Volkswagen Polo Quiz
Battery, Starter, Generator, Cruise Control

Midtronics Battery Tester -MCR340VKT-, Troubleshooting

In this manual: Battery, Starter, Generator, Cruise Control
General Paint Information — 128Towing Guide — 10Whels, Tires, Whel Alignment — 126Battery, Starter, Generator, Cruise Control — 65Windshield Wiper/ Washer System — 9Exterior Lights, Switches — 1Interior Lights, Switches — 7Wiring — 51Refrrigerant R134a Servicing — 134
~1min read

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.

Test yourself

A quick Volkswagen Polo quiz: every answer comes with an explanation and a link to the manual page.