1997 Mercedes C180 Euro 5sp auto

[Hocky]

I have just bought another C180 as I like them and like the one before, I did it without getting any inspections done, thats me. I would appreciate it if any owners of similar or larger engined models of the same year up to 1999 would be so kind as to list for me any thing to look for that this model may be known to have faults in like the engine, the elects, the trans, the cruise, etc. I have made this mistake before, but have done it again, so don't tell me what I should have done first. Please get to the point and list things I should look out for and fix them before they get worse and leave me stranded on a highway.

Next question is whether the 5sp auto is reliable, if it really has 5 forward speeds or other and the gear ratios as such.

Can I put in alloy rims say from 15" to 17" or not? Can I put in tyres from 195 to 215 or even 225?

Can a non-OEM CD changer and controller(radio) be fitted easily as this car has radio/cassette only?

Thanks for your valuable inputs guys. Cheers.