialist as I didn't trust the LR dealer to do the work properly (based on passed experience) & this finding seems to firmly support my concerns!

There is aknown issue with the diffs, particularly the front. Diff oil contaminated by the coating used on the case causing seals to fail and oil to weep. They should have noticed damp patches and checked the levels at least.

Rob,
So do I win a cupie doll for correct diagnosis?

I'm pretty sure they don't replace the oil in the diffs and transfer case until the 120k km service.
Cheers,
Rob