Firstly, apologies if this question has already been asked. Haven’t mastered the “searc feature as of yet. From my research, my model (2007 Jag XK) is equipped with a ZF 6HP26 automatic. Not sure if this trans is in all the X150s, but I digress. I recently noticed a hesitation to shift between gears 3 & 4. As I have 75,000+ miles on my vehicle, I thought a fluid drain & replace may be required. This was performed by a local indy shop by me. Still, when the transmission is cold, I notice a hesitation to change gear. Usually 3-4. Is this something I should be concerned about, or am I just overly protective of my baby?

Thanks for any responses.

 

Hi and welcome to the forum. Go to this link and scroll down to #10 and read all of the content. See if any of those address your concerns. Some of them are troubleshooting guides:

https://www.jaguarforums.com/forum/x...enance-227403/

 

be careful with fluid change ..... i have 67k miles on my 2011 XKR did fluid change as a maintenance item, as never had any problems with my transmission and then nightmare started that ended up with $3500 transmission rebuilt job...
hopefully this is not a case for you

more info in my post below:
https://www.jaguarforums.com/forum/x...-232161/page4/

 

Mine hesitated too so I did an oil change but it still does. It does it from first to second a third to fourth, not always but occasionally. Had the car for four years now and hasn't got worse so I live with it. :-)

 

Now then , As jaguar say the transmission is sealed for life others inc myself call that sealed for death , so we change the oil and filters in the gearbox . Others will argue as in the past it has happened saying If the transmission service is not done before 60,000 miles ther could be damage done to said gearbox , I have read such arguments on this forum myself and so have others . But in my opinion getting it done should help the transmission regardless. You could also try resetting the transmission by entering the car pressing the starter button but Do not put foot on the brake pedal to turn the engine over . Instead put foot firmly on the gas pedal and hold for 3mins . This will reset the gearbox . Then switch the ignition off, don't touch anything for 2 mins then turn the car engine on and take for a spirited blast , the gearbox can get lazy and this should and will in my experience learn it new ways

 

Does this reset work with my 2006 xk?

 

Yes it will try it

 

They haven't done that for 11+ years (which was when I first got access to TOPIX, their tech site, and it was already on there to do regular fluid changes).

 

What mileage do they recommend

 

A few clarifications for this thread. First and foremost, Jaguar never recommended sealed for life. That may be in their literature but it is ZF that made that claim. Second, in August of 2013, ZF changed that recommendation. Third, ZF doesn't recommend a full flush. They recommend a drain and fill. They also don't claim that you can't or shouldn't perform a full flush. Flush away when it's service time if that's what you want. See the attached.

And here are the recommendations as of 08/2013:
ZF automatic transmissions are filled with specially developed semi-synthetic oils.
At very high operating temperatures, the oil ages faster than under normal conditions. Examples:
 Many trips at high speeds.
 Many trips with a trailer in tow.
 Sporty driving.
Depending on the driving style, ZF therefore recommends a transmission oil change every 80 000 to 120 000 km, or after 8 years at the latest.


I'll add that with the original release of the transmission, there were squawks in some of the transmissions and the resulting TSB had solution which was an additive that was created by ZF. ZF subsequently put the additive in their lifeguard fluid so the additive no longer exists. Hope this clears up some confusion.
EDIT: The squawk did not apply to the X150 per the TSB. It applied to some of the X100 models as well as other earlier models so the additive was introduced and resolved before our models.

 

I stan to be corrected . More tea vicar

 

I meant to write "clarification", vs "correction" and I updated my post t reflect that change. Sorry mate.

 

Its ok honey i still love you lol

 

George,
Does it work with the x100? 2005 model year?

wj

 

@2007JaguarXK , I'm hopeful your shop paid strict attention to the levelling procedure for the fluid as well as the type of fluid. Not following these guidelines can be disastrous.
Though I feel poorly for @Peter Ucinski ; @George05 's comments are useful.
I too have always changed the fluids and filters at 40k km intervals on both the xjr as well as the xkr. I have not had any issues to date. (Knocking head on wood table)
FWIW, the first changes were done twice, in immediate succession following a short engine run and flipping through the gear selector. (Though I only had the filter changed once in that process.)

If you are local to an actual ZF transmission shop, I hear the service is exceptional. Sadly there isn't one near me.
Cheers.

 

Just to throw my experience in, about 4 months ago I noticed my 08 XKR was clunking up into 2nd or 3rd from a slow roll down in speed and then accelerating.

I had no idea until yesterday when reading a thread on this forum that what I was experiencing had a name and that name is type two lurch.

Anyway when having my car serviced a few months ago I asked them to change the transmission pan and fluid, I explained to them the clunking issue.

They said a software update should help sort that issue, so they did the tranny fluid change and software update, and in the next month I drive that car I did not have the lurch occur again.

 

Yes. I first learned of this trick from the x100 model ,But remember to follow the procedures, After holding down the pedal for 3mins switch the ignition of and sit in the car for 2 mins TOUCH nothing . Then take it for a good spirited drive for half an hour , the gear box becomes lazy this resets it

 

Thanks George,

I’m in need of a bit more explanation.

MY 2005 x100 has a keyed momentary twist to start (engage starter).

Please walk me through the ‘pressing starter button’ sequence with my 2005 xk8.

wj

 

Ok it is just the same , put key in ignition turn to first position (don't start engine) You will see dash lights up . Then press gas pedal firmly Hold for 3 mins use your watch to see , then after holding gas pedal in for 3 mins, release the gas pedal and switch ignition off remove key , sit in the car for 2 mins Touch nothing inc window and door , then start car take for a good Blast at speed . I have seen a YouTube video of this for your car will post it soon check in later

 

Look after your car , Here in the UK the second hand car market for your model has Rocketed . Here is the video as promised it works on All jaguars