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Thread: ZF' Gearboxes in Jags

  1. #1
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    ZF' Gearboxes in Jags

    Most of my work at the moment is demonstrating and selling Launch ATF 501S Auto Box Fluid Exchanger. I sell them mainly to specialists and the top 5 would be Land Rover ( mostly ZF Gearboxes ) BMW ( mostly ZF Gearboxes ) VW/Audi ( DSG and Multitronic CVT ) Mercedes ( 722-6 and 722-9 ). The 5th place would/should go to Jaguar Specialists as they mostly also have ZF Gearboxes.

    Understand, that this machine is growing fast in popularity and I am selling 10-15 units a month and that is growing. I have now sold them into every Country in the UK and also Eire. The reason I am writing this thread is upon analysis, in 3 years I have only sold it to 1 Jag Specialist.

    The importance of changing all of the oil, rather than 60% of the fluid, is obvious. My XF is just about to hit 40000 miles, and I will exchange the fluid properly using this machine. In fact, I would advise you all to do the same and look for an exchanger locally to do the job properly for you.

    Before anyone says it, ZF want us all to double change the oil that we can take out of the sump, usually 5 to 6 litres is dropped out, then more fluid is added. The car is run for 10 mins or so and then this 6 litres of brand new oil is dropped out again, and more is added, in the hope that some 80-90% of it is then exchanged. With all due respect to ZF who make amazing gearboxes, there is financial gain for them as they sell loads of oil with 50% being wasted, simply used as flushing oil and thrown away. Bad for the pocket, very bad for the environment, time consuming and inefficient.

    The machine I sell is amazing. Anyone interested, ask away, but I am particularly interested in hearing from anyone running a Jag Specialist, as I can't put my finger on why I am not selling these into them and I would love to hear as to why.
    XF 3.0 D Luxury 2010. And no, chemical fixes can be handy, but do not replace technicians.

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    Our indies have been changing the oil in the transmissions at around 80,000 miles. They usually use the kit supplied by Merc which also replaces the filter and plastic sump. This is a whol refresh of the oil, not a flush.
    2001 102,000 2.5 V6 X-Type Sport. Ivory interior. CD Changer.
    2003 66,000 4.2 V8 XJ8 Cream interior. Sat Nav. Rear Multimedia. Heated front seats. Auto lights. Auto wipers. Electric Rear Blind.

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  4. #3
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    Probably because Jag say the boxes are sealed for life and by the time the car has high mileage on it, owners are going to an indie or doing it themselves.

    I saw that Mackies Transmissions in Glasgow have a similar machine.

    1979 450SL - 2002 4.2 XK8

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    Yes there are all sorts of "transfusion" machines available. I come across many. The biggest advantage of the Launch machine is Load Cells ( weighing scales ) which can put exactly the right amount of oil into the vehicle. Plus the flushing facility as well.

    Land Rover were sealed for life apparently, that is now coming down from originally 150000 miles, to 120000 miles and now there is talk of sealed for life gearboxes having a 60000 mile service interval??? ZF want the oil changed at 60000, but I have to be honest, not servicing the gearbox is not because the gearbox does not need it. It is to keep the cost of new vehicles down when sold to lease companies. BMW, Land Rover and Jaguar all seem to have very extended intervals, but not servicing the gearbox keeps an expensive bill off of the "to do" list. Any technician worth his salt, would laugh at the suggestion that auto gearbox oil will last forever. In fact fully synthetic oils have a tendency to just drop out at the end of their lifespan. If the gearbox is then under load it is likely to cause a fault.

    Jaguars are the same ZF Gearboxes as others. Best advice, 40000 mile exchanges of oil .
    XF 3.0 D Luxury 2010. And no, chemical fixes can be handy, but do not replace technicians.

  6. #5
    Senior Member Jim_S-V6_2004's Avatar
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    Richard how often do you think the gearbox filter should be replaced, are there any clues or feedback of returns from your users?

    The other problem BMW owners have highlighted is the rectangular Mechatronics seal perishes and reduces pressure causing problems, and our members have also found the Mechatronics connector sleeve perishes and leaks too. So perhaps the right thing to do is replace all of these at the same time?
    Used to have: Superb Silver 2004 2.5-litre V6 petrol, ZF Auto box
    Don't believe anything I say - Alzheimer's is setting in!
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    Quote Originally Posted by Jim_S-V6_2004 View Post
    Richard how often do you think the gearbox filter should be replaced, are there any clues or feedback of returns from your users?

    The other problem BMW owners have highlighted is the rectangular Mechatronics seal perishes and reduces pressure causing problems, and our members have also found the Mechatronics connector sleeve perishes and leaks too. So perhaps the right thing to do is replace all of these at the same time?
    Jim a great question. What we recommend is a 40000 mile flush and exchange and an 80000 mile flush and filter. In the sump kits available, is a new seal for the plastic sump, a new oil pick up pipe, a new seal for mechatronic wiring, new bolts and more. If you do this job at home, be very careful with the bolt threads because they can cross thread so easily. To get to the mechatronic seal, there is sometimes a support in the way, which has to be taken off.

    The plastic sumps do often leak after a while and need to be replaced. Sealed for life instantly becomes oil spilling over the under tray to the garage floor! And of course the constant loss of fluid will reduce the 9.5-10 litres of oil, which has worked hard over a considerable amount of miles usually. The net result is fluid which fails to lubricate a gearbox under load then develops a fault quickly. A major repair is then needed, rather than the simple precaution of changing the fluid and sealing the system up properly.
    XF 3.0 D Luxury 2010. And no, chemical fixes can be handy, but do not replace technicians.

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    Yes, most owners here are aware that the sealed for life statement from Jag is a nonsense.

    Has anyone bought your machine in the Edinburgh/Dunfermline area?
    1979 450SL - 2002 4.2 XK8

  9. #8
    Senior Member Jim_S-V6_2004's Avatar
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    Thanks Richard.

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    Quote Originally Posted by RaceDiagnostics View Post
    Yes, most owners here are aware that the sealed for life statement from Jag is a nonsense.

    Has anyone bought your machine in the Edinburgh/Dunfermline area?
    I have a machine sold at Lochrin Autos in the centre of Edinburgh. And one at Mark's Garage, a Land Rover specialist. Mark's machine is older though. He has had some trouble with it and as I have moved on am not able to help with it.
    XF 3.0 D Luxury 2010. And no, chemical fixes can be handy, but do not replace technicians.

  11. #10
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    Hope I am not highjacking . Do we have a recommended list of garages to do the gear box fluid service ? North Essex for me

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