Pre-Heater System
| Engine | 17 D, 17 DR |
|---|---|
| Pre-heater system | Electronically controlled |
| Relay | 2 (controlled via pre-heater controller) |
| Sheathed glow plug | (5V quick warm-up glow plug) |
| Identification | Catalogue No. 12 14 310 (94 481 972) for QOS III |
| Volume resistance ohms | approx. 0.4 |
| Thermo Switch | |
| Switch on point °C | 57 to 63 |
| Switch off point °C | min. 53 |
| Series resistor | |
| Volume resistance mohms | 150 |