Merc atego 2005 dash light help

Hi could anyone tell me what this yellow dash light is many thanks

Could it be low brake pads

That’s what I was thinking but wanted to know for sure as Google is no help lol

The manual has it as the “Continuous” breaks and says if it’s on permanently it needs checking out.
Could the retarder leaver have been left in the on position?

The manual can be found here
www4.mercedes-benz.com/manual-tr … base.shtml

Look under “Driving Mode” then “Brakes”

if you mean the arrow in the circle its the exhaust brake in the on position, which will activate the brake every time you touch the brakes, just push the right hand stalk up towards the windscreen 1 position, when you want it to work again pull it down as if indicating to turn right, if its the number (1) in the brackets, it is the pressure in air tank number 1, as you build up the air it fluctuates between tank 1 and 2 the one that stays on is the lowest pressure of the two tanks, this is normal for one to be on, either (1) or (2)