I've noticed that the rear lights of my 17 plate A3 are always on regardless of the light switch being in the off position. Just to clarify this is when the engine the ignition is on. The headlights aren't on just the drls. It did cross my mind that it might be a 'new' thing to have rear drls but surely this would make drivers behind less aware of the brake lights. Or perhaps this is an issue with my light sensor?