First bring it to a reputable dealer or independent mercedes place with lots of years of experience.<br> - have the compression checked, transmission fluid,replace all belts(if need be), change oil,change fuel filter/airfilter<br> -have brakes/suspension checked<br> goodluck...luv my 84 turbodiesel(227.000)...it'll go a long way but repairs and maintenance maybe costly...goes with the teritory of owning a benz..but will be worth your while...clean it and change oil and fuel filters ...and remember to warm the car up(80) and idle down (5mins) before turning engine off.God bless.<br>