Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 11-29-2010, 02:51 PM
Registered User
 
Join Date: Nov 2006
Posts: 200
'99 E300td...check engine light?

My "check engine" light just poped on. What checks do I need to make to isolate the problem? Everything seems to be running normally.

thanks
Bill

Reply With Quote
  #2  
Old 11-29-2010, 02:53 PM
MercFan's Avatar
Registered User
 
Join Date: Nov 2004
Location: Denver, CO
Posts: 994
Quote:
Originally Posted by wjob View Post
My "check engine" light just poped on. What checks do I need to make to isolate the problem? Everything seems to be running normally.

thanks
Bill
If I remember correctly this car as an OBDII port that you can plug a code scanner into to get the engine code(s) - I would do that first then report back with that info.
__________________
1987 Mercedes 300SDL; SOLD
1985 Mercedes 300D; SOLD
2006 Honda Pilot - wife's ride; 122K;
1995 Toyota Land Cruiser - 3X locked; 182K
Reply With Quote
  #3  
Old 11-29-2010, 08:18 PM
muleears's Avatar
Old MB Driver
 
Join Date: May 2006
Location: Windsor, VA
Posts: 1,435
Advance auto or O'Reilly's or other McParts places will do it for free. Or give you the reader to do it yourself. Like MercFan said, get the codes read and post them here. There are quite a few W210 owners or former owners here on the forum who can help you out.
__________________

Muleears
'07 E320 Bluetec 133K my DD
'04 Jaguar XJ8 VDP, 34K
'10 Hyundai Accent 60K Grocery Getter
'02 VW Golf soon to be on the road again
'97 E300 Diesel Son's DD
'61 VERY tolerant wife

Hampton Roads, VA USA

Gone but not forgotten:
'67 250S 95K
'86 300SDL
'87 300D Turbo, 364K! R.I.P.
'98 E300 Turbodiesel, 213K
'02 S420, 164K
'01 Prius 138K
Reply With Quote
  #4  
Old 11-30-2010, 04:17 PM
Registered User
 
Join Date: Nov 2006
Posts: 200
Had the code read. It's PO400 which I'm told is an EGR Flow problem. What's the suggested fix please? And should this cause any problems on a 500 mile trip I'm suppose to take in next several days?

thanks
Bill
Reply With Quote
  #5  
Old 12-01-2010, 10:40 AM
Registered User
 
Join Date: Nov 2006
Posts: 200
Quote:
Originally Posted by wjob View Post
Had the code read. It's PO400 which I'm told is an EGR Flow problem. What's the suggested fix please? And should this cause any problems on a 500 mile trip I'm suppose to take in next several days?
Can someone please help with the above?

thanks
Reply With Quote
  #6  
Old 12-01-2010, 11:43 AM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,835
I believe the egr issue could be a simple vacuum connection loose. look over your engine compartment for loose or cracked vacuum lines.
if you take a trip with this error you will be running on limp mode, and will have lackluster performance.
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
Reply With Quote
  #7  
Old 12-01-2010, 01:22 PM
Registered User
 
Join Date: Nov 2006
Posts: 200
Quote:
Originally Posted by vstech View Post
I believe the egr issue could be a simple vacuum connection loose. look over your engine compartment for loose or cracked vacuum lines.
if you take a trip with this error you will be running on limp mode, and will have lackluster performance.
Thanks for reply. Looked over top of engine and don't see any problems with the vacum lines. Should I look underneath as well? Owners manual says check engine light on indicates problem with fuel injection sysem. Would this egr fault be part of the fuel injection system?

Bill
Reply With Quote
  #8  
Old 12-01-2010, 01:36 PM
Registered User
 
Join Date: Feb 2004
Location: Walnut Creek, CA & 1,150 miles S of Key West
Posts: 4,874
Check teh vacuum lines from the egr (between charge air pipe and bottom of intake manifold) to the transducer mounted on the driver side wheel well. Make certain the "vent" exiting the transducer is open.
__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)
Reply With Quote
  #9  
Old 12-01-2010, 02:21 PM
Registered User
 
Join Date: Nov 2006
Posts: 200
Quote:
Originally Posted by TMAllison View Post
Check teh vacuum lines from the egr (between charge air pipe and bottom of intake manifold) to the transducer mounted on the driver side wheel well. Make certain the "vent" exiting the transducer is open.
The vacuum lines from the egr to the transducer look good. The hose that comes off the bottom of transducer goes to a plastic something that looks like a filter? How do I check the vent? Is it where this hose comes off the bottom of the transducer?
Reply With Quote
  #10  
Old 12-01-2010, 05:48 PM
Registered User
 
Join Date: Feb 2004
Location: Walnut Creek, CA & 1,150 miles S of Key West
Posts: 4,874
That is the filter, it vents to atmosphere. Just make sure it isnt clogged as that can trip a code.

Did you clear the code and it returned?
__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)
Reply With Quote
  #11  
Old 12-01-2010, 08:04 PM
Registered User
 
Join Date: Dec 2004
Location: Nashua, NH
Posts: 3,956
Terry is correct, that filter is the vent. Even though it can look clean I would recommend you buy a replacement and replace it. Any small restriction will trip the 0400 code you had and those filters (there is one on the wastegate actuator for the turbo too) are cheap and easy to replace and solve the problem most of the time. Buy two, replace them both, reset the codes and drive.
__________________
Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz
Reply With Quote
  #12  
Old 12-02-2010, 02:17 PM
Registered User
 
Join Date: Nov 2006
Posts: 200
Quote:
Originally Posted by TMAllison View Post
That is the filter, it vents to atmosphere. Just make sure it isnt clogged as that can trip a code.

Did you clear the code and it returned?
How do I make sure it isn't clogged? The filters that nhdoc referred to need to be ordered and won't get here for several days. In the meantime how can I check further?

I did clear the code the other day and it returned right away.

Bill
Reply With Quote
  #13  
Old 12-02-2010, 02:21 PM
Registered User
 
Join Date: Feb 2007
Location: VA
Posts: 621
Quote:
Originally Posted by wjob View Post
Had the code read. It's PO400 which I'm told is an EGR Flow problem. What's the suggested fix please? And should this cause any problems on a 500 mile trip I'm suppose to take in next several days?

thanks
Bill
Do a forum search here for P0400. There are many threads already on this exact code that should answer your questions.
__________________
'98 E300 turbodiesel
Reply With Quote
  #14  
Old 12-02-2010, 04:21 PM
Registered User
 
Join Date: Nov 2006
Posts: 200
Quote:
Originally Posted by wjob View Post
How do I make sure it isn't clogged? The filters that nhdoc referred to need to be ordered and won't get here for several days. In the meantime how can I check further?
Did a forum search under Po400 but didn't see an answer to the above?
Reply With Quote
  #15  
Old 12-02-2010, 07:21 PM
Registered User
 
Join Date: Feb 2004
Location: Walnut Creek, CA & 1,150 miles S of Key West
Posts: 4,874
Quote:
Originally Posted by wjob View Post
How do I make sure it isn't clogged? The filters that nhdoc referred to need to be ordered and won't get here for several days. In the meantime how can I check further?

I did clear the code the other day and it returned right away.

Bill
Unplug the line at the transducer and blow through the hose. You can drive without the vent for a few days too.

__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 08:43 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page