VW Polo manuals

Volkswagen Polo Service & Repair Manual: Midtronics Battery Tester -MCR340VKT-, Troubleshooting

Sometimes the display shows the malfunction or the messages based on the condition.
The following is a list of the most frequent displayed messages together with suggested solutions.
  Note
Refer to the MCR340V Operating Instructions for messages not listed here.
   
Display Message Measure
No display
–  Make sure the battery tester terminals are attached securely to the battery terminals.
–  Make sure the battery pole is tightened to the tightening specification and is not corroded.
–  Charge battery. Refer to → Chapter „Battery Tester Charger Kit -GRX3000VAS-“.
System noises
–  Switch off all electrical consumers.
–  Wait until all electrical equipment, which are monitored by the vehicle electrical system control module, are switched off.
–  Remove the key.
–  Disconnect any doubtful or standard production electrical equipment from the vehicle electrical system.
 
Wait a few minutes and then perform the test again. Refer to → Chapter „Battery, Testing using Midtronics Battery Tester -MCR340VKT-“.
  Note
If the test was performed at the battery jump start terminal and the message still does not go away, then perform the test directly on the battery.
Battery, Testing using Midtronics Battery Tester -MCR340VKT
Requirements   WARNING Read and follow the Safety Precautions when working with batteries. Refer to ...

Current Draw Test
  WARNING Batteries that have a light yellow visual indicator do not have to be tested or charged. Jump starting must ...

Other materials:

General Information
  WARNING Risk of injury. Read and follow the Safety Precautions when working with batteries. Refer to → Chapter „Warnings and Safety Precautions“. ...

Replacing Reservoir, No Contaminants, No Loss of Refrigerant
  Discharge the refrigerant circuit. –  Replace the restrictor depending on the vehicle. –  Remove receiver or accumulator. –  Remove dirt from receiver or res ...

Adapter for Assembling Flushing Circuit
The following table lists the different adapters necessary to connect the service station to the refrigerant circuit, to flush and to bypass the removed receiver/dryer or reservoir and expansion valve (depending on the vehicle). Us ...

© 2016-2026 Copyright www.vwpolo.net