2018 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

This group shows a single part: 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

5 A/C Refrigerant Pressure Switch parts for the 2018 Audi Q3 come from 5 brands — UAC, DORMAN, FOUR SEASONS and 2 other brands. The "Popular" part is UAC SW11224C.

Listed part numbers: UAC SW11224C, DORMAN 904613 and FOUR SEASONS 20972, plus the other parts above.

This table covers the relays that control the ABS 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 ABS Relay parts for the 2018 Audi Q3 come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.

This group includes STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.

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

3 Accessory Power Relay parts are listed for the 2018 Audi Q3, from HELLA, STANDARD MOTOR PRODUCTS and WELLS.

This group includes HELLA 933332451, STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.

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

3 Brake Light Switch parts for the 2018 Audi Q3 come from 3 brands — DORMAN, ROSTRA and WELLS.

The Economy section lists 1 option from DORMAN — the catalog's value-priced group. DORMAN 920496 is listed in this group.

In the Standard Replacement grade, ROSTRA and WELLS supply 2 parts: built to original-equipment specification. A representative part number is ROSTRA 620097.

Part numbers include DORMAN 920496, ROSTRA 620097 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

This group shows a single part: 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

3 Fuel Pump / Circuit Opening Relay parts for the 2018 Audi Q3 come from 3 brands — HELLA, STANDARD MOTOR PRODUCTS and WELLS.

Listed part numbers: HELLA 933332451, STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.

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

One part is listed for the 2018 Audi Q3 — 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

2 Ignition Starter Switch parts are listed for the 2018 Audi Q3, from STANDARD MOTOR PRODUCTS and WELLS.

Listed part numbers: STANDARD MOTOR PRODUCTS US1127 and WELLS 1S11933.

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

3 Multi-Function Relay parts for the 2018 Audi Q3 come from 3 brands — BOSCH, ÜRO PARTS and WELLS.

Listed part numbers: BOSCH 0986AH0307, ÜRO PARTS 7M0951253A and WELLS 1R1007.

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

2 Oil Pressure Sender / Switch parts for the 2018 Audi Q3 come from 2 brands — BECK/ARNLEY and ÜRO PARTS.

This group includes BECK/ARNLEY 2011739 and ÜRO PARTS 06A919081A.

This table covers the switches that command each window motor. 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 Power Window Switch parts for the 2018 Audi Q3 come from 2 brands — WELLS and STANDARD MOTOR PRODUCTS.

This group includes STANDARD MOTOR PRODUCTS DWS2198, WELLS 1S13089 and WELLS 1S13072.

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

One part is listed for the 2018 Audi Q3 — HELLA 933332451.

This table covers the relays that control the Starter Motor Control 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 Starter Motor Control Relay parts are listed for the 2018 Audi Q3, from STANDARD MOTOR PRODUCTS and WELLS.

Listed part numbers: STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.

This table covers the relays that control the Washer Pump 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 Washer Pump Relay parts for the 2018 Audi Q3 come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.

Listed part numbers: STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.