LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 1999 >> S500 >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Mixture Formation - 140 Chassis >> Component Modifications >> LH-SFI fuel injection valves modified - BT07.03-P-0001-01A

LH-SFI fuel injection valves modified - BT07.03-P-0001-01A

ENGINE 119.975 ## as of 006204 as of 1.9.92, 

119.974 ## as of 005782 as of 1.9.92, 

119.972 ## as of 000001 as of 1.9.92, 

119.970 ## as of 026391 as of 1.9.92, 

119.971 ## as of 011693 as of 1.9.92, 

120.980 /981 ## as of 015811 as of 1.9.92 

STANDARD PRODUCTION BREAKPOINTS/MODIFICATIONS/NEW FEATURES

Engine LHS RHS Transmission Engine end no. as of Engine end no. up to Production period as of Production period up to Nature and reason for modification Reference/Remarks
119.975     006204   01.09.92      
119.974     005782   01.09.92      
119.972     000001   01.09.92      
119.970     026391   01.09.92      
119.971     011693   01.09.92      
120.980     015811   01.09.92      
120.981     015811   01.09.92      
  1. As of 09/92 modified fuel injection valves have been used. The fuel outlet (a) has been converted from 4 to 2 holes which results in improved fuel formation.
  2. Due to the arrangement of the holes (a) the fuel forms 2 streams when it flows out which spray the fuel onto both inlet valves as a finely atomized spray.
    Fig 1: Identifying Fuel Outlet Hole
    G04677843Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
    Fig 2: Identifying Fuel Injection Valves And Injection Spray
    G04677844Courtesy of MERCEDES-BENZ OF NORTH AMERICA.