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#1
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84 300d No HEAT OH NO!!! And no Defrost even worse!
I have an 84 300d that the buttons do near to nothing. Once in a while I hear some kind of a vacuum sound (tsss- sound of air releasing) happen but If I press the buttons I get the blower to come on and sometimes I can get a breeze coming out of the vents when EC is on but never a strong breeze out of the defrost.
The other prob is this... when I'm going 75 on the interstate I can't get that car to heat up for nothing. If I'm going under 50 it'll get hot on EC but still no defrost. But if my speed is over 50 forget heat. That car's an ice cube. Any clues...
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-E300d '99 350k -Suburban '93 220k -TDI Jetta '03 350k Sold -F250 '96 7.3 -Dodge Ram 12V -E320 '95 200k -E320 Wagon 1994 155k -300d Turbo '87 187k miles -E320 1994 200k -300d Turbo '84 245k (sold to Dan62) -300d Turbo '84 180k -300sd '80 300k -7.3 Powerstroke Diesel 15P Van 500k+ miles -190d '89 Non Turbo 2.5 5cyl 240k (my first MB) Tom's Imports of Columbia MO Ruined the IP in changing leaky delivery valve O-Rings - Refused to stand behind his work. Mid-MO MB drivers-AVOID Tom's. |
#2
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for the heat, try this. warm up the car then shut it off. Before you restart, put the blower on high, GLow the plugs and fire her up. Thier should be heat then. If this happens this would indicate a bad monovalve. Thats how it is on my 240D, i havnt gotten a chance to fix it, and since i dont drive it in the winter, i dont worrie about it.
the warming up issue im unsure of. Someone else will comment, but my quess would be your T-stat working inproperly
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1983 Euro 240D 277K 2016 Mazda 6 Coming Soon, 2013 Mercedes E350 Bluetec Formers: 2012- Mazda 3 2007 Outlander- complete pile 1995 E300 Diesel 208K 2007 VW Passat 2.0T 63K SOLD 2003 Jaguar X-type 3.0 Sport Sold 04/11 w/88K 2009 Lexus RX350 9061 miles. Sold 04/09 2008 Mitsubishi Lancer GTS:Totaled Sept.,09 @ 24,000 2003 Infiniti I35 58K Sold 1984 300 turbo diesel 222K |
#3
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Monovalve. Get a monovalve repair kit ($20) from Fastlane. Simple to replace. 4 screws. Pull out the diaphragm assm. Reinstall 4 screws. easy peazy. Japaneazy.
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Frank 84 500SEL EURO 101K ( JUST LIKE MY 1ST WIFE. GLAD TO GET RID OF HER! ) 85 300D 310K (sold) 90 350SDL 184K sold 83 300D 118K (sold) 88 300E 153k (sold) 93 400E 105K (sold) |
#4
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The "no heat at highway speeds" is definitely symtomatic of a torn monovalve diaphragm.
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#5
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Thanks guys... I'll try the monovalve thing.
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-E300d '99 350k -Suburban '93 220k -TDI Jetta '03 350k Sold -F250 '96 7.3 -Dodge Ram 12V -E320 '95 200k -E320 Wagon 1994 155k -300d Turbo '87 187k miles -E320 1994 200k -300d Turbo '84 245k (sold to Dan62) -300d Turbo '84 180k -300sd '80 300k -7.3 Powerstroke Diesel 15P Van 500k+ miles -190d '89 Non Turbo 2.5 5cyl 240k (my first MB) Tom's Imports of Columbia MO Ruined the IP in changing leaky delivery valve O-Rings - Refused to stand behind his work. Mid-MO MB drivers-AVOID Tom's. |
#6
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I agree the monovalve is bad. However, that doesn't explain all your symptoms. A bad monovalve would not account for blower problems. I suspect there is another problem also.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#7
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Try $44.00
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Jimmy L. '05 Acura TL 6MT 2001 ML430 My Spare Gone: '95 E300 188K "Batmobile" Texas Unfriendly Black '85 300TD 235K "The Wagon" Texas Friendly White '80 240D 154K "China" Scar engine installed '81 300TD 240K "Smash" '80 240D 230K "The Squash" '81 240D 293K"Scar" Rear ended harder than Elton John |
#8
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Wow! Prices must have gone up since I last bought one. I bought one for only $20 about 4 years ago.
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Frank 84 500SEL EURO 101K ( JUST LIKE MY 1ST WIFE. GLAD TO GET RID OF HER! ) 85 300D 310K (sold) 90 350SDL 184K sold 83 300D 118K (sold) 88 300E 153k (sold) 93 400E 105K (sold) |
#9
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There are cheaper suppliers. Ebay for instance.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#10
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Also, many times you can call Phil, and the price he quotes is lower than what is on their online catalog, or he can get a little more competitive. If close, I try to support Fastlane. If not close, well, they should have been cheaper......
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Jimmy L. '05 Acura TL 6MT 2001 ML430 My Spare Gone: '95 E300 188K "Batmobile" Texas Unfriendly Black '85 300TD 235K "The Wagon" Texas Friendly White '80 240D 154K "China" Scar engine installed '81 300TD 240K "Smash" '80 240D 230K "The Squash" '81 240D 293K"Scar" Rear ended harder than Elton John |
#11
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He's gotten smart.
This item had been $19.95 for years. http://cgi.ebay.com/ebaymotors/Heater-Valve-Kit-Mercedes-Benz-300-d-cd-td-sd-123-126_W0QQcmdZViewItemQQcategoryZ33548QQihZ020QQitemZ300072830389QQrdZ1 |
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