This page lists 58 electrical bulb & socket parts for the 2015 Audi S4, across 7 part types, covering the 3.0L V6 Supercharged engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2015 Audi S4, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. Most of the listed parts are Cornering Lamp Bulb (18 parts), Dome Light Bulb (11 parts) and Back Up / Reverse Lamp Bulb (9 parts). The other 4 part types cover the remaining 20 parts.
The 2015 Audi S4 came with a single engine, the 3.0L V6 Supercharged, and every part is verified against it.
7 brands supply electrical bulb & socket parts for the 2015 Audi S4, led by SYLVANIA (19 parts), HELLA (17 parts) and WAGNER (14 parts), plus 4 more brands. Quality grades include Standard Replacement, LED and Extra Bright.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2015 Audi S4. 13 parts have it, including PHILIPS 921WLED (Back Up / Reverse Lamp Bulb) and HELLA H7LL (Cornering Lamp Bulb). Each part number opens a page with every vehicle that part fits.
Back Up / Reverse Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 921ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular | 921WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDWhite | View on Amazon |
| WAGNER | 921WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA | 6418 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: SV8.5-8 | View on Amazon |
| SYLVANIA | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 18.00 W | View on Amazon |
| WAGNER | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Bulb Type: T-5 Bulb 5/8 (16mm) DiameterVoltage: 12.800 Volts (Direct Current) | View on Amazon |
This table covers the bulbs in the reverse lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
9 Back Up / Reverse Lamp Bulb parts for the 2015 Audi S4 come from 4 brands — SYLVANIA, WAGNER, HELLA and 1 other brand. The "Popular" part is PHILIPS 921WLED.
In the Extended Life grade, SYLVANIA and WAGNER supply 2 parts: grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. A representative part number is SYLVANIA 921LL.
In the Extra Bright (improved visibility, but shorter life) grade, SYLVANIA supplies 1 part: grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. A representative part number is SYLVANIA 921ST.
The LED (instant-on, long life, energy-saving) section lists 2 options from PHILIPS and WAGNER — grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. PHILIPS 921WLED is listed in this group.
In the Standard Replacement grade, HELLA, SYLVANIA and WAGNER supply 4 parts: built to original-equipment specification. A representative part number is HELLA 921.
Part numbers include PHILIPS 921WLED, SYLVANIA 921LL and SYLVANIA 921ST, among others listed above.
Brake Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS | 1156RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | VisionLED | View on Amazon |
This table covers the bulbs in the stop lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
This group shows a single part: PHILIPS 1156RLED.
Cornering Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | H7LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenSocket Type Bulb: PX26D | View on Amazon |
| SYLVANIA | H7LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
| WAGNER | 1255H7LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | H7P50 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenPerformance 50+ | View on Amazon |
| HELLA | H7100W | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Halogen100 Watt | View on Amazon |
| HELLA | H770W | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 70 WattHalogen | View on Amazon |
| SYLVANIA | H7XV | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Xtra VisionColor Temperature: 3200 KV | View on Amazon |
| SYLVANIA | H7ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Color Temperature: 4000 KVSilver Star | View on Amazon |
| SYLVANIA | H7SU | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star UltraColor Temperature: 4100 KV | View on Amazon |
| SYLVANIA | H7SZG | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star zXe GOLDColor Temperature: 4200 KV | View on Amazon |
| WAGNER | H7TVX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Truview PlusPX26D Base | View on Amazon |
| WAGNER | H7BLX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BritelitePX26D Base | View on Amazon |
Reduced Glare (for rain, fog, snow, or rural driving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | H71070702 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extreme YellowHalogen | View on Amazon |
| HELLA | H7YL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Halogen2900K | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | H7 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenSocket Type Bulb: PX26D | View on Amazon |
| WAGNER Popular | 1255H7 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Halogen Capsule | View on Amazon |
| SYLVANIA | H7 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: PX26DWattage: 55.00 W | View on Amazon |
| WAGNER | 2475H7 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 24 VoltHalogen | View on Amazon |
This table covers the replacement bulbs for the Cornering Lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
18 Cornering Lamp Bulb parts for the 2015 Audi S4 come from 3 brands — HELLA, SYLVANIA and WAGNER. The "Popular" part is HELLA H7LL.
Extended Life: 3 parts, from HELLA, SYLVANIA and WAGNER. A representative part number is HELLA H7LL.
Extra Bright (improved visibility, but shorter life): 9 parts, from SYLVANIA, HELLA and WAGNER. A representative part number is HELLA H7P50.
The Reduced Glare (for rain, fog, snow, or rural driving) section lists 2 options from HELLA — grouped under the catalog's "Reduced Glare (for rain, fog, snow, or rural driving)" designation — the notes column spells out what sets them apart. HELLA H71070702 is listed in this group.
Standard Replacement: 4 parts, from WAGNER, HELLA and SYLVANIA. A representative part number is HELLA H7.
Dome Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS | 6411LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Longer Life | View on Amazon |
| SYLVANIA | 6411LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: 6411 | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | 6411LED65K | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDSocket Type Bulb: SV8.5-8 | View on Amazon |
| HELLA | 6411LED5K | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDSocket Type Bulb: SV8.5-8 | View on Amazon |
| PHILIPS | 6411WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDWhite | View on Amazon |
| SYLVANIA | 6411SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
| SYLVANIA | 6411LED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ZEVOCool White | View on Amazon |
| WAGNER | 6411WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED1.4 Watt | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | 6411 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: SV8.5-8 | View on Amazon |
| WAGNER Popular | 17314 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | SV8.5 Base10.000 Watt | View on Amazon |
| SYLVANIA | 6411 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the bulbs in the dome lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
11 Dome Light Bulb parts for the 2015 Audi S4 come from 4 brands — SYLVANIA, HELLA, PHILIPS and 1 other brand. The "Popular" part is HELLA 6411LED65K.
Extended Life: 2 parts, from PHILIPS and SYLVANIA. A representative part number is PHILIPS 6411LL.
The LED (instant-on, long life, energy-saving) section: 6 options from HELLA, SYLVANIA, PHILIPS and 1 other brand. HELLA 6411LED65K is listed in this group.
Standard Replacement: 3 parts, from HELLA, WAGNER and SYLVANIA. A representative part number is HELLA 6411.
Door Panel Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 2825LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
| WAGNER | 17177LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeW2.1x9.5d Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 2825ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | 921LED5K | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED Miniature Bulb with Color Temperature of 5000KSocket Type Bulb: SV8.5-8 | View on Amazon |
| SYLVANIA | 2825SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
| WAGNER | T10LED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Tru View PLUS LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
| WAGNER | 17177 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | W2.1x9.5d Base5.000 Watt | View on Amazon |
This table covers the replacement bulbs for the Door Panel Light. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
9 Door Panel Light Bulb parts are listed for the 2015 Audi S4, from SYLVANIA, WAGNER and HELLA. HELLA 921LED5K carries the "Popular" badge.
The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA 2825LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 2825ST is listed in this group.
LED (instant-on, long life, energy-saving): 3 parts, from HELLA, SYLVANIA and WAGNER. A representative part number is HELLA 921LED5K.
The Standard Replacement section: 3 options from HELLA, SYLVANIA and WAGNER. HELLA 2825 is listed in this group.
Part numbers include HELLA 921LED5K, SYLVANIA 2825LL and WAGNER 17177LL, among others listed above.
Fog / Driving Lamp Bulb
Blue-Coated (stylish, bright-white look)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | H71071372 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extreme WhiteHalogen | View on Amazon |
| HELLA | H71070772 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extreme WhiteHalogen | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | H8LEDSP | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular | H8 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| WAGNER Popular | 1235H8 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| HELLA | H8 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenSocket Type Bulb: PGJ19-1 | View on Amazon |
| SYLVANIA | H8 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: PGJ19-1Wattage: 35.00 W | View on Amazon |
This table covers the bulbs in the fog and driving lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
7 Fog / Driving Lamp Bulb parts are listed for the 2015 Audi S4, from HELLA, SYLVANIA, PHILIPS and 1 other brand. PHILIPS H8 carries the "Popular" badge.
The Blue-Coated (stylish, bright-white look) section lists 2 options from HELLA — grouped under the catalog's "Blue-Coated (stylish, bright-white look)" designation — the notes column spells out what sets them apart. HELLA H71071372 is listed in this group.
LED (instant-on, long life, energy-saving): 1 part, from SYLVANIA. A representative part number is SYLVANIA H8LEDSP.
The Standard Replacement section: 4 options from PHILIPS, WAGNER, HELLA and 1 other brand. PHILIPS H8 is listed in this group.
Listed part numbers: PHILIPS H8, HELLA H71071372 and HELLA H71070772, plus the other parts above.
Fog / Driving Lamp Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S2611 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalContact Terminal Material: Plastic | View on Amazon |
| WALKER PRODUCTS | 2701120 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Terminal Gender: Female | View on Amazon |
| WELLS | 1P3537 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Used with H11 BulbWiring Harness | View on Amazon |
This table covers the sockets that hold a Fog / Driving Lamp bulb. Typical signs include a flicker over bumps, melted plastic, or a bulb that will not stay seated. Dielectric grease on the contacts slows corrosion. Do not force a bulb into a heat-damaged socket.
3 Fog / Driving Lamp Socket parts are listed for the 2015 Audi S4, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and WELLS.
This group includes STANDARD MOTOR PRODUCTS S2611, WALKER PRODUCTS 2701120 and WELLS 1P3537.
Buying Electrical Bulb & Socket Parts for a 2015 Audi S4
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- Confirm you have the 3.0L V6 Supercharged 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, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Cornering Lamp Bulb and Dome Light Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2015 Audi S4?
Our catalog currently lists 58 electrical bulb & socket parts for the 2015 Audi S4 across 7 subcategories and 7 brands, covering the 3.0L V6 Supercharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical bulb & socket problems on a 2015 Audi S4?
Common symptoms include a lamp that flickers over bumps, melted or discolored socket plastic, or bulbs that keep failing early on one side. 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, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
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 S4 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 S4?
Every part on this page is matched to the 3.0L V6 Supercharged engine. Then repeated bulb failure in one position usually means a socket or ground problem, not bad bulbs — replace the socket rather than chase it. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2015 Audi S4
Electrical Bulb & Socket Parts for Other Audi S4 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.