W163 ML270 CDi Cold Start Problem

[A GORDON]

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!!!

 

[daaave666]

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

 

[siduck83]

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

 

[daaave666]

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

 

[spiderwebb]

C220 cdi

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

 

[osbournedwight]

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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[Eric Alex]

Check for small leakages because leaks leads to air getting into the fuel pipes and results to vacuums.


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[Eric Alex]

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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[osbournedwight]

What pipes is that you have changed

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