All the scheduled maintenance is fairly easy to do. The trans fluid is not a maintenance item, it is a lifetime fill. The only way to check the fluid is to buy the special tool dipstick and check level according to trans temp.

I think the 98 was a good year for the C class, and the V6 seems to have no common problems at all.

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Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record