my 2017 RR Sport just been in for it's second service at 20,000, Dealer has reported a "heavy oil leak from diff pinion seal. Requires diff rebuild "


Should i be very worried ? luckily under warranty but with all the oil issues and dilution problems etc it's a concern.

fairly common on the L494, but they should replace it - there's a kit from LR that they need to order --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport Supercharged V8 HSE Dynamic



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

Mine had just such a leak - they replaced the whole diff. MY2016 HSE D SDV6 - gone due to fuel dilution problems.

By the age of 50 you have the face you deserve - George Orwell.

Mine went in last week for the diff leak under warranty. Andy.
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Mine went a year ago at 31K, they replaced the seal under warranty with the aforementioned kit from LR.Took about 4hrs. not a weep since.

+1 had my rear diff seal done a few weeks ago under warranty. No replacement / sounds like they applied the LR repair kit.

Prashan MY16, 3.0D HSE Dynamic, Barola Black, TV, Rear Entertainment, Opening Pan Roof, Meridian

An update on this: the rear diff started whining after the car was standing for 3 weeks.

The head mechanic also heard it as soon as we went for a test drive, and he reckons the slight oil loss might have caused some damage to the bearings.

This repair/replacement will be covered by the service plan.  --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport Supercharged V8 HSE Dynamic



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

Just heard back from the dealership - it is indeed the rear diff, and they have to motivate to HQ to get a replacement one --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport Supercharged V8 HSE Dynamic



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

Car just gone in for its 3 year service. Diff pinion seal oil leak reported again !! 11 months since they last fixed the same issue. Not happy about it ! surely these fixes are supposed to last

fokit man, that sucks!

Mine was done in Oct 2019, then the rear diff started whining in Nov and had to be replaced.

I hope it doesn't happen again because now my car is out of service plan! --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport Supercharged V8 HSE Dynamic



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

darn it, just came back from a 400km drive, and I am hearing that dreaded high-pitch whine again.

but this time it doesn't seem to be coming from the back but more from the front right of the car.

And I have a long road trip in 2 weeks' time  --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport Supercharged V8 HSE Dynamic



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

TheGoodWillOut wrote:

Car just gone in for its 3 year service. Diff pinion seal oil leak reported again !! 11 months since they last fixed the same issue. Not happy about it ! surely these fixes are supposed to last