in dem falle solltest du ein else verwenden also so dann
if(IsPlayerInRangeOfPoint(playerid,2.0,1000.5323,-940.9221,42.1487)
|| IsPlayerInRangeOfPoint(playerid,2.0,1007.1821,-933.7119,42.1731) // tankw
|| IsPlayerInRangeOfPoint(playerid,2.0,1938.9042,-1776.3755,13.3808)
|| IsPlayerInRangeOfPoint(playerid,2.0,1944.3123,-1769.3580,13.3820) // tankw
|| IsPlayerInRangeOfPoint(playerid,2.0,1380.9349,463.2896,20.1310)
|| IsPlayerInRangeOfPoint(playerid,2.0,1383.0538,455.8885,19.8995) // tankw
|| IsPlayerInRangeOfPoint(playerid,2.0,653.2905,-569.9843,16.3285)
|| IsPlayerInRangeOfPoint(playerid,2.0,658.3235,-559.7913,16.3278)
|| IsPlayerInRangeOfPoint(playerid,2.0,-99.2766,-1171.7705,2.4701) //tankw
|| IsPlayerInRangeOfPoint(playerid,2.0,-87.3254,-1163.7476,2.2241) //tankw
|| IsPlayerInRangeOfPoint(playerid,2.0,-1667.5259,410.9921,7.1734)
|| IsPlayerInRangeOfPoint(playerid,2.0,-1680.2010,411.9779,7.1708)
|| IsPlayerInRangeOfPoint(playerid,2.0,-2029.4103,158.7331,28.8301) // tankw
|| IsPlayerInRangeOfPoint(playerid,2.0,-2024.0455,154.7949,28.8271)
|| IsPlayerInRangeOfPoint(playerid,2.0,-2413.9492,970.0224,45.2878) // tankw
|| IsPlayerInRangeOfPoint(playerid,2.0,-2407.4719,982.5601,45.2859)
|| IsPlayerInRangeOfPoint(playerid,2.0,-2248.6003,-2558.2173,31.8950) // tankw
|| IsPlayerInRangeOfPoint(playerid,2.0,-1605.4547,-2714.4626,48.5321)
|| IsPlayerInRangeOfPoint(playerid,2.0,2115.1289,923.3563,10.8127) // tankw
|| IsPlayerInRangeOfPoint(playerid,2.0,-1464.8555,1858.5363,32.6268)
|| IsPlayerInRangeOfPoint(playerid,2.0,-1477.6841,1865.5970,32.6286) // tankw
|| IsPlayerInRangeOfPoint(playerid,2.0,-1329.5178,2672.1833,50.0551)
|| IsPlayerInRangeOfPoint(playerid,2.0,-1327.6125,2682.8066,50.0548)) // tankw
{
GameTextForPlayer(playerid,"~y~Bitte Warten..",3000,4);
TogglePlayerControllable(playerid, 0);
SetTimerEx("Tanken",10000,0,"i",playerid);
Betanken[playerid] = 1;
}else{ return SendClientMessage(playerid,Rot,"Du bist an keiner Tankstelle!");}