Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-21-2007, 08:38 AM
777funk's Avatar
Registered User
 
Join Date: Dec 2006
Posts: 1,031
Thumbs up 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...

__________________
-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.
Reply With Quote
  #2  
Old 01-21-2007, 10:25 AM
stcbenz83's Avatar
Mercedes Euro 240D
 
Join Date: Mar 2006
Location: Louisville, KY
Posts: 1,056
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
__________________
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
Reply With Quote
  #3  
Old 01-21-2007, 10:37 AM
fz500sel's Avatar
Happy now in paradise!
 
Join Date: Nov 1999
Location: Venice, FL - "sharktooth capital of the world"
Posts: 712
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.
__________________
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)
Reply With Quote
  #4  
Old 01-21-2007, 10:48 AM
Registered User
 
Join Date: Sep 2004
Posts: 8,971
The "no heat at highway speeds" is definitely symtomatic of a torn monovalve diaphragm.
Reply With Quote
  #5  
Old 01-21-2007, 03:46 PM
777funk's Avatar
Registered User
 
Join Date: Dec 2006
Posts: 1,031
Thanks guys... I'll try the monovalve thing.
__________________
-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.
Reply With Quote
  #6  
Old 01-21-2007, 03:53 PM
Registered User
 
Join Date: Jan 2002
Posts: 18,350
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.
__________________
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
Reply With Quote
  #7  
Old 01-21-2007, 03:54 PM
JimmyL's Avatar
Rogue T Intolerant!!!
 
Join Date: May 2004
Location: Sunnyvale, Texas (DFW)
Posts: 9,675
Quote:
Originally Posted by fz500sel View Post
Monovalve. Get a monovalve repair kit ($20) from Fastlane.

Try $44.00
__________________
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
Reply With Quote
  #8  
Old 01-21-2007, 09:44 PM
fz500sel's Avatar
Happy now in paradise!
 
Join Date: Nov 1999
Location: Venice, FL - "sharktooth capital of the world"
Posts: 712
Quote:
Originally Posted by JimmyL View Post
Try $44.00
Wow! Prices must have gone up since I last bought one. I bought one for only $20 about 4 years ago.
__________________
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)
Reply With Quote
  #9  
Old 01-21-2007, 09:55 PM
Registered User
 
Join Date: Jan 2002
Posts: 18,350
There are cheaper suppliers. Ebay for instance.
__________________
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
Reply With Quote
  #10  
Old 01-21-2007, 11:58 PM
JimmyL's Avatar
Rogue T Intolerant!!!
 
Join Date: May 2004
Location: Sunnyvale, Texas (DFW)
Posts: 9,675
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......
__________________
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
Reply With Quote
  #11  
Old 01-22-2007, 09:44 AM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
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

Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 11:53 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page