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Anonymous
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Good man jeeper car will thank you for it
cj10jeeper
New member
Beltupandholdon said:
Agreed - preventative maintenance is always a good idea. Also fitted a new brake pad wear sensor that was loose. Supercharger is next when I get the oil
Been a good week as passed the MOT with the 7th straight pass and no advisories in the history, aside a couple of tyre near limit warnings before ownership time
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Anonymous
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cj10jeeper said:Did the change myself this morning. Nothing too it really, but the write up was useful to prepare me. Thanks to those who posted photos, sizes and fluid capacities
Lowered the car to ground level and a lot more oil drained out than when jacked up, so worth it. Also being so cold it took a good while to drain, so took a coffee break
For the fill plug they may have changed the design as mine is located rear side of the driveshafts and has zero room for extension bars between it and the subframe members. 8mm hex bit in a magnetic holder and a ratchet ring spanner made light work of it
Overall at 7 years and 55k it was worthwhile as the oil was like treacle, so feel much happier now done
I’ve got the oil and plugs ready to go, strange that the design has changed. The photos I posted were from my RWD V6. Good to hear that lowering the car helped to extract more oil, I was in 2 minds whether it would make much difference. Did you use new plugs? You can see from the photo below that there is some sort of white sealant on the threads.
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Anonymous
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cj10jeeper said:Beltupandholdon said:
Agreed - preventative maintenance is always a good idea. Also fitted a new brake pad wear sensor that was loose. Supercharger is next when I get the oil
Been a good week as passed the MOT with the 7th straight pass and no advisories in the history, aside a couple of tyre near limit warnings before ownership time
Supercharger oil change is so easy on the v6 , I was happy draining it out then topping it back up but others might be more fussed than me sa some like the diff oil change old oil will remain in gallery's , no problem I say do it again next year its that easy
RPSN
New member
cj10jeeper said:Did the change myself this morning. Nothing too it really, but the write up was useful to prepare me. Thanks to those who posted photos, sizes and fluid capacities
Lowered the car to ground level and a lot more oil drained out than when jacked up, so worth it. Also being so cold it took a good while to drain, so took a coffee break
For the fill plug they may have changed the design as mine is located rear side of the driveshafts and has zero room for extension bars between it and the subframe members. 8mm hex bit in a magnetic holder and a ratchet ring spanner made light work of it
Overall at 7 years and 55k it was worthwhile as the oil was like treacle, so feel much happier now done
Always helps to have some good info beforehand, including lowering the jacked up car to ground level in order to drain more oil out of the diff. I also used to do this when changing the engine oil on my cars, up until I bought an electric oil pump to suck the oil out from the top of the engine, which is much easier. Doesn't sound like you warmed up the diff oil (by taking the car out for a drive) before doing the job, as the oil would have drained better.
Here’s another early V6S (2014) which has the rear diff oil filler plug located in the same position as yours i.e. towards the rear side of the diff (behind the driveshaft) https://www.ftypeforums.co.uk/viewtopic.php?f=27&t=4160 .On my 2016 model it’s located towards the front side of the diff (in front of the driveshaft), so Jaguar has changed the design.
Sounds like you did the job just in time as the old oil was like treacle. You can understand why some owners change the diff oil more frequently.
cj10jeeper
New member
AJ13 said:
I used Motul Gear 300 LS 75w-90 Fully Synthetic Racing Limited Slip Differential Oil - 1 Litre from Opie Oils. Use code WELCOME15 and it works out at £22 inc. postage
cj10jeeper
New member
RPSN said:cj10jeeper said:Did the change myself this morning. Nothing too it really, but the write up was useful to prepare me. Thanks to those who posted photos, sizes and fluid capacities
Lowered the car to ground level and a lot more oil drained out than when jacked up, so worth it. Also being so cold it took a good while to drain, so took a coffee break
For the fill plug they may have changed the design as mine is located rear side of the driveshafts and has zero room for extension bars between it and the subframe members. 8mm hex bit in a magnetic holder and a ratchet ring spanner made light work of it
Overall at 7 years and 55k it was worthwhile as the oil was like treacle, so feel much happier now done
Always helps to have some good info beforehand, including lowering the jacked up car to ground level in order to drain more oil out of the diff. I also used to do this when changing the engine oil on my cars, up until I bought an electric oil pump to suck the oil out from the top of the engine, which is much easier. Doesn't sound like you warmed up the diff oil (by taking the car out for a drive) before doing the job, as the oil would have drained better.
Here’s another early V6S (2014) which has the rear diff oil filler plug located in the same position as yours i.e. towards the rear side of the diff (behind the driveshaft) https://www.ftypeforums.co.uk/viewtopic.php?f=27&t=4160 .On my 2016 model it’s located towards the front side of the diff (in front of the driveshaft), so Jaguar has changed the design.
Sounds like you did the job just in time as the old oil was like treacle. You can understand why some owners change the diff oil more frequently.
Diff was slightly warmed with a short drive, but wasn't going to ever get hot in 5c temps. and by the time the exhaust cools down to access things it's all back to near normal temp...
Agree - def. changed the design from what's pictured on this thread. Access to the rear mounted plug is very hard and there's no possible access along the driveshaft as there's a solid bracket blocking it. Thin fingers, no gloves and and a creative bit/spanner set up is needed. Would be an easy and sensible factory change based upon real world feedback to drill the casing at a more convenient point.
I'd certainly advocate the 50k mileage point as the upper end to change it, especially if planning to track it or push to the limits...
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Anonymous
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Same here jeeper 75w90 from opie oils but I paid 30 odd , they have good deals on the now for service kits and 0w20 to spec
cj10jeeper
New member
Frankly it frustrates me that places can’t simply give a price and stick with it.Beltupandholdon said:
B&Q is my biggest moan. Each time I spend they send me a voucher redeemable next time I shop and usually for just a bit more than I spent before and expiring In 7 days..
In general shops seem to spend more time telling me what I’m saving, usually against an inflated start price, rather that what I actually have to pay
Rant over…
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Anonymous
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I still have my trade card for b&q but seldom shop there I use screwfix now and find them cheaper , both are owned by the kingfisher group
cj10jeeper
New member
I'm a Screwfix trade customerBeltupandholdon said:
However, they don't sell a lot of stuff that B&Q do at sometimes bargain prices from timber to paint, some plants to bagged compost. All the stuff I need for a new home
RPSN
New member
cj10jeeper said:
The Motul Gear 300 LS 75w-90 Fully Synthetic Racing LSD Oil from Opie Oils is good stuff. I went for the recommended Castrol BOT720 which I picked up from the main dealer for just over £35.
cj10jeeper said:
Preferably, the diff oil should be warm but even if it's slightly warmed, that’s better than it being cold and will help with draining.
Jaguar may have changed the location of the diff oil filler plug for easier access? Not sure if your car has a slightly different set-up to the 2014 V6S in the link I provided earlier https://www.ftypeforums.co.uk/viewtopic.php?f=27&t=4160 in which the OP, who has the same filler plug location as you said.....”To access and remove the plug I used a 5/16 hex drive, on a 3/8 long extension and ratchet. If you feed the long extension along the rear of the drive shaft, you can get on the fill plug and undo it.”
The Jaguar service schedule for the LSD oil change on my car is 64000 miles / 48 months. However, I’ve pencilled in 25000 miles / 48 months (whichever comes first). It’ll work out the same for now as I’m currently doing around 3000-4000 miles per year.
Something I also do in-between this service period to check the diff oil consistency/viscosity, is to slightly loosen the drain plug until the oil starts to show, then take a sample with my finger before retorquing the plug.....Gives me peace of mind.
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Anonymous
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Just to close off this thread, I have had my car serviced now and collected it yesterday. Their tech noticed an occasional unusual noise from the rear diff during the test drive and JLR have authorised a replacement diff under warranty - so I guess the oil change will be free! 
They told me the car is still fine to drive whilst they now wait to get hold of the new diff.
They told me the car is still fine to drive whilst they now wait to get hold of the new diff.mickjaguar
New member
good result! I paid £150 for the rear diff oil to be changed at the last service (20,000) miles. But similarly, they noticed the front diff had leaking seals, which was also fixed under warranty at the same time. Two for the price of one
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Anonymous
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mickjaguar said:
I paid £150 for the rear diff oil to be changed at the last service (20,000) miles. But similarly, they noticed the front diff had leaking seals, which was also fixed under warranty at the same time. Two for the price of one
So did you get a new diff or just fixed oil leak? Sounds like a good result either way! I’m a little worried about how long I’ll have to wait for the new diff as planning a trip in Europe in a couple of months….
mickjaguar
New member
I think it might have just been new oil seals, as the 'parts' were there by the next day. Fingers crossed the new diff will turn up fairly quickly. I asked the parts guy about non-opf cats recently and he said they could be got in for next day. It seems some parts don't have any delays.
2016 Jaguar F type V6 S AWD coupe
Schedule service completed
80,000 miles/60 months service
Related service items
Renewal of oil and oil filter
Electronic vehicle health check
Renewal of spark plugs
Renewal of transfer case fluid
Renewal of front differential fluid
Renewal of rear differential fluid
Plus service items
On Wednesday I paid £715 for this 5 year service from my local Jaguar dealer. I think this is great value for £
Stratstone
Houghton Le spring
Stoneygate
DH4 6HZ
Schedule service completed
80,000 miles/60 months service
Related service items
Renewal of oil and oil filter
Electronic vehicle health check
Renewal of spark plugs
Renewal of transfer case fluid
Renewal of front differential fluid
Renewal of rear differential fluid
Plus service items
On Wednesday I paid £715 for this 5 year service from my local Jaguar dealer. I think this is great value for £
Stratstone
Houghton Le spring
Stoneygate
DH4 6HZ