Re: [MBZ] Heat AC Failure monovalve
A bad diaphram will do several things -- it is resistant to flexing when installed, so the valve won't open and close on demand, tending to stay in one position or the other (that is, too much heat, not enough), it won't seal correctly when closed (too much heat, a real pain in the summer), and it will leak into the solenoid coil and corrode it, causing the valve to stick even more and eventually fail. This can cook some PBCUs. Cheap and easy enough in a W126, no reason not to spend the $30 or so. Ditto for a thermostat -- if it won't come up to temp quickly under load in the winter, replace the thermostat. Cheap, fairly easy, make a huge difference. Note that a 603 in bitter cold weather will NOT come up to operating temperature at light load no matter how long you idle it. I've been stuck by a train and sat there watching the temp gauge slowly fall while I froze... Peter -Original Message- From: M.Afzaal.Khan [EMAIL PROTECTED] Sent: Oct 18, 2006 1:42 AM To: Mercedes Discussion List mercedes@okiebenz.com Subject: [MBZ] Heat AC Failure monovalve Ok Its better now we know the car model ! As mentioned earlier on ,first replace the monovalve then check for other faults,which simply may not exist after the monovalve has been replaced. i had a similar fault with varied a/c symptoms ,all was normal after replacing only the monovalve. (worn diaphragm) mak 300SE/1990 That last posting regarding heat and AC failure - the car is a 1990 300SE thanks, les ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.408 / Virus Database: 268.13.4/476 - Release Date: 10/14/2006 ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Heat AC Failure monovalve
$30?? I think not! Best price on a monovalve has climbed into the mid $40s as of last month. On 10/18/06, Peter Frederick [EMAIL PROTECTED] wrote: A bad diaphram will do several things -- it is resistant to flexing when installed, so the valve won't open and close on demand, tending to stay in one position or the other (that is, too much heat, not enough), it won't seal correctly when closed (too much heat, a real pain in the summer), and it will leak into the solenoid coil and corrode it, causing the valve to stick even more and eventually fail. This can cook some PBCUs. Cheap and easy enough in a W126, no reason not to spend the $30 or so. Ditto for a thermostat -- if it won't come up to temp quickly under load in the winter, replace the thermostat. Cheap, fairly easy, make a huge difference. Note that a 603 in bitter cold weather will NOT come up to operating temperature at light load no matter how long you idle it. I've been stuck by a train and sat there watching the temp gauge slowly fall while I froze... Peter -Original Message- From: M.Afzaal.Khan [EMAIL PROTECTED] Sent: Oct 18, 2006 1:42 AM To: Mercedes Discussion List mercedes@okiebenz.com Subject: [MBZ] Heat AC Failure monovalve Ok Its better now we know the car model ! As mentioned earlier on ,first replace the monovalve then check for other faults,which simply may not exist after the monovalve has been replaced. i had a similar fault with varied a/c symptoms ,all was normal after replacing only the monovalve. (worn diaphragm) mak 300SE/1990 That last posting regarding heat and AC failure - the car is a 1990 300SE thanks, les ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.408 / Virus Database: 268.13.4/476 - Release Date: 10/14/2006 ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Heat AC Failure monovalve
Nope. AutohausAZ, the Bosch whores of America, have them for $35.91 which is exactly $7.60 below my cost. These guys are idiots. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of andrew strasfogel Sent: Wednesday, October 18, 2006 11:47 AM To: Peter Frederick; Mercedes Discussion List Subject: Re: [MBZ] Heat AC Failure monovalve $30?? I think not! Best price on a monovalve has climbed into the mid $40s as of last month. On 10/18/06, Peter Frederick [EMAIL PROTECTED] wrote: A bad diaphram will do several things -- it is resistant to flexing when installed, so the valve won't open and close on demand, tending to stay in one position or the other (that is, too much heat, not enough), it won't seal correctly when closed (too much heat, a real pain in the summer), and it will leak into the solenoid coil and corrode it, causing the valve to stick even more and eventually fail. This can cook some PBCUs. Cheap and easy enough in a W126, no reason not to spend the $30 or so. Ditto for a thermostat -- if it won't come up to temp quickly under load in the winter, replace the thermostat. Cheap, fairly easy, make a huge difference. Note that a 603 in bitter cold weather will NOT come up to operating temperature at light load no matter how long you idle it. I've been stuck by a train and sat there watching the temp gauge slowly fall while I froze... Peter -Original Message- From: M.Afzaal.Khan [EMAIL PROTECTED] Sent: Oct 18, 2006 1:42 AM To: Mercedes Discussion List mercedes@okiebenz.com Subject: [MBZ] Heat AC Failure monovalve Ok Its better now we know the car model ! As mentioned earlier on ,first replace the monovalve then check for other faults,which simply may not exist after the monovalve has been replaced. i had a similar fault with varied a/c symptoms ,all was normal after replacing only the monovalve. (worn diaphragm) mak 300SE/1990 That last posting regarding heat and AC failure - the car is a 1990 300SE thanks, les ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.408 / Virus Database: 268.13.4/476 - Release Date: 10/14/2006 ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Heat AC Failure monovalve
Nope. AutohausAZ, the Bosch whores of America, have them for $35.91 which is exactly $7.60 below my cost. These guys are idiots. How can they stay in business losing money? Perhaps they are in the money laundering business with parts as a sideline.? Rick Knoble '85 300 CD '87 190 DT
Re: [MBZ] Heat AC Failure monovalve
Well we know where you will be buying yours from... Trampas -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rusty Sent: Wednesday, October 18, 2006 11:54 AM To: 'Mercedes Discussion List' Subject: Re: [MBZ] Heat AC Failure monovalve Nope. AutohausAZ, the Bosch whores of America, have them for $35.91 which is exactly $7.60 below my cost. These guys are idiots. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of andrew strasfogel Sent: Wednesday, October 18, 2006 11:47 AM To: Peter Frederick; Mercedes Discussion List Subject: Re: [MBZ] Heat AC Failure monovalve $30?? I think not! Best price on a monovalve has climbed into the mid $40s as of last month. On 10/18/06, Peter Frederick [EMAIL PROTECTED] wrote: A bad diaphram will do several things -- it is resistant to flexing when installed, so the valve won't open and close on demand, tending to stay in one position or the other (that is, too much heat, not enough), it won't seal correctly when closed (too much heat, a real pain in the summer), and it will leak into the solenoid coil and corrode it, causing the valve to stick even more and eventually fail. This can cook some PBCUs. Cheap and easy enough in a W126, no reason not to spend the $30 or so. Ditto for a thermostat -- if it won't come up to temp quickly under load in the winter, replace the thermostat. Cheap, fairly easy, make a huge difference. Note that a 603 in bitter cold weather will NOT come up to operating temperature at light load no matter how long you idle it. I've been stuck by a train and sat there watching the temp gauge slowly fall while I froze... Peter -Original Message- From: M.Afzaal.Khan [EMAIL PROTECTED] Sent: Oct 18, 2006 1:42 AM To: Mercedes Discussion List mercedes@okiebenz.com Subject: [MBZ] Heat AC Failure monovalve Ok Its better now we know the car model ! As mentioned earlier on ,first replace the monovalve then check for other faults,which simply may not exist after the monovalve has been replaced. i had a similar fault with varied a/c symptoms ,all was normal after replacing only the monovalve. (worn diaphragm) mak 300SE/1990 That last posting regarding heat and AC failure - the car is a 1990 300SE thanks, les ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.408 / Virus Database: 268.13.4/476 - Release Date: 10/14/2006 ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
