b'$FWLYDWH\x03FRROLQJ\x03V\\VWHP\x03FRPSRQHQWV\x03XVLQJ\x03WKH\x03 V\\VWHP\x03 FRPSRQHQWV\x11\x03 $W\x03 WKLV\x03 SRLQW\x0f\x03 LW\x03 ZDV\x03 WLPH\x03$FWLYDWH\x03FRROLQJ\x03V\\VWHP\x03FRPSRQHQWV\x03XVLQJ\x03WKH\x03 V\\VWHP\x03 FRPSRQHQWV\x11\x03 $W\x03 WKLV\x03 SRLQW\x0f\x03 LW\x03 ZDV\x03 WLPH\x03 There are two codes which can be set for the N82$IWHU\x03VXFFHVVIXOO\\\x03EOHHGLQJ\x03WKH\x03FRROLQJ\x03V\\VWHP\x03DQG\x03scan tools Output Functions, including electrictocheckthecoolingsystemforrestrictionswith scan tools Output Functions, including electrictocheckthecoolingsystemforrestrictionswithYDOYH\x1d\x03 3\x14\x1b\x1b\x1c\x03 &RRODQW\x03 6KXW\x102\x03 9DOYH\x03 VKRUW\x03 WR\x03 LQVWDOOLQJ\x03 D\x03 QHZ\x03 FDELQ\x03 DLU\x03 OWHU\x0f\x03 WKH\x03 HQJLQH\x03 ZDV\x03FRRODQW\x03SXPSV\x03DQG\x03FRRODQW\x03VKXWR\x03YDOYHV\x11\x03 athermalimager.Thismethodisslightlymore FRRODQW\x03SXPSV\x03DQG\x03FRRODQW\x03VKXWR\x03YDOYHV\x11\x03 athermalimager.ThismethodisslightlymoreJURXQG\x12RSHQ\x03 FLUFXLW\x1e\x03 DQG\x03 3\x14\x1b\x1b\x1b\x03 &RRODQW\x03 6KXW\x102\x03 startedandwithinminutestherewasexcellent Runtheenginetemperaturemanagementinvolvedthanthescantoolchecks,butitisstill Runtheenginetemperaturemanagementinvolvedthanthescantoolchecks,butitisstillValve short circuit to B+. No faults were present onheatoutputfromthevents.Doublecheckingfor DFWXDWRU\x03%DVLF\x036HWWLQJ\x0f\x03ZKLFK\x03UXQV\x03WKH\x03URWDU\\\x03 non-invasive. DFWXDWRU\x03%DVLF\x036HWWLQJ\x0f\x03ZKLFK\x03UXQV\x03WKH\x03URWDU\\\x03 non-invasive.the GTI because the electrical circuits were OK. TheOHDNV\x03DQG\x03D\x03SRVW\x03VFDQ\x03RI\x03WKH\x03YHKLFOH\x03FRQUPHG\x03WKHUH\x03 slide valves through their various positions.slide valves through their various positions. Everything looked normal with the thermal camerafailure was mechanical and therefore not detectablewerenoissuescreatedduringtherepair.The 0RQLWRU\x03FRRODQW\x03WHPS\x03VHQVRUV\x0f\x03VKXWR\x03YDOYHV\x0f\x03 Everything looked normal with the thermal camerahatchback was released back to the owner, who was 0RQLWRU\x03FRRODQW\x03WHPS\x03VHQVRUV\x0f\x03VKXWR\x03YDOYHV\x0f\x03 E\\\x03WKH\x03(&0\x11and coolant pumps through scan tool live data. XQWLO\x03 UHDFKLQJ\x03 WKH\x03 1\x1b\x15\x03 FRRODQW\x03 VKXWR\x03 YDOYH\x11\x03and coolant pumps through scan tool live data. XQWLO\x03 UHDFKLQJ\x03 WKH\x03 1\x1b\x15\x03 FRRODQW\x03 VKXWR\x03 YDOYH\x11\x03 veryhappytonothavetodrivetoworkwithhis /RFDWHG\x03EHKLQG\x03WKH\x03OHIW\x03DLU\x03JXLGH\x03SLSH\x0f\x03WKH\x03FRRODQW\x03Thebasicsettingswererunsuccessfully,andthe/RFDWHG\x03EHKLQG\x03WKH\x03OHIW\x03DLU\x03JXLGH\x03SLSH\x0f\x03WKH\x03FRRODQW\x03 $Q\x03 LPSRUWDQW\x03 VLGH\x03 QRWH\x03 LV\x03 WR\x03 FDUHIXOO\\\x03 LQVSHFW\x03 WKH\x03 thermal underwear, stocking cap and winter gloves YDOYH\x03LV\x03REVFXUHG\x03IURP\x03YLHZ\x0f\x03EXW\x03ZLWK\x03VRPH\x03HRUW\x03Thebasicsettingswererunsuccessfully,andtheYDOYH\x03LV\x03REVFXUHG\x03IURP\x03YLHZ\x0f\x03EXW\x03ZLWK\x03VRPH\x03HRUW\x03 connectors and wiring for coolant migration: coolanton any more. RXWSXW\x03 IXQFWLRQDO\x03 WHVWV\x03 DOO\x03 SDVVHG\x11\x03 /LYH\x03 VFDQ\x03 GDWD\x03 temperature readings were taken at both sides of RXWSXW\x03 IXQFWLRQDO\x03 WHVWV\x03 DOO\x03 SDVVHG\x11\x03 /LYH\x03 VFDQ\x03 GDWD\x03 temperature readings were taken at both sides ofleaking through a sensor or pump can wick into the showed normally operating blend doors and cooling showed normally operating blend doors and coolingthe valve. The inlet hose was warming up consistent:LWK\x03 SURGXFWLRQ\x03 TXRWDV\x03 DQG\x03 DW\x03 UDWH\x03 KRXUV\x03 DW\x03the valve. The inlet hose was warming up consistentwiring harness. If any contamination is found in the with the engine, but the outlet hose leading to thestake, there is a real temptation to load the parts with the engine, but the outlet hose leading to theconnector, the rest of the wiring back to the engine heater core and the heater pipes was stagnant atcannon and replace the component with the highest heater core and the heater pipes was stagnant atcontrol module should also be inspected. around60degrees;itappearedthatthecoolantfailure rate for any given problem, and that is likely around60degrees;itappearedthatthecoolant VKXWR\x03YDOYH\x03ZDV\x03FORVHG\x0f\x03GHVSLWH\x03WKH\x03VFDQ\x03WRRO\x03GDWD\x03 With the new N82 valve installed the next step was towhathappenedwiththeunnecessaryheatercore VKXWR\x03YDOYH\x03ZDV\x03FORVHG\x0f\x03GHVSLWH\x03WKH\x03VFDQ\x03WRRO\x03GDWD\x03showing it was commanded open.bleed the cooling system. Volkswagen recommendsreplacement on this GTI. showing it was commanded open.WKH\x03XVH\x03RI\x03D\x03YDFXXP\x03OO\x03WRRO\x03DIWHU\x03D\x03FRROLQJ\x03V\\VWHP\x03The testing so far was clearly indicating a problem6HDUFKLQJ\x03WKH\x03V\\PSWRP\x03RI\x03\x05QR\x03KHDW\x05\x03RQ\x03D\x03SRSXODU\x03The testing so far was clearly indicating a problemrepair.Therearemanyofthesetoolsavailable withtheN82valve. ThecommandwasthereforSDLG\x03\x05[\x05\x03GDWDEDVH\x03EURXJKW\x03EDFN\x03KXQGUHGV\x03RI\x03KLWV\x03IRU\x03withtheN82valve. Thecommandwasthereforeither as part of a coolant pressure tester set, or as it to be open and there were no fault codes for thea restricted heater core. This method of going after it to be open and there were no fault codes for theD\x03 VWDQG\x10DORQH\x03 UHOOLQJ\x03 GHYLFH\x11\x03 $\x03 FDSDEOH\x03 VFDQ\x03 WRRO\x03 the low hanging fruit and replacing the most likely YDOYH\x0f\x03 VR\x03 D\x03 PHFKDQLFDO\x03 SUREOHP\x03 VHHPHG\x03 OLNHO\\\x11\x03 $\x03YDOYH\x0f\x03 VR\x03 D\x03 PHFKDQLFDO\x03 SUREOHP\x03 VHHPHG\x03 OLNHO\\\x11\x03 $\x03 LV\x03DOVR\x03UHTXLUHG\x03ZKHQ\x03UHOOLQJ\x03WKH\x03V\\VWHP\x11\x037KHUH\x03LV\x03 cause of a given issue may work sometimes, but not QHZ\x03FRRODQW\x03VKXWR\x03YDOYH\x03ZDV\x03RUGHUHG\x03\x03DQG\x03WKH\x03ROG\x03 D\x03 &RROLQJ\x03 6\\VWHP\x03 5HOOLQJ\x12%OHHGLQJ\x03 IXQFWLRQ\x03 WKDW\x03QHZ\x03FRRODQW\x03VKXWR\x03YDOYH\x03ZDV\x03RUGHUHG\x03\x03DQG\x03WKH\x03ROG\x03 RIWHQ\x03HQRXJK\x03WR\x03NHHS\x03FXVWRPHUV\x03KDSS\\\x03DQG\x03SURWV\x03LQ\x03valve was removed.needs to be run under the Guided Functions menu. valve was removed.WKH\x03EODFN\x11\x03$\x03\x18\x13\x13\x03EDWWLQJ\x03DYHUDJH\x03PD\\\x03EH\x03RXWVWDQGLQJ\x03$IWHU\x03GUDLQLQJ\x03WKH\x03FRRODQW\x0f\x03WKH\x03DLU\x03OWHU\x03KRXVLQJ\x03DQG\x03 Thisfunctionopenscoolantvalvesandmayrunin baseball, but it is a failing grade in the shop. $IWHU\x03GUDLQLQJ\x03WKH\x03FRRODQW\x0f\x03WKH\x03DLU\x03OWHU\x03KRXVLQJ\x03DQG\x03 electric pumps as well to aid in getting all the air out air guide pipe need to be removed to gain access air guide pipe need to be removed to gain accessRI\x03WKH\x03V\\VWHP\x11\x03&RQVXOW\x036HUYLFH\x03,QIRUPDWLRQ\x03IRU\x03DQ\\\x03 $\x03 WHFKQLFLDQ\x03 QHHGV\x03 WKH\x03 PLQGVHW\x03 RI\x03 D\x03 VQLSHURQH\x03tothevalve.Fromthereitisastraightforward Heater Pipes Thermal Imager tothevalve.FromthereitisastraightforwardTXHVWLRQV\x03UHODWHG\x03WR\x03UHOOLQJ\x03WKH\x03FRROLQJ\x03V\\VWHP\x11 shot one kill, or in automotive terms one part one Heater Pipes Thermal Imager replacement with two spring clamps and two bolts. replacement with two spring clamps and two bolts.repair. Of course, some repairs require more than Of course, caution is needed to not damage any of Of course, caution is needed to not damage any of6HOHFWLQJ\x03 WKH\x03 FRUUHFW\x03 FRRODQW\x03 LV\x03 DOVR\x03 FULWLFDO\x03 IRU\x03 one part, but operating with the sniper philosophy the myriad of other hoses and connectors that arequality and long-term repairs. Volkswagen has had the myriad of other hoses and connectors that arewillresultinacorrectdiagnosisratherthanan W\\SLFDO\x03IRU\x03D\x039$*\x03HQJLQH\x03ED\\\x11\x03 several coolants over the past 20 years, starting with W\\SLFDO\x03IRU\x03D\x039$*\x03HQJLQH\x03ED\\\x11\x03 HGXFDWHG\x03 JXHVV\x11\x03 &RQWLQXHG\x03 WUDLQLQJ\x03 DQG\x03 VROLG\x03Whenthenewvalvearrived,andaside-by-side*\x14\x14\x03DQG\x03WKH\x03ODWHVW\x03EHLQJ\x03*\x14\x16\x11\x036RPH\x03RI\x03WKHVH\x03FRRODQWV\x03 troubleshooting skills are required to keep up with Whenthenewvalvearrived,andaside-by-sidearebackwardscompatibleandcanbemixed,buttheever-evolvingtechnologythattechniciansare comparisoncouldbemade,theissuewasclear. comparisoncouldbemade,theissuewasclear.Volkswagen does not recommend this practice as itfaced with every day. |The resting state of the new valve was open with The resting state of the new valve was open withshortens the life of the coolant. The theplungerretracted,buttheplungeronthe theplungerretracted,buttheplungeronthecorrectcoolanttypecanusuallybe RULJLQDO\x03YDOYH\x03ZDV\x03IXOO\\\x03H[WHQGHG\x0f\x03LPSHGLQJ\x03WKH\x03RZ\x03RULJLQDO\x03YDOYH\x03ZDV\x03IXOO\\\x03H[WHQGHG\x0f\x03LPSHGLQJ\x03WKH\x03RZ\x03 found printed on the side of expansion ofcoolanttotheheatermatrix,androbbingthe ofcoolanttotheheatermatrix,androbbingthetank.Furtherdetailsregardingthe passenger compartment of heat.passenger compartment of heat. GLHUHQW\x03FRRODQW\x03W\\SHV\x03DUH\x03FRYHUHG\x03LQ\x03)XUWKHU\x03UHDGLQJ\x03RQ\x03WKH\x031\x1b\x15\x03FRRODQW\x03VKXWR\x03YDOYH\x03 7HFKQLFDO\x036HUYLFH\x03%XOOHWLQ\x03\x14\x1c\x10\x14\x1a\x10\x13\x14\x03\x03)XUWKHU\x03UHDGLQJ\x03RQ\x03WKH\x031\x1b\x15\x03FRRODQW\x03VKXWR\x03YDOYH\x03 IdentifyingandMixingVolkswagen providedaclearerunderstanding.Thevalvecan providedaclearerunderstanding.Thevalvecan(QJLQH\x03&RRODQWV\x11\x03DOVR\x03 EH\x03 UHIHUUHG\x03 WR\x03 DV\x03 D\x03 &RRODQW\x03 %ORFNLQJ\x03 9DOYH\x0f\x03DOVR\x03 EH\x03 UHIHUUHG\x03 WR\x03 DV\x03 D\x03 &RRODQW\x03 %ORFNLQJ\x03 9DOYH\x0f\x03which may be a more apt name (especially for this which may be a more apt name (especially for this$V\x03D\x03QDO\x03VWHS\x0f\x03EH\x03VXUH\x03WR\x03LQVSHFW\x03WKH\x03*7,\x0c\x11\x03 7KH\x03 YDOYH\x03 LV\x03 SUHVHQW\x03 RQ\x03 PXOWLSOH\x03 GLHUHQW\x03*7,\x0c\x11\x03 7KH\x03 YDOYH\x03 LV\x03 SUHVHQW\x03 RQ\x03 PXOWLSOH\x03 GLHUHQW\x03 FDELQ\x03DLU\x03OWHU\x03ZKHQ\x03GHDOLQJ\x03ZLWK\x03DQ\\\x03HQJLQHV\x03DFURVV\x039RONVZDJHQ\x03DQG\x03$XGL\x03PRGHOV\x03DQG\x03HQJLQHV\x03DFURVV\x039RONVZDJHQ\x03DQG\x03$XGL\x03PRGHOV\x03DQG\x03 +9$&\x03FRPSODLQW\x11\x03$\x03GLUW\\\x03RU\x03UHVWULFWHG\x03PD\\\x03DOVR\x03EH\x03ODEHOHG\x03DV\x031\x17\x15\x15\x03&RRODQW\x036KXW\x102\x039DOYH\x03PD\\\x03DOVR\x03EH\x03ODEHOHG\x03DV\x031\x17\x15\x15\x03&RRODQW\x036KXW\x102\x039DOYH\x03 OWHU\x03ZLOO\x03OLPLW\x03DLURZ\x03IURP\x03WKH\x03YHQWV\x0f\x03&OLPDWURQLF\x11\x03 3RZHU\x03 WR\x03 WKH\x03 YDOYH\x03 LV\x03 VXSSOLHG\x03 IURP\x03&OLPDWURQLF\x11\x03 3RZHU\x03 WR\x03 WKH\x03 YDOYH\x03 LV\x03 VXSSOLHG\x03 IURP\x03 UHGXFH\x03ZLQGVKLHOG\x03GHIURVWHU\x03HFLHQF\\\x03IXVH\x036%\x1a\x03LQ\x03WKH\x03XQGHU\x10KRRG\x03IXVH\x03EORFN\x11\x037KLV\x03IXVH\x03IXVH\x036%\x1a\x03LQ\x03WKH\x03XQGHU\x10KRRG\x03IXVH\x03EORFN\x11\x037KLV\x03IXVH\x03 and put undue stress on the blower is shared by eight other components including the is shared by eight other components including thePRWRU\x11\x03$OVR\x0f\x03VHOHFW\x03D\x03TXDOLW\\\x03FDELQ\x03OWHU\x037UDQVPLVVLRQ\x03&RRODQW\x039DOYH\x11\x03*URXQG\x03VLGH\x03FRQWURO\x03RI\x037UDQVPLVVLRQ\x03&RRODQW\x039DOYH\x11\x03*URXQG\x03VLGH\x03FRQWURO\x03RI\x03 IRU\x03 EHVW\x03 WPHQW\x03 DQG\x03 SHUIRUPDQFH\x0f\x03WKH\x03VKXWR\x03YDOYH\x03LV\x03SURYLGHG\x03YLD\x03WKH\x03HQJLQH\x03FRQWURO\x03WKH\x03VKXWR\x03YDOYH\x03LV\x03SURYLGHG\x03YLD\x03WKH\x03HQJLQH\x03FRQWURO\x03 making sure to use charcoal infused module. Understanding the design of a circuit willCabin Filtersmodule. Understanding the design of a circuit willOWHUV\x03ZKHQ\x03UHTXLUHG\x11New N82 Valve make testing that circuit a much easier endeavor.New N82 Valve make testing that circuit a much easier endeavor.32'