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W123 (1976-1985) W124 (1984-1995) W210 (1996-2002)
  • Main
  • E-Class
  • W124 (1984-1995)
  • Power unit
  • Injection system «Bosch CIS-E»
  • Electronic Control Unit (ECU)

Electronic Control Unit (ECU) (Mercedes-Benz E-Class W124)

0
Contents: Removal ↡ Installation ↡
Caution! The Electronic Control Unit (ECU) contains static-sensitive components, so when disconnecting electrical connectors from the ECU, do not touch the connector contacts with your hands or tools, as this may damage the ECU components. When working on the ECU, discharge static electricity from your body by touching grounded metal objects. Disconnect electrical connectors from the ECU only for the time required for repairs.


Removal



1. The ECU is located behind the engine compartment bulkhead near the battery.

2. Remove the ground cable from the battery.

3. Press the spring clips and disconnect the multi-pin electrical connector from the electronic control unit.

4. Remove the locking pin, unscrew the screws and remove the electronic control unit. On models with an anti-lock braking system, the anti-lock braking system control unit must first be removed.

Installation



1. Installation is carried out in the reverse order of removal.
This article is available at: russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
The article has been verified: Levin Kirill Glebovich
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E-Class W124 / Injection system «Bosch CIS-E»
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W210 (1996-2002) 
  • General information
  • Vehicle description
  • Working conditions and tools
  • Car care
  • Diesel engines
  • Engine repair
  • Lubrication system
  • Cooling system
  • Injection system
  • Supply system
  • Exhaust system
  • Gasoline engines
  • Engine repair
  • Lubrication system
  • Cooling system
  • Control system
  • Power and exhaust system
  • Transmission
  • Clutch
  • Mechanical gearbox
  • Automatic gearbox
  • Drive shafts
  • Chassis
  • Car suspension
  • Steering
  • Tires and wheels
  • Brake system
  • Body
  • Exterior (external elements)
  • Interior (internal elements)
  • Doors and windows
  • Heating and ventilation
  • Electrical equipment
  • Equipment and devices
  • Power devices
  • Lighting and signaling
  • Electrical circuits
W124 (1984-1995) 
  • General information
  • Governing bodies
  • Driving and operation
  • Weekly care
  • Maintenance (gasoline)
  • Maintenance (diesel)
  • Troubleshooting
  • Power unit
  • I4 petrol engine
  • V6 petrol engine (SOHC)
  • V6 petrol engine (DOHC)
  • Diesel engines
  • Engine overhaul
  • Cooling system
  • Heating and ventilation
  • Fuel system (carburetor)
  • Injection system «Bosch CIS-E»
  • Injection system «Bosch HFM»
  • Diesel fuel system
  • Supply system
  • Starting and charging system
  • Ignition system (I4)
  • Ignition system (V6)
  • Preheating
  • Transmission
  • Clutch
  • Mechanical gearbox
  • Automatic gearbox
  • Drive shafts
  • Chassis
  • Brake system
  • Car suspension
  • Steering
  • Body
  • Exterior (external elements)
  • Interior (internal elements)
  • Doors, locks and windows
  • Electrical equipment
  • Equipment and devices
  • Switches
  • Headlights and lighting
  • Electrical circuits
W123 (1976-1985) 
  • General information
  • Introduction to the guide
  • Power unit
  • Engine device
  • Repair M102 engines
  • Repair M110 and M123 engines
  • Cooling and lubrication (M102)
  • Cooling (M110 and M123)
  • Ignition system
  • Power system «Stromberg»
  • Power system «Solex 4A1»
  • Fuel injection «K-Jetronic»
  • Fuel injection «L-Jetronic»
  • Transmission
  • Clutch
  • Mechanical gearbox
  • Automatic gearbox
  • Cardan and rear axle
  • Chassis
  • Front suspension
  • Rear suspension
  • Steering
  • Brake system
  • Body
  • Exterior (external elements)
  • Interior (internal elements)
  • Doors, locks and windows
  • Electrical equipment
  • Equipment and devices
  • Power devices
  • Electrical circuits
 
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