Volkswagen Golf Service & Repair Manual: Dealing with problems with Midtronics -MCR340V- battery tester
| Under certain circumstances, the display may show errors or
messages according to status. |
| The most frequent display messages are listed below,
together with suggested solutions. |
 Note
| For messages not listed here, please refer to
→ operating manual MCR340V. |
|
|
|
| Display message |
Measures |
| No display |
| – |
Check whether terminals of battery tester are firmly
connected to battery terminals. |
| – |
Check battery terminals are tightened according to
regulations and do not have corrosion. |
| – |
Charge battery
→ Chapter. |
|
| System noise |
| – |
Switch off all electrical consumers. |
| – |
Wait until all electrical loads monitored by onboard supply
control unit have switched off. |
| – |
Disconnect any suspect non-standard electrical equipment
from the onboard supply. |
|
| Wait a few minutes and test again
→ Chapter. |
Note
| If you have performed the test at jump-start point and the
message does not disappear, perform the test directly on the
battery. |
|
|
|
Prerequisites:
WARNING
Before working on the battery, read through the
warning and safety regulatio ...
WARNING
It is not permissible to test or charge batteries
whose magic eye shows light yellow. Do not slave/jump
st ...
© 2016-2026 Copyright www.vwgolf.org
Performing battery test with Midtronics -MCR340V- battery tester
Current draw test