We are a small Tier 1 automotive manufacturing facility and we are re-locating in 2 weeks. We of course have been asked to re-submit our PPAP's after the move. When they ask for a Level 3 submission, does that mean we have to go through all of our validation tests again? The only thing that is changing is our address.

You are changing your adress together with your production.
This means that the machines etc are in a completly different environment, have to be leveled etc.
I beleive that they are justified in Level 3 PPAP.

I agree with Howard.