What is the low beam headlight bulb size for a 2014 BMW 335i GT xDrive?

The 2014 BMW 335i GT xDrive uses a H7 bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2014 BMW 335i GT xDrive?

The high beam bulb size for the 2014 BMW 335i GT xDrive is H7.

Why are my 2014 BMW 335i GT xDrive headlights dim?

Dim headlights on a 2014 BMW 335i GT xDrive can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a H7 LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2014 BMW 335i GT xDrive fog light?

The 2014 BMW 335i GT xDrive uses a H8 bulb for the fog light position.

Is the 2014 BMW 335i GT xDrive single or dual beam?

The 2014 BMW 335i GT xDrive uses a single bulb (dual filament) headlight system. This means one bulb controls both high and low beams.

Can I install LED bulbs on my 2014 BMW 335i GT xDrive?

Yes, the 2014 BMW 335i GT xDrive comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a H7 LED conversion kit for the low beams.

Does the 2014 BMW 335i GT xDrive have fog lights?

Yes, the 2014 BMW 335i GT xDrive takes a H8 bulb for the fog light position.

How do I change the headlight on a 2014 BMW 335i GT xDrive?

Turn off the vehicle and open the hood. Locate the headlight assembly from behind, remove the dust cover or retaining clip, disconnect the wiring harness, twist the old H7 bulb counter-clockwise to remove it, then insert the new bulb and reassemble. Note: BMW vehicles use a CANbus system, so LED replacements may need an anti-flicker decoder. The whole process typically takes 10 to 30 minutes per side depending on accessibility.

Are LED headlights legal for a 2014 BMW 335i GT xDrive?

LED bulbs used off-road or in auxiliary lights are legal everywhere. For on-road headlight use, legality varies by state. Many states allow LED retrofits as long as the beam pattern meets DOT standards. For the best legal compliance, choose a DOT-approved H7 LED kit that is designed as a direct replacement and produces a proper cutoff pattern without excessive glare.

How much does it cost to replace 2014 BMW 335i GT xDrive headlights?

A pair of halogen H7 bulbs costs $15 to $40, while LED conversion kits run $25 to $60 per pair. If you have a shop do the work, expect an additional $20 to $50 in labor per bulb. Replacing them yourself at home saves the labor cost and usually takes under 30 minutes.

What is the difference between halogen and LED for a 2014 BMW 335i GT xDrive?

Halogen bulbs produce a warm yellow light (around 3200K), last 500 to 1000 hours, and draw more power. LED bulbs emit a brighter white light (5000-6000K), last 25,000+ hours, and use less energy. LED upgrades for the H7 position are available as direct plug-and-play replacements. Since the BMW uses CANbus monitoring, choose a CANbus-compatible LED kit to avoid dashboard errors.

The 2014 BMW 335i GT xDrive is the first model year to use this bulb configuration (2014–2015).

Fitment Guaranteed for 2014 BMW 335i GT xDrive

What Size Bulbs Does a 2014 BMW 335i GT xDrive Use?

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Installation Difficulty

Hard (Tight clearances)

Est. Replacement Cost

$15 - $40 (Halogen) / $30+ (LED)

What Lighting System Does the 2014 BMW 335i GT xDrive Have?

Lighting on the 2014 BMW 335i GT xDrive is managed by a total of 5 bulbs, covering everything from primary headlights to signal indicators. It features a standard lighting system powered by a halogen-based setup where a single H7 dual-filament bulb handles both low and high beam duties within the same reflector. Note that BMW vehicles typically feature a CANbus electrical monitor that checks for specific bulb resistance.

LED Flicker Warning

This vehicle is known to use a CANbus system. Installing standard LEDs may cause flickering.

Use a CANbus decoder.

Can You Put LED Bulbs in a 2014 BMW 335i GT xDrive?

Upgrading to LED is one of the most effective ways to modernize your BMW's appearance and safety profile. Since your 335i GT xDrive uses a single H7 bulb for both high and low beams, ensure your chosen LED kit is "dual-beam" compatible. This allows the LED circuitry to mimic the two-filament design of the original halogen bulb. Because BMW utilizes a CANbus system, standard LED bulbs may cause "bulb out" errors on your dashboard. Always opt for "Error-Free" or CANbus-ready kits which include the necessary resistors. Don't forget the H8 fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

2014 BMW 335i GT xDrive Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	H7	Buy H7 →
Fog Light	H8	Buy H8 →
High Beam	H7	Buy H7 →
Dome Light	W5W	Buy W5W →
Door Light	W5W	Buy W5W →

How do the 2014 BMW 335i GT xDrive's bulbs compare to other years?

The 2015 model continues with the same bulb sizes.

This bulb configuration covers the 2014–2015 model years. 2015 →

Finding the best installation guide...

Other 335i GT xDrive Years

2016 2015

Other Vehicles That Use H7 Bulbs

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H7 Comparisons

9005 vs H7 H1 vs H7 H11 vs H7 H4 vs H7