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 11-12-2004, 06:09 PM
Registered User
 
Join Date: Nov 2004
Posts: 13
Reading Computer codes

Was wondering if anyone can direct me to a fairly inexpensive device for reading computer codes? I have a 97 S420. Are any of these units compatible with other manufacturers/models. Thanks.

lee
Reply With Quote
  #2  
Old 11-12-2004, 08:27 PM
Registered User
 
Join Date: Mar 2004
Location: Phoenix, AZ
Posts: 114
I have a SnapOn EuroChecker, which is a code reading and re-setting tool. It comes with all cables and software needed for most 1990+ Audi, BMW, Mercedes, VW, Volvo, etc., cars.

Most 1992 MB cars (like mine) don't respond to this unit - it is intended to work on 95+ MB cars, and lists the S420 specifically. Due to the fact that it doesn't work on my car, I am selling it. (It was special order, so SnapOn won't take it back).

I paid over $600, and will sell it for $500 (all cables, books, carrying case, etc., in "as new" condition - only the MB cable has been opened, and used only once.

Send me a PM if interested.

-David
92 500sel (new tranny, so cool)
86 560sel (ratty, broken)
85 535i (nice, for sale $2900)
92 ZX11 (can't hear the radio, but what a sunroof...)
89 EX500 Superbike (Daytona ROC Champion - 94 and 96)
Reply With Quote
  #3  
Old 11-13-2004, 07:11 AM
KenP's Avatar
Registered User
 
Join Date: Dec 2002
Location: Southern New Hampshire
Posts: 418
Lee,
Starting in 1996, the W140's went to a digital powertrain management system. There's good news and bad news.
Good news: Your car has an OBD-II connector under the dash, near the steering column. This was mandated by US Federal DOT law and will provide you access to basic code data. Many simple scanners can read these DTCs and it will give you "pointers" to things that are wrong. You need to keep in mind that data obtained via the OBD-II system generally won't provide "the answer" if you're having a problem, but they will point you in the general direction. Just about any OBD-II scanner will work on this. I use an interface and software that runs on my laptop so I can see the data more easily and monitor some functions (like the O2 sensors) real time. Again, this system will give you basic code information. You'll need some experience to translate this information into knowledge. Run a search on OBD-II and I'm sure you'll find much on this.
The bad news: Mercedes kept all the "good stuff" for powertrain management in a manner more difficult and expensive to get to. There is a 38 pin connector under the hood on the passenger side. I won't go into this because you said "inexpensive", but there are scanners that can read this data stream (including engine, transmission, climate control, air bags, etc) but they aren't cheap or simple. I have a Snap-On MT2500 that works well for me.
Hope this helps.
__________________
KenP

1996 S500 W140 Coupe
Reply With Quote
  #4  
Old 11-13-2004, 11:02 AM
Registered User
 
Join Date: Feb 2003
Location: Ontario, Canada
Posts: 3,160
Here is another option for you: http://www.iequus.com/item.asp?cid=10&pid=3100
This is what I use.
It will cost you about $ 150.00 and will work on just about any vehicle produced in 1996 and newer.
__________________
2007 C 230 Sport.
Reply With Quote
  #5  
Old 11-13-2004, 12:59 PM
Registered User
 
Join Date: Nov 2004
Posts: 13
manny,

are you restricted with what you can do with this unit or will it read and allow you to reset most codes? thanks

lee
Reply With Quote
  #6  
Old 11-13-2004, 06:20 PM
Registered User
 
Join Date: Feb 2003
Location: Ontario, Canada
Posts: 3,160
You can read all the " basic ", or generic codes, as well as clear them.
As KenP pointed out correctly, it does not compare to anything an M-B dealer has, or some of the mega bucks units available elsewhere.
For basic troubleshooting ( which is what I bought it for ), it does a good job.
__________________
2007 C 230 Sport.
Reply With Quote
  #7  
Old 11-13-2004, 07:47 PM
nhodges's Avatar
Registered User
 
Join Date: Nov 2001
Location: Northern VA
Posts: 461
What, if anything, is available for reading and resetting codes on 94 and older OBD I Cars?
__________________
N. Hodges
1994 S350
1987 300 SDL (for sale)
Reply With Quote
  #8  
Old 11-13-2004, 10:39 PM
Registered User
 
Join Date: Nov 2004
Posts: 13
Thanks, Manny. I just wanted something that would kind of allow me to stay on top of things.

lee
Reply With Quote
  #9  
Old 11-13-2004, 11:02 PM
phantoms's Avatar
Senior Member
 
Join Date: May 2004
Location: Savannah, GA
Posts: 794
Quote:
Originally Posted by nhodges
What, if anything, is available for reading and resetting codes on 94 and older OBD I Cars?
You will not find much that is "inexpensive".
__________________
85 300CD
83 300TD
78 240D (daughter)
Reply With Quote
  #10  
Old 11-13-2004, 11:08 PM
Registered User
 
Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,799
OBD1 is flash code and can be gotten with a simple led/sw circuit....
Archieves.
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 05:28 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, 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