audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Fuel Tank Sending Unit - Diagnosis|Page 26669 > < Fuel Tank Sending Unit - Diagnosis|Page 26667
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Reconnect fuel supply line to sending unit -G- with appropriate clamp.

Fuel gauge sending unit -G-, checking

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Check resistance between pin 3 of sending unit -G- and pin 2 of sending unit -G169-.

Specified values:

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Tank empty: approx. 20 Ohms.

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Tank full: approx. 70 Ohms.

If specified values are not obtained:

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Check wiring per diagram --> illustration 97-A492 (checks wiring inside fuel tank between sending units).

If wiring is faulty:

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Remove sender from fuel tank.

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Repair wiring.

If wiring is OK:

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Remove sender from fuel tank.

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Test sender.

If specified values are not obtained:

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Replace sender.

Fuel gauge sending unit -G169-, checking

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Check resistance between pin 2 of sending unit -G- and pin 1 of sending unit -G169-.

Fuel Tank Sending Unit - Diagnosis|Page 26669 > < Fuel Tank Sending Unit - Diagnosis|Page 26667