car dies , engine dies,
Thread Starter
Newbie
Joined: Sep 2014
Posts: 5
Likes: 0
mbz clk 320 1999
car dies , engine dies,
Was running on freeway, and suddenly the motot dies, puleed off the emergency road, and called aaa, tech came told me crank engine tried 3x wont start, told me I have no gas, so he put in a gallon and off I go to the gas station, gauge fuel is at half full, so filled up my tank and 8 gals was pumped in gauge is at full point, run the car for 5 days, and when the needle came to 1/3 tank motor dies again, put gas in again 9+gals put in start driving again week later did the same thing, so now I keep the tank full every time, I dont know what the problem is,
Super Member
Joined: Mar 2005
Posts: 932
Likes: 38
From: North of Boston
I would say that you either have a clogged fuel filter (stops gas...when you sit, it dissolves clog and then allows more gas to pass through) or bad fuel pump...usually tell by measuring pressure at fuel rails at engine.
I had similar issues and it was the fuel pump.
I had similar issues and it was the fuel pump.
Thread Starter
Newbie
Joined: Sep 2014
Posts: 5
Likes: 0
mbz clk 320 1999
Changed fuel filter, checked pressure at fuel rail all ok, car wont start now
Thread Starter
Newbie
Joined: Sep 2014
Posts: 5
Likes: 0
mbz clk 320 1999
If it was bad fuel pump why would I be able to drive the car with full tank and then dies when the tank is half full, if it was the pump then I would not even be able to drive the car
Super Member
Joined: Mar 2005
Posts: 932
Likes: 38
From: North of Boston
I'll just tell you what happened to me...same issues...going down highway...stalled going over 60mph...got it restarted...drove a few days...same...no start...tow to independent...said to change pump..I did and have not had a issue for 2 years.
Have you checked care for any bad codes...our model is notorious for bad CPS when hot engine.
Do a search on this forum for both CPS and fuel pump...
Have you checked care for any bad codes...our model is notorious for bad CPS when hot engine.
Do a search on this forum for both CPS and fuel pump...
MBWorld Fanatic!
Joined: Oct 2012
Posts: 1,427
Likes: 100
From: Florida
2002 CLK 55 AMG cabriolet Eurocharged
The sending unit is giving false reading or the gage is bad.
My Diesel W124 was notorious for this symptom. Always kept the tank full.
I read somewhere the tank is split and has an equalization system, VIP320 corrected this on an old post.
Gator
My Diesel W124 was notorious for this symptom. Always kept the tank full.
I read somewhere the tank is split and has an equalization system, VIP320 corrected this on an old post.
Gator
Last edited by GatorMB; Sep 10, 2014 at 11:11 AM. Reason: added content
Thread Starter
Newbie
Joined: Sep 2014
Posts: 5
Likes: 0
mbz clk 320 1999
Thanks cindy will try to check if pump is bad, or cps, gator idont think the gauge is bad, cuz, when it read half tank and went dead, I filled the tank and gas put in was 8 gallons exactly half the tank that the gauge says, some says it has to do with immobilizer, cuz my car wont start, it would crank but wont start at half tank, I dont know what else to diagnose.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
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
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Thread Starter
Newbie
Joined: Sep 2014
Posts: 5
Likes: 0
mbz clk 320 1999
Gator, prior to this car dying, car got towed with the alarm on, in the towyard until battery died, when I got my car back they jumped it and was able to drive, this engine cutoff with half tank gas occurred 3 x after this, one mech said the alarm tripped the cutoff engine function and has not been reset by my key, dont know if its true but my car cranks but wont start, not unless I put gas way past half tank,
