The 2019 Audi S4 has 20 electrical bulb & socket parts with verified fitment on this page — 8 part types and 7 brands, covering the 3.0L V6 Turbocharged engine. Each part includes a manufacturer part number and application notes.
The bulb and socket system on the 2019 Audi S4 covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. The largest groups are Cornering Lamp Bulb (4 parts), Glove Box Light Bulb (4 parts) and Headlamp Bulb (4 parts). The other 5 part types cover the remaining 8 parts.
The 2019 Audi S4 came with a single engine, the 3.0L V6 Turbocharged, and every part is verified against it.
7 brands supply electrical bulb & socket parts for the 2019 Audi S4, led by PHILIPS (8 parts), SYLVANIA (6 parts) and STANDARD MOTOR PRODUCTS (2 parts), plus 4 more brands. Quality grades include Standard Replacement, HID and Extended Life.
Each part number listed for the 2019 Audi S4 opens a page with every vehicle that part fits.
Brake Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS | 1156RLED | 🇺🇸 US 🇨🇦 CA | 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
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS | H8 | 🇺🇸 US 🇨🇦 CA | with HID headlamps | View on Amazon |
| SYLVANIA | H8 | 🇺🇸 US 🇨🇦 CA | Base Type: PGJ19-1Wattage: 35.00 W | View on Amazon |
| SYLVANIA | H8FV | 🇺🇸 US 🇨🇦 CA | Fog Vision | View on Amazon |
| SYLVANIA | H8SZ | 🇺🇸 US 🇨🇦 CA | Silver Star zXeBlue | 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.
4 Cornering Lamp Bulb parts for the 2019 Audi S4 come from 2 brands — SYLVANIA and PHILIPS.
Listed part numbers: PHILIPS H8 and SYLVANIA H8FV, plus the other parts above.
Fog / Driving Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS | H21W | 🇺🇸 US 🇨🇦 CA | RearHalogen: Inner | 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.
One part is listed for the 2019 Audi S4 — PHILIPS H21W.
Glove Box Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 2821LL | 🇺🇸 US 🇨🇦 CA | Long LifeBase Type: W2.1x9.5d | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 2821 | 🇺🇸 US 🇨🇦 CA | HalogenSocket Type Bulb: W2.1x9.5d | View on Amazon |
| PHILIPS | 12256 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SYLVANIA | 2821 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the bulbs in the glove-box 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.
4 Glove Box Light Bulb parts are listed for the 2019 Audi S4, from SYLVANIA, HELLA and PHILIPS.
The Extended Life section lists 1 option from SYLVANIA — grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. SYLVANIA 2821LL is listed in this group.
The Standard Replacement section lists 3 options from HELLA, PHILIPS and SYLVANIA — built to original-equipment specification. HELLA 2821 is listed in this group.
This group includes SYLVANIA 2821LL, HELLA 2821 and PHILIPS 12256 and the remaining parts above.
Headlamp Bulb
HID (intense white light)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | D5S | 🇺🇸 US 🇨🇦 CA | High Beam and Low Beamwith HID Headlights | View on Amazon |
| ÜRO PARTS | D5S | 🇺🇸 US 🇨🇦 CA | Xenon (12V - 25W) | View on Amazon |
| WAGNER | D5S | 🇺🇸 US 🇨🇦 CA | High Beam and Low BeamHid Type | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS | H8 | 🇺🇸 US 🇨🇦 CA | High Beam | View on Amazon |
This table covers the bulbs that light the headlamps. Typical signs include a dark lamp, a flicker over bumps, or a bulb that keeps failing on one side. Avoid touching a halogen capsule. Repeated failure in one socket is usually the socket or ground, not the bulb.
4 Headlamp Bulb parts are listed for the 2019 Audi S4, from SYLVANIA, ÜRO PARTS, WAGNER and 1 other brand.
The HID (intense white light) section lists 3 options from SYLVANIA, ÜRO PARTS and WAGNER — grouped under the catalog's "HID (intense white light)" designation — the notes column spells out what sets them apart. SYLVANIA D5S is listed in this group.
The Standard Replacement section: 1 option from PHILIPS. PHILIPS H8 is listed in this group.
This group includes SYLVANIA D5S and the remaining parts above.
Headlamp Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | PT2298 | 🇺🇸 US 🇨🇦 CA | GoldHeight (In): 1.5 in | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP3835 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Oval | View on Amazon |
| STANDARD MOTOR PRODUCTS | S553 | 🇺🇸 US 🇨🇦 CA | Connector Shape: OvalContact Terminal Material: Metal | View on Amazon |
This table covers the sockets that hold a headlamp bulb in the housing. 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 Headlamp Socket parts are listed for the 2019 Audi S4, from STANDARD MOTOR PRODUCTS and ACDELCO.
Part numbers include ACDELCO PT2298, STANDARD MOTOR PRODUCTS HP3835 and STANDARD MOTOR PRODUCTS S553.
Tail Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS | 1156RLED | 🇺🇸 US 🇨🇦 CA | VisionLED | View on Amazon |
This table covers the bulbs in the tail 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.
One part is listed for the 2019 Audi S4 — PHILIPS 1156RLED.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS | PY21WLL | 🇺🇸 US 🇨🇦 CA | Longer LifeNatural Amber | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS | 12174NA | 🇺🇸 US 🇨🇦 CA | Natural Amber | View on Amazon |
This table covers the bulbs in the turn-signal 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.
2 Turn Signal Lamp Bulb parts for the 2019 Audi S4 come from PHILIPS.
Extended Life: 1 part, from PHILIPS. A representative part number is PHILIPS PY21WLL.
Standard Replacement: 1 part, from PHILIPS. A representative part number is PHILIPS 12174NA.
Part numbers include PHILIPS PY21WLL and PHILIPS 12174NA.
Buying Electrical Bulb & Socket Parts for a 2019 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 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, 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 Glove Box Light Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2019 Audi S4?
Our catalog currently lists 20 electrical bulb & socket parts for the 2019 Audi S4 across 8 subcategories and 7 brands, covering the 3.0L V6 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical bulb & socket problems on a 2019 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 2019 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 2019 Audi S4?
Every part on this page is matched to the 3.0L V6 Turbocharged 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 2019 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.