<div> <h1>Left DRL Lamp Tube for MERCEDES-BENZ GLA-CLASS X156 (2015-2016) Pre-Facelift</h1> <p>This is a like-for-like daytime running light (DRL) guide — the clear light-channelling strip fitted inside the headlight that forms the daytime signature glow. Over years of heat the original guide yellows, clouds or cracks and the daytime line dims or turns patchy; this part brings it back to as-new without the cost of a whole new headlight.</p> <p><strong>Features</strong></p> <ul> <li>Direct replacement that reproduces the original DRL line</li> <li>Reuses the headlight's existing LED source, with no wiring changes or coding</li> <li>Made to factory dimensions for a precise, no-modification fit</li> </ul> <p><strong>Fitment &amp; Care</strong></p> <p>Fitting means opening the headlight to separate the lens, replacing the guide and resealing the unit, so we recommend installation by a qualified technician. It reuses the original LED, needs no coding, and asks only that the lens is kept clean. This covers one headlight; order the opposite side for a complete pair.</p> </div>