99 C2 Cab Tiptronic Fluid Change

[goldgun]

Hi Guys

have a 99 C2 cab with 30000 miles,should i change the fluid,i read alot about it,what fluid to use,seems you need a few special tools to get the fluid in,is it better to let a porsche dealer or other porsche guy to do it,i wouldnt want to do it and do the wrong thing,any info appreciated

Thanks

Albert

[PAULSPEED]

Once you get the new fluid in, you then need to

run the car on jacks and change gears.

I took mine to the dealer to do when I had 50,000

miles on it. It took them longer then the estimate

but they charged me the estimate price.

This is one thing I will have the dealer do. An independent

has a real tuff time getting the fluid. It is special fluid

and comes in 55 gallon drums.

Paul

[minny]

Once you get the new fluid in, you then need to

run the car on jacks and change gears.

I took mine to the dealer to do when I had 50,000

miles on it. It took them longer then the estimate

but they charged me the estimate price.

This is one thing I will have the dealer do. An independent

has a real tuff time getting the fluid. It is special fluid

and comes in 55 gallon drums.

Paul

Porsche gets the ATF delivered in 20 litre drums and if you buy it from them they charge a ridiculous amount per litre. You need about 5 litres for a fluid and filter change. The ZF boxes on the earlier cars needs the ESSO LT 71141 fluid. I've seen others that state they are compatible with the Esso stuff, but here in the UK we have a few places that sell it in litre bottles and don't cost that much more that the other brands. ZF themselves say the Esso fluid is the only approved one and when you actually see the Esso ATF compared to the other ATF it is quite different. Its actually more like manual transaxle oil. The reason they use the special fluid is that the torque converter in the ZF boxes are constantly slipping a little in use and the Esso ATF is supposed to be formulated to meet the friction required for the correct amount of slip. I'm sure an engineer will probably add that all torque convertors slip a little anyway which is probably right but the ZF ones have slightly more than others in a controlled fashion, hence the correct ATF required. Have a look at the DIY section of this forum to see what is involved in the ATF change.

[2000996MIA]

I just did the Trans fluid/filter in my 00 Cab Tip. We used Pentosin for ZF. IIRC, it had the 71141 # on it... it didn't seem messy, it was slightly; but the car was on a lift. It would be a bear in a private drive with the rear wheels off the ground. I read on RL it was 5 litres, but with spillover, it was pretty much 6 litres. you have to pump the fluid in thru the fill plug hole till it starts to dribble over the lip. have a catch basin, plenty of rags. In order to pump fluid into the fill plug, my mechanic used a hand-pumped pressurized container.

As one person fills, the helper changes the gears; R, N, D back and forth ..not too quick...Have the E brake set to avoid the wheels from spinning...

be careful...alot of things can go wrong with this DIY....

I guess I won't be doing this for another few years....