Has anyone with a tiptronic transmission have issues like this:
Starting in in D, 2nd gear, rear end 'clunks' slightly then it shifts immediately to 4th gear, bypassing 3rd gear and will not shift on it's on after that. The red light blinks alternately between 4th gear and D. You have to stop the car, move gear shifter to Park and shut it off. Sometimes the check engine light comes on. Scanning with OBD, codes are 0740 and 0753, torque converter and shift solenoid. Once codes are cleared, it shifts fine for a while, sometimes 100 miles, or more, sometimes much less. One mechanic says shift solenoid needs to be replaced(after we paid over $300 for 1 liter added to trans) due to it being low. Porsche dealers states new transmission for $12,000. Our mechanic said it was a "ghost" thing with Porsches. Sometimes it happens, sometimes it won't. Just have to live with it.
Putting mechanics and dealers aside, has anyone had this happen to their tiptronic transmission and if so, what did you do to fix the issue. I'm at a loss. We just got this Boxster on the road, safely, after complete tune up, new this, new that, etc. About $4000 worth of work done and now this starts. Any ideas? Thanks in advance.
