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Discussion Starter · #1 ·
In first and second gear - worse under load when accelerating - i get a whirring noise which gets louder as the revs climb, the noise drops again after the box changes to second. As i accelerate up through second the same thing happens again. Getting louder as the revs climb then going away when the box changes to third. From third onwards the noise has gone.

I wouldnt describe it as a whine for what thats worth. The box is a little clunky in first and second, sometimes giving audible clunks, mostly when coming to a stop. But from third onwards changes up and down smoothly.

Im aware of the very expensive repair/replacment costs on this six speed ZF auto. So im curious, is this the sign of something more serious ?

P.s Sometimes, especially in Sport mode, i get a symptom which sounds like the type 2 lurch.

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Discussion Starter · #5 ·
It ran low after a leak a few months back. They replaced the ATF with dexron 3. Which i then explained was not compatible and they then swapped it out for life guard. The leak was not long after i had bought it, so its hard to say how long it was low. There have been no signs of leaks since. I had the level checked a few weeks after the change and it was fine.

Would a low level not effect performance in all gears ? Like i say its only first and second which produce this whirring noise and can be a little clunky.

Thanks for the replys.
 

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low fluid is disastrous to the health of an auto gearbox.

Its possible the whirring/whining is caused by a damaged planetary gearset, or low fluid.

"edit"

the filling procedure for the ZF is very involved it's nothing like an "old" transmission!

Most mechies don't do a proper job and it's possible the fluid is still low.

link below shows how it should be filled

https://www.google.co.uk/url?sa=t&r...=MAMseFY8GpY&usg=AOvVaw3CkDBIkH4KRmcyPGqO5Rae
 

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The ZF box is a robust bit of kit BUT, it needs looking after very carefully. Correct fluid is an absolute must,(there are a few brands but the Shell/Lifeguard stuff is what ZF fill em with. Level is critical and it not just a case of 'fill it 'til it runs out of the hole', it a 2 (maybe 3 stage) job, it need somebody with experience.
Remember, the Torque convertor isn't drained so if some fluid has been in, removed, and refilled you've got to ask if the fluids were compatible.
Smith and Allen do a large drum of Lifeguard 6 for a decent price, might be worth buying and get an experienced fella to do a flush.
 

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Discussion Starter · #8 ·
Despite it being filled at the place that put the dexron in initially, i had the level checked at TL Jaguar near reading who i understand have a really good rep and alot of experiance. So - providing there havnt been leaks since - im fairly confident the level is fine.

As far as whether it was flushed properly is concerned, i had it done at a specialist, although to be fair they are the ones that put the dexron in in the first place. Not sure i can afford another £450 for a ATF replacment again. The whirring has been there for a couple of months without seeming to get worse.

Assuming its the gearset already damaged, and the fluid level is currently ok, anybody have any experiance with gearbox repairs and the likley costs ?!! :)
 

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