This page lists 65 electrical switch & relay parts for the 2015 Audi R8, across 24 part types, covering the 4.2L V8 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2015 Audi R8, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. 17 parts of the 65 listed are Oil Pressure Sender / Switch (7 parts), A/C Refrigerant Pressure Switch (5 parts) and Brake Light Switch (5 parts). The other 21 part types cover the remaining 48 parts.
The 2015 Audi R8 came with a single engine, the 4.2L V8, and every part is verified against it.
15 brands supply electrical switch & relay parts for the 2015 Audi R8, led by WELLS (17 parts), STANDARD MOTOR PRODUCTS (11 parts) and VEMO (10 parts), plus 12 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2015 Audi R8. 6 parts have it, including MAHLE / CLEVITE ASE21000P (A/C Refrigerant Pressure Switch) and VEMO V10730156 (Brake Light Switch). Each part number opens a page with every vehicle that part fits.
A/C Condenser Fan Motor Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 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.
One part is listed for the 2015 Audi R8 — HELLA 933332451.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE Popular | ASE21000P | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with 3 Ports for Pressure SwitchPassenger Car EC | View on Amazon |
| FOUR SEASONS | 37427 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Switch | View on Amazon |
| GPD | 1712374 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Transducer | View on Amazon |
| UAC | SW11224C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Transducer | View on Amazon |
| VEMO | V10730300 | 🇺🇸 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.
5 A/C Refrigerant Pressure Switch parts are listed for the 2015 Audi R8, from MAHLE / CLEVITE, FOUR SEASONS, GPD and 2 other brands. MAHLE / CLEVITE ASE21000P carries the "Popular" badge.
This group includes MAHLE / CLEVITE ASE21000P, FOUR SEASONS 37427 and GPD 1712374 and the remaining parts above.
ABS Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | RY577 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Functions: Fuel Pump Relay | View on Amazon |
| WELLS | 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 are listed for the 2015 Audi R8, from STANDARD MOTOR PRODUCTS and WELLS.
Listed part numbers: STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.
Accessory Power Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 933332451 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4-pin connector | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY577 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Functions: Fuel Pump Relay | View on Amazon |
| WELLS | 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 for the 2015 Audi R8 come from 3 brands — HELLA, STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include HELLA 933332451, STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.
Alternator / Generator Diode Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | RY1981 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the relays that control the Alternator / Generator Diode 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: STANDARD MOTOR PRODUCTS RY1981.
Back Up / Reverse Lamp Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO | V10730145 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Plug (Connector): 2 PinsThread Size: M14 X 1.5 | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 2011864 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Manual trans. | View on Amazon |
| FACET | 76256 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Manual trans. | 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.
3 Back Up / Reverse Lamp Switch parts are listed for the 2015 Audi R8, from VEMO, BECK/ARNLEY and FACET.
In the Economy grade, VEMO supplies 1 part: the catalog's value-priced group. A representative part number is VEMO V10730145.
The Standard Replacement section lists 2 options from BECK/ARNLEY and FACET — built to original-equipment specification. BECK/ARNLEY 2011864 is listed in this group.
Part numbers include VEMO V10730145, BECK/ARNLEY 2011864 and FACET 76256.
Brake Light Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Popular | V10730156 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Plug (Connector): 4 Pins | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 2011986 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| FACET | 71228 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | SLS478 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS | 1S7032 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | 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.
5 Brake Light Switch parts are listed for the 2015 Audi R8, from VEMO, BECK/ARNLEY, FACET and 2 other brands. VEMO V10730156 carries the "Popular" badge.
Economy: 1 part, from VEMO. A representative part number is VEMO V10730156.
The Standard Replacement section: 4 options from BECK/ARNLEY, FACET, STANDARD MOTOR PRODUCTS and 1 other brand. BECK/ARNLEY 2011986 is listed in this group.
This group includes VEMO V10730156, BECK/ARNLEY 2011986 and FACET 71228 and the remaining parts above.
Clutch Pedal Position / Starter Safety Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FACET | 71309 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | NS692 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Gender: Female | View on Amazon |
| WELLS | 1S16670 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
3 Clutch Pedal Position / Starter Safety Switch parts for the 2015 Audi R8 come from 3 brands — FACET, STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include FACET 71309, STANDARD MOTOR PRODUCTS NS692 and WELLS 1S16670.
Cruise Control Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1S12772 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Cruise Control 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: WELLS 1S12772.
Dimmer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1S12772 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the dimmer switches that select headlamp high and low beam. 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: WELLS 1S12772.
Fog / Driving Lamp Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 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.
One part is listed for the 2015 Audi R8 — HELLA 933332451.
Fuel Pump / Circuit Opening Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Popular | 1R2303 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
| HELLA | 933332451 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4-pin connector | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY577 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Functions: Fuel Pump Relay | View on Amazon |
| VEMO | V15710076 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Executive US equipment | View on Amazon |
| VEMO | V15710047 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1/143 | 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 are listed for the 2015 Audi R8, from VEMO, WELLS, HELLA and 1 other brand. WELLS 1R2303 carries the "Popular" badge.
This group includes WELLS 1R2303, HELLA 933332451 and STANDARD MOTOR PRODUCTS RY577 and the remaining parts above.
Horn Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 965453801 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 5-pin connector | View on Amazon |
| VEMO | V15710040 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Plug (Connector): 5 Pins | View on Amazon |
| WELLS | 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 for the 2015 Audi R8 come from 3 brands — HELLA, VEMO and WELLS.
Listed part numbers: HELLA 965453801, VEMO V15710040 and WELLS 1R2303.
Ignition Starter Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP | SKUS672 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| VEMO | V15803229 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Plug (Connector): 6 Pins | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | US672 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ROSTRA | 630052 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS | 1S10953 | 🇺🇸 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.
5 Ignition Starter Switch parts for the 2015 Audi R8 come from 5 brands — SKP, VEMO, STANDARD MOTOR PRODUCTS and 2 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS US672.
The Economy section: 2 options from SKP and VEMO. SKP SKUS672 is listed in this group.
Standard Replacement: 3 parts, from STANDARD MOTOR PRODUCTS, ROSTRA and WELLS. A representative part number is STANDARD MOTOR PRODUCTS US672.
Listed part numbers: STANDARD MOTOR PRODUCTS US672, SKP SKUS672 and VEMO V15803229, plus the other parts above.
Instrument Panel Dimmer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA | 650770 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Instrument Panel Dimmer Switch Only | View on Amazon |
| WELLS | 1S12328 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Instrument Panel Dimmer 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 Instrument Panel Dimmer Switch parts are listed for the 2015 Audi R8, from ROSTRA and WELLS.
This group includes ROSTRA 650770 and WELLS 1S12328.
Multi-Function Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | 0986AH0307 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Purpose Relay | View on Amazon |
| ÜRO PARTS | 7M0951253A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS | 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.
3 Multi-Function Relay parts are listed for the 2015 Audi R8, from BOSCH, ÜRO PARTS and WELLS.
Part numbers include BOSCH 0986AH0307, ÜRO PARTS 7M0951253A and WELLS 1R1007.
Oil Pressure Sender / Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO | V10730237 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Color-Black | View on Amazon |
| WALKER PRODUCTS | 2561078 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular | 2011987 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Light | View on Amazon |
| FACET Popular | 70171 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GPD | 1815354 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Light | View on Amazon |
| STANDARD MOTOR PRODUCTS | PS488 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
| WELLS | 1S10850 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits 1.20 - 1.60 BarBlackor 1.20 - 1.60 Bar | 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.
7 Oil Pressure Sender / Switch parts are listed for the 2015 Audi R8, from VEMO, WALKER PRODUCTS, BECK/ARNLEY and 4 other brands. BECK/ARNLEY 2011987 carries the "Popular" badge.
Economy: 2 parts, from VEMO and WALKER PRODUCTS. A representative part number is VEMO V10730237.
The Standard Replacement section: 5 options from BECK/ARNLEY, FACET, GPD and 2 other brands. BECK/ARNLEY 2011987 is listed in this group.
Listed part numbers: BECK/ARNLEY 2011987, VEMO V10730237 and WALKER PRODUCTS 2561078, plus the other parts above.
Parking Brake Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO | V10730453 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Parking Brake 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 2015 Audi R8 — VEMO V10730453.
Power Seat Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | PSW185 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Left | 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: STANDARD MOTOR PRODUCTS PSW185.
Power Window Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA | 662020 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Left | View on Amazon |
| ROSTRA | 662021 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Right | View on Amazon |
| WELLS | 1S13077 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | 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.
3 Power Window Switch parts are listed for the 2015 Audi R8, from ROSTRA and WELLS.
Listed part numbers: ROSTRA 662020, ROSTRA 662021 and WELLS 1S13077.
Radiator Fan Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 933332451 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4-pin connector | View on Amazon |
| VEMO | V15710007 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Plug (Connector): 4 Pins | 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.
2 Radiator Fan Relay parts for the 2015 Audi R8 come from 2 brands — HELLA and VEMO.
Part numbers include HELLA 933332451 and VEMO V15710007.
Starter Motor Control Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA | 600027 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Voltage: 12 Volts (Direct Current) | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY577 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Functions: Fuel Pump Relay | View on Amazon |
| WELLS | 1R1007 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
| WELLS | 1R2303 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
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.
4 Starter Motor Control Relay parts for the 2015 Audi R8 come from 3 brands — WELLS, ROSTRA and STANDARD MOTOR PRODUCTS.
This group includes ROSTRA 600027, STANDARD MOTOR PRODUCTS RY577 and WELLS 1R1007 and the remaining parts above.
Turn Signal Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1S12772 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
One part is listed for the 2015 Audi R8 — WELLS 1S12772.
Washer Pump Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | RY577 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Functions: Fuel Pump Relay | View on Amazon |
| WELLS | 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 are listed for the 2015 Audi R8, from STANDARD MOTOR PRODUCTS and WELLS.
This group includes STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.
Buying Electrical Switch & Relay Parts for a 2015 Audi R8
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 4.2L V8 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 A/C Refrigerant Pressure Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2015 Audi R8?
Our catalog currently lists 65 electrical switch & relay parts for the 2015 Audi R8 across 24 subcategories and 15 brands, covering the 4.2L V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical switch & relay problems on a 2015 Audi R8?
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 2015 Audi R8 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 2015 Audi R8?
Every part on this page is matched to the 4.2L V8 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 2015 Audi R8
Electrical Switch & Relay Parts for Other Audi R8 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.