I called around and 2 Jag Service managers told me that they don't normally service transmissions on 2000 XK8's. It's a sealed unit with forever-lasting fluid. They said that yes, in some cases they could, but that it's a rare prodedure and is very time consuming and expensive.

Anyone had theirs done? How much did it cost and would you do it again? Mine makes a whirring sound while shifting when it's cold but it goes away after warming up and heat soaking.

 

What is true is its not called out by Jaguar as a standard required maintenance.

I suspect, with a high mileage car, already making an unusual noise, they don't want you coming back claiming they did something wrong if tthe transmission then fails soon after the fluid change.

This is nonsense. If you want the best chance of avoiding trouble as the transmission ages, have the fluid and filter changed by a competant independent shop.

 

Thanks, XKR, but unfortunatly my indy shop says the CD's used to reprogram the tranny are proprietary and they can't get them. I'll look around some more, but Jag and the others make it tough on indy shops.

 

What needs to be reprogrammed for a fluid/filter change ??

 

Something about shift points being reprogrammed.

 

No reprogramming required . . . change your ATF . . . and the filter.

 

Mostly the only time you would clear adaptations is if the gearbox failed. The TCM would try to shift the replacement gearbox like it did the failing unit.

ATP makes a filter kit B346 for the 5HP24

bob gauff

 

My transmission failed at 118,229 miles.

Took it to my regular indy Jag mechanic and read out the codes. It showed that the transmission was bad and they recommended it be replaced with a rebuilt. They said that the units are sealed and there is no maintenance.

I got a second opinion from and indy Transmission shop that worked on ZF. They said that they can rebuild it. They also said the units are sealed, but they know how to service them and rebuild them.

Find another shop in your area that knows ZF transmissions!

 

Never mind below, your transmission is different, it is 5HP24, so go here for some help: https://www.jaguarforums.com/forum/s...ad.php?t=31553

Here is W5A580 info:

I might be new here, but I just did transmission filteer / gasket change on my 01 XKR. Best place to buy filter is from dodge dealership, $32 + gasket $28, they call our gearbox NAG1, also they recommend ATF +4 fluid, being exact same as Mercedes fluid, however I bought mine at NAPA store @ $4.50/qt.

Anyways, W5A580 transmission is highly serviceable and extremely easy to tune up. I cannot imagine what trans fluid would look like at 110000miles, if mine at 68K looked like dirty motor oil and cold transmission was already acting funny on upshifting.
Since no generic oil change place would take me in for fancy service, with fluid circulation, I replaced filter, gasket, stuck strong flat magnet on the inside of the pan, to catch metal residue and now I keep draining about 3 qts every time, refilling with new fluid. Two more drain and fills and I am hoping to see pink in my gearbox.
Also, I borrowed transmission level check tool (aka mercedes dipstick) from my friend, so I know that 3 quarts go out, 3 qts go in, every time.

 

I had the fluid and filter replaced in both my 99xk8 & 2000 s-type by an independent transmission shop and would them both again. I must tell you that I had replaced the fluid in the xk8 and about 6000mi the “B” drum failed. One could say that the fluid change was the cause of the failure but my trans guy does not believe it was the cause and with the recent “A” & “B” drum failures I believe it just gave out.
http://www.gusglikas.com/AutoRepairTransZF5HP24.htm
Hope this helps!

 

Is 5HP24 generally a trouble maker?

 

It is a Mercedes tranny and is very reliable. It was used in the supercharged cars because it is more durable.

 

I am not qualified to make that assumption but it appears that they have had problems with Jaguar, BMW, Range Rover and ZF5H24A in Audi, & Voltswagen and they are still in production.

 

Relatively speaking, in the jaguar line between the other ZF6Hp26 and the mercedes gearbox, yes it does have more internal failures. i would call it a suspect part and be more timid with gear changes if I had one...and it hadn't been repaired with the more resilient drums.

 

I just did a filter and fluid change this weekend on my 2000 xk8. Took about 2 hours and it's done.

 

I've heard that the XKR has a more durable/reliable tranny. Is that due to the B drum issue?

 

The pre 04 cars use the 5hp24 ZF in the standard car and the W5A580 Mercedes tranny in the R type. The 4.2 cars beginning in 04 switched to the 6hp26 ZF in both the standard and R type cars as it has the capacity for the incresased power of the R. The 6hp26 is different from the 5hp24 and has not had drum issues. It has a revolutionary epicyclic planetary gearset with few parts that makes it very efficient and saves fuel. It also can do converter lockup in all six gears, even at a stop, which makes the tranny actually a 12 speed, giving unreal fuel mileage, as to whcih I can attest.

 

I meant to add that there is a company in CA that makes a fluid change kit for both these trannies.
Try www.thectsc.com
It is very important to use the right fluid in both and to set the level according to a certain fluid temp.

 

not a biggie, but to clear up any confusion, the 2003^up have the ZF6HP. You were close oldmots

skimark, yes, the drums seem to be the major cause - and I do think the B is more popular.

 

Thanks, oldmots, I printed out a copy of the kit for my car and will take it by my indy shop today and see what they say.

The tranny itself shifts smoothly and quietly, never had any codes or strange occurances, the only issue is the whirring during sifts when it's cold which go away after warm up. I can even avoid the whirring by going easy on the throttle until it's warm. So I'm hoping all it needs is the fluid/filter change, which would also provide a look at the fluid.