[RedWingz]

Use this:

pawn Код:

if(!strcmp("/repair", cmdtext))
    {
        if(!IsPlayerInAnyVehicle(playerid)) return SendClientMessage(playerid, COLOR_RED, "You are not in a vehicle!");
        RepairVehicle(GetPlayerVehicleID(playerid));
        SendClientMessage(playerid, COLOR_GREEN, "You have repaired your vehicle!");
        return 1;
    }

Much easier.