Service Manual Library

Mercedes-Benz S-Class W116

1972-1980: 280S 280SE 300SD 450SE 450SEL

  • Testing and adjusting jobs
  • 07.3-100 - Adjustment of idle speed
  • 07.3-105 - Checking and adjusting on-off ratio
  • 07.3-110 - checking and regulating engine
  • 07.3-120 - Checking fuel pressures and for internal leaks
  • 07.3-125 - Checking choke system
  • 07.3-130 - Checking delivery capacity of fuel pump
  • 07.3-135 - Checking injection valves
  • 07.3-140 - Checking decel shutoff
  • 07.3-145 - Checking idle speed stabilization on engines with refrigerant compressor
  • 07.3-150 - Checking idle speed stabilization with rpm increase following start
  • 07.3-160 - Checking fuel distributor for constant delivery
  • 07.3-165 - Checking fuel pump relay with electronic rpm regulation (breakaway)
  • Assembly jobs
  • 07.3-199 - Survey mixture preparation
  • 07.3-200 - Removal and installation of mixture controller
  • 07.3-205 - Replacement of fuel distributor
  • 07.3-210 - Reconditioning of system pressure regulator and pressure compensating valve
  • 07.3-215 - Removal and installation of injection valves
  • 07.3-220 - Replacement of air flow sensor
  • 07.3-225 - Removal and installation of mixture controller with air guide housing
  • 07.3-230 - Removal and installation of throttle valve housing
  • 07.3-242 - Subsequent installation of safety switch on air flow sensor
  • 07.3-245 - Replacement, centering and zero position of air flow sensor plate
  • 07.3-270 - Removal and installation of fuel reservoir
  • 07.3-275 - Removal and installation of fuel filter
  • 07.3-280 - Removal and installation of fuel pump
  • 07.3-281 - Replacement of holder for fuel pump, fuel filter and fuel reservoir
  • 07.3-282 - Conversion of fuel pump assembly
  • 07.3-283 - Subsequent installation of separate check valve on fuel pump
  • 07.3-500 - Operation