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Old 10-01-2010, 01:04 PM   #16
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Have a quick look to see if you have air in the fuel line when cranking (When its struggling to start) May take 2 of you to do this. Easiest place is from the fuel filter to the pump under the plastic engine cover. Just bought a non starting 2002 ML270CDI which has had loads of major components change for poor starting and turned out to be fuel line O rings! Took a days fault finding to find it though.. Cold weather certainly exagerates the problem.

certainly sounds fuel related as any otehr problems are recorded in the diagnostics.
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Old 10-01-2010, 01:14 PM   #17
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Quote:
Originally Posted by corned View Post
OK I know this isn't a really helpful post, but is anyone else here rather surprised at (or has anyone else noticed) how many 270CDIs are not seemingly able to cope with the current conditions? Or is it mere coincidence?

There seem to be a lot of posts/threads relating to non-starting 270CDIs on here...
I haven't run mine for a few weeks but need to use it this week so yesterday I broke though the snow and ice and got in.

It was a little sluggish to turn over but started more or less instantly.
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Old 10-01-2010, 01:17 PM   #18
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hi all was gonna say the same as above didnt start my ml since dec 28 started this morning straight away ....
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Old 26-01-2010, 12:27 AM   #19
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ML 270CDI cold starting woes

I'm new to this forum but I was searching for some answers to my ML's starting issues. Since the cold weather hit my ML has refused to start several times. Mine is an 02 version and has just gone over 100k. The first time I called the AA and they diagnosed a fuell leak which had damaged the timing belt. Ihad just had the car serviced at a main dealer so I was a bit cheesed off that this hadn't been picked up. Cost me 900 in new bits. I also had an issue with the gear box refusing to change out of first gear. This corrected it self if you switched off the engine and restarted. Two weeks later and I still have starting issues from cold and still a temperamental gear box. Merc want 1500 to replace an electro-hydraulic shifter in the gearbox and fit a new battery.

I now have no confidence in the dealer to get to the bottom of this issue and i am going back to John Haynes a Merc specialist in Worthing. But I am going to get him to check the fuel pipes and seals first.

Sorry to go on so long.
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Old 31-01-2010, 03:42 PM   #20
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Ml270cdi

I too have recently also been having intermittent reluctant starting issues with my year 2000 ML270CDI.
Recently, especially from a cold start, or if the car has been running for some time and has got quite hot, engine will turn on start, fire up after a few seconds, then immediately stall!!
When this happens, it will require a significant churn for 20 seconds, before it shows any sign of ignition, and sometimes does not at all, and will have to be left for some time, before a re-start has any effect!!!
Very frustrating, because when the fault appears, first start nearly always works, and then stalls almost immediately!! It's after this point that re-start proves very difficult!!
Any suggestions / advise from sufferers with similar experiences?!
Thanks
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Old 05-02-2010, 09:25 PM   #21
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Ml270cdi starting problem

Crank Position Sensor changed, and now starts fist time every time!!
Typical CPS fault of not starting reliably when engine was hot had also started rearing its ugly head when engine was cold too, which I understand is not such a typical symptom.
Seems to have corrected the fault nevertheless!!!
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Old 27-12-2010, 09:19 PM   #22
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same problem ml 270d wont start

hi ......... im having this problem, on my 2003 270d ml,
the initial cold start of the day if outside temp below zero degs it just turns over & no sign of starting, give it a little sniff of easy start & away she goes & starts 1st flick of the key all day, new battery fitted,glo plugs fitted last january,have tested them now & they work fine ... as said if outside temp above zero not any problem starting only when below zero !!! please help
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Old 28-12-2010, 05:19 PM   #23
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hi just want to say i have ben having a simmilar problem with my ml270 52 reg. i had the seals and lines changed and it appeared ok until xmass day when it wouldnt start, i got it goin off quick start but then on boxing day it seemed to be runnin in limp mode not goin above 2000 revs, now it is runnin ok but im gonna get it on diagnostics to see if it tells me anythin.
hope you get it sorted if i find out anythin i think will help i will let you know
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Old 06-02-2011, 10:16 PM   #24
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hi all, just an update on my problem....
i was advised by a local mechanic that it was probably that i had aftermarket gloe plugs fitted !! and that if i fitted the genuine mercedes plugs it would cure the problem...
having fitted the merc plugs myself (80 for the from main dealer )on january 21st and luckly had a -4.5 deg on the 22nd i was able to try these new babys out !!! and to my suppries it started & has done each time since !!!!! just let heater light go out & she fired up .......
so if any one else still suffering,just check u got merc plugs fitted 1st b4 you go to the expence of checking other parts....
also i had number 1 & 2 fuel injectors copper washers leeking which didnt help either & getting them sorted tomorrow.....
hope this is of help 2 you

daaave
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Old 29-02-2016, 06:02 PM   #25
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C220 cdi

Quote:
Originally Posted by A GORDON View Post
I too have recently also been having intermittent reluctant starting issues with my year 2000 ML270CDI.
Recently, especially from a cold start, or if the car has been running for some time and has got quite hot, engine will turn on start, fire up after a few seconds, then immediately stall!!
When this happens, it will require a significant churn for 20 seconds, before it shows any sign of ignition, and sometimes does not at all, and will have to be left for some time, before a re-start has any effect!!!
Very frustrating, because when the fault appears, first start nearly always works, and then stalls almost immediately!! It's after this point that re-start proves very difficult!!
Any suggestions / advise from sufferers with similar experiences?!
Thanks
I'm having the same issue with my 52 C220 cdi just paid local MB dealer 295 to clear previous faults from Star and turn fuel pipe around the other way, still have the same problem. Dealer seemed more hell bent on selling me a new injector for 495. The worst bit is that the dealer said "its cheaper to bring the car straight to us as we only charge 144 +vat per hour." Is there anyone out there that can shed any light on this or do I just get rid of my Merc
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Old 07-12-2016, 10:09 AM   #26
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Hi have that problem with my ml 270 cdi fuel problem don't want to start up in the morning put feul pump it still has not fix the problem now i don't know what to do 3 shops look at it and still have not fix the problem so hi have to find out what is it with this ml 270 cdi fuel problem if i don't put my foot and the gas pedal it don't want to start up can anyone help me please dwight

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Old 08-12-2016, 08:23 AM   #27
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Check for small leakages because leaks leads to air getting into the fuel pipes and results to vacuums.


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Old 08-12-2016, 08:25 AM   #28
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Hopping that they have checked the fuel pump and it is working. I experienced the same task few days ago until i changed the pipes and am sorted now


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Old 08-12-2016, 10:31 AM   #29
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What pipes is that you have changed

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