MAF Mass Air Flow Help!
Thread Starter
Member
Joined: Jan 2003
Posts: 89
Likes: 0
From: South Florida
2007 C230 Sport
MAF Mass Air Flow Help!
Sorry for double posting (Tech Talk) just want to get this fixed fast especially from some W210 owners with experience.
Got the following codes this weekend:
P0170 Fuel Trim Malfunction (Bank 1) ) check vaccum leaks first or
faulty MAF (mass air flow) sensor
P0173 Fuel Trim Malfunction (Bank 2) )
Leading to believe it's a MAF problem. I have been reading threads all day
but still have a few questions:
Will the MAF sensor cause rough idle?
Where is it located?
What kind of labor is needed to replace it?
Can it be fixed or should it be replaced?
What happens if you don't replace the unit?
Who has the best price on a new unit?
Thanks
Got the following codes this weekend:
P0170 Fuel Trim Malfunction (Bank 1) ) check vaccum leaks first or
faulty MAF (mass air flow) sensor
P0173 Fuel Trim Malfunction (Bank 2) )
Leading to believe it's a MAF problem. I have been reading threads all day
but still have a few questions:Will the MAF sensor cause rough idle?
Where is it located?
What kind of labor is needed to replace it?
Can it be fixed or should it be replaced?
What happens if you don't replace the unit?
Who has the best price on a new unit?
Thanks
MBWorld Fanatic!
Joined: Feb 2005
Posts: 5,761
Likes: 4
From: North Carolina
98 Black C43 , 12’ ML 350 Blutec
Originally Posted by MB_E430
Sorry for double posting (Tech Talk) just want to get this fixed fast especially from some W210 owners with experience.
Got the following codes this weekend:
P0170 Fuel Trim Malfunction (Bank 1) ) check vaccum leaks first or
faulty MAF (mass air flow) sensor
P0173 Fuel Trim Malfunction (Bank 2) )
Leading to believe it's a MAF problem. I have been reading threads all day but still have a few questions:
Will the MAF sensor cause rough idle?
Where is it located?
What kind of labor is needed to replace it?
Can it be fixed or should it be replaced?
What happens if you don't replace the unit?
Who has the best price on a new unit?
Thanks
Got the following codes this weekend:
P0170 Fuel Trim Malfunction (Bank 1) ) check vaccum leaks first or
faulty MAF (mass air flow) sensor
P0173 Fuel Trim Malfunction (Bank 2) )
Leading to believe it's a MAF problem. I have been reading threads all day
but still have a few questions:Will the MAF sensor cause rough idle?
Where is it located?
What kind of labor is needed to replace it?
Can it be fixed or should it be replaced?
What happens if you don't replace the unit?
Who has the best price on a new unit?
Thanks
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#3 - 10-15 MINUTES
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# 6 - EBAY
U R WELCOME
Member
Joined: Jan 2002
Posts: 133
Likes: 0
From: SF Bay Area
E430
Will the MAF sensor cause rough idle?
Yes, it can.
Where is it located?
It is attached to the air filter housing. Sits inline between air filter housing and intake pipe. Unplug the connector and you should have it in your hand.
I'd say it's more in the front 1/3 of the passenger side of the motor rather than near the firewall.
What kind of labor is needed to replace it?
5 mins. If you can undo a couple of clips, and one band clamp with a screw driver.
Can it be fixed or should it be replaced?
Yes, it's a wear item.
What happens if you don't replace the unit?
Bad mileage, lumpy idle, check engine lights
Who has the best price on a new unit?
I ordered one last week at drivewire.com for 184 (plus tx since I'm in Ca) I did not find anything less.. about 200 shipped to me.
Good luck,
-travis
Yes, it can.
Where is it located?
It is attached to the air filter housing. Sits inline between air filter housing and intake pipe. Unplug the connector and you should have it in your hand.
I'd say it's more in the front 1/3 of the passenger side of the motor rather than near the firewall.
What kind of labor is needed to replace it?
5 mins. If you can undo a couple of clips, and one band clamp with a screw driver.
Can it be fixed or should it be replaced?
Yes, it's a wear item.
What happens if you don't replace the unit?
Bad mileage, lumpy idle, check engine lights
Who has the best price on a new unit?
I ordered one last week at drivewire.com for 184 (plus tx since I'm in Ca) I did not find anything less.. about 200 shipped to me.
Good luck,
-travis
Thread Starter
Member
Joined: Jan 2003
Posts: 89
Likes: 0
From: South Florida
2007 C230 Sport
Thanks
Thanks to for all the advice it's greatly appreciated.
I also did a parts search and found:
http://www.drivewire.com/mercedespar...massmeter.html Bosch $184 free shipping
Drivewire had the best price.
Thanks
I also did a parts search and found:
http://www.drivewire.com/mercedespar...massmeter.html Bosch $184 free shipping
Drivewire had the best price.
Thanks
MBWorld Fanatic!
Joined: Feb 2002
Posts: 9,815
Likes: 13
John Deere
speedmbparts.com has it for $161. Make sure you get the one for the V8 engine, not the V6. Part number ends in 113 instead of 112.
I also see them on ebay for the same price if you get lucky (nobody else bids on it).
I also see them on ebay for the same price if you get lucky (nobody else bids on it).
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Member
Joined: Jan 2002
Posts: 133
Likes: 0
From: SF Bay Area
E430
Should be the same procedure as outlined above. Same engine.
Don't pay 700.00! Use the links above to purchase the Bosch part and save yourself a bunch of $$$.
If you have a Check Engine light on, go to Autozone and they'll clear it for free after you install the MAF.
-travis
Don't pay 700.00! Use the links above to purchase the Bosch part and save yourself a bunch of $$$.
If you have a Check Engine light on, go to Autozone and they'll clear it for free after you install the MAF.
-travis
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Newbie
Joined: May 2006
Posts: 18
Likes: 0
From: Wine Country, CA
2001 E430 Designo
No, No, No!
Far too excessive cost for a trivial procedure - as noted above a couple of clips and one clamp.
I could buy the part, fly to Phoenix, do the job, charge you less (only a little tho ...) and come home with some cash.
- Nellie
Member
Joined: Dec 2005
Posts: 233
Likes: 0
From: Phoenix
2001 E430 Sport
Newbie
Joined: Mar 2007
Posts: 1
Likes: 0
Sorry for double posting (Tech Talk) just want to get this fixed fast especially from some W210 owners with experience.
Got the following codes this weekend:
P0170 Fuel Trim Malfunction (Bank 1) ) check vaccum leaks first or
faulty MAF (mass air flow) sensor
P0173 Fuel Trim Malfunction (Bank 2) )
Leading to believe it's a MAF problem. I have been reading threads all day but still have a few questions:
Will the MAF sensor cause rough idle?
Where is it located?
What kind of labor is needed to replace it?
Can it be fixed or should it be replaced?
What happens if you don't replace the unit?
Who has the best price on a new unit?
Thanks
Got the following codes this weekend:
P0170 Fuel Trim Malfunction (Bank 1) ) check vaccum leaks first or
faulty MAF (mass air flow) sensor
P0173 Fuel Trim Malfunction (Bank 2) )
Leading to believe it's a MAF problem. I have been reading threads all day
but still have a few questions:Will the MAF sensor cause rough idle?
Where is it located?
What kind of labor is needed to replace it?
Can it be fixed or should it be replaced?
What happens if you don't replace the unit?
Who has the best price on a new unit?
Thanks
However this did not solve the problem. I ended up taking it to the dealer who first replaced an O2 sensor ($400). The check engine light came on again and still ran rough after I left the dealer. When I took it back they replaced the mass air flow sensor with a MB part and that fixed the problem (for another $400+).
Beware too that even if you replace the sensor yourself with a genuine MB part, the adaptation data in the computer may need to be reset by someone who has the equipment and know how. The folks who sell these cheap air flow sensors don't tell you that.
Hope this helps. Good luck.
Super Member
Joined: Sep 2006
Posts: 563
Likes: 0
From: California
1998 E320
I bought an OEM maf insert on ebay for $90+$10 shipping, worked like a charm 
This is what I bought, but from a different seller.
http://cgi.ebay.com/ebaymotors/MASS-...91364217QQrdZ1
This is what I bought, but from a different seller.http://cgi.ebay.com/ebaymotors/MASS-...91364217QQrdZ1
Last edited by OldNate; Mar 20, 2007 at 06:49 PM.
Member
Joined: Dec 2005
Posts: 233
Likes: 0
From: Phoenix
2001 E430 Sport
I almost did. I just paid orver 500 to fix an A/C leak. The next morning the check Engine light was on. Took it in and they said the MAF was bad. Wanted 750.00 to fix but knocked a few bucks off because I have been a loyal customer.....unreal
MBWorld Fanatic!
Joined: Mar 2007
Posts: 2,493
Likes: 0
From: Santa Clarita, CA
1987 E300 TD
I got a Solus Handheld CPU in my schools auto shop that clears the codes....if you drop by with your car during my class I can read / clear codes for you ( If you live in or near Valencia, CA) But hey, just take your car down to autozone or something....it's worth to see what codes your car has thrown
Almost a Member!
Joined: Feb 2007
Posts: 40
Likes: 0
E320 1996
I bought this one on e-bay;
http://cgi.ebay.ca/ws/eBayISAPI.dll?...7346&rd=1&rd=1
So far works perfect
I called the dealer they wanted $499.00 Plus Tax
http://cgi.ebay.ca/ws/eBayISAPI.dll?...7346&rd=1&rd=1
So far works perfect
I called the dealer they wanted $499.00 Plus Tax
