The 2016 Audi A3 has 87 electrical switch & relay parts with verified fitment on this page — 22 part types and 17 brands, covering all 5 engine options (1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 1.8L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged and 2.0L L4 Turbocharged). Each part includes a manufacturer part number and application notes.
On the 2016 Audi A3, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. Most of the listed parts are Oil Pressure Sender / Switch (32 parts), A/C Refrigerant Pressure Switch (7 parts) and Brake Light Switch (7 parts). The other 19 part types cover the remaining 41 parts.
The 2016 Audi A3 was sold with 5 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2016 Audi A3 electrical switch & relay parts are VEMO (19 parts), WELLS (14 parts) and HELLA (9 parts), plus 14 more brands. Quality grades include Standard Replacement and Economy.
9 parts on this 2016 Audi A3 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including UAC SW11224C (A/C Refrigerant Pressure Switch) and STANDARD MOTOR PRODUCTS SLS473 (Brake Light Switch). Click any part number to see every vehicle that part fits.
A/C Condenser Fan Motor Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 933332451 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4-pin connector | View on Amazon |
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.
This group shows a single part: HELLA 933332451.
A/C Pressure Safety Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | V10730521 | 🇺🇸 US 🇨🇦 CA | with Seal RingTo 07/14/2016 | View on Amazon |
This table covers the A/C Pressure 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.
One part is listed for the 2016 Audi A3 — VEMO V10730521.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UAC Popular Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged, 1.4L L4 ELECTRIC/GAS Turbocharged | SW11224C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Transducer | View on Amazon |
| FOUR SEASONS Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 37427 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Switch | View on Amazon |
| GPD Fits: 2.0L L4 DIESEL Turbocharged | 1712374 | 🇺🇸 US 🇨🇦 CA | Pressure Transducer | View on Amazon |
| JAPANESE OE Fits: 1.4L L4 Turbocharged | 3ACP0018 | 🇲🇽 MX | Sensata | View on Amazon |
| VEMO Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 DIESEL Turbocharged | V10730300 | 🇺🇸 US | View on Amazon | |
| VNE Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged | 4016002 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 5S16908 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
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.
7 A/C Refrigerant Pressure Switch parts for the 2016 Audi A3 come from 7 brands — UAC, FOUR SEASONS, GPD and 4 other brands. The "Popular" part is UAC SW11224C.
This group includes UAC SW11224C, FOUR SEASONS 37427 and GPD 1712374 and the remaining parts above.
A/C Trinary Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 1711374 | 🇺🇸 US 🇨🇦 CA | Trinary Switch | View on Amazon |
This table covers the A/C Trinary 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.
One part is listed for the 2016 Audi A3 — GPD 1711374.
ABS Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | RY577 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Functions: Fuel Pump Relay | View on Amazon |
| WELLS Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 1R2303 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
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.
2 ABS Relay parts for the 2016 Audi A3 come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
This group includes STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.
Accessory Power Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 933332451 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4-pin connector | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | RY577 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Functions: Fuel Pump Relay | View on Amazon |
| WELLS Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 1R2303 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
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.
3 Accessory Power Relay parts are listed for the 2016 Audi A3, from HELLA, STANDARD MOTOR PRODUCTS and WELLS.
Listed part numbers: HELLA 933332451, STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.
Back Up / Reverse Lamp Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 670061 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: 1.4L L4 Turbocharged | 1S7033 | 🇲🇽 MX | View on Amazon |
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.
2 Back Up / Reverse Lamp Switch parts for the 2016 Audi A3 come from 2 brands — ROSTRA and WELLS.
Listed part numbers: ROSTRA 670061 and WELLS 1S7033.
Brake Light Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged | 5G0698459 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| VEMO Fits: 2.0L L4 DIESEL Turbocharged | V10730389 | 🇨🇦 CA | ConvertibleRepair set | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 2.0L L4 DIESEL Turbocharged, 1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged | SLS473 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ROSTRA Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 620097 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| VEMO Fits: 2.0L L4 DIESEL Turbocharged | V46730049 | 🇺🇸 US | View on Amazon | |
| VNE Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 4013066 | 🇺🇸 US 🇨🇦 CA | Sensor SwitchBrake Light Sensor | View on Amazon |
| WELLS Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 1S10862 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
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.
7 Brake Light Switch parts for the 2016 Audi A3 come from 6 brands — VEMO, ÜRO PARTS, STANDARD MOTOR PRODUCTS and 3 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS SLS473.
The Economy section lists 2 options from ÜRO PARTS and VEMO — the catalog's value-priced group. ÜRO PARTS 5G0698459 is listed in this group.
In the Standard Replacement grade, STANDARD MOTOR PRODUCTS, ROSTRA, VEMO and 2 other brands supply 5 parts: built to original-equipment specification. A representative part number is STANDARD MOTOR PRODUCTS SLS473.
Listed part numbers: STANDARD MOTOR PRODUCTS SLS473, ÜRO PARTS 5G0698459 and VEMO V10730389, plus the other parts above.
Clutch Pedal Position / Starter Safety Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FACET Fits: 2.0L L4 DIESEL Turbocharged | 71235 | 🇺🇸 US | View on Amazon |
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.
One part is listed for the 2016 Audi A3 — FACET 71235.
Diesel Glow Plug Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MARELLI Fits: 2.0L L4 DIESEL Turbocharged | UY7A | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
This group shows a single part: MARELLI UY7A.
Fog / Driving Lamp Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 933332451 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4-pin connector | View on Amazon |
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.
This group shows a single part: HELLA 933332451.
Fuel Pump / Circuit Opening Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 933332451 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4-pin connector | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | RY577 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Functions: Fuel Pump Relay | View on Amazon |
| VEMO Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | V15710075 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VEMO Fits: 2.0L L4 DIESEL Turbocharged | V15710074 | 🇺🇸 US 🇨🇦 CA | From 05/25/2015 | View on Amazon |
| WELLS Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 1R2303 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
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.
5 Fuel Pump / Circuit Opening Relay parts for the 2016 Audi A3 come from 4 brands — VEMO, HELLA, STANDARD MOTOR PRODUCTS and 1 other brand.
Part numbers include HELLA 933332451, STANDARD MOTOR PRODUCTS RY577 and VEMO V15710075, among others listed above.
Horn Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 DIESEL Turbocharged | 965453801 | 🇺🇸 US | 5-pin connector | View on Amazon |
| VEMO Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 DIESEL Turbocharged | V15710040 | 🇺🇸 US | Plug (Connector): 5 Pins | View on Amazon |
| WELLS Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 1R2303 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
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.
3 Horn Relay parts are listed for the 2016 Audi A3, from HELLA, VEMO and WELLS.
Listed part numbers: HELLA 965453801, VEMO V15710040 and WELLS 1R2303.
Ignition Starter Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | V15803310 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without CableRadio Remote Controlled Central Locking | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | US1419 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
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.
2 Ignition Starter Switch parts are listed for the 2016 Audi A3, from VEMO and STANDARD MOTOR PRODUCTS.
Economy: 1 part, from VEMO. A representative part number is VEMO V15803310.
The Standard Replacement section: 1 option from STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS US1419 is listed in this group.
Listed part numbers: VEMO V15803310 and STANDARD MOTOR PRODUCTS US1419.
Multi-Function Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 0986AH0082 | 🇺🇸 US 🇨🇦 CA | Multi-Purpose Relay | View on Amazon |
| BOSCH Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 0986332209 | 🇺🇸 US 🇨🇦 CA | Multi-Purpose Relay | View on Amazon |
| BOSCH Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 0986AH0080 | 🇺🇸 US 🇨🇦 CA | Multi-Purpose Relay | View on Amazon |
| BOSCH Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 0986AH0307 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Purpose Relay | View on Amazon |
| ÜRO PARTS Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 7M0951253A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 1R1007 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
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.
6 Multi-Function Relay parts for the 2016 Audi A3 come from 3 brands — BOSCH, ÜRO PARTS and WELLS.
Part numbers include BOSCH 0986AH0082, BOSCH 0986332209 and BOSCH 0986AH0080, among others listed above.
Oil Pressure Sender / Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 06A919081C | 🇺🇸 US 🇨🇦 CA | with 0.3 - 0.6 Bar Sensor | View on Amazon |
| VEMO Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | V15991999 | 🇺🇸 US | Plug (Connector): 1 PinThread Size: M10 X 1 | View on Amazon |
| VEMO Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | V10730084 | 🇺🇸 US | Plug (Connector): 1 Pin or 2 PinThread Size: M10 X 1 | View on Amazon |
| VEMO Fits: 2.0L L4 DIESEL Turbocharged | V10730477 | 🇺🇸 US 🇨🇦 CA | Color-Green0.30 | View on Amazon |
| VEMO Fits: 2.0L L4 DIESEL Turbocharged | V10730478 | 🇺🇸 US 🇨🇦 CA | Color-BrownIncludes Seal | View on Amazon |
| WALKER PRODUCTS Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 2561092 | 🇺🇸 US 🇨🇦 CA | 0.30-0.60 BARGreen | View on Amazon |
| WALKER PRODUCTS Fits: 2.0L L4 DIESEL Turbocharged | 2561286 | 🇺🇸 US 🇨🇦 CA | 0.30-0.60 bar | View on Amazon |
| WALKER PRODUCTS Fits: 2.0L L4 DIESEL Turbocharged | 2561086 | 🇺🇸 US 🇨🇦 CA | 2.3-3.0 BAR | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 2011983 | 🇺🇸 US 🇨🇦 CA | with Light2.15-2.95 BAR | View on Amazon |
| FACET Popular Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 70192 | 🇺🇸 US | 2.15-2.95 BAR | View on Amazon |
| FACET Popular Fits: 2.0L L4 DIESEL Turbocharged | 70205 | 🇺🇸 US | 2.3-3.0 BAR | View on Amazon |
| FACET Popular Fits: 2.0L L4 DIESEL Turbocharged | 70204 | 🇺🇸 US | 0.30-0.60 bar | View on Amazon |
| HELLA Popular Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 008280001 | 🇺🇸 US | 1-Pin ConnectorColor: Green or Brown | View on Amazon |
| HELLA Popular Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 009600241 | 🇺🇸 US | 1-Pin ConnectorColor: Black or Color: Blue | View on Amazon |
| HELLA Popular Fits: 2.0L L4 DIESEL Turbocharged | 009600041 | 🇺🇸 US | 1-Pin Connector | View on Amazon |
| BECK/ARNLEY Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 2011946 | 🇺🇸 US 🇨🇦 CA | with Light0.30-0.60 BAR | View on Amazon |
| BECK/ARNLEY Fits: 2.0L L4 DIESEL Turbocharged | 2012736 | 🇺🇸 US 🇨🇦 CA | with Light0.30-0.60 BAR | View on Amazon |
| BECK/ARNLEY Fits: 2.0L L4 DIESEL Turbocharged | 2012735 | 🇺🇸 US 🇨🇦 CA | with Light2.3-3.0 BAR | View on Amazon |
| FACET Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 70139 | 🇺🇸 US | 0.30-0.60 bar | View on Amazon |
| GPD Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 1815319 | 🇺🇸 US 🇨🇦 CA | with LightBlue | View on Amazon |
| ROSTRA Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 501310 | 🇺🇸 US 🇨🇦 CA | Fits with Blue Connectoror 2.152.95 Bar | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | PS479 | 🇺🇸 US 🇨🇦 CA | GREEN | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | PS489 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 2 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 DIESEL Turbocharged | PS668 | 🇺🇸 US 🇨🇦 CA | brownwith 2 Blade Terminals | View on Amazon |
| WELLS Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 1S6863 | 🇺🇸 US 🇨🇦 CA | 0.30 - 0.60 BarGreen | View on Amazon |
| WELLS Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 1S10849 | 🇺🇸 US 🇨🇦 CA | 2.15 - 2.95 BarBlue | View on Amazon |
| WELLS Fits: 2.0L L4 DIESEL Turbocharged | 1S16166 | 🇺🇸 US 🇨🇦 CA | with Brown Connectorwith Gauge | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: 1.4L L4 ELECTRIC/GAS Turbocharged | 2OPS0303 | 🇺🇸 US 🇨🇦 CA | Blue1 Terminal | View on Amazon |
| HOLSTEIN Fits: 2.0L L4 DIESEL Turbocharged | 2OPS0363 | 🇺🇸 US 🇨🇦 CA | Brown2 Blade Terminal | View on Amazon |
| HOLSTEIN Fits: 2.0L L4 DIESEL Turbocharged | 2OPS0366 | 🇺🇸 US 🇨🇦 CA | Light Green2 Blade Terminal | View on Amazon |
| WELLS Fits: 1.4L L4 Turbocharged | 1S6863 | 🇲🇽 MX | 0.30 - 0.60 BarGreen | View on Amazon |
| WELLS Fits: 1.4L L4 Turbocharged | 1S10849 | 🇲🇽 MX | 2.15 - 2.95 BarBlue | View on Amazon |
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.
32 Oil Pressure Sender / Switch parts for the 2016 Audi A3 come from 11 brands — WELLS, VEMO, BECK/ARNLEY and 8 other brands. The "Popular" part is BECK/ARNLEY 2011983. Economy and Standard Replacement are all represented, and Standard Replacement alone accounts for 19 parts.
Power Seat Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | V10730370 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Left | View on Amazon |
| VEMO Fits: 2.0L L4 DIESEL Turbocharged | V10730475 | 🇺🇸 US 🇨🇦 CA | Fits SedanElectric seat adjustment F | View on Amazon |
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.
VEMO supplies both parts for the 2016 Audi A3.
Part numbers include VEMO V10730370 and VEMO V10730475.
Power Window Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 DIESEL Turbocharged | V10730029 | 🇺🇸 US | Fits Rear | View on Amazon |
| VEMO Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 DIESEL Turbocharged | V10730030 | 🇺🇸 US | Color-Chrome | View on Amazon |
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.
2 Power Window Switch parts for the 2016 Audi A3 come from VEMO.
This group includes VEMO V10730029 and VEMO V10730030.
Radiator Fan Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 933332451 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4-pin connector | View on Amazon |
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.
One part is listed for the 2016 Audi A3 — HELLA 933332451.
Trunk Lid / Tailgate Release Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 DIESEL Turbocharged | 5N0827566T | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 DIESEL Turbocharged | V10730653 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS Fits: 1.4L L4 Turbocharged | 5N0827566T | 🇲🇽 MX | View on Amazon |
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.
3 Trunk Lid / Tailgate Release Switch parts are listed for the 2016 Audi A3, from ÜRO PARTS and VEMO.
Economy: 1 part, from ÜRO PARTS. A representative part number is ÜRO PARTS 5N0827566T.
The Standard Replacement section: 1 option from VEMO. VEMO V10730653 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
This group includes ÜRO PARTS 5N0827566T and VEMO V10730653 and the remaining parts above.
Turn Signal Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: 1.4L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 DIESEL Turbocharged | V15800033 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VEMO Fits: 2.0L L4 DIESEL Turbocharged | V15803351 | 🇺🇸 US 🇨🇦 CA | Electronic cruise control system (CCS) [8T2]without multi-function display/ trip computer "Medium" [9S4] | View on Amazon |
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.
2 Turn Signal Switch parts for the 2016 Audi A3 come from VEMO.
This group includes VEMO V15800033 and VEMO V15803351.
Washer Pump Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | RY577 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Functions: Fuel Pump Relay | View on Amazon |
| WELLS Fits: 1.4L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged | 1R2303 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
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.
2 Washer Pump Relay parts for the 2016 Audi A3 come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
Listed part numbers: STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.
Buying Electrical Switch & Relay Parts for a 2016 Audi A3
On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.
- Match the engine first. Every electrical switch & relay part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Oil Pressure Sender / Switch and A/C Refrigerant Pressure Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2016 Audi A3?
Our catalog currently lists 87 electrical switch & relay parts for the 2016 Audi A3 across 22 subcategories and 17 brands, covering all 5 engine options (1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 1.8L L4 Turbocharged, 2.0L L4 DIESEL Turbocharged and 2.0L L4 Turbocharged). Each part is matched to the engine(s) it fits.
Do electrical switch & relay parts differ between 2016 Audi A3 engines?
Yes. Every electrical switch & relay part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical switch & relay problems on a 2016 Audi A3?
Common symptoms include accessories that work intermittently, a click without action, or one function dead while its fuse tests fine. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2016 Audi A3 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2016 Audi A3?
First match the engine — each row shows which engine(s) the part fits. Then swap a suspect relay with an identical known-good one from the fuse box before buying — it is the fastest diagnostic there is. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2016 Audi A3
Electrical Switch & Relay Parts for Other Audi A3 Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.