Bosch Light Bulb - 12V 21W

This Bosch Eco Light Bulb is a single bulb designed for good illumination and value-based replacem...

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AutodocBOSCH Light Bulbs VW,AUDI,MERCEDES-BENZ 1 987 302 251 12V21WW21WPURELIGHT,YY04500889200 Bulb, indicator
£8.45 delivery
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eBayBOSCH-OE 1 987 302 251-OE Bulb, direction indicator for ,ABARTH,AUDI,BMW,BYD,CHE
£5.90 delivery
£3.34
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My Motor WorldBosch Light W21w 12V Pure Car Multi-Fit Bulbs Twin Pack
Free delivery in 1–3 days
£10.49
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OnBuy.comBosch W21w (382W) Pure Halogen Head Bulbs, 12 V 21 W, Original Quality - Socket Type W3x16d - Pack Of 2 Replacement Car Bulbs Light 4047026227475
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£13.09
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Product Information

Full details

This guide is for anyone using the Bosch Light Bulb 12V 21W, a value-focused replacement bulb for various vehicle applications. It's designed for good illumination and durability, offering a practical solution for older vehicles. Note that you should always verify fitment for your specific vehicle make and model before installation.

All features

Model Part Number1987 302 822
BrandBosch

Extended Product Information

FAQs

What is the lifespan of the Bosch Light Bulb?

The lifespan can vary depending on usage and operating conditions. However, the durable design ensures a reasonable lifespan compared to other bulbs.

Can I use this bulb in my headlights?

No, this bulb is typically designed for specific applications like rear fog lights. Check your vehicle's manual for the correct bulb type for headlights.

How do I know if this bulb fits my vehicle?

Use the make and model tool on the website to verify compatibility. You can also consult your vehicle's owner's manual or contact us for assistance.

What should I do if the bulb fails prematurely?

Ensure the bulb is correctly installed. Check the vehicle's electrical system for any underlying issues. Contact customer service for warranty information.

Is this bulb suitable for all weather conditions?

Yes, it is designed to function in various weather conditions. However, always ensure your vehicle's lights are functioning correctly for optimal visibility.

What is the warranty period for the Bosch Light Bulb?

Warranty details are not specified in the product description. Please refer to your purchase details or contact the seller for warranty information.

Troubleshooting

Light bulb does not turn on.

Check the bulb's connections. Ensure the bulb is correctly seated in the socket and that the electrical contacts are clean and free of corrosion. Also, check the fuse related to that light.

Light is dim or flickering.

The bulb might be nearing the end of its life, or there might be a problem with the vehicle's electrical system. Replace the bulb with a new one. If the problem persists, consult a qualified mechanic.

Pros and Cons

Pros

  • Cost-effective solution for replacing vehicle bulbs.
  • Durable construction ensures a longer lifespan.
  • Provides good illumination for essential applications.
  • Easy to install due to the standardized design.
  • Wide compatibility with various vehicle models.

Cons

  • May not offer the same level of brightness as higher-end bulbs.
  • Limited to specific applications, such as rear fog lights.
  • Requires checking vehicle compatibility before purchase.

Setup, Compatibility & Care

  1. Compatibility: Confirm that the W21W bulb type, 12V voltage, and W3x16d base are compatible with your vehicle. Use the make and model tool for verification or contact us for assistance.
  2. Installation: Consult your vehicle's owner's manual for proper bulb replacement procedures. Ensure the vehicle's electrical system is off before starting.
  3. Care: Handle the bulb with care, avoiding direct contact with the glass surface. Avoid touching the glass portion of the bulb as oils from your skin can reduce its lifespan. Clean the lens housing before installation. Regularly inspect the bulbs for any signs of damage or diminished light output.

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