Having a made with these lights atm. First it was a service/ airbag light now its this. Again doesn't come on all the time, just under hard acceleration really. Been told it could be the brake fluid but checked that and its full. Had rear brakes changed not so long back and are quite spongy, could possibly be a air in the lines as it shouldn't be as spongy as it Is, could it be down to that or would it be something different? Cheers Paul.