Ceramic glow plugs
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
The ceramic glow plugs are designed for a voltage of 7.0 Volts in calm air. During preheating, an effective on-board supply voltage of 10 Volts can be briefly applied for rapid heating. To maintain the heater plug temperature, the heater plugs are supplied with a PWM signal. This sets an effective voltage at the heater plugs that is lower than the on-board supply voltage.
| 1 | Ceramic heating element |
| 2 | Positive terminal connection |
| 3 | Connection bolt |
| 4 | Gasket |
| 5 | Circular connector |
| 6 | Thread |
| 7 | Support tube |