What should I do if my Audi A8's engine won't start?

I have an Audi A8 and I'm having trouble starting the engine. The ignition seems to be working fine, but the engine just won't turn over. What could be causing this issue and how can I fix it?

First, check the battery to see if it's dead or low on charge. If that's not the issue, it could be a problem with the starter or fuel system. I would recommend taking it to a mechanic to diagnose and fix the problem.

Make sure the gear shift is in park or neutral, as that can sometimes prevent the engine from starting. If that's not the issue, it could be a faulty ignition switch. I would suggest taking it to a trusted mechanic for repairs.

Have you recently changed the fuel filter? If it's clogged or dirty, that could be causing the engine to not start. Try replacing it and see if that solves the issue. If not, it could be a problem with the fuel pump or injectors.