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Recommended Posts

Posted

Okay, doing some further on road testing with my new toy (2004 CTT - 09/2003 build date) and it seems that the transmission has occassional harsh downshifts in D mode. I checked it today using the tiptronic feature and it seems fine with smooth shifts in manual mode. I also checked the tiptronic module and there are no DTC's showing. There seems to be a firmware update for the tiptronic module and also an electro-hydraulic valve issue. I checked the TSB's but none of them seem to match my symptoms exactly. Anyone heard of this issue before?

  • Moderators
Posted

There is a update available, but 95% chance the car needs a new valve block.

Posted

Good to know... thankfully the warranty I bought with it should cover this. I will be sure to bring this up with the dealer at the next service. Thanks

David

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