2000 Volvo S80 525xi AWD

Vehicle does have mechanical issues. To start off with it was not the vehicles fault but rather a faulty part that was installed into the vehicle. I am showing a check engine code that says timing advanced . The vehicle can still drive but sounds like a diesel. I would estimate to go through me that this can be fixed for roughly $500.The interior of the vehicle is in rough condition and is leather. The passenger front window has a crack in it. The exterior is in excellent condition and paint looks good. Custom wheels.   Ice cold A/C. Looks & runs great. Looks & runs great. Perfect first car. Power everything.