Check engine codes P400 and P410 - Mercedes-Benz Forum
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 09-23-2011, 02:20 AM Thread Starter
BenzWorld Junior Member
Date registered: Feb 2009
Vehicle: 2000 ML430, 2002 E320
Location: Delray Beach Fl
Posts: 35
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Check engine codes P400 and P410

Have had persistant check engine code P0400 for several years however car had been running fine. Yesterday I returned from a trip where I had left the car parked for 3 weeks and the engine ran very rough at low speed. Made it home (50 miles on interstate) but still runs rough. Error codes are
P0410 Secondary air
Po400 Air recirculation
P0300 Random misfire
P0306 Cyliner 6 misfire

Can the secondary airpump failure cause this rough idle problem?
jespaulding is offline  
Sponsored Links
Sponsored Links
post #2 of 2 (permalink) Old 09-23-2011, 03:34 AM
BenzWorld Elite
Date registered: Apr 2009
Vehicle: 96 E-320, 91 190E, various and sundry Euro and American vehicles
Location: N/W Chicago in the cornfields
Posts: 12,141
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
A cylinder misfire sure can.
I would look at the coil supplying cyl 6. I've replaced 2 of the 3 coils thus far.
Your setup differs from mine in that it is a V-6 rather than inline, but the coil packs on mine have been trouble.

Oh, and on the P0400 . I get it at random, and clear the code. It goes away for a week to several months. I've cleaned and replaced all lines and the egr is not sticky.
I live with it like you have.

Last edited by aardvark; 09-23-2011 at 03:40 AM.
aardvark is offline  

  Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W210 E-Class

Quick Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Topic Author Forum Replies Last Post
check engine codes!!! cutiekaitlin General Mercedes-Benz 1 08-05-2011 06:33 PM
Check engine codes P400 and P410 jespaulding W210 E-Class 0 11-28-2010 12:25 PM
CLK 430 Check Engine Codes doccherry General Mercedes-Benz 6 11-16-2010 10:43 PM
Check Engine Light - How to check for codes? DesignEx W203 C-Class 2 03-02-2010 04:21 PM
Check Engine light comes on during Smog test and reading codes - no codes found 1996s320 W140 S-Class 11 06-15-2009 09:37 AM

Posting Rules  
You may post new threads
You may 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Title goes here

video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome