It looks like I have an intermittent DRL on the drivers side. It came up with the warning light on the console info a few weeks ago but went off an hour or so later. All good since then. Today I was out and after about 30 minutes the warning came on again and the DRL was off. The rest of the headlight works OK. The car is garaged and today was a dry day. I'd be grateful of any suggestions if it's possible to fix or is it a case of changing out the whole unit? Thanks in advance. A3 2.0TDI Quattro Sportback Black Edition, 59 plate.