154 Drivin g and OperationBrake systemThe effectiveness of the brakes is a nimportant factor for traffic safety.To improve effectiveness, do not b ra keunnecessarily hard for the first 125 miles(200 km) after new brake pads have beenfitted.Brake pad wear must not exceed aspecified limit. Regular maintenance asdetailed in the Service Book let is thereforeof the utm ost importance for traffic safety.Have worn brake pads replaced by awork shop.Tested a nd approved pads give optimumbraking performance.Brake pads worn to the minimum levelcause grinding noises. You may continueto drive but ha ve the pads replaced assoon as possible. To change the pad s,contact a workshop.Picture no: 14722s.tifBrak e assi stIf the footbrake is operated with a powerfulpush, the v ehicle is a utomatica lly brakedat full brak ing power in order to achiev ethe shortest possible braking distancewhen full-on braking occurs (brakingassistant).Maintain steady pressure on the footbrakefor a s long as full-on braking is to continue.When the footbrake is released, thema ximum brak e force amplification istaken away .Ad aptiv e brake li ghts 3During full-on brak ing, all three brakelights flash for the dura tion of ABS control.