Parts Catalog Accessories Catalog Tech Info Tech Forums
 
  Search our site:    
 Cart  | Project List | Order Status | Help    


Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 12-24-2005, 12:08 AM
Registered User
 
Join Date: Sep 2005
Location: Austin, TX
Posts: 41
Overload relay location???? 83 300sd

Anyone know where to find the overloard relay on an 83 300SD?

Thank you in advance

Rick
Reply With Quote
  #2  
Old 12-24-2005, 12:16 AM
wbain5280's Avatar
Registered User
 
Join Date: May 2001
Location: Northern Va.
Posts: 3,386
It's not an overloard relay, it's an overvoltage protection relay. It's function is the blow the fuse(s) on top if the supply voltage exceeds 22 volts thereby protecting the ABS and ECU computers.

It's located between the two firewalls and has either one or two fuses on top.
__________________
Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.
Reply With Quote
  #3  
Old 12-24-2005, 12:23 AM
Registered User
 
Join Date: Sep 2005
Location: Austin, TX
Posts: 41
Thank you

warren:

Thank you kindly for your response....I will take a look in the morning. Is it between the fire walls over by the battery?

Rick
Reply With Quote
  #4  
Old 12-24-2005, 01:11 AM
jbaj007's Avatar
Registered User
 
Join Date: Jun 2001
Location: Santa Monica, CA
Posts: 2,053
In the 300SD, it's in the fuse box: rear, second row from back, towards the cars midline. Red/orange fuse holder, red fuse (should be red at least, 10A). Can't miss it.
__________________
The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)
Reply With Quote
  #5  
Old 12-24-2005, 11:01 AM
Registered User
 
Join Date: Sep 2005
Location: Austin, TX
Posts: 41
NEED more help

I looked and looked and looked and can't find it.

I didn't see it in the fuse box....5 ice cube relays....2 black box relays.

I looked between the two fire walls and didn't see it.

I even looked under the driver and passenger kick panel and nothing.

Anyone have any clues?

The car was in bad shape when I got it and I am curious if perhaps one of the "ice cube" relays in the fuse box shouldn't be there. Anyone have a diagram or a picture that would help me out?

Its an 83 300SD.

Rick
Reply With Quote
  #6  
Old 12-24-2005, 11:18 PM
carson356
Guest
 
Posts: n/a
Quote:
Originally Posted by rshafferdc
I looked and looked and looked and can't find it.

I didn't see it in the fuse box....5 ice cube relays....2 black box relays.

I looked between the two fire walls and didn't see it.

I even looked under the driver and passenger kick panel and nothing.

Anyone have any clues?

The car was in bad shape when I got it and I am curious if perhaps one of the "ice cube" relays in the fuse box shouldn't be there. Anyone have a diagram or a picture that would help me out?

Its an 83 300SD.

Rick
i don't believe the 1983 300SD has an ov relay. the 83 i had didn't
Reply With Quote
  #7  
Old 12-25-2005, 12:00 AM
whunter's Avatar
Moderator
 
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 16,990
FastLane

PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1983 Mercedes Benz 300SD
Part: Overload Relay
Note:
Year: 1982-
P2056-18124 Overload Relay IN STOCK $67.97

http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1OI103FLR1OX1F53T2&year=1983&make=MB&model=300-SD-002&category=All&part=Overload+Relay


On the W126 it is in the false bulkhead (trough), between vehicle center and brake master cylinder.
Attached Thumbnails
Overload relay location???? 83 300sd-overload_relay.jpg   Overload relay location???? 83 300sd-overload-relay.jpg  
__________________
ASE Master Mechanic
asemastermechanic@juno.com

Noise Vibration and Harshness (NVH), Dynamometer, R&D, Heat exchanger durability development/test, HV-A/C Climate Control Prototype Development, Prototype Vehicle Development, Technical Quality Auditor, Automotive Technical Writer, Prototype Build, Prototype Durability, Prototype vehicle instrumentation.

1973 300D
1973 309D
1978 280SE
1980 240D
1983 300D
1984 190D

Last edited by whunter; 12-25-2005 at 12:53 AM.
Reply With Quote
  #8  
Old 12-25-2005, 12:06 AM
JamesDean's Avatar
Electrical Engineer
 
Join Date: Apr 2005
Location: NE Ohio
Posts: 4,359
this is my fuse box legend from my 82-SD...i dno what might have changed from 82-83....I've added 2 relays for my keyless entry. (horn+flashers (city lights))

overload protection is #10 (8a)



kris
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

82 300SD 145k
82 300SD 265k
87 420SEL 230k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k
Reply With Quote
  #9  
Old 12-25-2005, 01:25 AM
carson356
Guest
 
Posts: n/a
Quote:
Originally Posted by whunter
PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1983 Mercedes Benz 300SD
Part: Overload Relay
Note:
Year: 1982-
P2056-18124 Overload Relay IN STOCK $67.97

http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1OI103FLR1OX1F53T2&year=1983&make=MB&model=300-SD-002&category=All&part=Overload+Relay


On the W126 it is in the false bulkhead (trough), between vehicle center and brake master cylinder.

if you do a search on fastlane for the relay number 201-540-08-45 you get the relay number on fastlane as
P2056-18124, when i do a search on the mercedes epc it says the 201-540-08-45 was only used after model year 1985 (see picture below) so as i said the 1983 300SD 126.120 does not have the OV relay like the one you posted above, if it did it would be in the fuse box with the other relays, the fastlane catalog is mistaken, i use one of the same suppliers that fastlane uses, (worldpac) they also show in their system and that it applies to the 126.120, they are also mistaken. the mercedes EPC is the most accurate source for cross reference of part numbers, so i will have to go by what they say.

Last edited by carson356; 02-05-2006 at 02:31 PM.
Reply With Quote
  #10  
Old 12-25-2005, 08:00 AM
Registered User
 
Join Date: Sep 2005
Location: Austin, TX
Posts: 41
Thank you.....problem resolved

Thank you guys..........I rechecked again just to be sure and I am confident the bigger...better overload protection relay is NOT present on my car. I even vacuumed out the firewall just to be sure the relay wasn't hiding!
Reply With Quote
  #11  
Old 12-25-2005, 09:48 AM
whunter's Avatar
Moderator
 
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 16,990
Relax, it is Christmas.

Quote:
Originally Posted by carson356
if you do a search on fastlane for the relay number 201-540-08-45 you get the relay number on fastlane as
P2056-18124, when i do a search on the Mercedes EPC it says the 201-540-08-45 was only used after model year 1985 (see picture below) so as i said the 1983 300SD 126.120 does not have the OVP relay like the one you posted above, if it did it would be in the fuse box with the other relays, the fastlane catalog is mistaken, i use one of the same suppliers that fastlane uses, (worldpac) they also show in their system and that it applies to the 126.120, they are also mistaken. the Mercedes EPC is the most accurate source for cross reference of part numbers, so i will have to go by what they say.
Relax, it is Christmas.
After a good nights sleep, I do not recall seeing it before 1985, that was the year of change, and last year of OM617 W126 300SD production.
The OVP is on the 1985 300SD; I walked out to my daily driver (1985 300SD) and checked.
Reply With Quote
  #12  
Old 12-25-2005, 02:40 PM
jbaj007's Avatar
Registered User
 
Join Date: Jun 2001
Location: Santa Monica, CA
Posts: 2,053
OVP is also in my 1984 300SD, in fuse box.
__________________
The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)
Reply With Quote
  #13  
Old 12-25-2005, 04:22 PM
whunter's Avatar
Moderator
 
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 16,990
Thumbs up Picture please

Quote:
Originally Posted by jbaj007
OVP is also in my 1984 300SD, in fuse box.
Picture please.
Thank you.
Reply With Quote
  #14  
Old 12-25-2005, 06:02 PM
carson356
Guest
 
Posts: n/a
Quote:
Originally Posted by jbaj007
OVP is also in my 1984 300SD, in fuse box.
what month and year is your car? it may be late 1984 which is actually 1985 model year
Reply With Quote
  #15  
Old 12-25-2005, 07:04 PM
jbaj007's Avatar
Registered User
 
Join Date: Jun 2001
Location: Santa Monica, CA
Posts: 2,053
Here you go.

Mine is a 1984 300SD; build date November, 1983.
Attached Thumbnails
Overload relay location???? 83 300sd-dcp_0631-small-.jpg  
__________________
The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)
Reply With Quote
Old 12-25-2005, 07:04 PM
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 08:46 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page