So my B5 A4 1.8TQ acted up the other day, when it was -35 here in Winnipeg (I park outside). The transmission (auto) seemed to be stuck in 4th gear, excepting park, reverse, and neutral. D, 4, 3, and 2 had no effect, and pulling away was really sluggish. It revved at around 3400-3500 at 100km/h, which is why I think it was 4th. It wouldn't upshift or downshift ever. I had no CEL come on, either. I drove it gently to university and parked. About 6 hours later, after classes were done, I got in it, and lo and behold it shifted! It was hard shifts for a minute, then seemed normal. Still no CEL, but it is I think in limp mode, as it boosts at maybe max 7 psi, 5-6 consistently. It should hit 15 at WOT. Any ideas? Or alternative, anyone out in my neck of the woods on here with a vag-com? I don't think this matters, but last weekend (the 10th) I replaced the battery.
Anyone have similar issues?