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240d heater wont turn off
I have searched the forum and I cannot find anything on the heater on a '77 240d not completly shutting off. Any help would be appreciated. Its getting warm every other day in East Texas. Thanks,
Treeman
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Collector of Fine Hose Clamps '77 240D 'AVA' is in heaven now '80 240D Kanarienvogel '82 300TD 343k was my daily driver 'ADOLPH' In Surgery for a severe Deer Bite to the Nose '88 560SL 102k 'White One' |
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Can you not stop the blower motor or is just a matter of hot air drifting in?
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Quote:
__________________
Collector of Fine Hose Clamps '77 240D 'AVA' is in heaven now '80 240D Kanarienvogel '82 300TD 343k was my daily driver 'ADOLPH' In Surgery for a severe Deer Bite to the Nose '88 560SL 102k 'White One' |
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Your heater control (water) valve may be stuck open. Take a look -- it's just a little nickel/dime part.
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Yeah - warm weather is quickly approaching - the added heating will be dreadful.
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Too much heat = Bad Heater Control Valve
I agree with GermanStar that you have a stuck heater control valve, but it is not exactly a cheap item. I did a quick check and they run about $55. This happened to a 240D I had years ago and I installed a cheap manual valve in the circuit allowing me to shut down all water flow. All you need is a 1/2" 1/4 turn ball valve hose connections either on the valve or threaded into the end connections. Then just cut your heater supply hose and clamp in the valve. You will be able to shut off the water flow to the heater core that way. Should cost you about $8 and take about 30 minutes to install. The hose you want to cut is on the passenger side near the wheel well.
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KCScout 98 S420 My Wife's Baby 97 S320 My road car 83 300D My old road car (love that diesel) 81 300SD Wife's former Baby 81 240D A fun stick shifter 71 220D My first one |
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Do you have the 240D with the manual controls or the ACC with the Evil Vacuum servo...
It can be a cheap fix or a darned expensive one depending on which it is.
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Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
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__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
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Quote:
__________________
Collector of Fine Hose Clamps '77 240D 'AVA' is in heaven now '80 240D Kanarienvogel '82 300TD 343k was my daily driver 'ADOLPH' In Surgery for a severe Deer Bite to the Nose '88 560SL 102k 'White One' |
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Thanks, TREEMAN
__________________
Collector of Fine Hose Clamps '77 240D 'AVA' is in heaven now '80 240D Kanarienvogel '82 300TD 343k was my daily driver 'ADOLPH' In Surgery for a severe Deer Bite to the Nose '88 560SL 102k 'White One' |
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