Re: [MBZ] Thermostat behaviour
Regardless, once you peg the temperature gauge, the odds are high that the thermostat needs to be replaced, UNLESS you had an air pocket in the top of the head. The late Dieseling Doctor used to say that the wax pellet in the t-stat would deform to the point that it no longer worked correctly. I like the idea of an air pocket in the system, especially if you recently drained/filled the coolant. Need to have the nose of the car elevated, begin fill at the upper radiator hose into the engine, keep heat setting on full heat and patiently fill in as much coolant as possible. I like to burp the system by squeezing the upper radiator hose until air no longer bubble up into the expansion tank and I don't hear air gurgling around when I squeeze the hose. A good sign that you have an air pocket is a gurgling sound under the dash upon hard acceleration. Max -Original Message- From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Curt Raymond Sent: Tuesday, December 08, 2009 9:54 PM To: Diesel List Subject: Re: [MBZ] Thermostat behaviour That doesn't sound like thermostat to me at all. Coolant level? -Curt Date: Tue, 08 Dec 2009 19:03:14 -0500 From: Michael Esh michael...@me.com Subject: Re: [MBZ] Thermostat behaviour To: Mercedes Discussion List mercedes@okiebenz.com Message-ID: 90845282-7154-4fe8-913e-9eaeb6dce...@me.com Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Thanks for the help everyone. The coolant temp nearly pegged out, then after I played around the HVAC buttons it dropped to normal and the heater started blowing warm. Mike On Dec 8, 2009, at 11:24 AM, Dillon, Meade M CIV SPAWARSYSCEN- ATLANTIC, 53310 wrote: Mike, How high is way up? I doubt they're related problems, sounds like a monovalve failure for the lack of cabin heat (or some other problem with the HVAC) and maybe thermostat for the overheating (over 95 deg C is probably too hot when not in AC-season). Max ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
I took the car (84 300D) out this morning and everything worked normally. I am hoping it was a bubble/glitch in the system. Coolant level is good. Mike On Dec 8, 2009, at 9:53 PM, Curt Raymond wrote: That doesn't sound like thermostat to me at all. Coolant level? -Curt Date: Tue, 08 Dec 2009 19:03:14 -0500 From: Michael Esh michael...@me.com Subject: Re: [MBZ] Thermostat behaviour To: Mercedes Discussion List mercedes@okiebenz.com Message-ID: 90845282-7154-4fe8-913e-9eaeb6dce...@me.com Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Thanks for the help everyone. The coolant temp nearly pegged out, then after I played around the HVAC buttons it dropped to normal and the heater started blowing warm. Mike On Dec 8, 2009, at 11:24 AM, Dillon, Meade M CIV SPAWARSYSCEN- ATLANTIC,53310 wrote: Mike, How high is way up? I doubt they're related problems, sounds like a monovalve failure for the lack of cabin heat (or some other problem with the HVAC) and maybe thermostat for the overheating (over 95 deg C is probably too hot when not in AC-season). Max ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
[MBZ] Thermostat behaviour
1984 300d - Does the thermostat typically get stuck in the closed position? The temp gauge is going way up while the heat is not showing up in car. This just started recently with the onset of the cold weather. Any suggestions? Thanks Mike ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
Mike, How high is way up? I doubt they're related problems, sounds like a monovalve failure for the lack of cabin heat (or some other problem with the HVAC) and maybe thermostat for the overheating (over 95 deg C is probably too hot when not in AC-season). Max -Original Message- From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Michael Esh Sent: Tuesday, December 08, 2009 11:10 AM To: Mercedes Discussion List Subject: [MBZ] Thermostat behaviour 1984 300d - Does the thermostat typically get stuck in the closed position? The temp gauge is going way up while the heat is not showing up in car. This just started recently with the onset of the cold weather. Any suggestions? Thanks Mike ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
From: Michael Esh michael...@me.com 1984 300d - Does the thermostat typically get stuck in the closed position? Nope This just started recently with the onset of the cold weather. Any suggestions? Not enough coolant? Air pocket? Monovalve? Too much water and it is frozen? Rick ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
Rick Knoble wrote: Not enough coolant? Air pocket? Monovalve? Too much water and it is frozen? I saw 16° F a couple of times in the last several days, and I'm about 100 miles from Mike. I think I'm south of him, but he's closer to Lake Michigan. I slushed up the Taurus a couple of times when the coolant was apparently weak, the temp would shoot to the sky before enough ice melted to allow circulation outside the engine. No heat or engine cooling until the steam from the engine got to the ice elsewhere. 2nd time it happened cost me a radiator, and probably contributed to my head gasket job a few thousand miles later. Mitch. ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
It can and thats what I surmise finally ruined the headgasket in my 300TD. On the other hand the other night my 240D was running real hot. Turned out it was 2 quarts low on coolant. I've got a leak somewhere I need to track down. -Curt Date: Tue, 08 Dec 2009 11:09:36 -0500 From: Michael Esh michael...@me.com Subject: [MBZ] Thermostat behaviour To: Mercedes Discussion List mercedes@okiebenz.com Message-ID: 855cd18a-5075-4788-9e98-581a5cec0...@me.com Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes 1984 300d - Does the thermostat typically get stuck in the closed position? The temp gauge is going way up while the heat is not showing up in car. This just started recently with the onset of the cold weather. Any suggestions? Thanks Mike ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
Ouch. My bet is on a broken water pump. On Tue, Dec 8, 2009 at 12:22 PM, Curt Raymond curtlud...@yahoo.com wrote: It can and thats what I surmise finally ruined the headgasket in my 300TD. On the other hand the other night my 240D was running real hot. Turned out it was 2 quarts low on coolant. I've got a leak somewhere I need to track down. -Curt Date: Tue, 08 Dec 2009 11:09:36 -0500 From: Michael Esh michael...@me.com Subject: [MBZ] Thermostat behaviour To: Mercedes Discussion List mercedes@okiebenz.com Message-ID: 855cd18a-5075-4788-9e98-581a5cec0...@me.com Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes 1984 300d - Does the thermostat typically get stuck in the closed position? The temp gauge is going way up while the heat is not showing up in car. This just started recently with the onset of the cold weather. Any suggestions? Thanks Mike ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
Thanks for the help everyone. The coolant temp nearly pegged out, then after I played around the HVAC buttons it dropped to normal and the heater started blowing warm. Mike On Dec 8, 2009, at 11:24 AM, Dillon, Meade M CIV SPAWARSYSCEN- ATLANTIC, 53310 wrote: Mike, How high is way up? I doubt they're related problems, sounds like a monovalve failure for the lack of cabin heat (or some other problem with the HVAC) and maybe thermostat for the overheating (over 95 deg C is probably too hot when not in AC-season). Max -Original Message- From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Michael Esh Sent: Tuesday, December 08, 2009 11:10 AM To: Mercedes Discussion List Subject: [MBZ] Thermostat behaviour 1984 300d - Does the thermostat typically get stuck in the closed position? The temp gauge is going way up while the heat is not showing up in car. This just started recently with the onset of the cold weather. Any suggestions? Thanks Mike ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
You probably have the heater air bound. Was a PIA on mt 300SDL to purge it. Had to do many cold to hot cycles. Strong point for one of my old Dodges, it had a pipe plug on top of the goose neck to facilitate bleeding, worked 100%. Michael Esh wrote: 1984 300d - Does the thermostat typically get stuck in the closed position? The temp gauge is going way up while the heat is not showing up in car. This just started recently with the onset of the cold weather. Any suggestions? Thanks Mike ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
Blown Head Gaskets were OEM on the 3.8 Fords -- Pete Arnold My Mind Not Only Wanders, Sometimes it Leaves Completely! Mitch Haley wrote: Rick Knoble wrote: Not enough coolant? Air pocket? Monovalve? Too much water and it is frozen? I saw 16° F a couple of times in the last several days, and I'm about 100 miles from Mike. I think I'm south of him, but he's closer to Lake Michigan. I slushed up the Taurus a couple of times when the coolant was apparently weak, the temp would shoot to the sky before enough ice melted to allow circulation outside the engine. No heat or engine cooling until the steam from the engine got to the ice elsewhere. 2nd time it happened cost me a radiator, and probably contributed to my head gasket job a few thousand miles later. Mitch. ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
Not sure thermostat is bad. Had this issue with old car that had radiator freeze up. Not enough heat to defrost it after is got solid, and at speed, all the calories were sucked out before they could make phase change to water from ice. clay On Dec 8, 2009, at 8:09 AM, Michael Esh wrote: 1984 300d - Does the thermostat typically get stuck in the closed position? The temp gauge is going way up while the heat is not showing up in car. This just started recently with the onset of the cold weather. Any suggestions? Thanks Mike ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
1984 300d - Does the thermostat typically get stuck in the closed position? Not usually. The temp gauge is going way up while the heat is not showing up in car. This just started recently with the onset of the cold weather. Any suggestions? Air pocket. Frozen coolant. -- Jim ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
That doesn't sound like thermostat to me at all. Coolant level? -Curt Date: Tue, 08 Dec 2009 19:03:14 -0500 From: Michael Esh michael...@me.com Subject: Re: [MBZ] Thermostat behaviour To: Mercedes Discussion List mercedes@okiebenz.com Message-ID: 90845282-7154-4fe8-913e-9eaeb6dce...@me.com Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Thanks for the help everyone. The coolant temp nearly pegged out, then after I played around the HVAC buttons it dropped to normal and the heater started blowing warm. Mike On Dec 8, 2009, at 11:24 AM, Dillon, Meade M CIV SPAWARSYSCEN- ATLANTIC, 53310 wrote: Mike, How high is way up? I doubt they're related problems, sounds like a monovalve failure for the lack of cabin heat (or some other problem with the HVAC) and maybe thermostat for the overheating (over 95 deg C is probably too hot when not in AC-season). Max ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
Could be but I doubt it, its been leaking for a year now... It leaks about 2 quarts every 6 months at which point something happens, I notice it and top it off... This time the car got hot, last time I just happened to check. -Curt Date: Tue, 8 Dec 2009 15:09:44 -0500 From: andrew strasfogel astrasfo...@gmail.com Subject: Re: [MBZ] Thermostat behaviour To: Mercedes Discussion List mercedes@okiebenz.com Message-ID: b8cdcef40912081209x73be6517ia2ea256205e12...@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1 Ouch. My bet is on a broken water pump. On Tue, Dec 8, 2009 at 12:22 PM, Curt Raymond curtlud...@yahoo.com wrote: It can and thats what I surmise finally ruined the headgasket in my 300TD. On the other hand the other night my 240D was running real hot. Turned out it was 2 quarts low on coolant. I've got a leak somewhere I need to track down. -Curt ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Thermostat behaviour
Peter T. Arnold wrote: Blown Head Gaskets were OEM on the 3.8 Fords Yeah, but I replaced the blown one right after I bought the car for $250. Then I froze/overheated the car a couple of times and the problem came back. The 2nd time around I replaced both gaskets and had the heads milled for good measure. That was about 35,000 miles ago. ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
