I just picked up my V70 from the body shop after a fender bender repair. the grill and hood were both repaired. On the way back from the shop, I noted that the clock was reading --:--, so i figured that they disconnected the battery during the repair. within a mile of the shop, i slowed down for a traffic light and the car stalled (it has never done that). i noticed that the gas gauge was pinned on empty. I limped several more blocks, stalling along the way as if out of gas, and coasted to a gas station. it only took 2 gallons and was almost full, although the gauge still says empty. i was able to limp back to my office, called the shop and they won't take responsibility for this. It is now at the local Volvo dealer and they are running diagnostics and have "multiple failure codes". It runs very rough, and alternately runs lean, then rich (according to the dealer). What could have happened at the body shop? Could a fuel sensor or module somehow been fried? Anyone have any thoughts. The car ran beautifully before the repair. 106k miles.