154 Driving and operatingDriving and operatingDriving hints ............................... 154Starting and operating ............... 155Engine exhaust .......................... 159Automatic transmission .............. 164Manual transmission .................. 167Brakes ........................................ 168Ride control systems ................. 171Driver assistance systems ......... 174Fuel ............................................ 203Towing ....................................... 213Driving hintsControl of the vehicleNever coast with engine notrunning (except duringAutostop)Many systems will not function in thissituation (e.g. brake servo unit, powersteering). Driving in this manner is adanger to yourself and others. Allsystems function during an Autostop,but there will be a controlled reductionin power steering assist and vehiclespeed is reduced.Stop-start system 3 157.Idle boostIf charging of the battery is requireddue to battery condition, the poweroutput of the generator has to beincreased. This will be achieved by anidle boost which may be audible.On vehicles with Uplevel-Display orUplevel-Combi-Display, a messageappears in the Driver InformationCentre.PedalsTo ensure the pedal travel isuninhibited, there must be no mats inthe area of the pedals.