LowCaliTi

any info on replacing air mass sensor ?? code readout: P0170 & p0173

can anyone help me on if i should replace myself or pay dealer for a job that i think could be easy. i am not an idiot and semi mecanicly inclined i just need some basic instructions and maybee a good place to buy one if not from the parts dept. any help would be appreciated

btw i did search and couldnt some up with too mutch

integlikewhoa

Havent dont it on 203's but looks easy. GO for it. But only if it really needs to be replaced. check into that first. Im sure the part isnt cheap.

Buellwinkle

Piece of cake to replace, don't understand why they would charge more than 15-30 minutes labor to do it but you know dealers.

Call Hoehn MB in Carlsbad, ask for the wholesale parts desk and order it at the wholesale price, save a $100 or so. Of course if you are wrong, you just blew $300-400 on something you don't need. It could be something else like a vacuum leak or dirty/malfunctioning injectors but it seems like for most people it's the MAF sensor.

LowCaliTi

thanks guys im gonna try and mess with it today.ALSO.... can i just unhook the battery for a min. to reset the check engine light or do i have to bring it in?

Vader55

Here ya go ... It is easy..It is like changing your air filter.

http://cgi.ebay.com/ebaymotors/Merce...spagenameZWDVW

LowCaliTi

thanks benzondubz, speaking of cleaning your airfilter i just went to clean mine ....heres one...nice dirty jersey air for ya....

C43AMG

Replace it with a K&N ( no discussion on this , please ) OR Green Filter !

Vader55

LOL !! Holy crap ! Now do the K&N...

ps. How do like that 175.00 for the air mass

Buellwinkle

K&N filter is the way to go specially once you learn how to replace the MAF sensor as the oil from the filter can contaminate it. Personally I tried it and wasn't impressed, both on the dyno and the way it's made is rather cheap. If I every do aftermarket filter again, I would stick with ITG even though they are a little more expensive than K&N.

r3v1ls

As long as we're talking about air filters, does the dealer ever clean them if you give the car for service? I've had my car for 2 years and have never even checked the air filter. Would i just run some water over it.

C43AMG

$tealerships don't make money off of "cleanings" ( except your wallet) they would recommend "replacement".

r3v1ls

Hah true, i haven't gone to one for a while (thank god)... guess i'll give the car a wash this weekend, and clean the air filter.

Bing

advans

are Greens really better then K&N?

but w/e I saw one of the threads from mbklasse, I remember i think its one of them DIYs abt the Air Mass Sensor?

StapleGun

For your 411, easy, easy job....do an ebay search. I purchased mine on the 'bay' - a Bosch OEM for $200, shipping included. Your codes are fuel trim, left and right bank, respectively. The MAF replacement did the trick. Look up my posts, the posts on this forum are quite comprehensive.

WifesC320

I had those codes too and the MAF did the trick. But now it seems like my gas milage is suffering though.

Outland

Lift off the pedal.

white_w203

daym thats a lot of bugs