thanks for your detailed reply! I used to live in ATL but now reside in delaware hah. I may try contact an independent shop that works on a lot of Porsche’s….but yes I’m worried they won’t be able to get the parts or want to work on it. Someone in this thread mentioned they haven’t really heard of anyone needing a new transmission as it seems like it’s always the mechatronic. Do you SUSPECT that if I got that changed that I’d be fine? I may consider just doing it and then quickly selling the car…You do have a problem. The Cobb unit will not read transmission codes,
Before discussing worst case scenario let's start with basics. With that mileage you cannot expect any help from Porsche and taking it to the dealer will be very expensive. If you decide to take it to the dealer it seems that depending on the dealer and "what they find" will depend on what they recommend.
1- a lot of dealers will just want to replace the transmission at the cost of $20,000+.
2- Some will attempt to replace the mechatronic unit/ fluids with no guarantee that will fix it, at a cost of $5-6000. If that doesn't work then they will want to replace the transmission...with no rebate for the previous work.
I would suggest:
Find an independant shop that will work on it and have them diagnosis the problem.
You didn't say anything about clutch slip so I will assume there is none. Plus the clutch is pretty robust.
Let's say a good fluid change with internal and external filter change is tried and that did not work....sometimes it does, but if you changed the fluid etc at 80k miles then it should be good. If it does work ...great ! It is a low cost try.
You got a code of transmission control system malfunction. That can mean any sensor in the transmission. More than likely it is your mechatronic pack.
Now here is the problem. Porsche will not sell you or any garage parts needed to fix your transmission. So with that in mind you or your garage have 2 options :
1- canabilize a junk yard transmission for the ones you need. You are in luck concerning the mechatronic pack as all trim level and year model mech packs are interchangeable sans the transmission control unit.
2- source the needed parts from some outside vendor.....the parts sourced will not be Porsche parts and most of the time that is ok. Our transmission is basically a dl501 ob5 model VW/ Audi model transmission. I have heard some have ordered parts through Audi although the parts are not listed as fitting the Macan some do fit. Your garage needs experience and is willing to invest the time needed for this detective work.
You are going to find that a lot of garages do not want to work it and do not have access to factory level software needed to finalize the repair.
Good luck with this...it is not a good situation. I wish you were close to Atlanta I would be glad to work with you in getting it fixed.