Unalmamban megcsináltam neked 

 Ha nem mûködne szólj! 
public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
if(newkeys == KEY_SUBMISSION)// 2-es és + gomb
{
if(IsPlayerInAnyVehicle(playerid))
{
   {
            RepairVehicle(GetPlayerVehicleID(playerid));
   }
}
}
if(newkeys == KEY_ANALOG_RIGHT)// num 6
{
if(IsPlayerInAnyVehicle(playerid))
{
   {
            new Float:X, Float:Y, Float: Z, Float:Angle;
   GetVehiclePos(GetPlayerVehicleID(playerid),X,Y,Z);
   GetVehicleZAngle(GetPlayerVehicleID(playerid),Angle);
   SetVehiclePos(GetPlayerVehicleID(playerid),X,Y,Z+2);
   SetVehicleZAngle(GetPlayerVehicleID(playerid),Angle);
   }
}
}
return 1;
}