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 10-08-2010, 02:32 PM
Registered User
 
Join Date: Jun 2008
Location: New Jersey, USA
Posts: 47
1986 300SDL: CCU parts list?

Anyone have a parts list or schematic for an 86 300SDL CCU? I'm going to rebuild mine but some of the transistors' #'s are unreadable. I've already replaced all the capacitors in mine and am building a list of parts as I go but any help would be great, greatly appreciated. Thanks.
__________________
Tony
(Actually, a member since 2000)
Reply With Quote
  #2  
Old 10-11-2010, 03:43 PM
Registered User
 
Join Date: Jul 2008
Posts: 1,236
Personally, I wouldn't bother replacing the transistors unless you know they have a problem. When you did the caps, I hope you used hi temp (85c or higher) capacitors of a very good brand such as Panasonic or Nichicon. Regular cheap electrolytics will probably not last.

I've never studied the circuits inside the CCU up close, but I would not be surprised to learn that there are a lot of close tolerance parts in there, and possibly matched components. Replacing anything other than caps might be an exercise in futility, or worse.
__________________
-tp


1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS
1988 560SEL "Gunther"- 190K passes anything except a gas station
1997 S420 - 265k just bought it with a rebuilt trans. Lovely condition
Reply With Quote
  #3  
Old 10-11-2010, 09:17 PM
Registered User
 
Join Date: Jun 2008
Location: New Jersey, USA
Posts: 47
Quote:
Originally Posted by tinypanzer View Post
Personally, I wouldn't bother replacing the transistors unless you know they have a problem. When you did the caps, I hope you used hi temp (85c or higher) capacitors of a very good brand such as Panasonic or Nichicon. Regular cheap electrolytics will probably not last.
Yeah, I know about the caps. I haven't done the transistors yet but I am done with all the diodes.

Quote:
Originally Posted by tinypanzer View Post
I've never studied the circuits inside the CCU up close, but I would not be surprised to learn that there are a lot of close tolerance parts in there, and possibly matched components. Replacing anything other than caps might be an exercise in futility, or worse.
I've done circuit work before so it's not a major hassle for me. There are guys out there refurb'ing them so it's doable. Digikey and Mouser have all the parts so far and I have a few other places for hard to find parts. We'll see how it goes.
__________________
Tony
(Actually, a member since 2000)
Reply With Quote
  #4  
Old 10-12-2010, 04:32 PM
Hit Man X's Avatar
I LOVE BRUNETTES
 
Join Date: Sep 2004
Location: FUNKYTOWN
Posts: 9,077
Thumbs up

I have used Digikey in the past when rebuilding weird items... Servotronic steering in my 750iL for example.

As for a second gen climate head, just look around for a good used one. You can get it for less than $50 usually, surely your time is worth more than $50.
__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.
[/IMG]
Reply With Quote
  #5  
Old 10-12-2010, 05:12 PM
redassag00's Avatar
I like OM603's
 
Join Date: Nov 2005
Location: Katy, TX
Posts: 1,232
Quote:
Originally Posted by Hit Man X View Post
surely your time is worth more than $50.
__________________
91 350SD
15 F250 6.7L
97 FZJ80 LX450
Overseas Rides:
Santa Fe LWB 2.2L CRDi
GWM Steed 2.0 CRD
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 02:48 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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