Can the Tiptronic ATF get contaminated with diff lube?

[quattrogeek]

If the failure is similar to what we usually see, you won't notice much of anything, except maybe slightly higher revs when the clutch really wears out. The torque converter will operate normally as a viscous coupling, but it won't lock up when in the highest gear. We've never seen one really hurt anything. I'd make sure the shop you're using is replacing the fluid filter as well - Audi and VW don't have a service interval for the fluid and filter, and it's just crazy. Normally when we replace the fluid it's as black as used motor oil, and the new, clean fluid is the color of honey!

[Dale_K]

Thanks for the info. I'm probably going to drive it a while and leave it alone unless it gets a lot worse. The shop still has the car so I don't know what to think right now.

[Dale_K]

I picked my car up from the shop yesterday, without a Tiptronic service. The mechanic pulled the fill plug and got a chance to see and smell the fluid. He said it was not contaminated with diff lube in the same way he's seen in a different car. He recommended I think twice about a full service because he couldn't recreate the 0740 code and the car acted normally in his view. I was still inclined to go ahead and do it but he told me it would cost over $500 to pull the pan and replace the fluid. That's a lot of money and I'm thinking I could do it myself and save $350.

The only thing that worries me a little about DIY is removing the braces and pan that have to come off to reach the pan itself.

[jcb986]

Go to Pelican Parts and read the DIY on how to do the service. You will need 9 liters of of ATF fluid, the kit, torque wrench, Torx sockets and a digital in-fared thermometer. You will need to put your boxster on stands and be sure it's fairly level. Good Luck...I did mine and it took about 2 1/2 hours.


The pan is the easiest part.....