Service Manual Library

Mercedes-Benz S-Class W116

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

  • Carburetor, idle speed control, regulation of engine
  • 07.2-090 - Layout and function of Solex carburetor 4 A 1
    • A. General
    • B. Float
    • C. Idle speed
    • D. Bypass carburetor stage I
    • E. Acceleration
    • F. Main jet system carburetor stage I
    • G. Bypass carburetor stage II
    • H. Main jet system carburetor stage II
    • I. Starting device (choke)
    • J. Vacuum governor
    • K. Fuel return valve
  • 07.2-092.1 - Technical modifications (revisions) of model years
    • A. (J) model year 1976 - Differences as compared with standard version
    • B. (S) model year 1976 - Differences as compared with standard version
    • C. (USA) model year 1973 - Differences as compared with standard version
  • 07.2-092.2 - Technical modifications (revisions) of model years (cont'd)
    • D. (USA) model year 1974 Federal - Differences as compared with model year 1973 Federal
    • E. (USA) model year 1974 California - Differences as compared with model year 1973 Federal
    • F. (USA) model year 1975 - Differences as compared with model year 1974 Federal
    • G. (USA) model year 1976 - Differences as compared with model year 1975
  • 07.2-100 - Adjusting idle speed
  • 07.2-101 - Synchronizing idle speed systems
  • 07.2-102 - Checking idle speed shutoff valves for function
  • 07.2-104 - Removal and installation of idle speed shutoff valves
  • 07.2-110 - Regulation of engine
  • Starting device (choke)
  • 07.2-125 - Adjusting choke
  • 07.2-128 - Testing starting device (choke) for function (cold start)
  • 07.2-130 - Testing and adjusting TN choke for function
  • 07.2-132 - Adjusting choke rod
  • 07.2-134 - Testing pulldown diaphragm for leaks
  • 07.2-138 - Removal and installation of TN choke
  • 07.2-140 - Removal and installation of choke
  • 07.2-142 - Checking and correcting choke housing mark
  • 07.2-145 - Checking choke cover-stepped heater
  • 07.2-147 - Subsequent installation of choke cover-stepped heater
  • Accelerating system
  • 07.2-150 - Adjusting accelerating pump
  • 07.2-152 - Checking suction valve and delivery valves of accelerating pump for leaks
  • 07.2-154 - Removal and installation of accelerating pump diaphragm
  • 07.2-156 - Subsequent installation of vapor bubble draw-off for accelerating pump (USA 1975/76 only)
  • Carburetor stage II
  • 07.2-170 - Checking and correcting air valve adjustment of stage II
  • 07.2-172 - Checking and correcting jet needle adjustment of stage II
  • 07.2-174 - Removal and installation of restoring spring for air valve of stage II
  • 07.2-175 - Subsequent installation of modified adjusting pin for air valve preload of stage II
  • 07.2-176 - Subsequent installation of bypass bores of stage II
  • Float
  • 07.2-180 - Adjusting float level
  • 07.2-182 - Checking float chamber external venting system
  • 07.2-186 - Checking fuel return valve
  • Carburetor (total)
  • 07.2-190 - Cleaning carburetor
  • 07.2-192 - Removal and installation of carburetor cover
  • 07.2-194 - Removal and installation of carburetor
  • Fuel pump
  • 07.2-210 - Checking fuel pump
  • 07.2-212 - Removal and installation of fuel pump
  • Regulation
  • 07.2-300 - Adjustment of regulating linkage
  • 07.2-310 - Removal and installation of engine longitudinal regulating shaft
  • 07.2-320 - Removal and installation of front wall regulating shaft
  • 07.2-330 - Removal and installation of accelerator pedal