ZF AUTO WON'T CHANGE GEAR WHEN COLD

CatmanV2 said:

This is a ZF?

C

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Oneball said:

Is the gearbox cold or warm?

Warm - check the level

Cold - check the level or seal in the valve block has gone so there’s no oil in there when it’s been sitting.

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MC_Bob said:

Flushing oil, changing all seals made a whole load of difference to mine, yours might be burnt fluid. I did post a thread a year ago.

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MarkMas said:

On a couple of very cold evenings, recently, I have had the 'MSP Failure' light come on and the gearbox seems to refuse to change up. So as I accelerate, the revs go up and no gear changes take place. Sliding the gear lever over into manual works fine, and I can do manual gear-changes (no flappy paddles on mine). Problem goes away when a bit warmer, with a restart. Thoughts?

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safrane said:

Although it is often over simplified, Wheeler Dealers did a ZF gearbox with similar shifting issues. As others have said, a oil change and new filter sorted it.
I seem to remember that. That was a boxster too wasn't it? Never know what additionals they do that they don't show.

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