| A/C request | 1.0 mm² | Control Switches 2 | S226 T |
| A/C request | 1.0 mm² | S226 B | Evaporator Temperature Regulator 3 |
| A/C request to DME | 1.0 mm² | S226 L | C136 1 |
| A/C request to DME | 0.5 mm² | C136 1 | Motronic Control Unit 41 |
| A/C select feed | 1.0 mm² | Compressor Enable Switch 2 | Control Switches 4 |
| Auxiliary fan | 1.0 mm² | S226 R | Auxiliary fan 1 |
| Enable switch feed | 1.0 mm² | S230 B | Compressor Enable Switch 1 |
| Evap temp input | 0.75 mm² | Evaporator Temperature Regulator 1 | Sensor connector (unnumbered) 1 |
| Evap temp sensor | 0.75 mm² | Sensor connector (unnumbered) 1 | Evaporator Temperature Sensor 1 |
| Feed | 4.0 mm² | Power Distribution Box 20 | C204 2 |
| Feed | 2.5 mm² | C204 2 | S230 T |
| Fuse details | 0.75 mm² | S230 R | Fuse details 1 |
| Ground | 2.5 mm² | S229 B | C204 4 |
| Ground | 2.5 mm² | C204 4 | G200 GND |
| Ground distribution | 0.75 mm² | Ground distribution 1 | S229 T |
| Lamp ground | 0.75 mm² | Control Switches 6 | G200 GND |
| Regulator ground | 0.75 mm² | Evaporator Temperature Regulator 4 | Junction reg 4/6 (unnumbered) T |
| Regulator ground | 0.75 mm² | Evaporator Temperature Regulator 6 | Junction reg 4/6 (unnumbered) R |
| Regulator ground | 0.75 mm² | Junction reg 4/6 (unnumbered) B | S229 L |
| Sensor ground | 0.75 mm² | Evaporator Temperature Sensor 2 | Sensor connector (unnumbered) 2 |
| Sensor ground | 0.75 mm² | Sensor connector (unnumbered) 2 | S229 R |