Is your Audi's daytime running light (DRL) acting up or not working? This SEADEAR control module replaces part numbers 4G0907697D, 28357987, and 401140244. It fits a bunch of Audi models from 2012-2017, including the A4, A5, A6, Q3, Q5, and TT. If your headlight ballast got wet or failed, this is often the part you need. It's a direct swap – just unplug the old one and plug this in. Make sure your headlight housing isn't full of water, though, or the new one might fail too. Fix those annoying DRL errors and get your lights working properly again. Easy install if you're handy, or take it to your mechanic. Always double-check your specific model year before buying.