my 97'C280 has never had the MAF changed since I bought it used at 75,000 miles. all I used to do was peridoically spray some MAF cleaner into it and let it dry. but just the other day I got the dreaded rough idle so I immediately placed an order for a new MAF for $133.00+ tax online.
Discount Auto Parts - Car Parts, Truck Accessories and Import Performance Parts at The Parts Bin

................and ?

maybe he's advertising the shop.

I was just amazed at the life I got out of it. I see a lot of people on here where their MAF went out at 75,000 and not near 158,000..BUT the rough idle still persists after I put in the new MAF. I already changed the plugs.

what could it be if not the MAF?

codes showed up:

P0170 - fuel trim
P0130 - O2 Sensor
P1519 - manifold flap shut


Solution = O2 Sensor $230.00 from dealer

hope this fixes it.

It was probably replaced prior to your purchase.

Yikes. Did you check autohausaz.com for a price first?

I had to get one fast, I was on my last backfire. it stalled lots of time in traffic. I got it from the dealer in 24hours and swapped it out yesterday DIM (Did It Myself). I runs better than new now!!

I've come to realize that the these cars are like your comupters at home. you have to track down the bug and fix it. I now know that there are various things like:

coils, wires, plugs,o2sensors,maf, all can contribute to the rough idle. so as common sense goes...start with cheapest parts first. I already had replaced my plugs(bosch plats), and my boots were still good and my coils were still good. so when all of this started to happen I just moved to the next thing which to me was the maf. so I got that and it was still stalling. and finally the cel threw the code of the o2sensor.

maybe so.

Someone reported that their transmission and motor mounts were the source of rough idling.