| Part Type | Negative Battery Cable with IBS Sensor |
| IBS Meaning | Intelligent Battery Sensor |
| OEM Part Number | 61 12 9 184 206 |
| Short Number | 9184206 |
| Superseding Number | 61 21 7 620 566 – verify by VIN |
| Placement | Rear Battery Compartment |
| Voltage | 12 Volt |
| Condition | Used OEM |
Fits select 2004–2010 BMW 6-Series E63 Coupe and E64 Convertible models, including:
The Intelligent Battery Sensor monitors battery voltage, charging current and temperature. This information is transmitted to the vehicle’s energy-management system to regulate charging and electrical operation.
Genuine used BMW electrical component. Normal cosmetic wear, scratches, dirt, oxidation or installation marks may be present. Inspect all photographs carefully for the exact condition of the cable, terminal, sensor housing and electrical connector.
The photographs show the exact item you will receive.
Battery, positive cable, mounting hardware and additional wiring are not included unless clearly pictured.
Professional installation is recommended. Disconnect the vehicle’s electrical system according to BMW repair procedures before removing or installing battery components. Diagnostic initialization may be required depending on the repair performed.