u/Horus_Anubis

Hi all, I am considering purchasing a late LCI 540i offered by a BMW dealer. I had it inspected by an independent vehicle inspector. The car appears to be fine, except for the wastegate valve, which is making noise. It is possible that the previous owner had a power-increase tuning box installed and used the car extensively. All other aspects seem to be fine.

I am currently trying to negotiate with the dealer to have the turbocharger replaced under warranty, which would resolve the issue. However, because of the issue with wastegate valve, I am also wondering about the condition of the cylinders and how the look. Any other places to look into?

Thanks for looking into this, I appreciate your help.