2004 BMW 525 Bulb Size

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Bulbs Chart

Headlight Bulb High Beam - H7

Headlight Bulb Low Beam(with halogen headlights) - H7

Headlight Bulb Low Beam(with HID headlights) - D2S

Parking Light Bulb - 2825

Back Up Reverse Light Bulb - 921

Side Marker Light Bulb Front - 2825


2004 BMW 525 Headlight Bulb High Beam (H7)

    Halogen Lights

  • Best Choice for 2004 BMW 525

    SYLVANIA H7 SilverStar Ultra

    - Cobalt blue coating provides optimal light transmission and color; - Crisp, white light with the look, feel, and attitude of high-intensity discharge. - These bulbs are DOT-compliant and 100 percent street legal. Whiter light for added clarity gives you brighter headlights, for more downroad.  
  • Premium Pick

    Philips H7 X-tremeVision Up

    Excellent for nighttime drivers -  get up to 100% more vision on the road compared to standard minimum legal requirements in low beam headlamp test results. Original equipment quality seal Maximum light output and ultimate performance
  • Best Value

    PIAA Xtreme White Plus High Performance

    Made from high-quality quartz glass and alloy filaments. The Xtreme White Hybrid bulbs are constructed for long-lasting performance. The alloy filaments are far better at dispersing heat than regular metals. Meaning these bulbs will perform at a higher output for longer amounts of time. Direct replacements for your vehicle's stock bulbs.

See more H7 Halogen Lights

    Xenon HID Conversion Kit

  • Best Overall

    Morimoto Elite HID Kit System

    - Genuine Morimoto Elite HID System - Heavy Duty Double Relay Harness - Pair of High-Quality Morimoto Bulbs

See more H7 Xenon HID Conversion Kit

2004 BMW 525 Headlight Bulb Low Beam(with halogen headlights) (H7)

    Halogen Lights

  • Best Choice for 2004 BMW 525

    SYLVANIA H7 SilverStar Ultra

    - Cobalt blue coating provides optimal light transmission and color; - Crisp, white light with the look, feel, and attitude of high-intensity discharge. - These bulbs are DOT-compliant and 100 percent street legal. Whiter light for added clarity gives you brighter headlights, for more downroad.  
  • Premium Pick

    Philips H7 X-tremeVision Up

    Excellent for nighttime drivers -  get up to 100% more vision on the road compared to standard minimum legal requirements in low beam headlamp test results. Original equipment quality seal Maximum light output and ultimate performance
  • Best Value

    PIAA Xtreme White Plus High Performance

    Made from high-quality quartz glass and alloy filaments. The Xtreme White Hybrid bulbs are constructed for long-lasting performance. The alloy filaments are far better at dispersing heat than regular metals. Meaning these bulbs will perform at a higher output for longer amounts of time. Direct replacements for your vehicle's stock bulbs.

See more H7 Halogen Lights

    Xenon HID Conversion Kit

  • Best Overall

    Morimoto Elite HID Kit System

    - Genuine Morimoto Elite HID System - Heavy Duty Double Relay Harness - Pair of High-Quality Morimoto Bulbs

See more H7 Xenon HID Conversion Kit

2004 BMW 525 Headlight Bulb Low Beam(with HID headlights) (D2S)

    Xenon HID Conversion Kit

  • Best Choice for 2004 BMW 525

    Philips D2S Standard Authentic Xenon

    Check out these xenon lighting solutions, the number one choice in authentic Xenon lighting. Philips Xenon HID headlight bulbs provide the same Original Equipment quality as the lights we provide to automakers around the world. Only a burning bulb made of quartz glass (filament 2650°c, glass 800°c) can resist thermal

See more D2S Xenon HID Conversion Kit

2004 BMW 525 Parking Light Bulb (2825)

    Halogen Lights

  • Premium Pick

    Sylvania White Mini Bulb

    SYLVANIA LED bulbs deliver a balanced combination of performance and value. Tuners and auto enthusiasts alike can replace their vehicle’s incandescent lights with a bright and long-lasting LED bulb for a unique and modern look simply and cost-effectively. 

See more 2825 Halogen Lights

    LED Lights

  • For Car Dome, Map Door, Courtesy, License Plate Lights

    Marsauto LED Light Bulb 6000K Replacement Bulbs

    – Better beam pattern: each bulb has 5 pcs high power SMD led, color temperature: 6000K(xenon white), voltage: 12V – No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes.  Products with electrical plugs

See more 2825 LED Lights

2004 BMW 525 Back Up Reverse Light Bulb (921)

    Halogen Lights

  • Best Choice

    Philips 12789LPB2 Bright White Vision

    Replace your standard car lights with our robust Philips Vision LEDs that deliver dynamic lighting for your vehicle, both inside and out. The innovative design and unmatched performance of Philips Vision LEDs are available for brake and taillights, backup lights, dome lights, and license plate lights. These bulbs are covered

See more 921 Halogen Lights

2004 BMW 525 Side Marker Light Bulb Front (2825)

    Halogen Lights

  • Premium Pick

    Sylvania White Mini Bulb

    SYLVANIA LED bulbs deliver a balanced combination of performance and value. Tuners and auto enthusiasts alike can replace their vehicle’s incandescent lights with a bright and long-lasting LED bulb for a unique and modern look simply and cost-effectively. 

See more 2825 Halogen Lights

    LED Lights

  • For Car Dome, Map Door, Courtesy, License Plate Lights

    Marsauto LED Light Bulb 6000K Replacement Bulbs

    – Better beam pattern: each bulb has 5 pcs high power SMD led, color temperature: 6000K(xenon white), voltage: 12V – No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes.  Products with electrical plugs

See more 2825 LED Lights

BMW 525 Bulb Size By Years

This bulb size chart lists the common lamp types and positions for a 2004 BMW 525i, so you can match bulbs without guessing. It exists to reduce trips to the store and mismatched purchases, and to highlight oddities that may surprise you. In some cases your car may have different options — xenon headlamps, US vs EU trim, or optional fog lights — that change the listed sizes. You can detect these edge cases by checking the owner’s manual, opening the lamp housing, or noting symptoms like flicker or poor beam pattern. Mitigation steps include confirming part numbers and choosing a safe default equivalent if unsure. I may earn a small commission from links on this page; it doesn’t change the price you pay. Use that as a convenience, not a substitute for verification.

2004 BMW 525 specs
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