C-Class (W202) 1995-2000: C 200 CDI, C 220 CDI, C 270 CDI, C 180, C 200 K,C 230 K, C 220, C230, C 280

I think i know why my car isn't working properly.

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Feb 26, 2004 | 12:41 PM
  #1  
sunrat's Avatar
Thread Starter
Almost a Member!
 
Joined: Jul 2003
Posts: 45
Likes: 0
I think i know why my car isn't working properly.

Not changing a faulty oxy sensor for a year would do it wouldn't it? I think it is the one before the catalaytic converter that needs to be replaced. I guess that why there isn't much power when i floor it. I just changed the fuel filter last night and it is doing the same thing. Can anyone tell me if oxy sensors are hard to replace or if i need the stealership to do it?
Reply
Old Feb 26, 2004 | 12:51 PM
  #2  
E55AMG99's Avatar
MBWorld Fanatic!
 
Joined: Mar 2003
Posts: 3,445
Likes: 3
From: WOT somewhere in the Bay Area
1951 Caterpiller D6
Very easy to change if they are not too hard to reach. You will need a special socket that has a cutout for the wire. If they are tight, spray some liquid wrench on the threads and wait 30 minutes.
Reply
Old Feb 26, 2004 | 07:10 PM
  #3  
vas2vas's Avatar
Senior Member
 
Joined: Mar 2003
Posts: 298
Likes: 0
From: LI, New York
87 190E 2.6/1995 M3
Re: I think i know why my car isn't working properly.

Originally posted by sunrat
Not changing a faulty oxy sensor for a year would do it wouldn't it? I think it is the one before the catalaytic converter that needs to be replaced. I guess that why there isn't much power when i floor it. I just changed the fuel filter last night and it is doing the same thing. Can anyone tell me if oxy sensors are hard to replace or if i need the stealership to do it?
which code do you get?
Reply
Old Feb 26, 2004 | 07:25 PM
  #4  
timecop369's Avatar
Member
 
Joined: Dec 2002
Posts: 171
Likes: 0
From: San Jose, CA
1999 C280 Sport
Are you sure it's not the MAS meter?

Also, does your check engine light come on?

And again what codes do you get?
Reply
Old Feb 26, 2004 | 08:43 PM
  #5  
sunrat's Avatar
Thread Starter
Almost a Member!
 
Joined: Jul 2003
Posts: 45
Likes: 0
I have an P0505 error code, Faulty Idle Air Control. I believe that is my MAS.
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 11:13 AM.

story-0
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-1
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-2
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-3
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-4
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
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE