Rough Starting (Full Version)

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Rough Starting

  

srishell14 -> Rough Starting (2/1/2007 10:44:50 AM)

Whenever starting my 300cd in the morning or after an 8 hour or so break there is 10-20 seconds of the car running very rough.  I have to keep the accelerator depressed half way to keep it from stalling.  Colder temperatures only make it worse.  Is this average for this type of car or should something be done about it?

  
mb240D#@ -> RE: Rough Starting (2/1/2007 7:21:18 PM)

My 240D used to run rough in the cooler and cold temps until I did a diesel purge and replaced the 2 filters and finally the glow plugs. Now it idles much nicer when first starts up and I don't have to turn up the idle.
Hope this helps
Bob and his 1980 240D

mb240D#@ -> RE: Rough Starting (2/1/2007 7:23:50 PM)

One more thing I did was add a lower radiator hose heater to help with the cold temps here in Maine. My 240D starts at -6 and runs nice.
Bob and his 240D

srishell14 -> RE: Rough Starting (2/2/2007 6:19:25 PM)

Can you explain to me what a diesel purge is?  Previously, I have only associated that with svo conversions.  Thanks a lot for the help. 

jlguler -> RE: Rough Starting (2/2/2007 6:42:57 PM)

Hello, Here is a link with step by step instructions for a diesel purge. Basically, diesel purge is a mild solvent that cleans out your fuel system. It really works....




http://dieselgiant.com/injectorcleaning.htm

Regards,
John

AMGMercedes -> RE: Rough Starting (2/3/2007 10:32:42 AM)

quote:

run rough in the cooler and cold temps until I did a diesel purge


Mine does the same and wouldn't start today for work [:@] Will be doing this in a few days....

ForcedInduction -> RE: Rough Starting (2/3/2007 9:44:17 PM)

You have 1 or more bad glowplugs.

AMGMercedes -> RE: Rough Starting (2/4/2007 12:14:38 AM)

And $51.80 later. Not bad for two years I suppose?

kurt08 -> RE: Rough Starting (3/6/2007 11:37:52 PM)

quote:

ORIGINAL: srishell14

Whenever starting my 300cd in the morning or after an 8 hour or so break there is 10-20 seconds of the car running very rough.  I have to keep the accelerator depressed half way to keep it from stalling.  Colder temperatures only make it worse.  Is this average for this type of car or should something be done about it?

When I changed some of my Mercedes 240d parts on my car's fuel system and made a diesel purge, it made my ride smoother...


gianigreco -> RE: Rough Starting (3/19/2007 9:04:46 PM)

One more thing to consider about the rough starts.  I just went through this with my 1998 E300TD.  I was getting air in the fuel lines which was due to old rubber and the advent of the low sulfer fuels.  There were no obvious leaks but it was easy to see the air in the fuel lines.  Good luck.

  

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