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Mercedes Benz Cranks over but will not start

I've been having problems with a slow start when the temp is cold. The last time my car started was on Christmas. Went out to start it two days later & it would not start. We've been trying to get it started since. It cranks over but wont start even with a jump. AAA came out one night & tried to start it without a jump & no luck. They added a little gas to the tank because it only had 1/4 of a tank. They got underneath & started banging on something & their diagnosis is fuel line freeze up because they believe its not getting gas. Any Suggestions? My ex sister in law gave me the vehicle 2 years ago & she told me she use to have trouble with Cold starts as well. She replaced the battery. Its a 1998 or 1999 Mercedes Benz ML320. I'm in Dayton Ohio & we have had record breaking Cold temps. thought I would add this info. My vehicle is also sitting in an open yard. No garage Nothing around it to block the cold/ air

Posted by Christine Hedrick on

  • 3 more comments 
  • Christine Hedrick Jan 02, 2018

    Last february I had it in the shop for a few weeks & put over $1500 into it . This is when it was loosing power & at one point wouldn't even go. Some sensors were replaced, tune up was done as well.

    ARESTI Jan 02, 2018

    Mrs Hendrick. I would like to know whether your vehicle is petrol or diesel.I am asking this because it is difficult for me to give a help -correct -if I don't know the engine type.

  • Christine Hedrick Jan 03, 2018

    It is Not a diesel

  • Christine Hedrick Jan 03, 2018

    I was just informed the battery was NOT replaced. So the battery is about 5 years old. The jumper cables we used may not be good enough to jump start it ??

    ARESTI Jan 04, 2018

    As I said from the begining. First of all check your battery to be strong enough to crank start the engine with no hesitation.When a battery is not so strong and especially such engine loaded with lots of electronics. Also regarding the jump er cables must not be cheap ones because do not have the strength to transfer the power from one battery to other and also get hot. Battery first check. Petrol is not getting iced in cold weather,therefore is not the fuel system the



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Try to heat up the oil pan from below, with a heater blower or a strong blow dryer from ur wife. that will help.
In Bavaria decades ago I used to do that, had it on a timer from 4 am to 6:30 when I had to go to work.
the car was also parked outside at -20Celsios.

Posted on Jan 03, 2018

Testimonial: "I was just informed last night the battery was NOT replaced. So the battery is about 5 years old. The jumper cables we used may not be good enough to jump start it. We were getting lights, radio etc But i did research & learned that these can still work even with a dead or almost dead battery. No problems what so ever with starting until it got cold. No hair dryers in this house unfortunately. Would putting an electric heater under it for awhile work? Thanks"



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I start with a question. Is your vehicle petrol or diesel? If is a diesel engine and you do have a cold start difficulties,be first check: a) your battery to be strong in power to manage a quick crank start. b) check your glow plugs whether are all working.( Even one glow plug does not work the engine can not start ).c) also check the Heat fuel system which normally is under the vehicle and close to the fuel tank( follow the fuel feeding lines to locate), d) also check whether the fuel pump ( electric ) located in the fuel tank is working. Always use a Diesel additive for Non-Frost. If is a Petrol engine again check to have a strong battery,also check whether the fuel pump in the tank is working. Also check whether you do have a clogged fuel filter.

Posted on Jan 02, 2018


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Roberta Smith

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SOURCE: Car turns over but won't start

one thing you need to remember.... as it gets colder (that's not cold yet) the battery gets less efficient as the demand for more power increases with the starter. were you able to start it by boosting it.... also what weight motor oil is in it. 30 to 50 weight oil turns to the consistency of molasses in cold weather.


Posted on Dec 18, 2008


  • 3 Answers

SOURCE: Engine turns over but won't start

A few suggestions...

If the battery terminals are clean (and they probably are, as you just replaced the battery), and the starter sounds like it's cranking, then there are usually two other things to check for. Gas and spark.
You need both to make the engine run. It's a little involved, though for most do-it-your-selfers, it's a-run- of-the-mill process. You have to see that fuel is getting to the cylinders by disconnecting a gas line and very briefly, repeat, very briefly, crank the engine. If any gas spurts out, you're getting gas to the cylinder. If not, there's a problem with the fuel system. Be sure there is no spark or open flame anywhere nearby. Take the car in to a shop.

The other most likely possibility is that your cylinders are getting no spark. You have to disconnect a spark plug wire and see if you are getting a spark. This is a little more involved. Get a fix-it manual for the in-depth procedure. When checking for a spark, make sure there is no open fuel lines around!

Posted on Jan 05, 2009


  • 46 Answers

SOURCE: car getting power, but won't turn over usually when it's cold out

do you have a test light??? you need to find out if power is getting to the starter. do the dash lights dim or go off when you try to start it??

Posted on Jan 14, 2009


  • 188 Answers

SOURCE: 97 Grand Cheeroke wont start in the morning when its cold out

Is it fuel injected or carb??? Try holding the gas pedal to the floor while turning the jeep over. This sometimes makes gas pump thru to the cylinders. Have you changed the fuel filter???? I know alot of jeeps have a fule filter with a bypass back to the tank, and sometimes the filter will be bypassing to the tank instead of the the motor. Check it out?????

Posted on Feb 04, 2009


  • 31 Answers

SOURCE: Engine cranks, but does not start

My suggestion to this is to check the basics. Check fuel pressure and check spark during crank. There is no quick answer for a no start condition. You always have to start by checking the basics. An engine with no spark or fuel will not start every time.

Posted on Feb 06, 2009

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