What is MID 73 & How to Solve It?

What is MID 73:

MID 73 relates to the vehicle retarder system, such as a hydraulic or electric engine retarder used to assist braking.

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Why This Happens:

• Retarder overheating
  
• Malfunctioning retarder valve or solenoid
  
• Electrical issue in the activation circuit
  
• Low hydraulic fluid
  
• Faulty sensors in the system
  
  

How to Fix It:

1. Check the hydraulic or electrical retarder components.
   
2. Inspect and top off hydraulic fluid if low.
   
3. Test retarder solenoids and wiring for continui
4. ty.
   
5. Replace faulty temperature or speed sensors.
   
6. Recalibrate the retarder using diagnostic software.
   
   

How to Avoid It Before It Happens:

• Conduct regular retarder performance tests.
  
• Keep fluid levels in spec and change regularly.
  
• Monitor temperature readings.
  
• Avoid overuse of the retarder on long descents.
  
• Clue’s safety management tools help monitor braking systems to prevent overheating and failure.