Stop headlight fogging

Engineered headlight caps with integrated desiccant.

A simple, reversible way to control headlight humidity. Dryalite replacement caps include a serviceable desiccant chamber to help prevent condensation and the electrical issues it can cause.

Reversible
No wiring, no drilling
Serviceable
Replace or refresh desiccant
OEM-like fit
Model-specific designs

Currently supporting BMW F10, F30, F20 (two types), 2015 X5, with more in progress. Request yours below.

How it works

Each Dryalite headlight dust cap contains desiccant in the form of silica gel packets. It helps absorb residual moisture inside the headlight housing while preserving airflow and serviceability. No permanent modifications are required, and installation is typically under a minute.

  • Designed from precision scans of OEM parts
  • Snap-in or twist-lock fit where applicable
  • Field-tested by enthusiasts

Note: Always address broken seals or cracked housings first—Dryalite complements proper sealing.

Current fitments

BMW 5 Series (F10)

Replacement cap with integrated desiccant.

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BMW 3 Series (F30)

Replacement cap with integrated desiccant.

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BMW 1 Series (F20)

Two cap variations depending on headlight type.

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BMW X5 (2015)

Engineered cap designed for the 2015 model year.

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Other marques

We also engineer solutions for select non-BMW models.

Request your model

FAQ

Is this a permanent fix for moisture?

Dryalite helps fix humidity issues in headlights. If humidity returns, simply renew or replace the desiccant.

How do I refresh the desiccant?

Unscrew the cap and remove the silica gel packets. They can be regenerated by gently drying them in an oven, or you can replace them with fresh desiccant.

Will it affect beam pattern or ventilation?

Caps are engineered to preserve OEM-like function.

Do you take custom or NLA part requests?

Yes — email hello@dryalite.co.uk with photos and part numbers. We prioritise parts with widespread demand.

My car isn't covered — can you make one for my model?

Yes. Email contact@dryalite.co.uk with your car model and details, and we’ll get back to you.

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