Buyer is trying to push Pries now!

Moin together! I sold my Ford Fiesta about 1 week ago! The car was BJ 99 and was driven by my grandpa for 5 years and 2000 km. Then I got the car two years ago and I christened it now with 38,000 km. Before I left TÜV and Asu on it! The buyer wants to negotiate a price reduction now, because allegedly shock absorbers and crossbars have to be replaced… At the TÜV nothing was said about it!!! And 38,000 km is a bit little bit for He wants to send me a report but I don’t trust it! What do you think? Have a nice Sunday still Lord