Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Service Test






Battery Tester VAS 6161

Service Test


Batteries that have a colorless or light yellow visual indicator do not have to be tested or charged. Jump starting must not be used!

There is a risk of explosion during testing, charging or jump starting.

These batteries must be replaced.

- Select "Service Test".

- Select "at the battery pole" or "at the battery jump start terminal".

- Section vehicle model.

- Measure the temperature. Hold the temperature sensor approximately 5 cm above the battery pole until the temperature is stable.

- Select the type of battery: "standard", "AGM", "2*6V" or "Gel".

- Select the "CCA", "JIS", "DIN", "SAE", "IEC" or "EN".

- Start the test.

- Print out the test report if necessary.