This page lists 52 electrical bulb & socket parts for the 2018 Audi Q7, across 9 part types, covering all 3 engine options (2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged and 3.0L V6 Supercharged). Every part shows its brand, manufacturer part number and fitment notes.
On the 2018 Audi Q7, 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 (11 parts), Fog / Driving Lamp Bulb (9 parts) and Door Panel Light Bulb (8 parts). The other 6 part types cover the remaining 24 parts.
The 2018 Audi Q7 was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
7 brands supply electrical bulb & socket parts for the 2018 Audi Q7, led by SYLVANIA (23 parts), WAGNER (18 parts) and HELLA (5 parts), plus 4 more brands. Quality grades include Standard Replacement, Extended Life and Extra Bright.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2018 Audi Q7. 11 parts have it, including SYLVANIA 921LL (Back Up / Reverse Lamp Bulb) and SYLVANIA H7XV (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 Popular Fits: 3.0L V6 DIESEL Turbocharged | 921LL | 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | 921LL | 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | 921ST | 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | 921WLED | 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 3.0L V6 DIESEL Turbocharged | 921 | 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | 921 | 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 18.00 W | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | 921 | 🇲🇽 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.
7 Back Up / Reverse Lamp Bulb parts for the 2018 Audi Q7 come from 3 brands — SYLVANIA, WAGNER and HELLA. The "Popular" part is SYLVANIA 921LL.
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 1 option from WAGNER — grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. WAGNER 921WLED is listed in this group.
In the Standard Replacement grade, HELLA, SYLVANIA and WAGNER supply 3 parts: built to original-equipment specification. A representative part number is HELLA 921.
This group includes SYLVANIA 921LL and SYLVANIA 921ST and the remaining parts above.
Cornering Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | H7LL | 🇲🇽 MX | Long Life | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | 1255H7LL | 🇲🇽 MX | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 3.0L V6 DIESEL Turbocharged | H7XV | 🇲🇽 MX | Xtra VisionColor Temperature: 3200 KV | View on Amazon |
| WAGNER Popular Fits: 3.0L V6 DIESEL Turbocharged | H7BLX | 🇲🇽 MX | BritelitePX26D Base | View on Amazon |
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | H7ST | 🇲🇽 MX | Color Temperature: 4000 KVSilver Star | View on Amazon |
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | H7SU | 🇲🇽 MX | Silver Star UltraColor Temperature: 4100 KV | View on Amazon |
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | H7SZG | 🇲🇽 MX | Silver Star zXe GOLDColor Temperature: 4200 KV | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | H7TVX | 🇲🇽 MX | Truview PlusPX26D Base | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: 3.0L V6 DIESEL Turbocharged | 1255H7 | 🇲🇽 MX | Halogen Capsulewith HID Headlights | View on Amazon |
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | H7 | 🇲🇽 MX | Base Type: PX26DWattage: 55.00 W | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | 2475H7 | 🇲🇽 MX | with HID Headlights24 Volt | 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.
11 Cornering Lamp Bulb parts for the 2018 Audi Q7 come from 2 brands — SYLVANIA and WAGNER. The "Popular" part is SYLVANIA H7XV.
Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA H7LL.
Extra Bright (improved visibility, but shorter life): 6 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA H7XV.
Standard Replacement: 3 parts, from WAGNER and SYLVANIA. A representative part number is WAGNER 1255H7.
Door Panel Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 3.0L V6 DIESEL Turbocharged | 2825LL | 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | 17177LL | 🇲🇽 MX | Long LifeW2.1x9.5d Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | 2825ST | 🇲🇽 MX | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | 2825SL | 🇲🇽 MX | LEDCool White | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | T10LED | 🇲🇽 MX | Tru View PLUS LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 3.0L V6 DIESEL Turbocharged | 2825 | 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | 2825 | 🇲🇽 MX | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | 17177 | 🇲🇽 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.
8 Door Panel Light Bulb parts are listed for the 2018 Audi Q7, from SYLVANIA, WAGNER and HELLA. SYLVANIA 2825LL 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): 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 2825SL.
The Standard Replacement section: 3 options from HELLA, SYLVANIA and WAGNER. HELLA 2825 is listed in this group.
This group includes SYLVANIA 2825LL, WAGNER 17177LL and SYLVANIA 2825ST and the remaining parts above.
Fog / Driving Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 3.0L V6 DIESEL Turbocharged | 921LL | 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | 921LL | 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | 921ST | 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | 921SL | 🇲🇽 MX | Cool WhiteLED | View on Amazon |
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | 921LED | 🇲🇽 MX | Cool WhiteZEVO | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | 921WLED | 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 3.0L V6 DIESEL Turbocharged | 921 | 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | 921 | 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 18.00 W | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | 921 | 🇲🇽 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 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.
9 Fog / Driving Lamp Bulb parts are listed for the 2018 Audi Q7, from SYLVANIA, WAGNER and HELLA. SYLVANIA 921LL carries the "Popular" badge.
The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA 921LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 921ST is listed in this group.
LED (instant-on, long life, energy-saving): 3 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 921SL.
The Standard Replacement section: 3 options from HELLA, SYLVANIA and WAGNER. HELLA 921 is listed in this group.
This group includes SYLVANIA 921LL and SYLVANIA 921ST and the remaining parts above.
Headlamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | D5S | 🇲🇽 MX | High Beam and Low Beamwith HID Headlights | View on Amazon |
| ÜRO PARTS Fits: 3.0L V6 DIESEL Turbocharged | D5S | 🇲🇽 MX | High Beam and Low BeamXenon (12V - 25W) | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | D5S | 🇲🇽 MX | High Beam and Low BeamHid Type | 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 Q7, from SYLVANIA, ÜRO PARTS and WAGNER.
Part numbers include SYLVANIA D5S, among others listed above.
Headlamp Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.0L V6 DIESEL Turbocharged | HP4355 | 🇲🇽 MX | Handy PackBlack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 3.0L V6 DIESEL Turbocharged | S900 | 🇲🇽 MX | Connector Shape: Rectangleblack | View on Amazon |
| WELLS Fits: 3.0L V6 DIESEL Turbocharged | 1P1444 | 🇲🇽 MX | Terminal Gender: Female | 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 2018 Audi Q7, from STANDARD MOTOR PRODUCTS and WELLS.
Listed part numbers: STANDARD MOTOR PRODUCTS HP4355, STANDARD MOTOR PRODUCTS S900 and WELLS 1P1444.
Side Marker Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | 2821LL | 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | 17097LL | 🇲🇽 MX | Long LifeW2.1x9.5d Base | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 3.0L V6 DIESEL Turbocharged | 2821 | 🇲🇽 MX | HalogenSocket Type Bulb: W2.1x9.5d | View on Amazon |
| PHILIPS Popular Fits: 3.0L V6 DIESEL Turbocharged | 12256 | 🇲🇽 MX | Rear | View on Amazon |
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | 2821 | 🇲🇽 MX | Rear | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | 17097 | 🇲🇽 MX | W2.1x9.5d Base3.000 Watt | View on Amazon |
This table covers the bulbs in the side-marker 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.
6 Side Marker Light Bulb parts for the 2018 Audi Q7 come from 4 brands — SYLVANIA, WAGNER, HELLA and 1 other brand. The "Popular" part is HELLA 2821.
Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 2821LL.
Standard Replacement: 4 parts, from HELLA, PHILIPS, SYLVANIA and 1 other brand. A representative part number is HELLA 2821.
Part numbers include HELLA 2821, SYLVANIA 2821LL and WAGNER 17097LL, among others listed above.
Tail Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 3.0L V6 DIESEL Turbocharged | 2825 | 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | 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 2018 Audi Q7 — HELLA 2825.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | 64132LL | 🇲🇽 MX | Long Life | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: 3.0L V6 DIESEL Turbocharged | 12174NA | 🇲🇽 MX | Natural Amber | View on Amazon |
| SYLVANIA Fits: 3.0L V6 DIESEL Turbocharged | 64132 | 🇲🇽 MX | Frontwith HID Headlights | View on Amazon |
| WAGNER Fits: 3.0L V6 DIESEL Turbocharged | 68161 | 🇲🇽 MX | Frontwith HID Headlights | 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.
4 Turn Signal Lamp Bulb parts for the 2018 Audi Q7 come from 3 brands — SYLVANIA, PHILIPS and WAGNER.
Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 64132LL.
Standard Replacement: 3 parts, from PHILIPS, SYLVANIA and WAGNER. A representative part number is PHILIPS 12174NA.
Part numbers include SYLVANIA 64132LL, PHILIPS 12174NA and SYLVANIA 64132, among others listed above.
Buying Electrical Bulb & Socket Parts for a 2018 Audi Q7
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- Match the engine first. Every electrical bulb & socket part here is engine-specific; each row shows which engine(s) it fits.
- 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 Fog / Driving Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2018 Audi Q7?
Our catalog currently lists 52 electrical bulb & socket parts for the 2018 Audi Q7 across 9 subcategories and 7 brands, covering all 3 engine options (2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged and 3.0L V6 Supercharged). Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2018 Audi Q7 engines?
Yes. Every electrical bulb & socket part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical bulb & socket problems on a 2018 Audi Q7?
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 Q7 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 Q7?
First match the engine — each row shows which engine(s) the part fits. 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 Q7
Electrical Bulb & Socket Parts for Other Audi Q7 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.