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An Independent Porsche Specialist providing Low Mileage High Specification Porsche for sale

Still having tiptronic limp mode problems

What year is your car ?

2002-2005 on a cabriolet then the control unit is situated by the bottom bolt of the drivers seat belt , you remove the drivers seat , remove the boot/bonnet switch pack , remove the o/s/r panel , pull up the carpet then remove the plastic guard and you can get to it .
 
The fault will be the gearbox conductor plate. Not an expensive fix unless purchased from Porsche. I had it on my SL500, about £150 for the plate and labour for changing plus new oil and filter.
 
Is the conductor plate the same as the control unit please?
 
No, different parts. Look on ebay for Mecedes concutor plate, its a plastic part that takes signals from the plug to the solenoids via conductive tracks. Sounds fancy but it isn't. Video belwo explains it. Its a little bit more work than a standard gearbox oil change

https://www.youtube.com/watch?v=k3qrSDfK7SA

Porsche part number is 140 270 056 1. Ebay is cheapest route
 
Watched he video and found a German seller for the part. The filter and oil were changed around 5,000 miles ago. If I just replace new fluid the filter be ok I guess? Do I need to orde any other electrical,parts? Do I need a gasket for the gearbox sump? The video said there was no gasket as its metal? Did not sound correct? Sorry to be asking such basic questions but it's not really my forte I'm afraid.
 
Demort it's my plan to show the test plan to the garage which replaced the exhaust and see how confident they are at following it.
I am concerned about the costs and indeed who I can trust to repair the fault. Is it possible to replace the wiring looms which may be at fault? My problem is I'm away again tomorrow night until Friday then I'm away again in another four days. I get little time to chase these things and I'm looking to cover all the bases if necessary. I don't know a Porsche specialist near me I'm afraid.
 
The car is a 2003 3.6 litre convertible.
 
There must be some decent indy around that part of the world. It just appears that you have little time to sort this and trying this and that costs money and time. The list of possibilities is mounting up. Can someone here recommend a good indy that you have your car trailered to and let them sort it out?
Alternatively there is OPC Leicester - and they can collect the car if its driveable.
 
Found a local bloke who seemed to know what he was doing. Does auto transmissions for dealerships apparently. Coming out to check the connections/ wiring and test/ diagnose and hopefully rectify my issue. He is mobile which is a big advantage. Start at the beginning with a specialist bloke I think is my best way forward and I am Away until Friday anyway.
 
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