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.
|
| – |
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. |
|
Requirements
WARNING
Read and follow the Safety Precautions when working
with batteries. Refer to
...
WARNING
Batteries that have a light yellow visual indicator
do not have to be tested or charged. Jump starting must
...
Other materials:
Locking or unlocking the driver door manually
Fig. 155 Door handle on driver
door with lock cylinder
First read and observe the introductory
information and safety warnings
If locked manually, all doors are locked. If unlocked manually, only the
driver door is unlocked. Observe information on the anti-theft alarm .
Fold the key bi ...
Spare wheel or temporary spare wheel
Fig. 148 In luggage compartment: variant
A: handwheel for securing spare wheel and variant B: handwheel for securing temporary
spare wheel
First read and observe the introductory information
and safety warningsRemoving the spare wheel
Open the tailgate then lift up and secure the variab ...
Indicator lamps and fuel gauge
Fig. 129 In the instrument cluster: Variants
A and B: fuel gauges for petrol and diesel. Variant C: fuel gauge for autogas
First read and observe the introductory information
and safety warnings 
Lit up
Needle position 
Possible cause †...
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Battery, Testing using Midtronics Battery Tester -MCR340VKT
Current Draw Test