|07-17-2008, 05:26 AM||#1 (permalink)|
Date registered: Apr 2007
Mass Air Flow Sensor cleaning!
1999 SL500 70,000 miles.
I had the check engine light come on then go off, then on. The code said the mass airflow sensor was the problem. They wanted $390.00 for the part and 1 hr. labor to replace.
The local European parts store told me to try to clean it. $6.00 for the cleaner and about 30 minutes to do the job.
No more check engine light and the performance difference is astounding.
|07-17-2008, 06:48 AM||#2 (permalink)|
It's always worth cleaning the MAF before replacing. I cleaned mine when the car was misfiring and the ASR light was coming on and it completely cured all of the faults.
I just used 96º alcohol to clean the very fine filament by squirting the alcohol from a plastic bottle with a very fine hole directly on to the fine filament.
|07-18-2008, 09:38 AM||#3 (permalink)|
where is the maf?? do you have any pics of it, im wondering if i would need to clean mine. thanks
1992 300 sl (sold)
2005 C240 4MATIC (SILVER moms
1999 SL 500 77K (SILVER) bros
|07-18-2008, 09:52 AM||#4 (permalink)|
Please correct me if I am wrong and in case I am I'm apologizing in advance.
I drive like I stole . . . YOURS
|07-18-2008, 06:22 PM||#5 (permalink)|
Date registered: May 2006
Vehicle: 1999 SL500 Sport, Black Opal Pearl, Helios Leather, Pano roof, AMG Aero2 18"Split Rims, Rear Seats
Location: Ex London now Perth West Australia
This is a great DIY post from another forum, I presume it will relate to our cars although the the Maf is located in another spot on our engines
1999 SL500 Sport
|07-18-2008, 06:52 PM||#6 (permalink)|
Lifetime Premium Member
wayneg is correct. My hangout is on the W210 forum and there are a lot of owners there who have gotten good results from cleaning theirs. As you'll notice from the DIY, there is a specific cleaner for them. Other things might work, but I'd advise the one recommended in our Sticky.
Mercedes Benz - Das beste oder nichts!
|07-19-2008, 05:45 AM||#7 (permalink)|
CRC Mass Air Flow cleaner is the commercial product, and it worked well when I used it.
They don't give you the formula on the can, but I'd be willing to bet it's probably just re-packaged electrical contact cleaner.
"Veni, Vidi, volo in domum redire." (I came, I saw, I want to go home.)
|07-21-2008, 05:07 AM||#8 (permalink)|
Date registered: Jan 2008
Vehicle: SL 60 1998
Location: Somerset U.K.
BEWARE some electrical contact cleaners can damage plastic - Servisol for one. Always test before use.
I have had some switches lock up solid after some cleaners.
1998 SL 60
1991 SL 500 (sold)
|07-21-2008, 07:01 AM||#9 (permalink)|
BenzWorld Senior Member
Date registered: Jan 2007
If you decide to go the replacement route, which I did because I had a hard failure code, AutohausAZ has them for $265 and free shipping for genuine German-made in the yellow box. I'm told that you need to avoid the ones made in South Africa that come in a gray box.
Falls Church VA
1966 200 Fintail
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