2015 Audi A3 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 2015 Audi A3 — 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

7 A/C Refrigerant Pressure Switch parts are listed for the 2015 Audi A3, from UAC, MAHLE / CLEVITE, FOUR SEASONS and 3 other brands. MAHLE / CLEVITE ASE21000P carries the "Popular" badge.

This group includes MAHLE / CLEVITE ASE21000P, UAC SW11224C and FOUR SEASONS 37427 and the remaining 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 are listed for the 2015 Audi A3, from STANDARD MOTOR PRODUCTS and WELLS.

Part numbers include 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 for the 2015 Audi A3 come from 3 brands — HELLA, STANDARD MOTOR PRODUCTS and WELLS.

Part numbers include HELLA 933332451, STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.

This table covers the Back Up / Reverse Lamp 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

2 Back Up / Reverse Lamp Switch parts are listed for the 2015 Audi A3, from ROSTRA and WELLS.

This group includes ROSTRA 670061 and WELLS 1S7033.

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

6 Brake Light Switch parts are listed for the 2015 Audi A3, from VEMO, ÜRO PARTS, STANDARD MOTOR PRODUCTS and 2 other brands. STANDARD MOTOR PRODUCTS SLS473 carries the "Popular" badge.

In the Economy grade, ÜRO PARTS and VEMO supply 2 parts: the catalog's value-priced group. A representative part number is ÜRO PARTS 5G0698459.

The Standard Replacement section lists 4 options from STANDARD MOTOR PRODUCTS, ROSTRA, VEMO and 1 other brand — built to original-equipment specification. STANDARD MOTOR PRODUCTS SLS473 is listed in this group.

Listed part numbers: STANDARD MOTOR PRODUCTS SLS473, ÜRO PARTS 5G0698459 and VEMO V10730389, plus the other parts above.

This table covers the Clutch Pedal Position / Starter Safety 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: FACET 71235.

This table covers the Diesel Glow Plug 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

One part is listed for the 2015 Audi A3 — MARELLI UY7A.

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 2015 Audi A3 — 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

5 Fuel Pump / Circuit Opening Relay parts are listed for the 2015 Audi A3, from VEMO, HELLA, STANDARD MOTOR PRODUCTS and 1 other brand.

This group includes HELLA 933332451, STANDARD MOTOR PRODUCTS RY577 and VEMO V15710075 and the remaining parts above.

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

3 Horn Relay parts for the 2015 Audi A3 come from 3 brands — HELLA, VEMO and WELLS.

This group includes HELLA 965453801, VEMO V15710040 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

2 Ignition Starter Switch parts for the 2015 Audi A3 come from 2 brands — VEMO and STANDARD MOTOR PRODUCTS.

The Economy section: 1 option from VEMO. VEMO V15803310 is listed in this group.

Standard Replacement: 1 part, from STANDARD MOTOR PRODUCTS. A representative part number is STANDARD MOTOR PRODUCTS US1419.

Part numbers include VEMO V15803310 and STANDARD MOTOR PRODUCTS US1419.

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 are listed for the 2015 Audi A3, from BOSCH, ÜRO PARTS and WELLS.

Part numbers include 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

44 Oil Pressure Sender / Switch parts are listed for the 2015 Audi A3, from WELLS, VEMO, WALKER PRODUCTS and 9 other brands. REIN ELP0078 carries the "Popular" badge. They are grouped as Economy and Standard Replacement, with Standard Replacement the largest group at 26 parts from HELLA, BECK/ARNLEY, FACET and 4 other brands.

This table covers the Power Seat 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

2 Power Seat Switch parts for the 2015 Audi A3 come from VEMO.

Listed part numbers: VEMO V10730370 and VEMO V10730475.

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

VEMO supplies both parts for the 2015 Audi A3.

Listed part numbers: VEMO V10730029 and VEMO V10730030.

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

3 Trunk Lid / Tailgate Release Switch parts for the 2015 Audi A3 come from 2 brands — ÜRO PARTS and VEMO.

The Economy section: 1 option from ÜRO PARTS. ÜRO PARTS 5N0827566T is listed in this group.

Standard Replacement: 1 part, from VEMO. A representative part number is VEMO V10730653.

1 further part sits outside the graded sections, with the same engine-level match.

This group includes ÜRO PARTS 5N0827566T and VEMO V10730653 and the remaining parts above.

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 2015 Audi A3.

Listed part numbers: VEMO V15800033 and VEMO V15803351.

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 are listed for the 2015 Audi A3, from STANDARD MOTOR PRODUCTS and WELLS.

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