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1999 Jaguar XK8 Question: check or add differential fluid on 1999 Jag XK8 convertible

 

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Kevin 557, Kennesaw, GA, May 24, 2011, 18:30
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During my last oil change, the mechanic pointed out some leakage around the passenger side axle and the front seal on the dufferentialon my 1999 Jag XK8 convertble. I asked if they could check the fluid level. They said they could not remove the fill plug on top of the differential because the rear sway bar was directly above it. They said the sway bar would have to be removed to access the fill plug requiring quite a bit of dis-asembly. Is this correct? Is there anyway to remove the plug to check/add fluid without taking off half of the rear end components?

Thanks.

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  • Answer #1

    patrick mannion from Greg Solow's Engine Room, May 24, 2011, 21:10
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     Master

    I know there are a lot of bracing tubes and the sway bar is at the back of the differential but I don't remember having to take off the sway bar to check the fluid level. I think it is an allen key socket I have that you check the fluid level with but it didn't require a lot of disassemble to get to the filler/level plug. I just looked at Alldata the illustrations were no help.
    Jaguar call for Shell Spirax Super TS90 oil or eqivalent.

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    Kevin 557, May 25, 2011, 16:41
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    Thanks for the reply. I am going to take a close look at it myself this weekend.

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    Excalibur2012, October 31, 2012, 21:12
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    Jaguar (maybe Ford) dictated that both the Tranny and Differential be sealed for life. I can't imagine what kind of arrogant and incompetent attitude it takes to engineer a vehicle in such a way. People actually got paid to do this.

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  • Answer #2

    May 24, 2011, 21:16
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     Master

    Looking at an illustration, it's hard to tell for sure, but I can see there are definitely items in the way.

    Jaguar suggests this unit is "lubed for life", so it would not surprise me that access to a fill plug is limited.

    Best thing to do: get a second opinion at another shop near you.

    Here's a link to some... https://repairpal.com/directory?address=30152&car_brand_names=Jaguar

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    Kevin 557, May 25, 2011, 16:50
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    Thanks for the reply and link. I am going to look a close look at it myself this weekend.

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    Excalibur2012, October 31, 2012, 21:06
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    Have a 2000 XKR. I just tried to fabricate a short 1" long 1/2 inch extension to fit the plug and clear the suspension. Had the car on jack stands and tried for an hour to access the plug and couldn't I don't see how to do it without removing components.

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    Excalibur2013, June 26, 2013, 13:29
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    Your going about it the right way but you don't have to remove parts. Go to the Jaguar Forums http://www.jaguarforums.com/forum/xk8-xkr-17/checking-filling-differential-62744/page2/

    It takes patience!

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