Crank Sensor
Thread Starter
Member
Joined: May 2007
Posts: 236
Likes: 0
From: stamford, CT
1993 Mercedes 300e 4-matic (m103 motor)
Crank Sensor
I have a feeling my crank sensor may be causing all my problems. What would happen if i unplugged it and tried to start the car and run it for a little while. (could i cause any damage?)
MBWorld Fanatic!
Joined: Dec 2006
Posts: 1,042
Likes: 1
From: Bellevue, NE
1995 E320 SE, 162,000 Miles (Sold) 2007 CLK350 Cabriolet 2014 ML550
Ok heres the deal it will run fine start up fine until runnign temp than it will just turn off. EVERY TIME it will turn off. 9/10 times it will start back up and run for 2 ro 3 minutes than completely die. Than it will crank but no start."
It sounds like a failing electronic part, to me. I think the crank sensor may be it. I've heard they fail when they warm up when they are starting to go bad. They only way to be sure without investing in testing equipment is to replace it and find out. But I would think it would set a code on the computer for sure.
Last edited by shdoug; Aug 4, 2007 at 06:38 PM.
Trending Topics
MBWorld Fanatic!
Joined: Dec 2006
Posts: 1,042
Likes: 1
From: Bellevue, NE
1995 E320 SE, 162,000 Miles (Sold) 2007 CLK350 Cabriolet 2014 ML550
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
MBWorld Fanatic!
Joined: Dec 2006
Posts: 1,042
Likes: 1
From: Bellevue, NE
1995 E320 SE, 162,000 Miles (Sold) 2007 CLK350 Cabriolet 2014 ML550
MBWorld Fanatic!
Joined: Dec 2006
Posts: 1,042
Likes: 1
From: Bellevue, NE
1995 E320 SE, 162,000 Miles (Sold) 2007 CLK350 Cabriolet 2014 ML550
MBWorld Fanatic!
Joined: Feb 2006
Posts: 1,325
Likes: 2
From: Seattle
1990 300ce
Maybe it's the crank position sensor... have you tried the fuel pump relay though?
Could also be your EZL (or "Ignition Control Module"). Have you tried searching/posting on Mercedesshop.com?
Could also be your EZL (or "Ignition Control Module"). Have you tried searching/posting on Mercedesshop.com?
Almost a Member!
Joined: Apr 2007
Posts: 55
Likes: 0
Not sure where you could find it, but a friend of mine told me of a tool called a "magic mushroom" that plugs into your diagnostic socket and the codes are read via LEDs. Other than that, your only other choice may be to go to the dealer, have them read the code, tell you whats wrong, then just refuse the repair. Come home, buy it online and repair it yourself. Just a suggestion.
Thread Starter
Member
Joined: May 2007
Posts: 236
Likes: 0
From: stamford, CT
1993 Mercedes 300e 4-matic (m103 motor)
I solved the problem the wire connecting the crank sensor to the EZL was badly worn, and shortign out when hot, new crank sensor and i was good to go.
MBWorld Fanatic!
Joined: Dec 2006
Posts: 1,042
Likes: 1
From: Bellevue, NE
1995 E320 SE, 162,000 Miles (Sold) 2007 CLK350 Cabriolet 2014 ML550
