Peugeot 308 Headlight Bulb Replacement

Driving at night with tired, yellow eyes is like trying to read a book through fogged glasses. We’ve all been there—one headlight of the Peugeot 308 winks out, and suddenly the road feels narrower, lonelier, and a little more dangerous. Together we’re going to walk through everything about Peugeot 308 headlight bulb replacement: the types of bulbs, the tools, the step-by-step process, and the small tricks that make the job feel less like surgery and more like changing a light at home.

Why Headlight Health Matters More Than We Think

Headlights are not just accessories; they’re our car’s voice in the dark. On the Peugeot 308, crisp lighting improves visibility, protects other drivers from glare, and keeps us legal on the road. A weak bulb can reduce reaction time just like a rainy windshield slows a wiper.

• Better visibility in poor weather
• Clearer recognition by other road users
• Passing MOT and road inspections
• Reduced strain on the electrical system

Replacing a bulb early is cheaper than replacing a full headlight unit later.

Getting to Know the Peugeot 308 Lighting System

Halogen vs Xenon vs LED

The 308 has worn different lighting “outfits” across its generations.

• Halogen bulbs – most common, affordable, warm yellow tone
• Xenon/HID – brighter, bluish light, require ballast
• LED units – modern, long-life but usually non-replaceable modules

Knowing which system lives in your car is the first key to the right replacement.

Common Bulb Types on the 308

• Dipped beam: H7 (most models)
• Main beam: H1 or H7 depending on year
• Indicators: PY21W
• Side lights: W5W

Always confirm with the owner’s manual or the label inside the headlight cover.

Tools We’ll Need Before We Start

We don’t need a full mechanic’s workshop—just a small survival kit:

• Clean gloves or tissue
• Flat screwdriver
• Torx set (on some trims)
• Flashlight
• Replacement bulb matching your type

Think of these tools as the ingredients before cooking dinner.

Safety First – A Few Golden Rules

Touching a halogen bulb with bare fingers is like leaving fingerprints on a camera lens—heat will create dark spots and shorten its life.

• Switch off ignition and lights
• Let the unit cool for 10 minutes
• Avoid touching glass of new bulb
• Disconnect battery if working near wiring

Step-by-Step: Peugeot 308 Headlight Bulb Replacement

1. Open the Bonnet Like a Pro

Pull the interior release, lift the hood, and secure it with the stay. The back of the headlight sits just behind the slam panel.

2. Locate the Access Cover

Each headlight has a round or oval plastic cap. Twist it counter-clockwise. It’s like opening a jam jar—firm but gentle.

3. Identify the Dipped Beam Holder

Inside you’ll see a metal clip or plastic holder. Take a breath; it looks more complex than it is.

4. Release the Retaining Clip

Press the clip inward and sideways. Imagine unbuttoning a tight collar.

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5. Remove the Old Bulb

Pull straight back, not sideways. Disconnect the two-pin plug.

6. Fit the New Bulb

Insert the bulb in the same orientation. The notches guide you like a key in a lock.

7. Refit the Clip and Cover

Reverse the process. Test the light before closing the bonnet.

Passenger Side vs Driver Side Differences

On some 308 engines, the battery or airbox crowds the space.

• Passenger side: usually easier
• Driver side: may require removing the filler neck or air duct

If space is tight, a long-nose plier becomes your best friend.

How Long Does the Job Take?

For first timers: 20–30 minutes
For seasoned hands: 10 minutes

It’s faster than brewing a proper cup of coffee.

Choosing the Best Replacement Bulb

Standard vs Performance Bulbs

• Long-life: last longer, slightly dimmer
• +130% brightness: whiter, shorter life
• All-weather: yellow tint for rain

We recommend balancing brightness with lifespan.

Trusted Brands

• Philips
• Osram
• Bosch

Cheap no-name bulbs often fade like summer memories.

Avoiding Common Mistakes

• Installing bulb upside down
• Forgetting to secure the clip
• Leaving the cover loose (moisture enters)
• Mixing different color temperatures

A mismatched pair looks like wearing two different shoes.

When the Bulb Isn’t the Real Problem

If the new bulb doesn’t light:

• Check fuse box
• Inspect connector for corrosion
• Look for ballast issues on Xenon
• Examine earth point

Sometimes the bulb is innocent.

Peugeot 308 Generations – Small Variations

308 T7 (2007–2013)

Classic halogen layout, generous space.

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308 T9 (2013–2021)

Tighter engine bays, more LED DRLs.

New 308 P5 (2021– )

Mostly LED modules; bulb replacement may not apply.

Cost of Replacement

• Bulb price: £6–£25
• Garage fitting: £15–£40
• Full unit (LED): £300+

DIY clearly wins the wallet battle.

MOT and Legal Considerations

• Both headlights must match color
• Aim must be correct
• No flickering allowed

After replacement, check alignment against a wall at night.

Headlight Care Tips

• Clean lenses regularly
• Replace bulbs in pairs
• Avoid power washing directly
• Use dielectric grease on connectors

Treat them like the eyes of a trusted friend.

Should We Upgrade to LED?

Pros:

• Modern white light
• Low power draw

Cons:

• May fail MOT
• Can dazzle others
• Requires CANbus compatibility

Not every upgrade is a happy ending.

Final Thoughts on Peugeot 308 Headlight Bulb Replacement

Replacing a bulb on the Peugeot 308 isn’t a mechanical mountain; it’s more like a small hill with a friendly path. With patience and the right bulb, we bring back the car’s night vision and our own confidence behind the wheel.

Frequently Asked Questions

1. Can I replace a Peugeot 308 headlight bulb without tools?

Yes, on many versions you only need your hands and gloves, though a screwdriver helps with tight covers.

2. Do I need to disconnect the battery?

Not mandatory, but recommended if you’re nervous around electrics.

3. Why did my new bulb burn out quickly?

Most likely touched with bare fingers or voltage fluctuations.

4. Are both sides the same bulb type?

Usually yes for dipped beam, but always verify.

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5. Will any H7 bulb fit?

Physically yes, but quality and brightness vary greatly.

If you want to know other articles similar to Peugeot 308 Headlight Bulb Replacement you can visit the category Service and Parts.