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 05-11-2012, 02:16 AM
Stugist's Avatar
Weekend Wrencher
 
Join Date: Apr 2012
Location: Western Washington, USA
Posts: 118
Busted rheostat...now what?

Today seemed like a nice day, so I figured I'd pull my instrument cluster to figure out why my dash lights wouldn't work. Checked the leads, they were in surprisingly good condition; PCB leads were all intact; bulbs were still good. So I go to check the rhesostat to repair it (used the DIY article by tankowner), and lo-and-behold, I find: this:





The spring was sticking out when I took a look at it. Upon disassembly, it looks like this. Dunno how long it was like that, but I figured years of turning the dial arm against it out of the channel did it in. Safe to say it's pretty fargone to repair. Any ideas?

PS: Lost one of the two counter-springs in my carpet

__________________
- 1979 W123 240D 4-speed, 390k miles
Reply With Quote
  #2  
Old 05-11-2012, 02:25 AM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,996
solder a wire across the main terminals, and enjoy bright lights.
or, if you want to repair it to original condition, pull one from a different dash...
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
Reply With Quote
  #3  
Old 05-11-2012, 02:37 AM
Stugist's Avatar
Weekend Wrencher
 
Join Date: Apr 2012
Location: Western Washington, USA
Posts: 118
Across the main terminals on the rheostat unit, or just the leads and leave the unit off?
__________________
- 1979 W123 240D 4-speed, 390k miles
Reply With Quote
  #4  
Old 05-11-2012, 02:38 AM
Registered User
 
Join Date: May 2007
Location: Out in the Boonies of Hot, Dry, Dusty, Windy Nevada
Posts: 9,680
Hit your local PNP and grab a few. new they are quite pricy.

Charlie
__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
Reply With Quote
  #5  
Old 05-11-2012, 02:39 AM
Stugist's Avatar
Weekend Wrencher
 
Join Date: Apr 2012
Location: Western Washington, USA
Posts: 118
Quote:
Originally Posted by charmalu View Post
Hit your local PNP and grab a few. new they are quite pricy.

Charlie
Was actually looking to make my monthly run this weekend. Yay for new item on list!
__________________
- 1979 W123 240D 4-speed, 390k miles
Reply With Quote
  #6  
Old 05-11-2012, 02:42 AM
Registered User
 
Join Date: May 2007
Location: Out in the Boonies of Hot, Dry, Dusty, Windy Nevada
Posts: 9,680
Some solder a jumper wire across the pins with the rheostat removed. but then your lights are always on bright, w/o the ability to dim them.
I like to turn them down when my eyes are tird when Iam driving late at night.

Charlie
__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
Reply With Quote
  #7  
Old 05-11-2012, 02:48 AM
Registered User
 
Join Date: May 2007
Location: Out in the Boonies of Hot, Dry, Dusty, Windy Nevada
Posts: 9,680
If you come across the big red 4 way flasher switch, they are NLA. think that is also your turn sig dinker danker. may never need one, but always good to have some spares.

Charlie
__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
Reply With Quote
  #8  
Old 05-11-2012, 02:59 AM
Stugist's Avatar
Weekend Wrencher
 
Join Date: Apr 2012
Location: Western Washington, USA
Posts: 118
Quote:
Originally Posted by charmalu View Post
If you come across the big red 4 way flasher switch, they are NLA. think that is also your turn sig dinker danker. may never need one, but always good to have some spares.

Charlie
Thankfully, my flasher unit is okay. One of the first things I did when I got my car was inspect and clean it (blinkers wouldn't work). That's one of those "get it if it works/cheap" items on my PNP list.
__________________
- 1979 W123 240D 4-speed, 390k miles
Reply With Quote
  #9  
Old 05-11-2012, 10:10 AM
Registered User
 
Join Date: May 2007
Location: Out in the Boonies of Hot, Dry, Dusty, Windy Nevada
Posts: 9,680
Yeah, grab everything you can, the herd of 123`s is getting thined down. every one crushed is that many parts out of the inventory.

I even pulled 4 240D heater boxes from under the dash. that job is just time consuming. one of them is going in the 85 300D.

Charlie

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
Reply With Quote
Reply

Bookmarks


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 12:05 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, 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