The 2014 Mazda3 uses two headlight configurations depending on trim and market: base models with halogen headlights and higher trims with xenon HID headlights. Other exterior and interior bulbs follow standard Mazda sizes, but exact numbers can vary by market and trim; check the owner's manual or the bulb label in your socket to be sure.
Headlights by configuration
In halogen-equipped cars, the system uses standard halogen bulbs for low and high beams and for fogs. In HID-equipped cars, the low beams are xenon with ballast, and high-beam function is typically handled within the same Bi-Xenon system. Fog lights and other lights use conventional bulbs where fitted.
- Halogen low-beam headlight: H11
- Halogen high-beam headlight: 9005 (HB3)
- Front fog lights (halogen models): H11
- Front turn signals: 7440
- Rear taillights/brake lights: 3157 or 7443 (depends on region and trim)
- Reverse lights: 921
Halogen-equipped models generally follow these sizes; verify with your manual for your exact VIN/trim configuration.
HID/xenon configuration
For models with HID headlights, the primary bulb type is xenon for the low beams and is paired with a ballast. The high-beam function on many HID setups is integrated (Bi-Xenon), rather than a separate bulb. Fog lights, if present, typically use a standard halogen bulb such as H11, depending on the market.
- Low-beam headlight: D3S (typical; some markets may use D1S/D2S)
- High-beam: Bi-Xenon function (often no separate bulb) or a market-specific arrangement
- Front fog light: H11 (where equipped; some markets differ)
- Front turn signals: 7440
- Rear lights (taillights/brake lights): 3157 or 7443
If your Mazda3 has HID headlights, confirm the exact xenon bulb type (D3S vs D1S/D2S) from the owner’s manual or the headlight assembly label, since configurations vary by market.
Other exterior and interior bulbs
Beyond the headlights, most 2014 Mazda3 models use common bulbs for signaling, tail lights, license plate illumination, and interior lighting. Sizes vary by market and trim, but the following are frequently used on US/European-spec cars:
- Front turn signal: 7440
- Rear turn signal: 7440
- Tail/brake lights: 3157 or 3156 (red); some regions use 7443
- Reverse light: 921
- License plate light: W5W (also listed as 194 in some catalogs)
- Interior dome/map lights: Wedge bulbs such as 194
Conclusion: Always verify using your manual or the label on the bulb socket, since variations exist by trim and market.
Tips for replacing bulbs
Replacing bulbs on a 2014 Mazda3 is straightforward, but can differ by trim and whether you have HID or halogen. Here are practical tips to avoid mistakes:
- Consult the owner's manual or a parts catalog for your exact trim and market.
- Inspect the bulb label on the socket to confirm the exact size before buying replacements.
- When handling HID bulbs, avoid touching the glass with bare fingers and consider replacing bulbs in pairs when upgrading.
- Halogen bulbs are generally easier to replace yourself; HID systems may require professional service for ballast-related work.
Conclusion: With the right identification, bulb replacements become quick and safe.
Summary
The 2014 Mazda3 can use halogen or xenon HID headlight bulbs depending on trim and market. Halogen configurations commonly use H11 for low beams, 9005 for high beams, and H11 for fogs, with 7440 for turn signals and 3157/7443 for taillights. HID configurations typically use D3S (or D1S/D2S in some regions) for low beams and Bi-Xenon operation for high beams, with similar sizes for turn signals and taillights. Interior and license-plate lights usually rely on standard wedge bulbs such as 194/W5W. For the exact numbers, consult your owner’s manual or the bulb label on your vehicle, or tell me your market and trim and I’ll provide the precise parts list.
What light bulbs does the Mazda 3 use?
Mazda 3 Sedan (2010-2013) Bulb Size Chart
| Headlights (High Beam and Low Beam) (w/ Halogen Capsule Headlamps) | 9005 (HB3) |
|---|---|
| Headlight (High Beam) | 9005 (HB3) |
| Headlight (Low Beam) | H11 (H8 H9) |
| Front Fog Lights | H11 (H8 H9) OR 9006 (HB4) |
| Reverse Light (Back-Up Light) | 7443 (7440) |
How to change light bulb on Mazda 3 2014?
Press down and get the connector. Out now grab the bulb. And then put one finger right where I'm putting and from the bottom there and then twist it left to loosen it then get the bulb. Out.
What vehicles use a D3S headlight bulb?
🚘 Vehicles That Commonly Use D3S Bulbs
- Audi (A4, A6, Q5, Q7, etc.)
- BMW models with factory HID headlights.
- Mercedes-Benz (C-Class, E-Class, and more)
- Lexus (select HID-equipped models)
- Volvo HID headlight systems.
- Porsche (Cayenne, Macan, 911)
- Land Rover / Range Rover.
- Jaguar (XF, F-Pace)
Is H11 the same as 9140?
They are identified and referenced using a part number (bulb size or bulb number). You may have heard of popular bulb sizes like H11, 9005, or H13. For example, H11 is the same as H8 and H9. 9005 is equivalent to HB3, H10, 9040, 9055, 9140, 9145, 9150, and 9155.