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Dryalite Moisture-Fix Kit | BMW X5 F15 (2013-18) 305239308 Dust Cap (Pair)
£50.00
Dryalite Headlight Moisture-Fix Kit (Pair)
Fits: BMW X5 F15 with removable twist-off dust caps
✓ Helps reduce internal headlight condensation over time
✓ Quick DIY install (typically under 2 minutes)
✓ Reusable desiccant if moisture returns
✓ Helps protect expensive headlights (often £700+ each to replace)
Compatibility
This kit is for BMW X5 F15 headlights that use a removable twist-off dust cap.
Dust cap part number (moulded on the cap):
305 239 308
(May also appear without spaces as 1305239308 depending on how it's written.)
Fitment (Please Read)
BMW X5 F15 uses more than one dust cap type.
This listing fits caps labelled
305 239 308
only.
If your original cap is labelled
305 219 150
please check my other listing.
Photo note: the fitted example image is of a BMW M4, the cap design is shared across models when the part number matches. This part has been confirmed to fit on the BMW F15 X5 (using the same part number)
Unsure? Send me a clear photo of your dust cap (number + overall shape) and I'll confirm fitment.
Not compatible
- Headlights with non-removable / sealed rear covers (no twist-off access cap)
- Caps with a different part number (see Compatibility section)
What's Included
- 2 × Dryalite Moisture-Fix Caps (left + right)
- 2 × 50g silica gel desiccant packs
Installation (no tools)
- Open the bonnet and locate the access dust cap on the top of the headlight.
- Twist the original cap off by hand.
- Fit the Dryalite cap in its place.
- The desiccant will absorb moisture over time.
Notes (Please Read)
- 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.
Re-activating the Desiccant
Microwave: 3–5 minutes at 700W.
Oven: 30–60 minutes at 100–120°C.
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