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According to the service booklet that Mercedes-Benz supplied with my car, this is what the A and B service consist of:

A-Service - First visit at approximately 10,000 miles or 1 year, but determined by Flexible Service System; then every 20,000 miles or 2 years.

Services performed:

Interior

  1. Function check
  2. Check warning and indicator lamps, illumination and interior lighting
  3. Check windshield wiper, windshield washer system, headlamp cleaning system
  4. Reset maintenance service counter in instrument cluster
Wheels, brakes
  1. Check front brake pads for lining thickness
  2. Check tires for damage, condition
  3. Correct tire inflation pressure

Engine compartment

  1. Change engine oil and filter
  2. Fluid level checks of the following:
    1. Engine cooling system, antifreeze and corrosion protection
    2. Windshield washer system
    3. Brake system
  3. Check and correct battery fluid level
  4. Check battery condition
  5. Check catch, safety catch and hinges on engine hood for proper operation

Trunk

  1. Correct tire inflation pressure in spare tire
  2. Check battery condition

B-Service - First visit at approximately 20,000 miles or one year after previous service, but determined by Flexible Service System; then every 20,000 miles or 2 years.

Services performed:

Interior

  1. Function check
  2. Check warning and indicator lamps, illumination and interior lighting
  3. Check windshield wiper, windshield washer system, headlamp cleaning system
  4. Reset maintenance service counter in instrument cluster
  5. Replace dust filter (not applicable to SL-Class)
  6. Replace combination filter (SL-Class)
  7. Check parking brake (function test only)

Wheels, brakes

  1. Check condition/thickness of front and rear brake discs
  2. Check front and rear brake pads for lining thickness
  3. Check tires for damage and condition
  4. Measure tread depth, record in mm
  5. Correct tire inflation pressure

Underside of Vehicle

  1. Check for major components leakage
  2. Check for chafe marks, line routing, damaged components
  3. Check condition of front axle ball joints and rubber boots
  4. Check condition of mechanical steering components and rubber boots
Engine Compartment

  1. Check for major components leakage
  2. Check for chafe marks, line routing, damaged components
  3. Check and replenish all fluid levels
  4. Change engine oil and filter
  5. Check engine cooling system, antifreeze and corrosion protection
  6. Check brake system
  7. Check power steering
  8. Check Active Body Control
  9. Check windshield washer system
  10. Check and correct battery fluid level
  11. Check battery condition
  12. Check catch, safety catch and hinges on engine hood for proper operation
  13. Check condition of poly V-belt

Trunk

  1. Check battery condition
  2. Correct tire inflation pressure in spare tire

This is the basic schedule:

  • At 10,000 miles or 1 year (whichever comes first) an A-Service is required
  • At 20,000 miles or 1 year from the previous service (whichever comes first) from the last service a B-Service is required
  • At 30,000 miles or 1 year from the previous service (whichever comes first) from the last service an A-Service is required
  • At 40,000 miles or 1 year from the previous service (whichever comes first) from the last service a B-Service is required*
  • At 50,000 miles or 1 year from the previous service (whichever comes first) from the last service an A-Service is required*
  • At 60,000 miles or 1 year from the previous service (whichever comes first) from the last service a B-Service is required*
  • At 70,000 miles or 1 year from the previous service (whichever comes first) from the last service an A-Service is required
  • At 80,000 miles or 1 year from the previous service (whichever comes first) from the last service a B-Service is required*
  • At 90,000 miles or 1 year from the previous service (whichever comes first) from the last service an A-Service is required
  • At 100,000 miles or 1 year from the previous service (whichever comes first) from the last service a B-Service is required*
  • At 110,000 miles or 1 year from the previous service (whichever comes first) from the last service an A-Service is required
  • At 120,000 miles or 1 year from the previous service (whichever comes first) from the last service a B-Service is required*
  • At 130,000 miles or 1 year from the previous service (whichever comes first) from the last service an A-Service is required
  • At 140,000 miles or 1 year from the previous service (whichever comes first) from the last service a B-Service is required

Note: * additional service required

In addition, the maintenance booklet states the following:

  • Every 2 years replace the brake fluid
  • Every 3 years replace the coolant.
  • Every 4 years or 50,000 miles check the condition of the flex discs.
  • Every 4 years or 50,000 miles retorque the steering gear bolts.
  • Every 4 years or 60,000 miles replace the fuel filter.
  • Every 4 years or 60,000 miles replace the air filter elements.
  • Every 4 years or 60,000 miles check the condition of the fuel filler nozzle seal in the filler neck.
  • Every 5 years or 100,000 miles replace the spark plugs

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© 2005 Marcus Blair Fitzhugh