Anach

Found the problem thanks to MV autos, we had missed the shift control linkage, which had hidden itself inside the housing.

Oops, please forgive the spelling mistakes - I was in a rush to get to bed, and there doesn't seem to be an edit button!

My friend and I thought we'd attempt to replace the shift solenoids on my R34 tiptronic as the very common shift solenoid B fault showed up and the box was stuck in limp mode; it had originally been an intermittent issue, but eventually became permanent. The job didn't sound or look very difficult; drain the fluid, remove the control valve and replace the shift solenoids, then bolt it back together and flush the system with new fluid. However, upon reassembly, the box would only move forward. Manual shifting up and down would work fine (unlike prior to attemped repair), but reverse, neutral and even park would attempt to move the car forward also. We assume we got something wrong, or missed a step, as neither of us have any experience with autos, and it obviously doesn't work right. The main problem is the lack of good workshop manuals; the service manuals available only appear to have troubleshooting and service proceedures; what we need is a Haynes style manual that shows a complete pulldown proceedure, but I haven't found anything along those lines. Has anyone got an idea of where we went wrong, we'd appreciate the assistance? We'll attempt to pull it down again over the next couple days.

Thanks for the reply. I'll look into it!

My completely stock R34 sedan seems to have developed an intermittent issue with the gearbox and/or engine management. From time to time, maybe once a month, one of the lights will come on; If the gearbox light comes on, I'll be stuck in 3rd, and if the engine light comes on, the engine starts to miss. Both issues are rectified as soon as I turn the car off and on again. Is this a common issue, and does anyone know of possible causes or solutions?