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Discussion Starter · #1 ·
As per my other thread i am in the unfortunate position where my XKR is considered uneconomical to repair. They are offering me a couple of options but im tempted to take the £9500 settlement they offered to write my car off.


The gearbox issue is why im prepared to take the money and run. Anyway i bought this XKR with the zf gearbox one year ago, i was aware of the gearbox issues and i made sure that this one worked properly, the gearbox was flawless, over time the changes became less smooth and i got a jolt when stopping sometimes, i got the box serviced about 100k, this improved things however the gearbox is now worse than ever, its like driving about in sport mode all the time, gear changes are not smooth and i get jolts more often.

So im looking at what to buy next for about £4k to £5k. I like the XJ x350 however it has the same problematic gearbox. I know from buying this xkr car that buying a faultless xkr has turned round to give me the common gearbox issues associated with the ZF gearbox.

I love auto gearboxes but this gearbox was fitted to many luxury cars. How do i go about buying an auto car that wont end up giving me grief. I dont really like bmw's or mercs or audi, so i fancy the Jaguar XJ but i fear i will end up with more gearbox issues.
 

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Discussion Starter · #3 ·
£9500 will buy the best of the X350s with a relatively low mileage , I wouldn't say that the box was particularly problematic
I am only thinking about spending part of the money, thats why i mentioned 4 to 5 grand. There is a nice xj8 4.2 in the classifieds, the chap has a link to ebay. I looked back at the chaps threads and a few months ago he is complaining of the problems with his gearbox, no mention of this in any of his ebay advert/

I dont know what percentage of these boxes suffer from the lurch but i will shoot myself if i get another one. A small percentage of owners actually get the gearbox serviced.
 

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Make sure its serviced every 60k with zf lifegard 6 and you will be golden.

The box is tough :-D
 

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Discussion Starter · #5 ·
Make sure its serviced every 60k with zf lifegard 6 and you will be golden.

The box is tough :-D
I have not looked extensively but i never seen any XK8 or XKR's for sale and that has had the gearbox serviced. Never mind having it done every 60k. That would be ideal of course. I dont think anyone has pinpointed the lack of fluid changing to cause the lurch though. I got mine serviced and it has made it worse. It was flawless when i got it.
 

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It's a good gearbox, a properly serviced box will be virtually unobtrusive in operation, i.e. One that was serviced by someone who knows what they are doing and the service was not done too late to avoid irreparable damage.
 

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I have not looked extensively but i never seen any XK8 or XKR's for sale and that has had the gearbox serviced. Never mind having it done every 60k. That would be ideal of course. I dont think anyone has pinpointed the lack of fluid changing to cause the lurch though. I got mine serviced and it has made it worse. It was flawless when i got it.
Both Jaguar and BMW who use this box say sealed for life. ZF who make the box say service every 60K miles. At £400 it makes sense especially if you see the oil that comes out. The lurch is quite rare and occurred more in XKs than XJ etc.I had the box in my S Type and there was never an issue. I've not seen mention on the BMW forum either. I don't know the numbers of ZF six speed boxes out there but the lurch is in comparison very rare. One fix was for an additive as well as adaptations. Who changed the oil in yours? Jaguar? and indi? or a ZF specialist? I was told when I had the S type done that to do the job properly you need a link to the ZF factory to update the firmware and do the adaptions. I doubt most Indys and Jag dealers pay to offer this link.
 

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Biased I might be, but the XJ X350 is a wonderful car and is an utter joy to drive as well as own.

I'm not aware my box has the lurch or any unknown/known issues, it was serviced some 20k ago and I'm pretty certain it wasn't with Lifeguard 6.

Is this a worry? it was some 6 months or more ago when I had an horrendous whine that turned out to be the AC compressor bearings giving way.

In diagnosing this issue I took it to an A rated ZF specialist who did all the checks, gave it a clean bill of health advising the box was not the issue.

I came away from there with a recommendation that I should return when the mileage hits 125k (20k to go) and have a full blown service for around £300.

Asking as you do, I was surprised to find that a worst case scenario would be £1400 for a fully warranted reconditioned box supplied and fitted, or my own removed, reconditioned and refitted.

Had it been the box at the time, I'd have paid it, why?

What else could I buy for the money that has the sheer presence, style and pace that the XJ has.

If you are seriously looking at owning one, don't forget the 3.6L V8, a rare car but one often overlooked.

Rich
 

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I am only thinking about spending part of the money, thats why i mentioned 4 to 5 grand. There is a nice xj8 4.2 in the classifieds, the chap has a link to ebay. I looked back at the chaps threads and a few months ago he is complaining of the problems with his gearbox, no mention of this in any of his ebay advert/

I dont know what percentage of these boxes suffer from the lurch but i will shoot myself if i get another one. A small percentage of owners actually get the gearbox serviced.
I don't think 4 to 5K is going to buy much to be honest with you
 

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Discussion Starter · #10 ·
It's a good gearbox, a properly serviced box will be virtually unobtrusive in operation, i.e. One that was serviced by someone who knows what they are doing and the service was not done too late to avoid irreparable damage.
I think the gearbox is great in terms of how good it operates when it working well.

Both Jaguar and BMW who use this box say sealed for life. ZF who make the box say service every 60K miles. At £400 it makes sense especially if you see the oil that comes out. The lurch is quite rare and occurred more in XKs than XJ etc.I had the box in my S Type and there was never an issue. I've not seen mention on the BMW forum either. I don't know the numbers of ZF six speed boxes out there but the lurch is in comparison very rare. One fix was for an additive as well as adaptations. Who changed the oil in yours? Jaguar? and indi? or a ZF specialist? I was told when I had the S type done that to do the job properly you need a link to the ZF factory to update the firmware and do the adaptions. I doubt most Indys and Jag dealers pay to offer this link.
Its odd that it happened more in the XKs than the other models, you would think the same box would give the same problems no matter what model you choose. I went to a Jag indie in Leicester who did use the right fluid and filters and changed the other little thing too. He said he did not do the software update because he prefers to see if the cars needs it first, he said there is no point in doing the software update if the box performs well after the service. It did perform great after the service but then gradually got worse and worse. I never got to pursue a fix any further.

Biased I might be, but the XJ X350 is a wonderful car and is an utter joy to drive as well as own.

I'm not aware my box has the lurch or any unknown/known issues, it was serviced some 20k ago and I'm pretty certain it wasn't with Lifeguard 6.

Is this a worry? it was some 6 months or more ago when I had an horrendous whine that turned out to be the AC compressor bearings giving way.

In diagnosing this issue I took it to an A rated ZF specialist who did all the checks, gave it a clean bill of health advising the box was not the issue.

I came away from there with a recommendation that I should return when the mileage hits 125k (20k to go) and have a full blown service for around £300.

Asking as you do, I was surprised to find that a worst case scenario would be £1400 for a fully warranted reconditioned box supplied and fitted, or my own removed, reconditioned and refitted.

Had it been the box at the time, I'd have paid it, why?

What else could I buy for the money that has the sheer presence, style and pace that the XJ has.

If you are seriously looking at owning one, don't forget the 3.6L V8, a rare car but one often overlooked.

Rich
That does seem like a very good price for the gearbox replacement, i have seen people mention paying over 2k for theirs. Its good to see you keeping up with the gearbox service. I do love the Xj, its great value for money too. I will look out for the 3.6 engine too.
 

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Discussion Starter · #12 ·

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I have not looked extensively but i never seen any XK8 or XKR's for sale and that has had the gearbox serviced. Never mind having it done every 60k. That would be ideal of course. I dont think anyone has pinpointed the lack of fluid changing to cause the lurch though. I got mine serviced and it has made it worse. It was flawless when i got it.
Servicing the box won't cause issues.

usually the adaptions have to be reset after a fluid change.
 

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Is it just my failing memory or did the 6HP26 get less troublesome a few years into production? The early implementations seemed to be more prone to the lurch.

The other obvious point to consider is that any car that has done north of 100k will undoubtedly show some signs of wear and reliability is not going to get better with increased wear. It is a risk we take buying well used cars and that is why they are so cheap. Have to keep some cash in the back pocket for some remedial work.
 

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Bertie I replied to your other thread.

Yes avoid the ZF Box.

I think for around £5k you can get a very nice Mercedes, maybe an ML if you like taller cars.

The only other car that tugs my sleeve right now is the Volvo XC90.

Check these out and see what you think and tell us.

We're all concerned to see you go right. :)
 

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Discussion Starter · #19 ·
Servicing the box won't cause issues.

usually the adaptions have to be reset after a fluid change.
Yes, im sure the adaptations were reset, the box performed really well after the service, the issues gradually came back.

Well you could easily phone and make the enquiry , you can't ever verify a cars mileage 100%
It does seem a good price for a car with under 50k miles. It is a bit a far away but no harm making enquiries.

Is it just my failing memory or did the 6HP26 get less troublesome a few years into production? The early implementations seemed to be more prone to the lurch.

The other obvious point to consider is that any car that has done north of 100k will undoubtedly show some signs of wear and reliability is not going to get better with increased wear. It is a risk we take buying well used cars and that is why they are so cheap. Have to keep some cash in the back pocket for some remedial work.
I know higher miles will take its toll on any auto box however the chap on 'thelurch.com' had a 2003 s type, he was experiencing the problem and writing to Jaguar when the car was one year old.

Bertie I replied to your other thread.

Yes avoid the ZF Box.

I think for around £5k you can get a very nice Mercedes, maybe an ML if you like taller cars.

The only other car that tugs my sleeve right now is the Volvo XC90.

Check these out and see what you think and tell us.

We're all concerned to see you go right. :)
I had a Merc e class before the XKR, i did not really like it, i could not sell it for 5 months, im not going to buy another merc. I dont like the Volvo xc90 either. I used to like the idea of a luxury 4x4 but they still look like big boxes on wheels, style and handling does not compare to a decent car. I would consider a 4x4 if i needed one but i would rather have a good car.

I have been browsing through all the options, i dont like the dashboards on a lot of modern cars, thats why the older cars appeal to me more, I just seem to like the XJ x350 at the moment and it has that bloomin zf gearbox. The older XJ are lovely too but they look too much like old mans cars lol.
 

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Both Jaguar and BMW who use this box say sealed for life. ZF who make the box say service every 60K miles. At £400 it makes sense especially if you see the oil that comes out. The lurch is quite rare and occurred more in XKs than XJ etc.I had the box in my S Type and there was never an issue. I've not seen mention on the BMW forum either. I don't know the numbers of ZF six speed boxes out there but the lurch is in comparison very rare. One fix was for an additive as well as adaptations. Who changed the oil in yours? Jaguar? and indi? or a ZF specialist? I was told when I had the S type done that to do the job properly you need a link to the ZF factory to update the firmware and do the adaptions. I doubt most Indys and Jag dealers pay to offer this link.
The people who say the ZF is sealed for life are wrong. Who says so ?? ZF say so.
The lurch is an easy fix.
When properly looked after the ZF 6HP26 is a good bit of kit. It will easily cope with anything most drivers can throw at it. I know, if it can cope with Mrs V using the J gate AND the Sport button it MUST be good.
There's something wrong with that woman when she's driving.:cry:
 
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