| Visual inspection of battery |
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| Visually inspect battery before performing comprehensive measurements: |
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| External condition of battery |
Caution | Risk of explosion, poor crash safety, risk of corrosion, shortened service life. |
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| If the retainer plate is loose, this may damage the battery housing and allow electrolyte to escape. |
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| If not properly secured, the battery may be subject to vibration damage and the plates in the battery will be damaged. |
| Risk of malfunctions in electrical system or cable fire. |
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| The wiring connections may not make proper contact if the battery terminals are damaged or the battery terminal clamps are loose. Check condition of battery terminals; for tightening torques for battery terminal clamps and additional clamps refer to → Electrical system; Rep. gr.27. |
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| Risk of corrosion due to escaping electrolyte. |
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| The battery openings must be fitted with the correct type of genuine sealing plugs to ensure proper sealing of the battery cover (different types). Only use genuine sealing plugs of the same type when renewing missing or damaged sealing plugs. |
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| The plugs must be fitted with an O-ring. |
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