13 Electrical switch & relay parts are listed for the 2020 Audi RS3, in 6 part types, covering the 2.5L L5 Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
The switch and relay system on the 2020 Audi RS3 covers the switches, relays and flashers that route power to everything the driver touches. The largest groups are Oil Pressure Sender / Switch (4 parts), Ignition Starter Switch (3 parts) and A/C Refrigerant Pressure Switch (2 parts). The other 3 part types cover the remaining 4 parts.
The 2020 Audi RS3 came with a single engine, the 2.5L L5 Turbocharged, and every part is verified against it.
8 brands supply electrical switch & relay parts for the 2020 Audi RS3, led by VEMO (4 parts), WELLS (3 parts) and UAC (1 part), plus 5 more brands. Quality grades include Standard Replacement and Economy.
Each part number listed for the 2020 Audi RS3 opens a page with every vehicle that part fits.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UAC | SW11224C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Transducer | View on Amazon |
| VNE | 4016002 | 🇺🇸 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.
2 A/C Refrigerant Pressure Switch parts are listed for the 2020 Audi RS3, from UAC and VNE.
This group includes UAC SW11224C and VNE 4016002.
Brake Light Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS | 5G0698459 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 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.
2 Brake Light Switch parts are listed for the 2020 Audi RS3, from ÜRO PARTS and WELLS.
In the Economy grade, ÜRO PARTS supplies 1 part: the catalog's value-priced group. A representative part number is ÜRO PARTS 5G0698459.
The Standard Replacement section lists 1 option from WELLS — built to original-equipment specification. WELLS 1S10862 is listed in this group.
Part numbers include ÜRO PARTS 5G0698459 and WELLS 1S10862.
Ignition Starter Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO | V15803358 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO | V15803348 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Central locking system "Keyless Entry" [4F2] or Central locking system "Keyless Entry" without deadlock [4I3] | View on Amazon |
| WELLS | 1S17905 | 🇺🇸 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.
3 Ignition Starter Switch parts for the 2020 Audi RS3 come from 2 brands — VEMO and WELLS.
The Economy section: 1 option from VEMO. VEMO V15803358 is listed in this group.
Standard Replacement: 2 parts, from VEMO and WELLS. A representative part number is VEMO V15803348.
Listed part numbers: VEMO V15803358, VEMO V15803348 and WELLS 1S17905.
Oil Pressure Sender / Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FACET | 250053 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GPD | 1816565 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | PS778 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Type: Plug InFinish: Metal, Plastic | View on Amazon |
| WELLS | 1S16084 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
4 Oil Pressure Sender / Switch parts are listed for the 2020 Audi RS3, from FACET, GPD, STANDARD MOTOR PRODUCTS and 1 other brand.
This group includes FACET 250053, GPD 1816565 and STANDARD MOTOR PRODUCTS PS778 and the remaining parts above.
Power Seat Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO | V10730475 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Electric 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.
This group shows a single part: VEMO V10730475.
Trunk Lid / Tailgate Release Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO | V10730653 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | 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.
This group shows a single part: VEMO V10730653.
Buying Electrical Switch & Relay Parts for a 2020 Audi RS3
On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.
- Confirm you have the 2.5L L5 Turbocharged engine — every part on this page is matched to it.
- 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 Ignition Starter Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2020 Audi RS3?
Our catalog currently lists 13 electrical switch & relay parts for the 2020 Audi RS3 across 6 subcategories and 8 brands, covering the 2.5L L5 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical switch & relay problems on a 2020 Audi RS3?
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 2020 Audi RS3 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 2020 Audi RS3?
Every part on this page is matched to the 2.5L L5 Turbocharged engine. 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 2020 Audi RS3
Electrical Switch & Relay Parts for Other Audi RS3 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.