C220 Ignition Coils repair - Mercedes-Benz Forum

Go Back   Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W202 C-Class
New User? Register - Forgot Password

BenzWorld.org is the premier Mercedes-Benz Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 08-04-2007, 11:14 AM   #1 (permalink)
BenzWorld Newbie
 
Date registered: Jul 2007
Posts: 4
C220 Ignition Coils repair

I need some help reparing my 1995 C220. Problem is the car will idle
rough after driving for over 45 minutes. It will idle rough and misfire until
you stop and restart the car. I had my mechanic hook the computer up
and he says getting a misfire code and some o2 codes. He said since I have
new spark plugs its likey one or two bad ignition coils for $100 a piece.
he would likely charge an hour of labor at $95.

My goal is to not spend more than $300 and fix this problem.
I would hate to pay $300 for the coils and then still have to get the mass error sensor. As that sensor is expensive $300.

Question: Is it possible for him to replace each coil one at time and see if
the error code goes away? Then would only need to replace a coil if it is bad

Question: If the mass air flow sensor is bad, would the diagnostic computer display a specific error code? Or would it display general o2 errror codes like
I have currently.

Note: I put a new wiring harness in a couple years ago. So that should be good.

Thanks in advance!!!
Cheers, Mark
illini32 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-04-2007, 11:17 AM   #2 (permalink)
BenzWorld Newbie
 
Date registered: Jul 2007
Posts: 4
Mass Air Flow Sensor I meant.
illini32 is offline   Reply With Quote
Old 08-04-2007, 11:19 AM   #3 (permalink)
BenzWorld Newbie
 
Date registered: Jul 2007
Posts: 4
FYI, I also had a second mechanic do a diagnostics check and tell me I needed ignition coils. Of course they wanted to replace of them for $400.
illini32 is offline   Reply With Quote
Old 08-04-2007, 11:29 AM   #4 (permalink)
BenzWorld Newbie
 
Date registered: Jul 2007
Posts: 4
Just spoke with my mechanic he said:

It could very well be a mass air flow sensor. or it could be wiring or a coil.

He said bring the car in when its misfiring and we can tell which ignition coil
is bad. Fix that and see if that fixes it. Seems like a reasonable place to start.
illini32 is offline   Reply With Quote
Old 08-04-2007, 05:09 PM   #5 (permalink)
BenzWorld Elite
 
Date registered: Jul 2004
Posts: 3,806
You're hogging your own thread here. You should be able to read the codes yourself on the 38 pin connector, swap the coils yourself and see if the fault codes move with the coils. You have two coils, should be about $75-$80 each on the internet, and should be easy to replace.
deanyel is offline   Reply With Quote
Old 08-04-2007, 05:14 PM   #6 (permalink)
BenzWorld Elite
 
MarcusF's Avatar
 
Date registered: Apr 2005
Vehicle: 2002 CLK430
Location: Southern California
Posts: 1,653
If you have multiple coils, one approach may be to swap them and see if the miss follows the bad coil.
MarcusF is offline   Reply With Quote
Old 08-05-2007, 09:12 AM   #7 (permalink)
BenzWorld Junior Member
 
Rashoood's Avatar
 
Date registered: Jul 2007
Vehicle: C280 Sportline
Location: DXB
Posts: 12
it append with a freind of mine in his CLK 320
he changed the air flow sensor and the car has changed totally
Rashoood is offline   Reply With Quote
Reply

  Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W202 C-Class

Bookmarks



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Topic Author Forum Replies Last Post
FS: S-Class Ignition Coils and Fuel Pump Relay TheFinestImage For Sale/Wanted/Trade/Giveaway 2 06-01-2007 04:50 AM
ignition timing C220 danielm64 W202 C-Class 2 07-25-2006 12:02 AM
Ignition coils sanmanbx3 W163 M-Class 1 05-01-2006 07:13 PM
Ignition Coils Phil G-Class 2 11-28-2005 06:24 PM
ignition coils on top of spark plugs flatsixbe G-Class 0 09-22-2003 08:37 AM


All times are GMT -7. The time now is 01:01 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.1

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.