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Tiptronic Transmission glitch

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My transmission recently had two glitches when driving on Sebring at high speeds:

1. It went to "limp home mode" (third gear and no indications on the dashboard as to what gear it was in or what position the shifter was in). A red light came on the dash indicating the problem.

2. It stopped driving totally, as if I had moved the shifter to neutral.

In both cases things would reset if I stopped. For glitch number 1 I had to stop and re-start the engine for it to reset. For glitch number 2 to reset I had to stop, put it in Park, and go again.

I have a transmission leak. Could the above be a result of low transmission fluid level?

We did check error codes with an aftermarket code reader. It would connect with the engine ECU and give a TipTronic issue including that the transmission had slipped, and something about low voltage.


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Hi there!

Sorry to hear about the troubles.

Do you have the trouble codes that the code reader provided?

Do you have a friend with a Porsche and a Durametric or PST2 or PIWIS that can connect to the transmission computer and read out the codes?

Hope it's something simple!

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Yes, Low oil level could cause a problem, but more likely Transmission over temperature will be the cause. If lower than normal oil level then even less cooling.

you really do need a Durametric or PST2 to read any codes.

Transmission Slip.....understandable

Low voltage:?????? poor connector to from tCU to Gear Box, normally gets all the road dirt and moisture??

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