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Dryalite Headlight Moisture Kit for BMW Z4 E89 2009-2016 (Pair) 147354-00

Dryalite absorbs humidity from the air inside your headlight. Choose your vehicle to find the right kit.

Kit: £45.00 - Available.

Dryalite Headlight Moisture Kit for BMW Z4 E89 2009-2016 (Pair) 147354-00

Fitment and specification

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Dryalite Headlight Moisture-Fix Kit (Pair)
For BMW Z4 E89 with removable twist-off headlight dust caps
✅ Helps reduce headlight condensation
✅ Quick DIY install, typically under 2 minutes
✅ Reusable desiccant if moisture returns
✅ Protects Expensive OEM headlights
✅ Much cheaper than resealing headlights (£200+ per side)
Compatibility
Fits BMW Z4 E89 headlights with removable twist-off dust caps.
This kit replaces the dust cap at the top of the headlight, accessible when opening the bonnet, not the rear cap.
Original dust cap part number: 147354-00
What’s Included
2 x Dryalite Moisture-Fix Caps
2 x 50g silica gel desiccant packs
No foam gasket or rubber O ring supplied, you will have to re-use the one from your OEM part
How It Works
Dryalite helps absorb moisture from the air inside the headlight housing, reducing internal condensation when the housing is otherwise reasonably sealed.
Reactivating the Desiccant
Remove the desiccant packs before heating. Let them cool fully before refitting.
Microwave: 700W for 3 to 5 minutes in a microwave-safe dish
Oven: 100 to 120°C for 30 to 60 minutes
Important Note
This kit is intended for condensation / humidity issues. If there is standing water, a cracked lens, or damaged seals, the underlying leak should be repaired first.
30 Day Money Back Guarantee

How does Dryalite reduce condensation?

Dryalite holds moisture-absorbing silica gel inside vehicle-specific headlight caps. It absorbs water vapour from the air inside the headlight, leaving less moisture available to condense on the lens.

Twist-off cap kits need no cutting or drilling. The sealed-cap F10 kit uses a different fitting method explained in its product details.

Recurring misting, not active leaks. If the headlight is cracked or has pools of water inside, Dryalite will not fix it. Repair the fault first.

Green means recharge.

Remove the silica packets, dry them until the beads turn orange, let them cool, then put them back.

30-day full-refund guarantee

If it does not help, return your kit within 30 days for a full refund.

Questions before ordering.

Will Dryalite fix every condensation problem?

No. Dryalite absorbs humidity from the air inside the headlight. It cannot repair a cracked headlight or deal with pools of water inside it.

Is the silica gel loose inside the headlight?

No. The silica packets sit securely inside the Dryalite cap, away from the bulb and reflector.

How quickly should I see a difference?

Some buyers see an improvement within hours. Allow a few days, as every headlight starts with a different amount of moisture.

How do I choose the right kit?

Choose your model above and compare the product photos with your headlight cap. Contact us if you want help checking.

Can the silica gel be reused?

Yes. Orange means ready and green means saturated. When the beads turn green, remove and dry the silica packets, let them cool fully, then refit them. Never heat the caps or seals.

Do I need to permanently modify my headlights?

Twist-off cap kits require no permanent modification. The sealed-cap F10 kit uses a different fitting method, so check its product details before ordering.

How often will the silica need recharging?

It depends on the weather and your headlight. Check the indicator beads and recharge only when they turn green.

What if Dryalite does not help?

Return the kit within 30 days for a full refund.