Battery, testing
CAUTION:
- Prior to handling or servicing batteries, read, understand and observe the Warning and Safety Measures for lead-acid batteries Smoking, naked flames, fires and sparks: .
- Always wear suitable protective clothing Eye protection and protective clothing: .
- DO NOT battery test batteries which are gassing. Otherwise there is a risk of explosion.
- The following notes and procedures must be followed to ensure correct measurements.
- When disposing of batteries, always pay attention to the appropriate regulations for batteries and sulfuric acid.
NOTE:
- In order to better determine a batterys overall condition, it is recommended to always perform the battery test in conjunction with the electrolyte specific gravity test
- Always follow the battery tester operating instructions.
- It is not necessary to remove battery from vehicle or disconnect battery terminals.
Special tools, testers and auxiliary items required
- Battery Test Kit Midtronics MCR 340V (VAG tester illustrated here for reference only).
CAUTION:
- Switch off all electrical consumers.
- Switch ignition off and remove ignition key.
- Check no-load voltage → No-load voltage, checking
- Connect tester cable clamps to battery terminal MCR 340V Instruction Manual Tester leads must be securely fastened and make proper contact with the battery posts.
- Select test mode "IN-VEHICLE" or "OUT-OF-VEHICLE" (refer to MCR 340V Instruction Manual).
- Select battery type (AGR or conventional) (refer to MCR 340V Instruction Manual).
- Set tester to "Warranty Test" (refer to MCR 340V Instruction Manual).
- Perform battery test by setting load current on tester according to battery (DIN) capacity (refer to MCR 340V Instruction Manual).
NOTE:
- Use print function of MCR 340V where test results are required for warranty claims.
Battery test results:
| Battery Tester Display / Printout | Required action |
| Good Battery | None |
| Good - Recharge | Charge battery where necessary → Battery, charging |
| Use inCHARGE | Charge battery → Battery, charging |
| Replace Battery | Replace battery → Battery in engine compartment, removing and installing |
| Bad Cell - Replace | Replace battery → Battery in engine compartment, removing and installing |