Car repairs

(and when i say jon snow i mean me)

CAR MINDED PEOPLE. What kind of repair could conceivably be done on the side of the road with one person who is decently knowledgeable about cars and one who knows absolutely nothing?

You would be surprised how many people don't know how to change their own tires.

Though if you want something a little more dramatic, you could have knows-nothing hit a deer (or a sufficiently large animal) and dent their front end. Sometimes this results in the headlights popping out to dangle by their wires, and if this happens at night, even if the car is still technically drivable, headlights that don't point in front are a bad idea to drive with. It's possible to pop the headlights back in, realign them so that knows-nothing can see the road ahead, secure the headlights in place with some duct tape, and drive off into the night again, which is something knows-cars could help with.