Cost of Diff oil change

[Anonymous]

Hi all, my car is coming up to two years old and due it’s second service. I asked the dealer how much it would be to change the rear diff oil (P380 RWD LSD) and he has quoted £190. This seems quite steep from other posts I’ve read. The Castrol BOT 720 oil seems to be around £40 per litre, so they’re charging £150 for labour. Is this really a long job? Could I do it myself as it’s additional to the required service schedule? Anyone know any indies in Wiltshire/Hampshire area that have done theirs for less? TIA

 

[Quiet man]

Hi Gusa, my brother did mine for me as he's a mechanic I watched him it seemed prity straight forward as I remember, he did have some kind of pump that he used to replace the oil I can ask him what it's called if you want.

 

[Anonymous]

Hi Gusa, my brother did mine for me as he's a mechanic I watched him it seemed prity straight forward as I remember, he did have some kind of pump that he used to replace the oil I can ask him what it's called if you want.

Thanks, I’d appreciate that. How long did it take him?

 

[Lunar]

For a dealer with a ramp I’d give it 20 mins tops.
It took me maybe 45 mins but that’s with ramps and taking things steady.
You use a suction pump to remove all the old oil when it’s a bit arse high.
They’re probably charging £50 for the oil and a half hour at £200 per hour - including coffee

 

[Anonymous]

i done mine LSD 380 model v6s , easy peasy , first you will need a long thin wrench about 10inch long with a thin head , 8mm bit to first release the fill plug , then the drain plug , go onto opie oil site put in your reg no , i done mine bought the oil from them £30 odd quidd then i had to buy a pump from halfords cost £20 , so in all say £55 job done in 20-30mins , i did phone my local jaguar dealer who quoted me £72 . but i like to do things myself

 

[Quiet man]

Hi Gusa, sorry for the delay it took a while for him to reply, it took him about 30 minutes and the tool he used is called a transmission oil filling tool they are around £50 to £60.

 

[Anonymous]

what no one has told you is how much to put in LSD 860ml

 

[Anonymous]

Thanks for the help and advice, I think I’ll look at doing it myself.

 

[Derivative]

Might be dumb questions but anyway...

What is a suction pump needed for when the oil will drop out of the drain hole?
Is it not the correct amount when it starts to run back at you from the filler hole?

 

[Anonymous]

Might be dumb questions but anyway...

What is a suction pump needed for when the oil will drop out of the drain hole?
Is it not the correct amount when it starts to run back at you from the filler hole?

The pump is used to re-fill via the fill port once it has been drained out and drain cap put back on , and no you don't just fill to it runs out aparantly , I read about doing it on the yank forum so put in the 860ml , but this is for the v6 models only with the LSD diff , the 5 litre cars take more over a litre

 

[Lunar]

Certainly not dumb - quite important to know.

A suction pump is something like this...

https://www.halfords.com/tools/hand-tools/automotive-tools/laser-oil-suction-gun-121825.html

And no, the fill amount does not equate to the level of the fill plug - you need to put in the correct amount for the type of diff.

I would also suggest measuring the amount taken out, as if you don't extract it all then putting the full amount back in will overfill it.

It all sounds a bit more hard work than it actually is though - getting to the drain plug is perhaps the hardest part, but with a long extension and sliding it along the drive shaft it works fine. Just make sure you can undo the fill plug first, before you drain the oil, else you're a bit stuck.

 

[Anonymous]

Hi Lunar , I got a different pump from Halfords mine was more bottle shaped with a longer tube about a meter long with a bent U shaped metal end , I just used it to fill. I tried that method of removing the back wheel to get to the fill port , just could not get enough pressure on the long extension to loosen it , in the end I had the car up on stands and managed to see the fill port better between the exhaust pipes, but my normal sized wrench was not long enough , needed another 2-3 inch to get a grip on it , also the normal wrench the end of the wrench was to thick , so had to shop for a thin head one , but got there in the end lol

 

[gasgas]

Gus, take a ride out to Honiton, go to windmill garage great guys and good price, ask for Roger the owner and Ivan or Barry to do the work

 

[Lunar]

Hi Beltupandholdon,
Yes, the one I linked I used for my Mustang back axle to suck the oil out.
Used the same one as you on the F but it was in cold weather and the tube stub snapped off, so they sent me another one.
I should have warmed the tube in warm water first so as not to strain the connection.

 

[AJB2]

I paid £72 + VAT during my main dealer service last November.

 

[Anonymous]

Hi Beltupandholdon,
Yes, the one I linked I used for my Mustang back axle to suck the oil out.
Used the same one as you on the F but it was in cold weather and the tube stub snapped off, so they sent me another one.
I should have warmed the tube in warm water first so as not to strain the connection.

Good idea Lunar , we should charge these young bucks a consulting fee for showing them to DIY lol

 

[Anonymous]

I paid £72 + VAT during my main dealer service last November.

That is the price the jaguar dealer in Glasgow quoted me , so you done well , but all dealers seem to have their own price list I found when comparing the spark plug change and also servicing was quite shocked by the difference between one dealer to another

 

[Anonymous]

Gus, take a ride out to Honiton, go to windmill garage great guys and good price, ask for Roger the owner and Ivan or Barry to do the work

That’s a good recommendation thanks, I’ll see if the dealer will match the £72 + vat and if not I’ll either do it myself or head down to Honiton!

 

[RPSN]

what no one has told you is how much to put in LSD 860ml

I read about doing it on the yank forum so put in the 860ml , but this is for the v6 models only with the LSD diff

As the diff in question has previously been filled, the correct ‘wet fill’ amount on the V6 is 0.815 - 0.835ml. The 860ml you mention only applies to a ‘dry fill’ on the V6. I’ve attached a screen shot which is applicable to F-Types with V6 and V8 engines (360PS engine should actually show as 380PS).

Might be dumb questions but anyway...
What is a suction pump needed for when the oil will drop out of the drain hole?
Is it not the correct amount when it starts to run back at you from the filler hole?

A suction pump is not needed to drain the rear diff oil which is done via the drain plug. However a pump is required to replace the oil via the filler plug, such as this....
https://www.ebay.co.uk/itm/391473069609

https://www.sealey.co.uk/product/5637203539/1l-multipurpose-mini-pump

You must not fill the differential with lubricant up to the filler plug. The filler plug is only used to fill the differential with lubricant, and not to act as a level indicator. The correct specification and quantity of oil should be used.

I would also suggest measuring the amount taken out, as if you don't extract it all then putting the full amount back in will overfill it.

It all sounds a bit more hard work than it actually is though - getting to the drain plug is perhaps the hardest part, but with a long extension and sliding it along the drive shaft it works fine. Just make sure you can undo the fill plug first, before you drain the oil, else you're a bit stuck.

To drain all of the rear diff oil, the car should be reasonably level and not lifted up high on one end. In doing this, there’s no need to measure the amount of oil that is drained out, to avoid overfilling. Also the oil should be warmed up a bit beforehand....by taking the car out for a drive.

You’ve got it the wrong way round.....The drain plug is easiest to access as it’s located on the underside of the rear differential. The fill plug is more difficult and there’s a couple of ways to do it including the one you mention.

we should charge these young bucks a consulting fee for showing them to DIY lol

by Beltupandholdon » Wed Nov 03, 2021 6:41 am

but i am learning to DIY and save a few quid

https://www.ftypeforums.co.uk/viewtopic.php?p=59899#p59899

That’s a very bold statement from someone who is learning to DIY lol. I won’t be charging you a consulting fee for correcting the appropriate rear diff oil quantity you stated for the V6 :lol:

 

[Lunar]

If you can drain the oil with the car level and not up on ramps I’m impressed RSPN

Ramps are always the safer option to a jack and axle stands - a lot less faff too