I recently purchased a rather nice W220 S320 CDI 2005 MY. As per normal I have a independent MB specialist go over the car. I knew of a couple of existing faults.. 2 glow plugs out and one of the horns dead . He called me this afternoon with a cash paid bill price of £1,600.00 I know these were expensive cars when new and still are to maintain, I have a A4 binder full of invoices from the previous owner ( spending £7,500 in the last 3 years ) sort of prompted me to buy the car. Plus i bought the car pretty cheap for what it is. Faults identified by my Indy. 2 glow plugs he said I may As Well change all 6 makes sense. Glow plug module kaput... Water pump replacement and belt.. Leaking and kaput according to the Indy. New dual horn Rear boot lock! The cars battery light came on I guessed alternator he said the drain is coming from the boot lock it's electrically operated only way to remedy is new boot lock. Had a new oem battery Dec 17 plus full airmatic suspension replacement and inlet manifold along with turbocharger! The previous owner purchased a Tesla. All parts are MB oem apart from that he said the car was excellent and one of the cleanest he has seen... Does this seem like alot of money for what is being replaced. I have no idea on labour times to replace items. Any input greatly appreciated it's a smashing car and I am aware 13 years old things wear out. I intend on keeping the car for 3 to 4 years. Zero rust which is amazing on a w220.