E-Class (W210) 1995-2002: E 200, E 220D, E 240, E 290TD, E 300TD, E 200, E 240, E 280, E 320, E 420, E 430 (Wagon, Touring, 4Matic)

Code 0100

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Aug 3, 2008 | 07:05 PM
  #1  
ed austin's Avatar
Thread Starter
Junior Member
 
Joined: Mar 2007
Posts: 33
Likes: 0
From: Chandler, AZ
2001 E55 Silver with Charcoal/Ruby
Code 0100

My '01 E55 has ~110,000 miles on it. It started running very rough recently. Terrible gas mileage and throwing a 0100 code consistently (erase it, starts up without it, then comes right back).

Has anyone had any experience diagnosing a 0100 Code (MAF or VAF A Circuit Malfunction)?

Replaced the MAF about 12,000 miles ago (whole thing with a Bosch part; not just the insert). Since I started getting the 0100 code I took out the MAF and cleaned it with CRC MAF cleaner (didn't take the MAF apart).

Any help is appreciated.
--Ed
Reply
Old Aug 3, 2008 | 07:14 PM
  #2  
husk323's Avatar
Senior Member
 
Joined: Dec 2004
Posts: 484
Likes: 1
From: orange county, CA
Tesla Roadster Sport
did you replace your airfilter as well? Chances are you will have to get another MAF and new air filter.
Reply
Old Aug 3, 2008 | 08:24 PM
  #3  
ohlord's Avatar
MBWorld Fanatic!
 
Joined: Apr 2007
Posts: 6,171
Likes: 16
300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
That's

a circuit problem,not a cleaning problem.You need to check power to the maf,any loose or frayed wires,Make sure the socket is plugged in.Bosch part off ebay or a real bosch part from someplace like autohausaz.com.?Someplace the maf system is not getting the whole 5 volt signal,,,,,you need to locate where.Any friends near by to swap out the maf and see if it has a gone kaput circuit?
ohlord
Reply
Old Aug 3, 2008 | 08:59 PM
  #4  
ed austin's Avatar
Thread Starter
Junior Member
 
Joined: Mar 2007
Posts: 33
Likes: 0
From: Chandler, AZ
2001 E55 Silver with Charcoal/Ruby
Bosch MAF from Autohauz.com

The one I replaced ~12k miles ago was a Bosch MAF from Autohauz.com. I have a neighbor with a 2001 E320...will it have the same MAF???
Reply
Old Aug 3, 2008 | 09:00 PM
  #5  
ed austin's Avatar
Thread Starter
Junior Member
 
Joined: Mar 2007
Posts: 33
Likes: 0
From: Chandler, AZ
2001 E55 Silver with Charcoal/Ruby
Code 0100

I replaced the Air Filters about 2 months ago.
Reply
Old Aug 3, 2008 | 09:21 PM
  #6  
ohlord's Avatar
MBWorld Fanatic!
 
Joined: Apr 2007
Posts: 6,171
Likes: 16
300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
no

you would need one from an E430 or another e55.
Reply
Old Aug 3, 2008 | 10:00 PM
  #7  
ed austin's Avatar
Thread Starter
Junior Member
 
Joined: Mar 2007
Posts: 33
Likes: 0
From: Chandler, AZ
2001 E55 Silver with Charcoal/Ruby
code 0100

Tried disconnecting the battery for an hour...no help.
Reply
Old Aug 4, 2008 | 12:01 AM
  #8  
husk323's Avatar
Senior Member
 
Joined: Dec 2004
Posts: 484
Likes: 1
From: orange county, CA
Tesla Roadster Sport
your maf is kaput replace it and your air fliters
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

8 Oddball Mercedes Ideas That Actually Made it to Production

 Verdad Gallardo
story-1

Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

 Verdad Gallardo
story-2

Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

 
story-3

7 Craziest Things AMG Gas Ever Built

 Verdad Gallardo
story-4

New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

 Verdad Gallardo
story-5

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-6

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-7

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-8

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-9

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
Old Aug 4, 2008 | 12:33 PM
  #9  
TMAllison's Avatar
Super Member
 
Joined: Jun 2008
Posts: 835
Likes: 2
From: Bay Area, CA
09' E320
PO100 IS a circut malfunction (ie: loss of power/communication).

Check the wiring and connections.
Reply
Old Aug 9, 2008 | 03:49 PM
  #10  
ed austin's Avatar
Thread Starter
Junior Member
 
Joined: Mar 2007
Posts: 33
Likes: 0
From: Chandler, AZ
2001 E55 Silver with Charcoal/Ruby
Replaced MAF

Replaced the MAF this morning. Cleared codes and took it for a 15 mile drive. No CEL. Great performance and 19.5mpg.
Reply
Old Aug 9, 2008 | 04:46 PM
  #11  
ohlord's Avatar
MBWorld Fanatic!
 
Joined: Apr 2007
Posts: 6,171
Likes: 16
300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
So

as suspected ---- swap out the maf and see if it has a gone kaput circuit?---
The Maf circuit was kaput and Autohausaz.com replaced it no problemo
Now you can get back to kickin butt and takin names That has got to feel great!
Reply
Old Aug 9, 2008 | 05:35 PM
  #12  
ed austin's Avatar
Thread Starter
Junior Member
 
Joined: Mar 2007
Posts: 33
Likes: 0
From: Chandler, AZ
2001 E55 Silver with Charcoal/Ruby
Yep...feels great. Now on to the next challenge. Slight vibration at idle. Getting ready to replace tranny mount (already did motor mounts).
Reply

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


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 01:38 AM.

story-0
8 Oddball Mercedes Ideas That Actually Made it to Production

Slideshow: Mercedes has never been afraid to experiment, and some of its strangest ideas turned out to be surprisingly successful.

By Verdad Gallardo | 2026-06-10 17:43:40


VIEW MORE
story-1
Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

Sideshow: A Middle Eastern tuner has transformed the Mercedes-AMG G 63 into an open-top special, replacing nearly every exterior panel in the process.

By Verdad Gallardo | 2026-06-10 15:29:50


VIEW MORE
story-2
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-3
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-4
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-5
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-6
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-7
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-8
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-9
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE