Removing and installing crash sensor for pedestrian protection G570 / G571 — AUDI

🧭 Before you start

Fits: Audi A3 (8V, 2012–2020); platform code 85

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• Make sure electrical connectors are fitted correctly (as far as stop) and engage audibly.Make sure that wiring is not trapped.
• If the airbag warning lamp K75 indicates a fault following installation, you must interrogate, erase and then re-interrogate the event memory .

📋 Procedure

1. ⚠ Observe safety precautions when working on pyrotechnic components . — With ignition switched on, disconnect battery earth wire Electrical system27Battery; Disconnecting and connecting battery.
2. Remove air intake grille General body repairs, exterior63Bumper (front); Removing and installing attachments.
3. Equipment version with fog lights: Remove fog lights Electrical system94Fog lights; Removing and installing fog light.
4. Equipment version with auxiliary radiator (left-side/right-side): Remove bumper cover General body repairs, exterior63Bumper (front); Removing and installing bumper cover.
5. Remove bolt (2) and detach crash sensor (3) for pedestrian protection from bumper.

6. ⚠ Before handling pyrotechnic components (e.g. unplugging the electrical connector) the mechanic must discharge any static electricity. This can be done by briefly touching the door striker plate, or similar. — Unplug electrical connector (1).
7. To do so, pull out and press down connector locking element (2)(arrow) and unplug electrical connector (1) at crash sensor.
8. ⚠ Observe safety precautions when working on pyrotechnic components .Before handling pyrotechnic components (e.g. plugging in the electrical connector) the mechanic must discharge any static electricity. This can be done by briefly touching the door striker plate, or similar. — Attach connector (1) to crash sensor (arrow) so that it engages audibly.
9. Press in connector locking element (2) to secure connector. [Note: Make sure electrical connectors are fitted correctly (as far as stop) and engage audibly.Make sure that wiring is not trapped.]
10. ⚠ The battery must be connected with the ignition switched on. If pyrotechnic components (e.g. airbag or belt tensioner) are inexpertly repaired, this may result in unwanted triggering after connecting the battery. There must not be anyone in the area of the bonnet when the battery is being connected. — With ignition switched on, connect battery earth wire Electrical system27Battery; Disconnecting and connecting battery. [Note: If the airbag warning lamp K75 indicates a fault following installation, you must interrogate, erase and then re-interrogate the event memory .]

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