Thanks for the replies guys.
The windscreen washers work fine. However there is absolutely no sign of life from the headlight washer jets. I can't hear a pump working either.
Looking like an electrical issue I'm guessing.
2006 E90 325i SE - Silver - Manual - Xenon Headlights - Full Leather Interior - Extended Interior Light Package - DCC - 18" Black Multispoke Alloys ~ Style 269.