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 > Diesel Discussion

LinkBack Thread Tools Display Modes
Old 11-17-2005, 09:56 PM
Registered User
Join Date: Nov 2005
Posts: 6
tach problem 1985 300d turbo

I have thrown everything at this problem and still can not solve it, a quick run down of what has been done:
replaced cluster
replaced overload protection relay & fuse
traced all wiring and it is "hot"
checked KLIMA and found no issues
The only thing left must be the tach sensor located on the bell housing but I have been unable to find it and I don't know what it looks like either! Any help on this would be appreciated and also any thoughts of other problems!
Thanks in advance!!!
Reply With Quote
Old 11-18-2005, 02:21 AM
Registered User
Join Date: Jul 2005
Posts: 119
the rpm relay,is the problem most of the is left side of the wheelwell under the hood half way down.It is in front of the fuse box it is round and about 1-2 inches high.i wich i knew on how to post pictures to show you,but you will find it. Harald
Reply With Quote
Old 11-18-2005, 08:16 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153

The flywheel sensor produces a A/C voltage signal to the EGR computer that is under the passenger outer kick panel.

You need to see if there is 4-6V A/C from that sensor to the EGR computer!
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


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 02:25 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