Following the demise of my W124 , I started thinking about a replacement . My first thought was another W124 estate , but I soon realised that good ones are thin on the ground , besides that I only need estate capability occasionally and I want something reasonably cheap to run , so a smaller car would do . Preferring not to go too modern ( for ease of DIY servicing ) I started looking at W202 estates - alas , the majority seem pretty tired as with the 124 ones ; I then realised that W203 models can be had for very reasonable prices . Since I still have the 500 , I don't need a rocket ship and am looking for something I can run daily on my 35 mile commute without spending a fortune on fuel . I started looking at C220 CDI estates , but there are a lot of high mileage run down examples ; I then noticed that for the same money the C180 petrol ones tend to be lower mileage and better condition . My theory is that business users who cover high mileages and don't particularly care about their cars probably buy diesel ones , and petrol ones are perhaps more likely to have belonged to private buyers ( wealthy elderly/retired people ) who look after them . Taking into account diesel vs petrol price differences against mpg for each type , I don't think there will be a huge gulf in running costs - time will tell . What I'm looking for here is any wisdom from people who have run these cars ( W203) and anything particular I ought to check for ? I haven't read of any shortcomings on the forum thus far ? The car I am going to look at this weekend is a 55 plate C180K SE Avantgarde estate with 90K and FMBSH and looks very tidy going by the photos in the advert . I guess at that age we are past the rust issues , and I will check whether or not it has a Valeo radiator . Any comments will be appreciated .