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

LinkBack Thread Tools Display Modes
Old 07-20-2005, 09:23 AM
skiier3_9's Avatar
Registered User
Join Date: Jan 2005
Location: Minnesota
Posts: 975
Brake pad wear indicator light troubles

In my 94 w124 e320 I removed, cleaned, and painted all of my calipers last week. After re-installation the brake pad wear indicator light is on. Last night I attempted to trouble shoot the problem by unplugging all the sensors at the connection on the caliper. To my dismay the light did not go away with all of the sensors disconnected. I found the cause of the light to be the connector that bolts to the (front only) calipers. Without the connectors bolted into place the light is off. As soon as the connector is secured (ie. touching the caliper) the light comes on. Upon further examination it appears that when the connector touches the caliper the light comes on. Can someone tell me how this circuit is suppose to function? Is there suppose to be an insulation washer between the connector and the caliper? It only seems to be affecting the front calipers at the moment.


Reply With Quote
Old 07-20-2005, 09:48 AM
Ali Al-Chalabi's Avatar
Senior Member
Join Date: Nov 2000
Location: Knoxville, TN
Posts: 1,837
Whenever any part of the sensor wire circuit is grounded to the vehicle, it completes the circuit and turns the light on. From what you describe, it seems like the connector is completing the circuit to ground and is your problem.
Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record
Reply With Quote
Old 07-20-2005, 10:42 AM
skiier3_9's Avatar
Registered User
Join Date: Jan 2005
Location: Minnesota
Posts: 975
So is there suppose to be a insulating washer between the connector and the caliper. The part i'm talking about is pictured here:
Attached Thumbnails
Brake pad wear indicator light troubles-untitled.jpg  
Reply With Quote
Old 07-20-2005, 05:03 PM
skiier3_9's Avatar
Registered User
Join Date: Jan 2005
Location: Minnesota
Posts: 975
Any ideas? I'm confused as I didn't think that the retaining connector touching the caliper was a problem.

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Question about brake pad wear sensors Mercedes Guy Tech Help 3 05-29-2005 10:56 AM
Rookie does first C280 brake pad job!!! clankford Tech Help 30 03-14-2005 07:47 AM
Front Brake pad outside wear only? Fireice Tech Help 7 01-27-2005 12:47 PM
Brake Pad Wear Light TROVERMAN Tech Help 3 01-22-2004 04:13 PM
The Brake Pad Debate -- the Ignored Angle EricSilver Tech Help 42 07-17-2003 05:33 PM

All times are GMT -4. The time now is 07:33 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page