Go Back  MBWorld.org Forums > Mercedes-Benz Sedans > E-Class (W211)
Please Help Car Won't Start >

Please Help Car Won't Start

E-Class (W211) 2003-2009

Please Help Car Won't Start

Old 05-04-2015, 03:12 AM
Thread Starter
Join Date: May 2015
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Exclamation Please Help Car Won't Start

Hi i am new to the forums and i am in desperate need, sorry if i had posted this thread at the wrong location.

I own a W211 2003 E500 Sport Sedan with 145k miles

My car all of a sudden doesn't start anymore. Before we assume anything. I know for fact it is not the Cam Shaft Sensor or Crank Shaft Sensor because i have already changed them before my car stopped working. I have checked my fuel pump and they seem/look fine to me (Not to sure what to look for though). I am the second owner for this car and i remember before i bought this car i had 3 codes which were gear ratio, mass air flow, and O2 sensor. I don't know remember the exact code but i can always check again. I had an exhaust leak that i fixed already. My transmission has been slipping because of the gear ratio, so i did a ATF change. I am not sure if transmission slipping has anything to do with the car not starting but i just wanted to inform you guys as much details as possible.

Well basically i was driving from my house to Gary to pick up a E63 bumper which was like a 30 mile drive. On the way there my car was smooth had no problems but on the way back the car felt weird/different. Like when i press the gas pedal it felt kinda laggy like i was pressing the gas pedal but it didn't want to go. The only way the car went is if i press the gas pedal further almost like flooring it. I drove to a restaurant to grab some lunch which was like a 45 minute gap. Then when i went back to my car and cranked it, the car started but the car was shaking pretty crazy. I never felt it shake like that before and all of a sudden it shut down on me. I started the car again and it still shook but this time it the car shut down immediately. After that my car never started anymore. It would crank but it wouldn't start so i had to tow it.

I know it is not the Cam Shaft Sensor, Crank Shaft Sensor, Battery, Starter, Alternator, or fuel pump(Not to sure about fuel pump though)

The last thing i want to do is take it to a dealer

Please help what do you guys think? What should i do?
Benitsubasa is offline  
Old 05-04-2015, 05:11 AM
Super Member
optimusprime m1's Avatar
Join Date: Jan 2015
Posts: 741
Received 29 Likes on 29 Posts
W124 260E

Try a spark plug tester ,to see if its electrical .Then remove the fuel pipe that comes to the fuel distributor. Mind you do it with engine off and keys out. Also wathch out for fuel escaping .Can you here the pump running as you switch it on ?. Then it may be the sensor if you have spark and fuel.
optimusprime m1 is offline  
Old 05-04-2015, 08:21 AM
MBWorld Fanatic!
Join Date: Oct 2011
Location: Athens, GA USA
Posts: 1,018
Likes: 0
Received 33 Likes on 32 Posts
2011 E63, 2011 Hyundai Genesis 4.6 v8, 2013 GMC Denali XL, 1965 Ford Mustang, 2005 Merc. E500
Get a star diagnostic done at an indie shop or dealer. In the long run you will save money. Trying to guess what is wrong with a complicated car like your Mercedes cost more time and money.
homeofstone is offline  
Old 05-04-2015, 09:00 AM
MBWorld Fanatic!
vettdvr's Avatar
Join Date: Mar 2006
Location: Louisiana
Posts: 3,254
Likes: 0
Received 4 Likes on 4 Posts
03 E500 and Corvette
Assume nothing. Just because you installed a CPS doesn't mean it works, connected solidly, and you will have to run codes to find more details.
vettdvr is offline  
Old 05-04-2015, 04:21 PM
MBWorld Fanatic!
Join Date: Apr 2015
Location: dmv
Posts: 1,486
Received 34 Likes on 33 Posts
2009 E550 2000 Honda civic mash n' go
Fuel pump is my guess, again thats a guess. Or you could have a clogged egr valve but that's a far stretch. You wont know anything until you run codes, and still then you may not know. If you know how to use a multimeter, remove your back seat, take the covers off the fuel sending units, check to see that the fuel pump is getting 12 volts during cranking, if in fact they are, your fuel pumps are faulty. Thats one way to rule out a fuel pump. You could take it too a dealer, 1hr checkout fee, buy your parts from a independent dealer and get it done at a indy shop like someone above said. You could also jump your fuel pump relay to make sure its not a fuel pump issue as well.
cmriv is offline  
Old 05-08-2015, 09:35 PM
Wodeshed's Avatar
Join Date: Sep 2014
Location: Sarasota area, FL and Holden Beach, NC
Posts: 174
Received 4 Likes on 3 Posts
Current: 2007 E350 P1 and P2
Did you replace the sensors with genuine Bosch parts? Lots of problems with cheapo alternatives.
Wodeshed is offline  
Old 05-08-2015, 09:38 PM
Wodeshed's Avatar
Join Date: Sep 2014
Location: Sarasota area, FL and Holden Beach, NC
Posts: 174
Received 4 Likes on 3 Posts
Current: 2007 E350 P1 and P2
Oh, also, I had a problem like the one you describe when I knocked a vacuum line off the back side of the intake manifold on my old CLK. It was just forward of the MAF. Turns out there were two vacuum connectors there, and I had only plugged one of them back. Once I straightened that out it purred like a kitten.
Wodeshed is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Please Help Car Won't Start

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: