Powertrain Management: Technical Service Bulletins

• Customer Interest
  • EGR - Vacuum Transducer Updated
    • Overview
    • General
    • Testing
    • Vacuum Routing Diagrams
      • M.Y. 1990/91 124 Chassis (E-Class)
      • M.Y. 1992 124 Chassis (E-Class)
      • M.Y. 1990/91 126 Chassis (S-Class)
      • M.Y. 1992 140 Chassis (S-Class)
    • Parts and Warranty Information
  • Cruise Control Inoperative
  • Fuel - Aneroid Compensator (ALDA), Modified
  • Diesel Engine - MIL ON/Hard Start/Stall In Cold Temps.
• By Symptom
  • Abnormal wear/deterioration
    • Injection Lines Leak (Cyl. 1 thru 4) Due To Vibration
  • Customer Interest
    • EGR - Vacuum Transducer Updated
      • Overview
      • General
      • Testing
      • Vacuum Routing Diagrams
        • M.Y. 1990/91 124 Chassis (E-Class)
        • M.Y. 1992 124 Chassis (E-Class)
        • M.Y. 1990/91 126 Chassis (S-Class)
        • M.Y. 1992 140 Chassis (S-Class)
      • Parts and Warranty Information
    • Cruise Control Inoperative
    • Fuel - Aneroid Compensator (ALDA), Modified
    • Diesel Engine - MIL ON/Hard Start/Stall In Cold Temps.
  • Driveability
    • EGR - Vacuum Transducer Updated
      • Overview
      • General
      • Testing
      • Vacuum Routing Diagrams
        • M.Y. 1990/91 124 Chassis (E-Class)
        • M.Y. 1992 124 Chassis (E-Class)
        • M.Y. 1990/91 126 Chassis (S-Class)
        • M.Y. 1992 140 Chassis (S-Class)
      • Parts and Warranty Information
    • Fuel Filters - Power Loss Due to Clogging
  • Inoperative
    • Scan Tool (Impulse Counter ) - Failure, Improper Hook-Up
    • Cruise Control Inoperative
  • Leaks
    • EGR - Vacuum Transducer Leak Test
  • No shift/Incorrect gear engagement
    • A/T - No 2-3 Upshift at Full Throttle/Engine Cutout
  • Noise
    • EGR Valve Noisy
  • Poor performance
    • EGR - Vacuum Transducer Updated
      • Overview
      • General
      • Testing
      • Vacuum Routing Diagrams
        • M.Y. 1990/91 124 Chassis (E-Class)
        • M.Y. 1992 124 Chassis (E-Class)
        • M.Y. 1990/91 126 Chassis (S-Class)
        • M.Y. 1992 140 Chassis (S-Class)
      • Parts and Warranty Information
  • Smoke, Fumes
    • EGR - Vacuum Transducer Updated
      • Overview
      • General
      • Testing
      • Vacuum Routing Diagrams
        • M.Y. 1990/91 124 Chassis (E-Class)
        • M.Y. 1992 124 Chassis (E-Class)
        • M.Y. 1990/91 126 Chassis (S-Class)
        • M.Y. 1992 140 Chassis (S-Class)
      • Parts and Warranty Information
  • Vibration
    • Injection Lines Leak (Cyl. 1 thru 4) Due To Vibration
• All Technical Service Bulletins
  • Engine Control - Engine Control Module (N3/10) Flashing
  • Computers/Controls - Module Programming Precautions
  • Electrical - Electrostatic Discharge Damage Prevention
  • Vehicle - New Dealer Technical Bulletin
  • Tools - Hand-Held Tester, New Modules
  • EGR - Vacuum Transducer Updated
    • Overview
    • General
    • Testing
    • Vacuum Routing Diagrams
      • M.Y. 1990/91 124 Chassis (E-Class)
      • M.Y. 1992 124 Chassis (E-Class)
      • M.Y. 1990/91 126 Chassis (S-Class)
      • M.Y. 1992 140 Chassis (S-Class)
    • Parts and Warranty Information
  • Glow Plug Lamp Does Not Come ON, or Works Intermittently
  • Engine - Warning About Carbon Cleaning
  • Policy - Fluke Meter Approved
  • A/T - No 2-3 Upshift at Full Throttle/Engine Cutout
  • Fuel Filters - Power Loss Due to Clogging
  • Knocking Noise at Idle From Fuel Return Line
  • Pinging With Cold and Warm Engine
  • Battery Discharges for No Apparent Reason
  • Injection Lines 1 Thru 4 Leak Due to Vibration
  • EGR - Vacuum Transducer Leak Test
  • EGR - Vacuum Transducer, One Vent Line
  • Fuel - Accelerator Cable Bushing Now Available
  • Maintenance - Factory Approved Service Products
    • Overview
    • General Information
    • Engine Oil
    • Other Lubricants and Fluids
    • Fuel Requirements
      • 1. Gasoline Engines
      • 2. Diesel Engines
  • Policy - Vehicle Emission System Tampering
  • I/M Emission Testing on Dynamometer
  • Scan Tool (Impulse Counter ) - Failure, Improper Hook-Up
  • Policy - HHT Warranty & Precautions
  • Hand-Held Tester (HHT) - Updated Modules
  • Cruise Control Inoperative
  • EGR Valve Noisy
  • Vacuum Pump - Repair Tips (Piston-Type)
  • Combustion Noise With Simultaneous Mechanical Noise
  • Poor Engine Performance, Sluggish Acceleration
  • Adjusting Maximum Rpm Limit
  • Adjusting Maximum Full-Load Quantity
  • Full-Load Quantity Adjustment, AJC Equipped
  • Fuel - Low Sulfur Diesel
  • Engine - Centering Sleeve Deleted
  • Fuel - Updated Diesel MFI Pump
  • Warranty - Return of Fuel System Components
  • Fuel - Fuel Drain Hoses & Portable Fuel Tanker
  • Fuel - Aneroid Compensator (ALDA), Modified
  • Injection Lines Leak (Cyl. 1 thru 4) Due To Vibration
  • Fuel System - Additive Recommendations
  • Diesel Engine - MIL ON/Hard Start/Stall In Cold Temps.
  • Diesel Eng. - Repair Kit For Cyl. Head Glow Plug Thread
  • Emissions - I/m Dynamometer Emissions Testing