warning lights and speedo

Hello, About a year ago, I purchased a 1996 C class, C180, Esport, petrol, 1.8, automatic, RH drive, 120,000 miles, W202? I live in Cornwall UK, by the sea, and I’d like to use this car until at least 200,000 Just whistled through MOT, with only a few advisories, but I’d like to get hold of a...