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 > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-07-2004, 07:49 AM
Registered User
 
Join Date: Jan 2004
Location: houston
Posts: 51
300e Fuel Pump Relay Fuse

1990 300E

I know the location of fuel pump relay. On top of the relay there is a 10A fuse flused to the body of the relay. How do I remove the fuse to check if it is burnt or not?

THe car won't start. I added few ounces of gas on to carbureter or air intake. The car started and ran more 45 minutes till I turn-off the engine. In this way, I believe the ignition system is working. I thought that it may that residual pressure is not maintained once the care is turned off. Therefore, I replaced fuel accumulator, but the problem still exists. I am ruling fuel filter, because the car once started runs without any hic-cups.

Your help will be greatly appreciated

Reply With Quote
  #2  
Old 06-07-2004, 09:54 AM
csnow's Avatar
Registered User
 
Join Date: May 2002
Location: Mass
Posts: 1,127
That is the wrong relay. The OVP (Over Voltage Protection) relay is the one with the fuse on the top.
__________________
1986 300E 5-Speed 240k mi.
Reply With Quote
  #3  
Old 06-07-2004, 09:57 AM
Registered User
 
Join Date: Jan 2004
Location: houston
Posts: 51
300E FUEL PUMP RELAY

1990 300E

CSNOW,

I assume OVP relay is for the fuel pumps? Correct? So, how do you remove the fuse to check if it is burnt or not? Thanks
Reply With Quote
  #4  
Old 06-07-2004, 10:14 AM
csnow's Avatar
Registered User
 
Join Date: May 2002
Location: Mass
Posts: 1,127
No, fuel pump relay is a different beast nearby.
Looks like this:



Jump pins 7 & 8 to emulate relay on. If that works, relay is defective.


If you do want to check (or change) OVP fuse, the easiest way is to pull the entire relay out for close examination.
__________________
1986 300E 5-Speed 240k mi.
Reply With Quote
  #5  
Old 06-08-2004, 12:27 PM
Registered User
 
Join Date: Jan 2004
Location: houston
Posts: 51
FUEL PUMP RELAY 300E

1990 300E

My car does not have that relay. It has MAS (kilma) relay also used for fuel pumps besides AC. Where are the pins to jump &which ones?

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 10:55 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page