First question...What year is your car?

I changed transmission fluid at 29k once... But that was because the car was over ten years old...

Now my question makes sense doesn't it..

 

Here we go again...
ZF 5HP24 has Esso 1174 fluid which is part synth. You can't get it -- just try. OEM only.
ZF 6HP26 has Shell M1325.4 which is full synth. Can be bought on E-bay.

A commonly accepted substitute is full-synth Dexron III in 5HP, full-synth Dexron VI in 6HP. Full-synth is always longer lasting than part. OEM fluids are more than expensive, they are ripoff.

Eliminating the BS. about sealed-for-life, change full-synth around 60,000mile, part synth around 30,000mile -- for conservative driving. For enthusiastic driving, half-it.

Changing the ATF is not easy, follow the plentifil(!) instructions on this website.

Leedsman.
Yes, I've done it myself.

 

Those look about half-right, though the S-Type doesn't use the 5HP24. The Jag-specified fluids are in this PDF https://www.jaguarforums.com/forum/a...achmentid=2914
at about page 148.

It's said that Shell M1375.4 is the same as ZF LifeGuardFluid6. Jag specify the former, ZF specify the latter.

 

Just to clarify, Shell M1325.4 is not a brand but a spec. Redline ATF, and the castro multi vehicle are some of the fluids that claim compatibility to the spec. Lifeguard6 makes no claim but is is made by the ZF for its transmission.

 

I didn't know that. You mean 1375.4, btw.

 

Yes, Shell 1375.4 is a spec, not a brand or product. The general consensus is that if you use an alternative fluid other than Lifeguard 6 in your six-speed ZF, make certain that your chosen fluid meets the spec. In theory, you minimize your risk factor considerably if you do....

 

Decided to do a transmission flush as box has now done 62K. Will probably be using Millermatic ATF DM as Millers Oil state is suitable for the 6HP26 box, plus it's so much cheaper than the |Shell oil at £80 for 20litres. Also have been interested in what a guy said on another forum about reusing the sump/filter. He cleaned up the magnets and filter, back flushed the filter and air dried it and used it again. It does seem an awful
waste to not reuse it if possible. Anyway my first job is the get the sump/filter off and take it from there.

 

Please let us know how it goes and if there is any improvment in the gear changes.

I'd splash the extra cash on a filter, at 62K I think your old one has done its job and needs to be retired.

 

Change the electrical sleeve, too!

 

Heck aren't those about 15 bucks?

 

Pert near, worth every penny.

 

Back in 2004; North Scottsdale Jaguar Dealership told me to not Change the transmission fluid on my 1999 Jaguar XJR, because it could hurt the transmission. I change the transmission fluid anyway and my transmission broke at 70,000 miles. I will never Change the transmission fluid again it cost me over $8,000 to have my 1999 Jaguar XJR transmission rebuild (It would have be over $19,000, if the work was at a Jaguar Dealership).
I now own a 2002 Jaguar S-Type Sport and a 2007 Jaguar S-Type R; both cars have over 100,000 miles and I never had one problems with the transmissions yet. If I do have any problems I will let you guys know.
I think the Jaguar Dealerships are right on the transmission fluid, learn from me I paid thousand dollars and my Jaguar was never the same after the work.

 

Welcome to the forum,

Funnily enough Jaguar North Scottsdale told me I should change the fluid, IIRC they said 80,000 miles.
What happened to your tranny?

You may want to post an intro in the new members section.

 

Yes, please enlighten us.

 

I will..... His 99 XJR had the Ford 5 speed trans in it. The valve body springs broke (just like many) and he was told to buy a new transmission.

Also, my guess is the 2002 is on borrowed time and should have the valve body rebuilt with new springs and a fluid service....

$8,000 for a Ford transmission rebuild??????? $19,000 for a new one from the dealer...... Something is REAL fishy here....

Heck.. The going rate to rebuild for the 7 speed Mercedes transmission in the R350 is $7,000......

 

@ joycesjag

The 1999 Jaguar XJR has a 6 speed Mercedes ZF Transmission, not a 5 speed Ford Transmission. All Jaguars “R” have a German ZF Transmission. A remanufactured ZF Transmission from Jaguar North Scottsdale cost $10,150 today, but a brand new transmission is still $19,000 and this is not the labor cost. There is nothing fishy! You can call Jaguar North Scottsdale yourself Toll-Free: 800-798-9175 or 480-538-4200. You also can ask Jaguar North Scottsdale about the Mercedes ZF Transmission that’s in the 1999 Jaguar XJR.

I’m just trying to help, that’s all! I’m a forty two years old man and I don’t have time for games or time to lie to you guys about a Jaguar I owned. Like I said just trying to help! PEACE!!!!!

 

1999 BMW M5 versus 1999 Jaguar XJR (TOP GEAR)

bmw m5 versus jaguar xjr - YouTube

 

Thanks for the info.

 

@ Norri
Your Jaguars are not “R”, so that maybe true. But all the Jaguars “R” cars has a German ZF Transmission that’s sealed. Jaguar North Scottsdale clam if you open it dust will get in the Transmission and it can cause transmission failure. All I know is what the Jaguar North Scottsdale service advisor named Don told me and he said it has a lifetime Transmission fluid. He also said if you’re Jaguar over heat or if seals leak on the transmission, then you should change the fluid. He said he will change it for me, but I will be just wasting my money.

 

@ Norri


I think your transmissions are German ZF Transmissions, but not for sure. PEACE!