1972 300SEL 4.5 fuse #1 dead short, help! - Mercedes-Benz Forum

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 12-17-2011, 09:59 PM Thread Starter
BenzWorld Member
 
Date registered: Aug 2006
Vehicle: 1972 300SEL 4.5, 1971 Citroen DS21, 1995 Jaguar XJS
Location: LA, CA
Posts: 71
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
1972 300SEL 4.5 fuse #1 dead short, help!

Hi,

Maybe someone can help with this weird electrical problem. OR I need a wiring diagram... can someone send??

Fuse #1 blows instantly when installed, so there is a dead short in #1 circuit (interior lights, clock, cigar lighter etc)

hazards only energize when light switch is in park or headlight on positions... and then only flash once or twice. turn signal flasher is bad but signals flash with a new flasher installed..

when light switch is turned to park or headlights, the right side turn signal comes on (and the dash indicator for it)

I think there's a short between the right side blinker and the parking light circuit, but I don't know where...

Any idea where I should look first? Don't want to get the inductive short finder tool, but I will if that is the only way...

thanks!

Joe
LA,CA
tcb323 is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 12-21-2011, 04:59 AM
BenzWorld Elite
 
Grubeguy's Avatar
 
Date registered: Jan 2006
Vehicle: 73 280SE 4.5, 71 300SEL, 03 BMW Z4, 72 Fiat 850, 80 Triumph TR7, 85 Porsche 911
Location: DC Area
Posts: 2,143
Mentioned: 1 Post(s)
Quoted: 107 Post(s)
Send a message via MSN to Grubeguy Send a message via Yahoo to Grubeguy
Ugh, you've got some wires crossed somewhere. I hate to be less than helpful, but look through the loom for wires fused together, or someone's attempt at rewiring stuff.

See the online resources portion of this forum - there's a wiring diagram posted for the 280SE 4.5. Aside from the length and trim of your car and a 280, there's no difference electrically.
Grubeguy is offline  
post #3 of 3 (permalink) Old 12-21-2011, 02:38 PM Thread Starter
BenzWorld Member
 
Date registered: Aug 2006
Vehicle: 1972 300SEL 4.5, 1971 Citroen DS21, 1995 Jaguar XJS
Location: LA, CA
Posts: 71
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
Thanks Grubeguy. found the wiring diagram. I'll post results.

Last edited by tcb323; 12-21-2011 at 04:17 PM.
tcb323 is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > General Mercedes-Benz Forums > Vintage Mercedes-Benz

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Topic Author Forum Replies Last Post
1972 300SEL 4.5 full restoration ninomb Vintage Mercedes-Benz 13 04-09-2011 05:53 PM
1972 300SEL 4.5 millerlang Vintage Mercedes-Benz 9 05-22-2010 09:15 AM
FS- 1972 300sel macz100 For Sale/Wanted/Trade/Giveaway 10 02-03-2010 10:37 AM
FS/T: 1972 300SEL Sam Hamm For Sale/Wanted/Trade/Giveaway 2 04-10-2009 08:12 PM

Posting Rules  
You may post new threads
You may 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

 

Title goes here

close
video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome