Powertrain Management: Technical Service Bulletins

• Recalls
  • Recall - Throttle Cable Bushing Replacement
    • Overview
    • Owner Letter
  • Recall 93V095000: Throttle Cable Bushing Replacement
• 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
  • ABS - False Codes
  • 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
    • ABS - False Codes
    • 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
    • Surging at Full Load above 2000 rpm
    • Engine Surging at Partial Load
  • Erratic Operation
    • ABS - Preglow System Modification Fixes ABS Light
      • Overview
      • Complaint
      • Repair Procedure For E-Class (124 Chassis)
      • Repair Procedure For 190 Class (201 Chassis)
      • Parts and Warranty Information
  • False instrument warning light/gauges
    • ABS - False Codes
    • EDS Diagnostic Fault Code 11, No Apparent Fault
  • 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
    • Surging at Full Load above 2000 rpm
    • Engine Has No Power
  • Recalls
    • Recall - Throttle Cable Bushing Replacement
      • Overview
      • Owner Letter
    • Recall 93V095000: Throttle Cable Bushing Replacement
  • 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
  • Knocking Noise at Idle From Fuel Return Line
  • Pinging With Cold and Warm Engine
  • Fuel Injection Nozzle - Caution
  • Engine Performs Poorly
  • Diagnostic Fault Code With No Apparent Malfunction
  • Battery Discharges for No Apparent Reason
  • Battery Discharges After Extended Parking Time
  • Battery Discharged/Electronic Damage - After Jump Start
  • Battery - Parasitic Drain With Ignition OFF
  • Injection Lines 1 Thru 4 Leak Due to Vibration
  • Hard Starting, No Start After Being Parked For a Time
  • Hard Starting or No Start After Parked For a Time
  • Surging at Full Load above 2000 rpm
  • Engine Has No Power
  • Engine Surging at Partial Load
  • Decreased Power Under Partial Load on Downgrades
  • Recall - Throttle Cable Bushing Replacement
    • Overview
    • Owner Letter
  • Recall 93V095000: Throttle Cable Bushing Replacement
  • EGR - Vacuum Transducer Leak Test
  • EGR - Vacuum Transducer, One Vent Line
  • Low Engine Power Output DTC 1470 is Set
  • ABS - False Codes
  • ABS - Preglow System Modification Fixes ABS Light
    • Overview
    • Complaint
    • Repair Procedure For E-Class (124 Chassis)
    • Repair Procedure For 190 Class (201 Chassis)
    • Parts and Warranty Information
  • 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
  • Emissions Control - Warranty, California Vehicles
  • EDS Diagnostic Fault Code 11, No Apparent Fault
  • Scan Tool (Impulse Counter ) - Failure, Improper Hook-Up
  • Policy - HHT Warranty & Precautions
  • Hand-Held Tester (HHT) - Updated Modules
  • Cruise Control Inoperative
  • EGR Valve Noisy
  • Jerking During Load Change
  • 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
  • Momentary Speed Signal Loss
  • After ASD Control Replacement, ASD MIL Flashes
  • Oil Leak at Charge Air Distribution Line and Cyl. Head
  • Injection Lines Leak (Cyl. 1 thru 4) Due To Vibration
  • Vacuum Actuator - Updated Vacuum Hose Connection
  • Engine Surging at Partial Loads
  • Engine Surges at Full Load Operation Above 2000rpm
  • 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