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 ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-25-2003, 06:44 PM
Registered User
 
Join Date: Nov 2002
Location: Charlotte, NC
Posts: 12
Angry New Air Flow Sensor

I recently had the fuel system cleaned in my 93 190E 2.3 as well as having the EHA switch replaced. When I had this done, the mechanic informed me that I needed a new "air flow sensor" and that it would cost $875 for parts and labor. He explained that the part was $825.

Is it true that an air flow sensor costs that must? Any suggestions on where to get one at a better price?
__________________
Dave McDaniel
Charlotte, North Carolina
Reply With Quote
  #2  
Old 01-25-2003, 06:58 PM
Registered User
 
Join Date: Nov 2002
Location: florida
Posts: 83
mercedes parts dept quoted me $490.00

Note:
Requires (1) 102 070 01 74 mixture adjustment repair kit.


Product Brand Availability Retail Our Price

B3000-29254 Air Flow Meter Bosch IN STOCK $743.35 $495.57
THIS FOR MY 92 2.6
FOR YOUR CAR IT SAYS $400.00
HERE IS THE URL

http://catalog.eautopartscatalog.com/tayco/model.jsp?header=header.jsp&footer=footer.jsp&partner=tayco&baseurl=http://www.alloemautoparts.com/&year=1992&make=MB&clientid=oem&cookieid=0T7142NN6
HOPE THIS HELPS
Reply With Quote
  #3  
Old 01-26-2003, 01:23 AM
MTI's Avatar
MTI MTI is offline
Registered User
 
Join Date: Nov 2002
Location: Scottsdale, Arizona
Posts: 10,626
There's a used one on E-Bay now, the opening bid was around $60.
Reply With Quote
  #4  
Old 01-26-2003, 10:38 AM
aTOMic's Avatar
(Oo=*=oO)
 
Join Date: Aug 2001
Location: Hendersonville, Tennessee, USA, Earth
Posts: 451
Get one from here!! Mine was $270 (dealer wanted twice that). Click on FASTLANE tab at top of page!!

Call the 800 number if it doesn't list one for your car.

Installation takes ten minutes, do a search I;m sure you will find instructions.

-Tom
__________________
RIP "Betsy" (Oo=*=oO)
'96 E 3 2 0 (W 2 1 0) M 1 0 4
(Totalled)

Spaces in sig so as not to screw up the SEARCH; every time someone searches for that MB they don't want my sig!

2004 Audi A8L
'98 VW Passat 1.8T 5M
'87 Alfa Romeo Milano 2.5L 5M
'67 Impala convertible, 327cid
Reply With Quote
  #5  
Old 01-26-2003, 11:58 AM
Registered User
 
Join Date: Nov 2002
Location: Charlotte, NC
Posts: 12
Part Confirmation

Thanks for the feedback. How can I confirm the part number. I guess I could call the mechanic and ask him for it but my guess is that he will be reluctant to give it to me.
__________________
Dave McDaniel
Charlotte, North Carolina
Reply With Quote
  #6  
Old 01-26-2003, 02:52 PM
Registered User
 
Join Date: May 2000
Posts: 376
DMC,

Call around to get the best price. For my car it was close to $600 for a dealer one. Cheapest price I could find, cheaper than our host. They are not all the same depending on the model and year. Some are substantially cheaper than others.

I don`t know how Tom could change it in 10 minutes, unless he is thinking of a different part. Mine took a couple of hours.

How did your mechanic come to his conclusions? Is the car running poorly?

Tinker
Reply With Quote
  #7  
Old 01-26-2003, 04:59 PM
aTOMic's Avatar
(Oo=*=oO)
 
Join Date: Aug 2001
Location: Hendersonville, Tennessee, USA, Earth
Posts: 451
Is this like yours?




On mine you simply unplug the connector, remove four clips that hold it in the air inlet and install the new one. I am talking about the "air mass meter" that goes in the air inlet tube between the air filter housing and the intake manifold. I hope that's the part you guys are talking about. It is cylindrical, about six inches in diameter and shaped like a coffee can. I replaced one on my VW 4-cylinder, too; it was similar in size and price (and installation time).
__________________
RIP "Betsy" (Oo=*=oO)
'96 E 3 2 0 (W 2 1 0) M 1 0 4
(Totalled)

Spaces in sig so as not to screw up the SEARCH; every time someone searches for that MB they don't want my sig!

2004 Audi A8L
'98 VW Passat 1.8T 5M
'87 Alfa Romeo Milano 2.5L 5M
'67 Impala convertible, 327cid
Reply With Quote
  #8  
Old 01-26-2003, 05:31 PM
Registered User
 
Join Date: Nov 2002
Location: Charlotte, NC
Posts: 12
Tinker - Answer to your question

Tinker,
My wife drives this car and she said that about a week ago, the car just cut off. The car did start right back up on the first try. Later that evening, she said she went to go put the car in park and once she did, the car "revved up" to a very high rpm. She put the car in drive and the rpm came back down to a normal level. She then put the car back in park and it revved way up again to roughly 6,000 rpm. Then she just cut the car off. When she started the car a few minutes later, everything was fine.

I took the car in for service the next day and had them clean the fuel injectors and fuel system. They also noticed there was a small fuel leak and fixed that. They replaced the "EHA Switch."
Here is what I was billed for:
- FUEL INDUCTION CLEANING KIT $29.00
- GOVERNOR KIT CIS $210
- FUEL INDUCTION CLEANING SERVICE $100
- PIN CK ALL FUEL MANAGEMENT SYSTEMS $130
- REPLACE EHA SWITCH $39

LABOR TOTAL - $269
PARTS TOTAL -$239

As they were performing the work listed above they called me to tell me that I needed a new "Air Flow Sensor" and that was most definitely the reason for the erratic idling that my wife experienced. He then stated that I didn't have to do it now but that it would need to be done soon to avoid having the same problem again.

He also said that the part was hard to get and his cost was high on it and as a result, he didn't mark it up much. Most importantly, he said that the labor wasn't much because it only took a few minutes to put on / switch out. This leads me to believe it is the same part that Tom is talking about.

He seemed to be genuine but I don't have a long lasting relationship with this shop. I do know several people that use this shop and all have good things to say about using them after years of service.

Should I call him and ask him what the part number is for the "Air Flow Sensor?Most importantly, he said that the labor wasn't much because it only took a few minutes to put on / switch out.
__________________
Dave McDaniel
Charlotte, North Carolina
Reply With Quote
  #9  
Old 01-26-2003, 05:44 PM
aTOMic's Avatar
(Oo=*=oO)
 
Join Date: Aug 2001
Location: Hendersonville, Tennessee, USA, Earth
Posts: 451
Mine had the crazy erratic idle, it was the part we are talking about.

Yours is $450 from Fastlane. If some other online seller has a better price, call Phil and tell him - they will try to match it. I like to support this site since it has saved me THOUSANDS since I discovered it.

Why don't you find the one on your car and get the P/N off of it? It will be different from the Fastlane P/N but Phil at the 800# can cross it over for ya. Or just order it from Fastlane and when it comes look under the hood for a part like it.

I would strongly caution you against driving the car with a bad air meter it can launch itself or die at any time!!
__________________
RIP "Betsy" (Oo=*=oO)
'96 E 3 2 0 (W 2 1 0) M 1 0 4
(Totalled)

Spaces in sig so as not to screw up the SEARCH; every time someone searches for that MB they don't want my sig!

2004 Audi A8L
'98 VW Passat 1.8T 5M
'87 Alfa Romeo Milano 2.5L 5M
'67 Impala convertible, 327cid
Reply With Quote
  #10  
Old 01-27-2003, 12:22 AM
Registered User
 
Join Date: Nov 2002
Location: Charlotte, NC
Posts: 12
Location?

Tom,
Do you know where I can find instruction on how to locate the piece? I want to make absolutely sure I locate the approriate part.
__________________
Dave McDaniel
Charlotte, North Carolina
Reply With Quote
  #11  
Old 01-27-2003, 03:07 AM
mh mh is offline
Registered User
 
Join Date: May 1999
Location: irvine,ca,usa
Posts: 5
aTOMic,

Just curious, how was your W210 idle erratic? Was your 96 E320 idles high in park or neutral? The reason I am asking is that my 97 E320 (W210) idles high....about 1500 rpm when in park or neutral. The car drives excellent except for the high idle. Also, Do you know if the Mass Air Sensor failure a common problem on W210?

Thanks

mh
Reply With Quote
  #12  
Old 01-27-2003, 10:35 AM
aTOMic's Avatar
(Oo=*=oO)
 
Join Date: Aug 2001
Location: Hendersonville, Tennessee, USA, Earth
Posts: 451
dmcdaniel,
the best I can tell you is look at the tube that carries the air from the air cleaner housing to the intake manifold. There will be a sensor somewhere between these two landmarks. This is the air mass meter. It is usually big like a large soup can and connects to the rubber tube with some big metal clips (on most Bosch applications I have seen). Or just order it from Fastlane and when it comes look under the hood for a part like it.

Do a search or post your new specific question (e.g. "Where is the air mass meter on a 1993 2.3 engine?"). I don't know specifics about your engine but I am sure many members here do and will be happy to help. If you start a new thread you may want to post its title here too in case anyone else refers to this thread.

mh,
My idle went from almost stalled to 1500 RPM as if someone was revving the engine - it was creepy. Park, neutral, drive did not matter. It did not drive well; bucking and heaving. I think you have a different problem. Do a search on your engine type(mine is a M104 [=straight six, 3.2 liter] and I think yours is the same - sorry I do not know all the others My understanding regarding the MAS failure is they are good for around 100k miles then you are wise to budget for a new one. I understand (and I am sure someone will correct me if I'm misinformed) that the air mass meter in our cars measures air flow by heating a resistance-sensitive metal sensor to a known temp then detecting the difference as the air flowing into the engine cools it. this is stressful but the sensor self cleans by heating to a high temp to burn off contaminants and so you can see why this is a "wear part".

Good luck & keep us posted!

-Tom
__________________
RIP "Betsy" (Oo=*=oO)
'96 E 3 2 0 (W 2 1 0) M 1 0 4
(Totalled)

Spaces in sig so as not to screw up the SEARCH; every time someone searches for that MB they don't want my sig!

2004 Audi A8L
'98 VW Passat 1.8T 5M
'87 Alfa Romeo Milano 2.5L 5M
'67 Impala convertible, 327cid
Reply With Quote
  #13  
Old 01-27-2003, 08:21 PM
Registered User
 
Join Date: Jul 2001
Location: SoCal
Posts: 1,303
Atomic, in the KE-III system the mass-airflow sensor does not look anything like what you pictured. Remember, this is a CIS injection system which is mechanical at heart. The MAS does send an electronic signal to the lambda control system, but it also mechanically controls the fuel system pressure in the fuel distributor. In the '93 190 it is located directly under the fuel distributor and air cleaner. If you remove the three bolts holding the air cleaner to the engine, disconnect the breather hose and intake temp sensor, the air cleaner assy will lift off - exposing all.

Steve
Reply With Quote
  #14  
Old 01-27-2003, 10:31 PM
Registered User
 
Join Date: May 2000
Posts: 376
Dave,

Tom is correct, his probably took 10 minutes to change. His is a hot wire air flow sensor. As Steve just stated, your car has a CIS KE system, a completely different animal. It has a big round sensor plate in a funnel that is spring loaded. As vacuum is created by the motor, a plate, connected to a potentiometer, swings open varying degrees to determine the fuel requirements. Yours may very well be bad as one of the symptoms is an elevated idle and/or stalling. If you are mechanically inclined, you can monitor the voltage coming from the meter to determine if there are problems. You should see voltages ranging from approximately 0.9v to 5.0v max. You might try simply cleaning the pins where the harnesses connect. There should be two connection points (?) with three pins each. Other than that, you can drive it awhile until the symptoms become more frequent. There are also people who have claimed to have fixed theirs by simply cleaning the electrical potentiometer with an erasure. I suppose its possible. I don"t know how many miles on yours. Others have stated you can buy the potentiometer by itself ($125), as this is usually the only part that wears, BUT from what I have read some people have had mix results going this route.

Tinker
Reply With Quote
  #15  
Old 01-28-2003, 12:22 AM
Registered User
 
Join Date: Nov 2002
Location: Charlotte, NC
Posts: 12
Tinker

Our '93 190 has just over 100k miles on it. Unfortunately it has been several years since I have been mechanically inclined (I rebuilt a '65 Mustang about 17 years ago.

Any additional thoughts on what I should do next? What would you do if you had limited time to work on it?

My initial thought is to just drive it for a while as long as I am not doing any additional harm to the car; however, on the other hand I tend not to like to procrastinate.
__________________
Dave McDaniel
Charlotte, North Carolina
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 09:52 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page