| A/C on | 1.5 mm² | Junction L | C105 1 |
| A/C on | 0.5 mm² | C105 1 | Motronic Control Unit (325e) 9 |
| A/C on | 1.5 mm² | Junction B | C211 1 |
| A/C on | 1.0 mm² | C211 1 | Motronic Control Unit (325i) 40 |
| Clutch monitor | 0.75 mm² | Evaporative Temperature Regulator 2 | C204 5 |
| Clutch monitor | 0.75 mm² | C204 5 | High Pressure Cut-Out Switch 2 |
| Compressor clutch | 1.5 mm² | Junction T | Compressor Oil Temperature Switch 1 |
| Compressor clutch | 0.75 mm² | Compressor Oil Temperature Switch 2 | Compressor connector (unnumbered) 1 |
| Compressor clutch | 0.75 mm² | Compressor connector (unnumbered) 1 | Compressor Clutch Diode 1 |
| Compressor clutch | 0.75 mm² | Compressor connector (unnumbered) 1 | Compressor Clutch 1 |
| Compressor control | 0.75 mm² | Evaporative Temperature Regulator 5 | C204 8 |
| Compressor control | 1.5 mm² | C204 8 | High Pressure Cut-Out Switch 1 |
| Compressor control | 1.5 mm² | High Pressure Cut-Out Switch 2 | Low Pressure Cut-Out Switch 1 |
| Compressor on | 1.5 mm² | Low Pressure Cut-Out Switch 2 | Junction R |
| Ground | 0.75 mm² | Compressor Clutch Diode 2 | Diode ground GND |
| Ground | 0.75 mm² | Compressor Clutch 2 | Clutch ground GND |