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 ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 07-29-2003, 07:30 PM
Registered User
 
Join Date: Mar 2003
Location: franklin,mass
Posts: 211
speedo

Gentlmen, I have done a search and have looked at countless pages and can find nothing that will tell me why, in my 83 300sd, the speedo reads faster then I'm going, the faster I go, the more it is off,it reads 75, i'm going around 60, more or less. If anyone has any ideas, I would love to hear them, thank you very much steve
Reply With Quote
  #2  
Old 07-30-2003, 02:40 PM
Registered User
 
Join Date: Jan 2003
Location: Near Detroit
Posts: 19
You could, of course, have some mismatched components somewhere driving it with the wrong ratio. Or you could have a worn speedo mechanism, do a search on google for "2002 speedo repair" and find an article written for BMWs and see if it could describe what you've got going on. It pointed the way for me to fix my speedo!
Reply With Quote
  #3  
Old 08-01-2003, 02:31 PM
Registered User
 
Join Date: Mar 2003
Location: franklin,mass
Posts: 211
thank you Don XVI for your response, I'll try that. steve
Reply With Quote
  #4  
Old 08-01-2003, 02:34 PM
I told you so!
 
Join Date: Jun 2002
Location: Motor City, MI
Posts: 2,791
It happened to me once on a 91 Mercury. It turned out to be a corroded and worn out speed sensor. No codes were set. And yes, the speedometer was showing faster than I was going. It showed 90 when I was doing 70.
__________________
95 E320 Cabriolet, 140K
Reply With Quote
  #5  
Old 08-06-2003, 05:36 AM
Registered User
 
Join Date: Apr 2003
Location: Vancouver, Canada
Posts: 28
Re: fast speedo reading problem solved?

Hi Steve,

I was just wondering if you ever got around to solving this problem. I have an '85 190E 2.3 8V and you've basically described my problem right on the money.

hope to hear from you ......... thanks!


Quote:
Originally posted by stevelewis
Gentlmen, I have done a search and have looked at countless pages and can find nothing that will tell me why, in my 83 300sd, the speedo reads faster then I'm going, the faster I go, the more it is off,it reads 75, i'm going around 60, more or less. If anyone has any ideas, I would love to hear them, thank you very much steve
Reply With Quote
  #6  
Old 08-08-2003, 01:56 PM
tigeroscar1's Avatar
Registered User
 
Join Date: Aug 2003
Location: las vegas
Posts: 13
the cable may need to be replaced or

it might be happen if you changed tire size from the factory ones. This happens because the computer is coded for whatever size is put on the car at the factory. Just take it in and have it re-shot for the new tire size if you did change the tires/rims out.
Reply With Quote
  #7  
Old 09-06-2003, 03:48 PM
Registered User
 
Join Date: Mar 2003
Location: franklin,mass
Posts: 211
now the speedo is all over the place, at 80 it reads 40 , at 40 it reads 0 . then it goes back to 75 at 80, I'm realy confused, but wath else is new? steve
Reply With Quote
  #8  
Old 09-07-2003, 10:08 PM
Registered User
 
Join Date: Mar 2003
Location: franklin,mass
Posts: 211
Guys, after more reading,I know its the speedo or the pick-up in the tail shaft.So I figured to look at both these this week. I took big blue out to 495 interstate to clean out the motor. About 10 minutes at 80 or so does the trick. Low and behold, does't the speedo start to work. Now it seems fine, for how long,I can only guess. I guess I should check it anyway, but I'll wait. steve
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 09:30 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page