Boxster S tiptronic hesitation

[Daniel Trofin]

Good morning,

 

Tried to search and didn't find much, have a small issue with my wife's boxster S, year 2001, tiptronic, only after it is reaching the proper temperature sometime will have a bigger gap when will change between 2 to 3, this will be there even will change manual...is 1 second at least, sometimes goes away during the drive or not. In the same time will drop from 5th to 4th with a kick...harder than normal, again some time will go away if i will drive more "gentle"...

 

Appreciate your advises, the car has 117.ooo km, when is cold shifts normal.

 

Tnx in advance.

[wizard]

Hello.

Has the ATF / filter ever been changed? If not, that would be what I would focus on first - the condition of the fluid and the level.

[Daniel Trofin]

Hello.

Has the ATF / filter ever been changed? If not, that would be what I would focus on first - the condition of the fluid and the level.

Hi Wizard, tnx for your reply,

 

No i didn't replaced any of them, i ordered already them and this will be my first step, 

 

From my own experience with my previous car, a BMW, when the gearbox oil level was lower the car was hesitating with cold engine, later on was working normal, this one is doing the opposed, not sure how the valves are behaving when they are getting spoiled...

[wizard]

Yes, it's odd that the problems occur when the fluid is hot. However, I'd still go ahead with a fluid/filter change before considering the much more expensive options.

I'm about to do this myself. Our car (MY 2003) spent ten years in Bahrain before being shipped here. I suspect that the temperatures out there shortens the life of ATF .... and coolant.

As you appear to be intent on doing it yourself also, I'm sure you have read up on the procedure.

From what I've read, if you're not planning on using Porsche ATF, Pentosin ATF-1 is the only other recommended fluid for a Tiptronic.

[Hilux2400]

Although Pentosin ATF seems to be a frequently used fluid I notice that when looking at the ZF website that for the 5 speed box, ZF recommends  ZF Lifeguard Fluid 5 and ZF Lifeguard 6 for the 6 speed box.  Is there any preference on choice of fluid. 

 

It is also of interest that ZF recommends a transmission oil change every 80 to 120KM or after 8 years at the latest.

 

http://www.zf.com/global/media/medien_mastersite/products_services/service_information/sitematrix/transmission/cars_4/englisch_3/modelluebergreifend_1/ZP_SI_Oelwechselkit_EN.pdf      

[wizard]

Thanks for that.

My car is a 2.7 MY 2003 - 5 speed Tiptronic S. Would that be a ZF gearbox ?

My ATF is clearly in need of change after 14 years.

[JFP in PA]

I would not let the trans fluid go that long.  Because you can only do a partial drain on these transmissions (the converter retains a large amount of fluid that will not come out in a gravity drain), we adopted a 5 years/50K miles maximum service interval for these cars, with an even shorter interval for a car that is tracked.

 

Fluid is cheap, transmissions are not; and we have seen too many Tips acting up that had literally black as ink fluid in them which smelled burnt long before the factory recommended service intervals that responded positively to being serviced.  On occasion, we have had to drain, fill, run, drain again, etc. multiple times to get them back to normal operations.

[wizard]

Thanks JFP in PA.

I'll be doing the necessary, and that is good to know for the future.

[Daniel Trofin]

Hi wizard,

 

Thank you for your suggestion, i left the car in the shop already today as i'm afraid to drive it like this, we will first change oil+filter and we will see if the issue is still there, shop manager was saying that is strange that is doing this only for 2 to 3rd gear and not for the others...might be something else in the middle...i will post the updates when i will take the car.

 

Would love to do the job in front of the house... unfortunately here is very hot!!!, 

 

 

Yes, it's odd that the problems occur when the fluid is hot. However, I'd still go ahead with a fluid/filter change before considering the much more expensive options.

I'm about to do this myself. Our car (MY 2003) spent ten years in Bahrain before being shipped here. I suspect that the temperatures out there shortens the life of ATF .... and coolant.

As you appear to be intent on doing it yourself also, I'm sure you have read up on the procedure.

From what I've read, if you're not planning on using Porsche ATF, Pentosin ATF-1 is the only other recommended fluid for a Tiptronic.

[Daniel Trofin]

Problem solved for now, oil was very dirty, i tried the car for 20 min, all works ok , a small hesitation like a kick in the *** from 5 to 4th, i believe is something from the drive-shaft....i will check, however all looks fine now, tnx for help.

[wizard]

Hi Daniel. I hope it's fixed .... and I'm sure your wife does too (-: