2020 Audi Q3 Electrical Parts

This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator. Read more

10 Alternator / Generator parts are listed for the 2020 Audi Q3, from PURE ENERGY, REMY, TERREPOWER and 4 other brands. TYC 221081 carries the "Popular" badge.

In the New grade, TYC, WAI GLOBAL and VALEO supply 3 parts: brand-new units rather than rebuilt ones. A representative part number is TYC 221081.

In the Remanufactured grade, PURE ENERGY, REMY and TERREPOWER supply 6 parts: factory-rebuilt units with new wear components. A representative part number is PURE ENERGY 11894.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

This table covers the pulleys on the alternator shaft. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

2 Alternator / Generator Pulley parts for the 2020 Audi Q3 come from 2 brands — CONTINENTAL and LITENS.

Part numbers include CONTINENTAL 49934 and LITENS 920851A.

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

16 Battery parts for the 2020 Audi Q3 come from 7 brands — ACDELCO, DEKA, LUCAS and 4 other brands. The "Popular" part is ACDELCO 47AGM. 12 parts fit every engine; the other 4 are engine-specific.

In the AGM (Extended Life) grade, ACDELCO, DEKA, LUCAS and 3 other brands supply 14 parts: grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 47AGM.

In the Performance AGM (Extended Life + Increased Power) grade, FULLRIVER supplies 2 parts: grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. A representative part number is FULLRIVER FT61047.

This table covers the Cruise Control Distance sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Cruise Control Distance Sensor parts for the 2020 Audi Q3 come from 2 brands — ÜRO PARTS and VEMO.

Listed part numbers: ÜRO PARTS 2Q0907561J and VEMO V10720437.

This table covers the ultrasonic park-aid sensors in the bumper. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

8 Parking Aid Sensor parts are listed for the 2020 Audi Q3, from STANDARD MOTOR PRODUCTS, VARIOUS MFR and HELLA. STANDARD MOTOR PRODUCTS PPS120 carries the "Popular" badge. 6 parts fit every engine; the other 2 are engine-specific.

Listed part numbers: STANDARD MOTOR PRODUCTS PPS120, STANDARD MOTOR PRODUCTS PPS112 and HELLA 358141711, plus the other parts above.

This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

This group shows a single part: VEMO V10720249.

This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

6 Starter Motor parts are listed for the 2020 Audi Q3, from BOSCH, WAI GLOBAL, PURE ENERGY and 2 other brands. WAI GLOBAL 30273N carries the "Popular" badge.

New: 2 parts, from WAI GLOBAL and BOSCH. A representative part number is WAI GLOBAL 30273N.

Remanufactured: 4 parts, from PURE ENERGY, BOSCH, REMY and 1 other brand. A representative part number is PURE ENERGY 19168.

Listed part numbers: WAI GLOBAL 30273N, BOSCH SR0894N and PURE ENERGY 19168, plus the other parts above.