um from my one if you can get under the car - check brake lines arent leaking, cv boot isnt ripped, exhaust has been welded on properly (these are things which i had fixed within 3 months of owning the car under a 2nd hand car warranty). Um, apart from that i would say just the usual stuff - knocking sounds, tyres on the car, brakes, that theres no sound coming from hubs, fluid levels, lights on dashboard etc oh and the boot lid dont forget to check it incase its seized (mines needs some WD40 sprayed on it to stop it seizing up not a major thing).
really i cant think of anything else...
Remember the cold light will be on for a bit when the car is running until the engine has heated up usually less than 5mins of driving in a village