MB recommends a coolant change every 30k, and i'd guess your car went a LOT longer than that in between.

Use the MB coolant, it is recommended, and after the flush and refill and pressure test, maybe a new thermostat/radiator cap would be a good investment, and make sure all the hoses are good, including the bypass hose.

Your car is the very desirable Sportline model, with uprated suspension and seats, not a run of the mill 190. The 2.6 motor puts out a robust 185 hp, so it's not the fastest ride in town and you won't smoke every "Type R" around, but it is very well balanced and handles extremely well,

AND, it is a very good looking car, so get out there and CLEAN THOSE DIRTY WHEELS and wash the car!!!

The 190 Revolution website is full of great information, and if you look in the website gallery for cars of the month, you can get a good idea of how stunning yours could look.

A Sportline 2.6 is about as good as you can get with the 190, except for the EVO Cossie.

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1991 560 SEC AMG, 199k <---- 300 hp 10:1 ECE euro HV ...

1995 E 420, 170k "The Red Plum" (sold)

2015 BMW 535i xdrive awd Stage 1 DINAN, 6k, <----364 hp

1967 Mercury Cougar, 49k

2013 Jaguar XF, 20k <----340 hp Supercharged, All Wheel Drive (sold)