I'm new to this Bulletin Board but have owned a number of Mercedes. My current daily driver is a W124 1989 model 300E. Its in extremely nice shape and quickly approaching 120K on the clock. I'd like to tackle the majority of the 120K service items myself. I recently changed plugs and air filter. Do I need to replace rotor and distributor as a part of this service? Can you offer a summary of the requirements, parts, and challenges that I face? Would it be worth while getting a service manual for this?

Thanks for your help.

Spark plugs, check cap and rotor, air filter, change oil and filter, replace fuel filter, service transmission- replace filter drain converter and replace pan gasket, flush cooling system and replace coolant, bleed and replace brake fluid, rotate tires, check brake pads, replace wiper blades, check all ball joints and tie rod ends, check tire pressures including spare, check all lights, windshield washer fluid, power steering fluid level and leaks. And the most overlooked is check the battery electrolyte level.