I bought some CRC Mass Air Flow Sensor cleaner the other day while picking up some odds and ends. Can someone point me to a picture of the MAF, or a schematic showing how to correctly access it. I've got a '89 124. Thanks in advance.

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Steven
1989 260E (276K miles)
1995 E320 (50K miles)

Your car does not have a MAF/MAS (or anything close).

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http://i193.photobucket.com/albums/z...-RESIZED-1.jpg
1991 300E - 212K and rising fast...

I thought I was going crazy. All these discussions about MAF's, and low mileage, and I couldn't even find mine.

Well, I guess it's time to adjust lambda again.

Thanks

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Steven
1989 260E (276K miles)
1995 E320 (50K miles)

There are only three possible benefits I can see to installing an aftermarket air filter, like the K&N: it is a permanent, cleanable, filter, vs. the cost of a disposable filter; it provides a performance benefit, either providing cleaner intake air, or more intake air, or both; it makes the owner-installer feel better.
Of these three, the most probable is the last. As for performance: the main restriction in the air intake is the throttle. Until the engine is at wide-open throttle, the air filter makes no significant difference in performance due to restriction.
As for cost, you can do the economic analysis yourself.

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Providing a home for these cars:
1951 Buick Special De Luxe
1977 Rolls-Royce Silver Wraith II
1970 Rolls-Royce Silver Shadow
1986 Mercedes-Benz 420 SEL
2005 Mercedes-Benz E 320 CDI
2012 GMC Sierra 1500 4X4
1927 Pierce-Arrow Series 80
1931 Pierce-Arrow Series 43
1926 Ford Model T coupe

K&N has a good article on their website explaining how they have NEVER seen oil on a MAF sensor. Also, they go on to explain that the air speed thru the filter never really gets high enough to dislodge oil droplets, even from a grossly over-oiled filter. Interesting article; but of course it's THEIR article.

My friend installed one on his '02 320E. after a while the MAF failed. Installed a new MAF - again lasted about 6 months. We tore it down, found fine dust all over the intake tubing, and under a magnifying glass FOUND DRY DUST & TINY SCRATCHES ALL OVER THE THIN-FILM SENSOR ON THE MAF. Didn't find any oil though.
He installed the 3rd MAF, cleaned the intake and bought a new paper filter - no more issues yet, been about 2 years.

I run a cold-air oiled filter on my Vette, cause I want max power and don't drive it under any but the best conditions. I'll never put one in my Mercedes, to gain "maybe" 2 HP and lose the OEM air cleaning capabilities.

As a retired engineer, I appreciate technology and data; but to me, just holding a paper filter and an oiled-gauze filter up to a light an looking through them is enough evidence to convince that the gauze filter could not trap fine dust as well. Try it sometime - kinda scary.

DG

= s Worn Bearing Surfaces.

'Classic Example of Non- Engineers selling Horse Poop in a Bag with a Pretty
Blue Ribbon to Backwoods Rum Runners.

All of Mercedes Air Filter Systems .no matter what model vehicle provide 2-3 times the amount of air flow required,AT THE END OF THE FILTER'S LIFE SPAN!!!

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'84 300SD sold
124.128