24 Electrical bulb & socket parts are listed for the 2018 Audi S5, in 12 part types, covering both the 3.0L V6 Supercharged and the 3.0L V6 Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2018 Audi S5, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. 11 parts of the 24 listed are Glove Box Light Bulb (5 parts), Dome Light Bulb (3 parts) and Headlamp Bulb (3 parts). The other 9 part types cover the remaining 13 parts.
The 2018 Audi S5 was sold with both the 3.0L V6 Supercharged and the 3.0L V6 Turbocharged. All 24 parts on this page fit every engine.
5 brands supply electrical bulb & socket parts for the 2018 Audi S5, led by HELLA (10 parts), PHILIPS (6 parts) and WAGNER (4 parts), plus 2 more brands. Quality grades include Standard Replacement, Extended Life and HID.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2018 Audi S5. 1 part has it: PHILIPS 12256 (Glove Box Light Bulb). Each part number opens a page with every vehicle that part fits.
Back Up / Reverse Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2018 S5 engines | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | 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.
This group shows a single part: HELLA 921.
Dome Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2018 S5 engines | 6411LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Longer Life | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2018 S5 engines | 6411WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2018 S5 engines | 6411 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: SV8.5-8 | 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.
3 Dome Light Bulb parts for the 2018 Audi S5 come from 2 brands — PHILIPS and HELLA. Every part fits both the 3.0L V6 Supercharged and the 3.0L V6 Turbocharged.
In the Extended Life grade, PHILIPS supplies 1 part: grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. A representative part number is PHILIPS 6411LL.
The LED (instant-on, long life, energy-saving) section lists 1 option from PHILIPS — grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. PHILIPS 6411WLED is listed in this group.
In the Standard Replacement grade, HELLA supplies 1 part: built to original-equipment specification. A representative part number is HELLA 6411.
This group includes PHILIPS 6411LL, PHILIPS 6411WLED and HELLA 6411.
Door Panel Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2018 S5 engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA Fits: all 2018 S5 engines | 2825BL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | 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.
HELLA supplies both parts for the 2018 Audi S5. All of them fit every engine offered in the 2018 S5.
This group includes HELLA 2825 and HELLA 2825BL.
Fog / Driving Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2018 S5 engines | H8 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenSocket Type Bulb: PGJ19-1 | View on Amazon |
| PHILIPS Fits: all 2018 S5 engines | H8 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | 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.
2 Fog / Driving Lamp Bulb parts are listed for the 2018 Audi S5, from HELLA and PHILIPS. All of them fit every engine offered in the 2018 S5.
Part numbers include HELLA H8, among others listed above.
Glove Box Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2018 S5 engines | 2821LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
| WAGNER Fits: all 2018 S5 engines | 17097LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeW2.1x9.5d Base | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: all 2018 S5 engines | 12256 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits S5 Base Modelor S5 Sportback | View on Amazon |
| SYLVANIA Fits: all 2018 S5 engines | 2821 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WAGNER Fits: all 2018 S5 engines | 17097 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | W2.1x9.5d Base3.000 Watt | 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.
5 Glove Box Light Bulb parts are listed for the 2018 Audi S5, from SYLVANIA, WAGNER and PHILIPS. PHILIPS 12256 carries the "Popular" badge. All of them fit every engine offered in the 2018 S5.
The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA 2821LL is listed in this group.
The Standard Replacement section: 3 options from PHILIPS, SYLVANIA and WAGNER. PHILIPS 12256 is listed in this group.
Part numbers include PHILIPS 12256, SYLVANIA 2821LL and WAGNER 17097LL, among others listed above.
Headlamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2018 S5 engines | D3S4300K | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4300KSocket Type Bulb: PK32D-5 | View on Amazon |
| ÜRO PARTS Fits: all 2018 S5 engines | D5S | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Xenon (12V - 25W) | View on Amazon |
| WAGNER Fits: all 2018 S5 engines | D3S | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Xenon Gas | 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.
3 Headlamp Bulb parts are listed for the 2018 Audi S5, from HELLA, ÜRO PARTS and WAGNER. All of them fit every engine offered in the 2018 S5.
Listed part numbers: HELLA D3S4300K, ÜRO PARTS D5S and WAGNER D3S.
Headlamp Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS Fits: all 2018 S5 engines | 6R0973735 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 10 pin black connector | 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.
One part is listed for the 2018 Audi S5 — ÜRO PARTS 6R0973735.
Map / Reading Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2018 S5 engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
This table covers the bulbs in the map / reading 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: HELLA 2825.
Tail Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2018 S5 engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA Fits: all 2018 S5 engines | 6411 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: SV8.5-8 | 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.
HELLA supplies both parts for the 2018 Audi S5. All of them fit every engine offered in the 2018 S5.
This group includes HELLA 2825 and HELLA 6411.
Trunk / Cargo Area Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2018 S5 engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
This table covers the bulbs in the trunk or cargo-area 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.
One part is listed for the 2018 Audi S5 — HELLA 2825.
Turn Signal Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2018 S5 engines | 12174NA | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
This group shows a single part: PHILIPS 12174NA.
Vanity Mirror / Sun Visor Light Bulb
HID (intense white light)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2018 S5 engines | DE3423LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Longer Life | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2018 S5 engines | 17136 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Medium Standard Miniature Lamp | View on Amazon |
This table covers the replacement bulbs for the Vanity Mirror / Sun Visor 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.
2 Vanity Mirror / Sun Visor Light Bulb parts are listed for the 2018 Audi S5, from PHILIPS and WAGNER. All of them fit every engine offered in the 2018 S5.
The HID (intense white light) section lists 1 option from PHILIPS — grouped under the catalog's "HID (intense white light)" designation — the notes column spells out what sets them apart. PHILIPS DE3423LL is listed in this group.
The Standard Replacement section: 1 option from WAGNER. WAGNER 17136 is listed in this group.
This group includes PHILIPS DE3423LL and WAGNER 17136.
Buying Electrical Bulb & Socket Parts for a 2018 Audi S5
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- You do not need to pick an engine: every electrical bulb & socket part on this page fits both the 3.0L V6 Supercharged and the 3.0L V6 Turbocharged.
- 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: Glove Box Light Bulb and Dome Light Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2018 Audi S5?
Our catalog currently lists 24 electrical bulb & socket parts for the 2018 Audi S5 across 12 subcategories and 5 brands, covering both the 3.0L V6 Supercharged and the 3.0L V6 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2018 Audi S5 engines?
No. On this page every electrical bulb & socket part fits both the 3.0L V6 Supercharged and the 3.0L V6 Turbocharged. You do not need to pick an engine to choose the right row — use the notes for position and trim.
What are the signs of electrical bulb & socket problems on a 2018 Audi S5?
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 2018 Audi S5 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 2018 Audi S5?
Every part on this page already fits both the 3.0L V6 Supercharged and the 3.0L V6 Turbocharged. 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 2018 Audi S5
Electrical Bulb & Socket Parts for Other Audi S5 Years
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