Is This Normal?

[Opposite Lock]

Hello...Porsche newbie here. I'd appreciate any replies as to whether the following symptoms are common with Tiptronic:

1. In manual mode, gear changes below 2000RPM are crisp and clean. Over 2000RPM, the change slurs for a couple of seconds, similar to a clutch slipping on a manual.

2. Also in manual mode, in all gears from 2nd to 5th, there is a kind of 'kickdown' effect under light power, with the revs rising ~200RPM. There is no gear change indicated. It's almost like there's a half gear between all ratios. In auto mode, the car can't seem to ascertain which map to use. The gear changes are all over the place. There is the same 'kickdown' effect with the revs rising 200RPM without a gear change being indicated.

3. On the over-run, when the revs drop to ~1000, the engine seems to try to get to tickover, but can't get past 1000RPM, resulting in a grabbing effect (like the brakes were grabbing on and off).

This is a 12/99 Boxster S with 56,000kms on the clock. The transmission oil and filter were changed just six months ago. It has been maintained by Gemballa Hong Kong with services every 5,000km.

Many thanks,

Ed

[Beelzy]

My Tip tranny does not do that. It shifts nice and tight.

Sound like its time for a diagnostic session. I would look for anything loose as in electrical coonectors etc. around

the transmission. Seeing how it was serviced recently, maybe they inadvertantly unplugged a sensor.

[Opposite Lock]

Thanks, Beelzy. I knew it couldn't be right. It's actually unpleasant to drive as it is.

It's going in to Porsche Hong Kong for some other work (ignition cylinder, remote) next week, so I'll have them look at it. I'm beginning to think I bought a turkey. :(

[Opposite Lock]

Just to update this thread - Porsche Hong Kong reprogrammed the transmission (free of charge) and it's much improved.