Mercedes Coupes/Sedans/Wagons 1974-1984 Repair Guide

Fuel Injector

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REMOVAL & INSTALLATION



See Figures 1 through 7

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Fig. Fig. 1: Cross-sectional view of a nozzle holder/injector assembly



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Fig. Fig. 2: Sectional view of an installed nozzle holder/injector assembly



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Fig. Fig. 3: To remove a fuel injector, first disconnect the negative battery cable



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Fig. Fig. 4: Use a flare nut wrench to loosen and disconnect the fuel line from the injector ...



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Fig. Fig. 5: ... then disconnect the overflow tubes from the injector



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Fig. Fig. 6: Use a ratchet and socket to loosen the fuel injector ...



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Fig. Fig. 7: 1. Fuel injector... then remove the injector from the cylinder head

  1. Disconnect the negtive battery cable.
  2.  
  3. Unbolt the fuel lines, then disconnect the overflow tubes.
  4.  
  5. Remove the injectors from the cylinder head.
  6.  

If equipped with heat shields (washers), they must be replaced with new ones when reinstalling the fuel injector.

  1. Installation is the reverse of removal.
  2.  
  3. Bleed the system by opening the bleed screw and operating the hand pump to evacuate any air.
  4.  

 
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