22 Keys, doors and windowsExtend the key and open the unit.Replace the battery (battery typeCR 2032), paying attention to theinstallation position. Close the unitand synchronise.Radio remote controlsynchronisationAfter replacing the battery, unlock thedoor with the key in the driver's doorlock. The radio remote control will besynchronised when you switch on theignition.FaultIf the central locking system cannotbe operated with the radio remotecontrol, the cause may be one of thefollowing:● Fault in radio remote control.● The range is exceeded.● The battery voltage is too low.● Frequent, repeated operation ofthe radio remote control while notin range, which will require re-synchronisation.● Overload of the central lockingsystem by operating at frequentintervals, the power supply isinterrupted for a short time.● Interference from higher-powerradio waves from other sources.Manual unlocking 3 24.Electronic key systemEnables a keyless operation of thefollowing functions:● central locking system 3 24● tailgate 3 29● ignition switching on and startingthe engine 3 158The electronic key simply needs to beon the driver's person.Additionally, the electronic keyincludes the functionality of the radioremote control 3 21.Handle with care, protect frommoisture and high temperatures andavoid unnecessary operation.
