The 2013 BMW 328i most often uses D3S xenon bulbs for its main headlights if the car is equipped with xenon headlights; if your car has halogen headlights, expect H7 for low beams and H1 for high beams. Fog lights typically use H8 or H11 bulbs depending on market, while interior cabin lights use standard wedge bulbs such as W5W (194). LED headlights, if equipped, are not replaceable by simple bulb swaps. Always verify the exact bulb type for your specific car configuration.
Headlights: Xenon vs Halogen
The headlight configuration in a 2013 328i determines the exact bulb types you’ll need. The most common setups are summarized here.
- Xenon/HID headlights: D3S bulbs (one per headlight, used with a ballast) for low/high beam functionality
- Halogen headlights: H7 bulbs for low beam and H1 bulbs for high beam
These configurations cover the typical US-market trims from that year. If your car has full LED headlights, there are no replaceable bulbs for the main headlight unit; service is handled differently.
Fog lights and auxiliary lighting
Fog lights and other exterior lighting on the 2013 328i can vary by market and option package. The common configurations are:
- Fog lights: H8 or H11 bulbs depending on trim and region
- Daytime running lights: generally integrated into the headlight assembly (LED or xenon setups) and not a separate replaceable bulb
Because fog light bulb type can differ by country and option level, confirm the exact bulb size by checking the owner’s manual or inspecting the fog light housing.
Interior and other cabin bulbs
Inside the vehicle, the bulbs for courtesy lights, map lights, and other cabin illumination typically use standard wedge-type bulbs. Common sizes include:
- Interior/map lights: W5W (also known as 194) wedge bulbs
- License plate lights: W5W/T10 variants depending on market
- Trunk/cargo area lights: W5W or similar wedge-style bulbs
When replacing interior bulbs, handle bulbs carefully and avoid touching the glass with bare fingers to extend life and prevent bulb failure.
How to identify the exact bulb for your car
Since equipment and options differ by market and trim level, follow these steps to confirm the precise bulb types for your vehicle:
- Check the owner’s manual bulb specification page for your exact trim and market
- Remove a representative bulb from its housing to read the base type printed on the base
- Use your VIN to pull up the exact equipment list from BMW’s documentation or a trusted parts retailer
- When ordering, match both the base type and wattage, and consider the replacement guidelines for HID vs halogen systems
If you’re unsure, contact a BMW dealer or licensed technician who can confirm the correct bulb sizes for your specific configuration.
Summary: For a 2013 BMW 328i, the main headlights are typically D3S xenon bulbs if xenon headlights are installed; halogen headlights use H7 (low beam) and H1 (high beam). Fog lights commonly use H8 or H11, while interior cabin lights use wedge bulbs like W5W/194. Always verify with your owner’s manual or a VIN-based parts diagram, as configurations vary by market and option package.