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 09-15-2008, 03:43 PM
Registered User
 
Join Date: Apr 2003
Posts: 27
Code readers

Does anyone know where you can buy a code reader for my 380sl without taking out a second mortgage on my house. Also do you know what code do they use is it a mercedes only code. Thanks

Reply With Quote
  #2  
Old 09-16-2008, 10:43 AM
RichardM98's Avatar
Registered User
 
Join Date: Oct 2007
Location: SoCal
Posts: 651
If your car is 1996 or newer you can get an OBD II scanner from Harbor Freight. Check here:

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=94169

It often goes on sale on the their website for $39. If you print a copy of the online ad and take to the local store they usually honor that price. Regular price is $59 but maybe it's gone up in the last year.

Their are a large number of codes. Those that begin with a zero are generic for all cars. Those that begin with a 1 are model specific (ie Mercedes). Assuming your CEL is not on you may have pending codes. Use the scanner to clear them and wait to see if they return. If they do investigate.

Knowing the code(s) and their description often is not enough. Post any codes you have out here for help interpreting them. Good luck.
Reply With Quote
  #3  
Old 09-16-2008, 05:07 PM
Registered User
 
Join Date: Apr 2003
Posts: 27
Mine is a 1984 380sl with the round plug. I have talked to several mechanics and none have any idea what we are dealing with. Its too old to be OB11 and maybe too old for OB1. I am about 90 miles from from the nearest dealer and don't want to go there anyhow since they don't want to work on anything over 10 years old unless they sold it. I had a good mechanic but he retired and sold his buisness to somw people from the mideast and I have not had very good luck with them. The last time I went to them they charged an arm and a leg and still did not solve the problem.
Reply With Quote
  #4  
Old 09-16-2008, 05:28 PM
Registered User
 
Join Date: Aug 2003
Location: Phoenix
Posts: 3,726
The Baum code reader book says about the round 9 pin diagnostic connector -

9-Pole Diagnostic Connector (1980-94)
The 9-pole Diagnostic Connector is used on earlier model vehicles. It can display
on-off ratio fault codes (1986 and later), RPM and Lambda sensor values. Various
on-off ratio Meters are available that provide access to this type of diagnostic
connector.

In other words your car does not have meaningful code reading ability. Even later 107s were primitive. You need a 129 body to have a worthwhile DIY code reading function.
Reply With Quote
  #5  
Old 09-16-2008, 09:44 PM
Registered User
 
Join Date: Apr 2003
Posts: 27
Code reader

Thanks I was afraid of that
Reply With Quote
  #6  
Old 09-17-2008, 06:02 PM
Super Moderator
 
Join Date: Apr 2000
Location: Falls Church, VA
Posts: 5,316
The only important piece of information from the connector is the duty cycle, which is on Pin 3. You can use a $30 meter with a duty cycle, or and old-style dwell meter to measure it. Tons of posts on how to do it if you do a Search.

What is the car doing or not doing that makes you want to read codes?
__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
Reply With Quote
  #7  
Old 09-18-2008, 09:14 AM
Moderator
 
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Best reply! mine as well..............that car doesn't have any code reading ability!

"What is the car doing or not doing that makes you want to read codes? "
__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator
Reply With Quote
  #8  
Old 09-19-2008, 12:11 PM
Registered User
 
Join Date: Apr 2003
Posts: 27
When you shift from reverse to drive or drive to reverse the engine goes to 1200 Rpm and it takes about 10 seconds before it comes down to normal. It means that you have to wait in neutral to shift or tear something up
Reply With Quote
  #9  
Old 09-19-2008, 01:56 PM
Moderator
 
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
That would be an issue with the idle valve OR idle control computer.

Exchange of parts would be you best course of action.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator
Reply With Quote
  #10  
Old 09-19-2008, 02:13 PM
Registered User
 
Join Date: Aug 2006
Posts: 141
Code reader

cclake;
As stated there is no "code" reading capability on your car.
In response to many complaints of harsh engagement from reverse to drive and vice versa Mercedes Benz incorporated a delayed engagement factor in the transmissions produced in the mid eighties. Use a stopwatch and time the engagement up to five seconds is typical.
Mike Freeman
Reply With Quote
  #11  
Old 09-19-2008, 04:58 PM
Super Moderator
 
Join Date: Apr 2000
Location: Falls Church, VA
Posts: 5,316
There are literally dozens of posts on how to test the idle control system. Please do a search.
__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
Reply With Quote
  #12  
Old 09-19-2008, 05:30 PM
Registered User
 
Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,804
This Forum has had the advantage of time [ 10 years, I think] to accumulate so many post that I would bet it has the Largest Tech Data base in it's Archieves in the World.
So, we can not over-stress using the SEARCH FEATURE b/c we know the info is there ...and many of us have written so many repeat test procedures and remedies to the same repeated problems that we tend to not answer them anymore, knowing the same info is a click away.. Other forums WISH they had such a data base !!!!.....use it.
I just can't type OVP anymore......

Search and you Shall Find...........is is all in there , many times over
__________________
A Dalton
Reply With Quote
  #13  
Old 09-19-2008, 07:14 PM
Registered User
 
Join Date: Apr 2003
Posts: 27
Idle control

Thanks again I have been thru about 4 or 5 pages of trouble shooting Using both the Mercedes manual and mercedes disc. They are different and can only see that the control box is slow applying voltage to the idle control valve. I was hoping to avoid just replacing parts without knowing for sure what is wrong. Acode reader if it had worked would have been offset by the cost of just the idle control valve,and it would have been nice to have. Once again thanks again I will just start changing parts when the budget allows it
Reply With Quote
  #14  
Old 09-19-2008, 09:52 PM
Registered User
 
Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,804
<<9-Pole Diagnostic Connector (1980-94)
The 9-pole Diagnostic Connector is used on earlier model vehicles. It can display
on-off ratio fault codes (1986 and later), RPM and Lambda sensor values. Various
on-off ratio Meters are available that provide access to this type of diagnostic
connector. Call Baum Tools at 800-848-6657 or 941-927-1414 for more information
on these meters.>>

You can get a nice DMM at Sears w/duty cycle for $20...
__________________
A Dalton
Reply With Quote
  #15  
Old 09-19-2008, 10:10 PM
Registered User
 
Join Date: Aug 2003
Location: Phoenix
Posts: 3,726
Quote:
Originally Posted by cclake View Post
Once again thanks again I will just start changing parts when the budget allows it
This is the compellng argument for a 1990s MB, especially a late ODBI, like the LH 119s and the HFM 104s. And furthermore I'd say (seeing if I can start a fight here) for the DIYer reading fault codes late OBDI is actually better than OBDII.

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 04:41 AM.


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