My 2 pence worth......
1. ABC - Check all the struts and hydraulic pipes for leaks or misting, check the ABC fluid is green (not brown and definitely not black), check the ride height all round is even, check the ABC goes up and down smoothly (test multiple times).
2. SBC - not much you can check on this other than that the breaks work, also check that the hold function is working.
3. Roof - Check that the roof operates smoothly multiple times.
4. Water drains - Check all drains are clear and not blocked, particularly the drain in the passenger side air box under the bonnet vent and the 2 drains below the rear window. Wet/damp carpets on the passenger side indicates a blocked air box drain (this can cause multiple electrical issues), wet/damp carpet in the boot indicates possible blocked drains and/or leaking rubber boot seal (this will cause the boot floor to be wet and possible PSE pump failure. Whilst in the boot check the sponge around the PSE pump is dry.
5. Check everything electrical works.
6. Look for engine breather cover gasket leaks, if the gaskets are leaking the oil drips onto the exhaust manifolds. A relatively easy and cheap fix.
7. Make sure the wind deflector is included with the car, a replacement will cost about £300 to replace and is essential IMO.
8. Make sure the AMG badge on the boot is removable
9. At that age and mileage the ABC pump will be due a replacement so check if it has been done, check the usual services have been done and the spark plugs are not the originals!
