weird tiptronic behavior

[ChrisTsangaris]

Hi,

So my 06 911 S started acting weird. Whenever i get on the gas the car has full power but then as soon as i reach the revlimiter the tiptronic transmission is not shifting to the next gear and just bounces off just below the red line , the gear wont change even if i let the car slow down, the gear only changes if after i ease up off the gas and i press on the tiptronic button. This behavior occurs both in automatic and in manual (tiptronic mode), no errors on the dash

 

thanks

[ttocs]

How many miles on the car?

How many miles since last trans fluid/filter change?

[ChrisTsangaris]

63000, still on the original trans fluid

[JFP in PA]

3 hours ago, ChrisTsangaris said:

63000, still on the original trans fluid

 

Should have been changed 20K miles ago...……...

[ChrisTsangaris]

I checked with Porsche they said regular intervals are

997 - 120,000 miles or 12 years

[JFP in PA]

Just now, ChrisTsangaris said:

I checked with Porsche they said regular intervals are

997 - 120,000 miles or 12 years

 

These are the same people that tell you it is OK to change your oil at 15-20K mile intervals.  We change our customer's Tip fluid around 40K miles, and what we drain out looks absolutely awful.

[ChrisTsangaris]

ok sounds good, ill have them change it to see if it improves , hopefully nothing is damaged, it behaves normal only in regular driving, it only starts acting weird when i get on the gas hard then it never changes to the next gear

[JFP in PA]

Just now, ChrisTsangaris said:

ok sounds good, ill have them change it to see if it improves , hopefully nothing is damaged, it behaves normal only in regular driving, it only starts acting weird when i get on the gas hard then it never changes to the next gear

 

Cheapest thing in that transmission is the fluid; it becomes exponentially expensive from there...………..

[ttocs]

JFP is very wise and has provided sound advice. Frankly, from my own experience and of those I know personally, JFP's advice is conservative - in every sense of the word - as it relates to Tiptronic maintenance. And please be sure the service is done by someone with Porsche Tiptronic experience and using Porsche recommended fluid, not something that is "like" the recommended fluid.