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Mondeo 1 and 2 (1993-2000) Mondeo 2 (1997-2000) Mondeo 3 (2000-2007) Mondeo 4 (2007-2014) Mondeo 1 (1993-1996)

Battery and generator faults (Mondeo 3)

            0

Cause
Elimination
A. The red indicator light does not light when the ignition is on.
  1. The battery is discharged.
  2. There is a break in the battery cable, the wire contacts are loose or oxidized.
  3. Control lamp defective.
  4. A break in the wire between the ignition switch, the control lamp and the generator.
  5. Defective voltage regulator.
  6. The generator is damaged.
  7. Moisture has formed an insulating lubricating film between the slip rings and carbon brushes (e.g. after washing the engine) of the generator.
  1. Use a jumper cable or have the vehicle towed.
  2. Check the battery wires and terminals.
  3. Replace.
  4. Check the current flow using a test lamp.
  5. Replace the regulator.
  6. Repair the generator or replace it.
  7. Blow out the generator with compressed air, clean the contact rings and brushes if necessary.
B. The charge control light comes on or glows while the engine is running.
  1. The V-belt is loose or broken.
  2. Poor contact of generator wiring connections or break in wire.
  1. Check the tension of the V-belt, replace the belt if necessary.
  2. Check the wires and wiring connections.
B. The battery surface is wet.
  1. The battery cells are overfilled with distilled water.
  2. Contamination of battery valves.
  1. Release gases, do not suck out electrolyte.
  2. Clean out the vents with a pin.
G. The battery is emitting a lot of gases.
Voltage regulator defect. Check the regulator, replace if necessary.

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