Structure and inner electrical connection
WARNING: This page does not describe the selected car, but rather 45 other vehicles, including the 2016 BMW M5, 2016 BMW 550i xDrive, 2016 BMW 550i, 2016 BMW 535i xDrive, and 2016 BMW 535i. However, it is still accessible from the selected car via links, so may be relevant.
A piezo element is an electromechanical converter. The piezo element is a type of ceramic that converts electrical energy directly into mechanical energy (power/travel). The piezo element expands when voltage is applied. This creates the stroke of the nozzle needle. To achieve a greater stroke, a piezo element can be structured in a number of layers.
| Index | Explanation |
|---|---|
| 1 | Injection system |
PIN REFERENCE
| Pin | Explanation |
|---|---|
| 160 V | Voltage supply to injector (stepped up) |
| Terminal 31E | Electronics earth (ground), injector activation |