Checking fuel gauge senderG - vehicles with high-voltage system — AUDI

🧭 Before you start

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

🔧 Engine codes this applies to

📋 Procedure

1. Move front seats all the way forwards.
2. Switch off ignition.
3. Remove rear shelf General body repairs, interior70Passenger compartment trim panels; Removing and installing rear shelf.
4. Remove luggage compartment floor General body repairs, interior70Luggage compartment trim panels; Removing and installing luggage compartment floor.
5. Fold down rear seat backrests.

6. Remove subwoofer Communication91Sound system; Removing and installing subwoofer R211.
7. Remove nuts (arrows 1 ... 5) and detach flange cover (6).
8. Release retainer catch and unplug electrical connector (arrow) on flange. [Note: To obtain an exact measurement of the resistance value for the specification "“Tank full”", the fuel tank must be completely full. For this, drive for at least 500 metres after filling the tank to let air bubbles escape from the fuel tank; then add fuel again.]
9. Connect multimeter (resistance test) as shown in table. [Note: To test the maximum and minimum resistance values for "“tank full”" and "“tank empty”", remove the fuel delivery unit and move the sender float all the way to its top or bottom position.The following values are obtained with the fuel delivery unit removed, due to the greater travel of the float arm:]
10. Connect multimeter (resistance test) as shown in table.
11. Install fuel delivery unit/fuel gauge senderG.

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