2020 Audi Q3 Electrical Switch & Relay Parts

This table covers the relays that control the A/C Condenser Fan Motor circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

One part is listed for the 2020 Audi Q3 — HELLA 933332451.

This table covers the pressure switches on the A/C circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

3 A/C Refrigerant Pressure Switch parts are listed for the 2020 Audi Q3, from FOUR SEASONS, UAC and VNE. 2 parts fit every engine; the other 1 is engine-specific.

Part numbers include FOUR SEASONS 37427, UAC SW11224C and VNE 4016002.

This table covers the relays that control the Accessory Power circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

This group shows a single part: HELLA 933332451.

This table covers the pedal-mounted switch that turns on the brake lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

2 Brake Light Switch parts are listed for the 2020 Audi Q3, from DORMAN and WELLS. All of them fit every engine offered in the 2020 Q3.

In the Economy grade, DORMAN supplies 1 part: the catalog's value-priced group. A representative part number is DORMAN 920496.

The Standard Replacement section lists 1 option from WELLS — built to original-equipment specification. WELLS 1S10862 is listed in this group.

Listed part numbers: DORMAN 920496 and WELLS 1S10862.

This table covers the relays that control the Fog / Driving Lamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

One part is listed for the 2020 Audi Q3 — HELLA 933332451.

This table covers the relays that control the Fuel Pump / Circuit Opening circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

One part is listed for the 2020 Audi Q3 — HELLA 933332451.

This table covers the relays that control the Horn circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

2 Horn Relay parts for the 2020 Audi Q3 come from 2 brands — HELLA and WELLS. 1 part fits every engine; the other 1 is engine-specific.

This group includes HELLA 965453801 and WELLS 1R2303.

This table covers the ignition switches that feed the starter circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

This group shows a single part: VEMO V15803358.

This table covers the relays that control the Multi-Function circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

2 Multi-Function Relay parts are listed for the 2020 Audi Q3, from ÜRO PARTS and WELLS. All of them fit every engine offered in the 2020 Q3.

Listed part numbers: ÜRO PARTS 7M0951253A and WELLS 1R1007.

This table covers the Neutral Safety Switch / Range 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

One part is listed for the 2020 Audi Q3 — ÜRO PARTS 09G919823.

This table covers the senders and switches that report oil pressure to the gauge or lamp. Typical signs include a lamp that stays on, or a gauge that never moves. Confirm power and ground at the connector before replacing the sender or switch. Read more

9 Oil Pressure Sender / Switch parts are listed for the 2020 Audi Q3, from STANDARD MOTOR PRODUCTS, ROSTRA, REIN and 4 other brands. REIN ELP0078 carries the "Popular" badge.

Economy: 2 parts, from REIN and WALKER PRODUCTS. A representative part number is REIN ELP0078.

The Standard Replacement section: 5 options from STANDARD MOTOR PRODUCTS, HELLA, ROSTRA and 1 other brand. STANDARD MOTOR PRODUCTS PS400 is listed in this group.

2 ungrouped parts are not assigned to a grade, with the same engine-level match.

Listed part numbers: REIN ELP0078, WALKER PRODUCTS 2561102 and STANDARD MOTOR PRODUCTS PS400, plus the other parts above.

This table covers the relays that control the Radiator Fan circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

This group shows a single part: HELLA 933332451.

This table covers the Trunk Lid / Tailgate Release switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

This group shows a single part: VEMO V10730458.

This table covers the combination / turn-signal switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

VEMO supplies both parts for the 2020 Audi Q3.

Listed part numbers: VEMO V10800006 and VEMO V10800008.