Jaguar F-Type differential failures - Input needed.

Anything F-Type related......
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scm
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Post by scm »

captainham wrote: Wed Mar 25, 2020 4:08 pm Do you know how much oil it takes?
Rear:
Vehicles with 3.0L petrol (340 PS) SAFXO Dry Fill 0.84 - 0.86 Wet fill 0.815 - 0.835 Litres
Vehicles with 3.0L petrol (380 PS) Dry Fill BOT720 0.84 - 0.86 Wet fill 0.815 - 0.835 Litres
Vehicles with 5.0L petrol BOT720 Dry Fill 1.24 - 1.26 Wet fill 1.200 - 1.220 Litres
Last edited by scm on Thu Mar 26, 2020 9:48 am, edited 1 time in total.
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Post by scz4 »

Fez wrote: Wed Mar 25, 2020 5:58 pm Costs: Evening All, My 400 sport AWD has gone in for its second service today and whilst there I enquired about changing Diff Oil due to the discussions on failures. The good news, is the dealer had not had to replace any however would check the seals for any sign of leaks. The quote to change the oil for the two diffs and the tranfer box came to £427.37 inc vat. That is broken down:
Front: drain plug £2.76, filler plug £2.29, oil £32.53 labour £76.80
Rear: drain plug £2.29, filler plug £14.34, oil £32.53 labour £38.40
Tranfer box: plug £7.04 Oil £120.98 labour £96.00

As the car is still under warranty the dealer advised not to worry as if it goes wrong in the next year Jaguar will cover the costs to repair. Once out of warranty will consider making a routine every three years due to low mileage use.
Thanks for that, fairly reasonable for the rear diff. I think I'll do mine in June just in case.
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Post by captainham »

scm wrote: Wed Mar 25, 2020 6:13 pm Rear:
Vehicles with 3.0L petrol (340 PS) SAFXO Dry Fill 0.84 - 0.86 Wet fill 0.815 - 0.835 Litres
Vehicles with 3.0L petrol (360 PS) Dry Fill BOT720 0.84 - 0.86 Wet fill 0.815 - 0.835 Litres
Vehicles with 5.0L petrol BOT720 Dry Fill 1.24 - 1.26 Wet fill 1.200 - 1.220 Litres
Thank you!
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Post by RPSN »

scm wrote: Wed Mar 25, 2020 6:13 pm Rear:
Vehicles with 3.0L petrol (340 PS) SAFXO Dry Fill 0.84 - 0.86 Wet fill 0.815 - 0.835 Litres
Vehicles with 3.0L petrol (360 PS) Dry Fill BOT720 0.84 - 0.86 Wet fill 0.815 - 0.835 Litres
Vehicles with 5.0L petrol BOT720 Dry Fill 1.24 - 1.26 Wet fill 1.200 - 1.220 Litres

Slight error in the the above info..........should be 380 PS instead of 360 PS
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Post by scm »

RPSN wrote: Wed Mar 25, 2020 10:04 pm
scm wrote: Wed Mar 25, 2020 6:13 pm Rear:
Vehicles with 3.0L petrol (340 PS) SAFXO Dry Fill 0.84 - 0.86 Wet fill 0.815 - 0.835 Litres
Vehicles with 3.0L petrol (360 PS) Dry Fill BOT720 0.84 - 0.86 Wet fill 0.815 - 0.835 Litres
Vehicles with 5.0L petrol BOT720 Dry Fill 1.24 - 1.26 Wet fill 1.200 - 1.220 Litres

Slight error in the the above info..........should be 380 PS instead of 360 PS
Well spotted! I should have double-checked when I stole the information ... ;
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Post by Derivative »

I infer from the 3 different fill levels there are 3 different diff models.
Do they all suffer problems or is there one in particular that gives problems?
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Post by Tel »

Derivative wrote: Fri Mar 27, 2020 6:53 pm I infer from the 3 different fill levels there are 3 different diff models.
Do they all suffer problems or is there one in particular that gives problems?

The conventional diff found on the V6 340 PS F-Type is fine.

It appears from what I'm seeing on the US and UK forums, that the electronic diffs (eDiff) found on the 360PS and V8 models that have an electronic motor to control the amount of 'silp' via a set of clutch plates suffer.

So far it seems that contamination from the plates is spoiling the oil a lot earlier than JLR had initially envisaged going on their maintenance routine.
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Post by RPSN »

Re-posted
Last edited by RPSN on Sat Mar 28, 2020 6:00 am, edited 6 times in total.
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Post by Derivative »

Tel wrote: Fri Mar 27, 2020 7:12 pm
Derivative wrote: Fri Mar 27, 2020 6:53 pm I infer from the 3 different fill levels there are 3 different diff models.
Do they all suffer problems or is there one in particular that gives problems?

The conventional diff found on the V6 340 PS F-Type is fine.

It appears from what I'm seeing on the US and UK forums, that the electronic diffs (eDiff) found on the 360PS and V8 models that have an electronic motor to control the amount of 'silp' via a set of clutch plates suffer.

So far it seems that contamination from the plates is spoiling the oil a lot earlier than JLR had initially envisaged going on their maintenance routine.
Thanks Tel,

Is the weeping seal problem across all diffs, or again just with one of two of the types?
Does the weeping seal problem contribute to those that have problems or is it in effect a completely separate issue?
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Post by scm »

RPSN wrote: Fri Mar 27, 2020 7:53 pm I'm aware there’s a V6 340PS and 380PS but not heard of a 360PS?
No, that was an error, should have been 380PS. I've corrected my original post.
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