This is the pic of the fluid at the Jag centre close to my place.
The SA says he has 6 L of the said fluid .
Is this fluid all right ? Pls advise as I am gonna go tomorrow for the trans fluid change.
From the relevant threads I surmised that ZF LIFEGAURD is the prefered fluid.
Thanks!
Dr Ali

 

M1375.4 is made by Shell and rebranded them for BMW, Jaguar, Landrover, Maserati etc which uses the 6-speed ZF 6HP26 transmission.
6 litres is enough to do a drain and fill and replacement filter. Note that there is still 2/3 of trans fluid still in the torque converter. I did 4 drain and spill and used about 15 litres of transmission fluid or 4 gallons.

 

That's equivalent to ZF Lifeguard 6 so if that is what your gearbox requires then M-1375.4 will be fine. As your XKR presumably has the ZF6HP28 then a Lifeguard 6 equivalent is correct.

Richard

 

Thanks guys!
will go ahead then.

 

Thanks guys!
will go ahead then.

 

I still don't believe the Six Liter deal. I watched mine get drained and then 9-1/2 liters go back in and I checked the level myself. I didn't DO the work, I supervised it.

 

Man what should I do then , I am gonna go there today.
They have only 6 l of fluid .

 

When you do a drain and fill only about 4 litres of transmission fluid will come out when you drop the filter. Most of the old transmission fluid will still be in the torque converter and radiator. If its a brand new / rebuilt transmission it will hold a total of 10.2litres of transmission fluid.

 

Perhaps the X100 ZF box has a different capacity but I got a little over 6 litres out of/into my XK8. I haven't yet done the X150 yet but my understanding was that it is similar so you would really need 7 litre bottles for the refill although there is so much unchanged fluid left in the torque converter that if you only had 6 litres available I would have no problem in using the 6 litres of new fluid and, if I need a little bit more, then just use some of the old fluid you removed. You can visually inspect it or even filter it through some kitchen roll to make sure that there are no particles in it but it's not going to make any significant difference to the percentage of used fluid which is still in there.

Richard

 

When I did my TF change I cycled about 13 litres of genuine Jaguar TF through the in/out transmission ports after droping/replacing the filter pan and replacing the 4 litres removed. This cycled out all old fluid. After I set the fluid level using the fill hole following the proper heat fill level process. This was a very expensive process using genuine Jaguar fluid. If I do it again or a partial change I will use ZF Fluid 6. The Jaguar TF and ZF Fluid 6 look identical.

 

Pray what is the PROPER HEAT FILL LEVEL PROCESS you are referring to, please elaborate.
Today I went to the jag dealer close to my place which is a good 70 kms drive .
When i reached there they drained the fluid through the drain plug .About 3.9 L of good quality fluid came out. They put 5 L of fresh fluid in.Hooked up the computer to check for the fluid level.
Which they could not get as they said the temperature of the fluid is 60 c and they have to wait for it to cool down.
I was asked to leave the car overnight .
Am gonna go there tomorrow as asked.
Is this all right. I don't know man .
I am a novice in all this .

 

@pedoc , here is the short version. The transmission doesn't have a fill tube. There is a fill hole on the side, near the exhaust pipe. Once the fluid is drained and a new pan/filter installed, the fluid is either pumped in or gravity fed to the bottom of the fill hole. Then the mechanic must start the engine and run it until the fluid reaches a specific temperature, then they top it off until it's full. If the engine is too hot, well the fluid expands and you lose more than you should out of the fill hole.

Hope this helps. Here is a video of it being done.

 

I do not believe that the fluid level can be monitored through the ODBII data bus. I'm sure someone will advise if this is not correct. If I am correct, your garage don't have a clue what they doing and they are going to **** it up.

Richard

 

There is a proper process to follow. It's been awhile, but it is something like. Fill through fill hole by exhaust pipe until fill. Start engine and move transmission through gears with foot on brake. Leave engine on and car in park. Wait until transmission reaches set temperature and refill through fill hole until full (no more fluid can go in). Install plug (and, burn your hands). This procedure is detailed in the ZF and Jaguar shop manual.

https://www.jaguarforums.com/forum/xj-xj6-xj8-xjr-x350-x358-28/zf-6hp26-28-transmission-fluid-flush-diy-217150/

 

Yup, that's it. Though they call "full" a steady stream running from the fill port onto the floor of your choice.

Then there's the burn your hands part. On the BMW's there's clearance. On the XK, nope. Just try to get the fill plug in without smelling the charring of human flesh..... And the requirement for an 8MM indented hex key, when if they left an 8MM hex bump on the surface of the plug you could insert it in a moment with a ratchet wrench. But the key point is that the ZF must be filled while running to suck fluid into the mechanism. If the shop doesn't to that, you're immediately running about a liter low.

Why this odd procedure? Because ZF (among other fine organizations) thought they could run lifetime, so it never had to be easy to fill. Then, alas, they found transmission fluid is not made from Kryptonite, so needed to be replaced once in a while....

Also, if anyone has this done for the first time at 80-90Kmi, make sure they drop the mechatronics and replace all five rubbers between the mecha and the main section. They dry and crack. Should be no more than an incremental 30 min labor for a pro.

 

"Just try to get the fill plug in without smelling the charring of human flesh." - why couldn't you wait for the system to cool down if you are doing it yer self?

 

Think the procedure requires that the plug be reinstalled while the engine is running and fluid is coming out the hole (at some specified rate). Otherwise, your fluid level will be too low, if you were to wait.

 

I dunno, the level will drop as the fluid cools.

 

As I said, the liter (more or less) installed while running is sucked up into the tranny, and will spill out if the engine is off as it drains back into the sump.

What kj07 said. Engine has to be running or you get a bath of hot tranny oil spewing out the fill hole when you shut it off. So that's ZF's dumbass design fault. Last time I was in there I recall about 2-3 inches between the plug and a effing hot exhaust pipe. And that Jag's equally dumbass design fault, 'cause you cant get a regular ratchet in there...the exhaust pipe is literally in the way of a ratchet. My solution was a heat insulating cloth resting on the exhaust -- looks like asbestos cloth but of course isn't. I assume a good quality silicone heat wrapper would also do. Recommendation: wrap the pipe before you start, and prep an X MM ratcheting wrench, with just enough shaft to stick into the plug. Sorry, can't remember the hex size. Check to make sure it's ratcheting in the right direction before you start. And as they used to say in the long ago cartoon: " happy happy joy joy...."

 

The system will only cool down once you stop the engine but as soon as you stop the engine the fluid level in the sump immediately starts to rise and it pours out of the fill / level hole. You have to get the plug in whilst the engine is running and the fluid is hot.

Richard