A week or so ago, i went to Germany on LH, estimated departure time was 615pm as our A346 (D-AIHF) was arriving late into Denver from Frankfurt. As departure time got close, and i was milling around the gate area, with no airplane in sight, i see an airport vehicle, lights flashing come up, the driver spoke to a couple of rampers who then jumped in a tug and followed the airport vehicle across the tarmac, then the other shoe came down, as the gate agents announced that the aircraft had landed but was having to be towed from the runway to the gate due to the nosewheel steering failing. We were further informed by the crew, once we boarded at around 9pm, that condensation in the nosewheel had caused the failure, so here's the question, does the A346 not have the standard steering wheel as other aircraft do? or does the fly by wire nature of the plane mean that the nose gear is steered with the sidestick controller? How would condensation affect the nose wheel steering?