Pulled P0170 and P0173
#1
Junior Member
Thread Starter
Join Date: Jun 2007
Location: NoVA
Posts: 28
Likes: 0
Received 0 Likes
on
0 Posts
2001 E320 4matic
Pulled P0170 and P0173
I pulled these codes on my car. I cleaned my MAF sensor, but I feel when the car is idle I see the rpm gauge moving up and down very little. Could this be a vacuum leak, or is it the MAF sensor?
#2
MBWorld Fanatic!
Did
the code clear itself or is it still pending or did you erase it.
Maf's don't always respond to cleaning and it may return.Autohausaz.com has them for 168 delivered.Did you clean it with crc brand maf cleaner?did you dissemble it to clean it?
ohlord
Maf's don't always respond to cleaning and it may return.Autohausaz.com has them for 168 delivered.Did you clean it with crc brand maf cleaner?did you dissemble it to clean it?
ohlord
#3
Junior Member
Thread Starter
Join Date: Jun 2007
Location: NoVA
Posts: 28
Likes: 0
Received 0 Likes
on
0 Posts
2001 E320 4matic
Reply
I reset the code. I used the best maf cleaner they had available, and I did disassemble the whole unit. I cleaned it and let it dry, then put it back in, drove it for 10 minutes and then I reset the codes. I can see the rpms moving slightly up and down at idle. I drove it to work this morning and the check engine light came back on again.
#5
Junior Member
Thread Starter
Join Date: Jun 2007
Location: NoVA
Posts: 28
Likes: 0
Received 0 Likes
on
0 Posts
2001 E320 4matic
Reply
I noticed the Ebay MAFs are significantly less expensive than the others. What are your experiences with them in comparison to to the bosch ones?
#6
Super Member
I'd go with the OEM product rather than an insert probably made for a VW off of ebay.
Spread out over 50-100K miles the cost difference isn't worth worry about if/when the cheap one is going to fail.
Spread out over 50-100K miles the cost difference isn't worth worry about if/when the cheap one is going to fail.
#7
MBWorld Fanatic!
autohausaz.com
ebay mafs are for the most part chinese clones that are sold by the container load for 18bucks each and then marked up to a price that seems fair but cheaper than the legit online suppliers.Most fail![EEK!](https://mbworld.org/forums/images/smilies/eek.gif)
$168 autohausaz.com
change your fuel filter first if it has been a while,often the cause for false values on the maf.diy on benzworld.org w210 diy section
![EEK!](https://mbworld.org/forums/images/smilies/eek.gif)
$168 autohausaz.com
change your fuel filter first if it has been a while,often the cause for false values on the maf.diy on benzworld.org w210 diy section
![bow](https://mbworld.org/forums/images/smilies/bowdown.gif)
Trending Topics
#8
Member
Join Date: Jun 2007
Location: Huntington Beach, CA
Posts: 87
Likes: 0
Received 0 Likes
on
0 Posts
2004 e320 and 99 e320 wagon
i have had good luck cleaning the old maf, but it only lasted about a year. i went with the insert from germanstar.net. seems to work perfectly. $140 or so. but you may, like ohlord said, go with a whole new unit for $30 more form the source he named.