Quadcammer

that I've ever seen in my entire life is this:



The bloody maf bracket is almost 100% impossible to put back on the car. Its absolutely mindboggling how absurdly complex this part is.

It serves NO purpose other than to keep the maf from moving around too much.

Hey dickbag engineers at MB...couldn't do it any better than this?

Just spent like 2 hours trying to get this back on, and I still had to modify it.

FUUUUUU

Corsa9000

Seems like a lot of work to clean the MAF sensor. Maybe this is why it is not cleaned and just replaced when it fails.

bigben320e

This is one of the funniest posts I have read in a while. Good one Oliver.

ZedStyle

i would agree with the 'overengineering' if the maf is supposed to be cleaned every 3k miles, or 5k miles or something. it's not designed for regular maintenance, so why should it be easier to clean? otherwise it's like saying your engine is overengineered because you can't wipe off your cylinders with a rag after an oil change.
though the air filters could be easier to replace, i will say that

Quadcammer

Well cleaning has been proven to prolong them. P.S. You still have to remove this "bracket from hell" when you do a MAF replacement.

Thanks man! I was looking at this thing forever. I was at the MB parts counter, and me and the parts guy were amazed at just how many different latches, snaps, angles, and annoyances this thing has. The way it attaches to the intake is another thing.

I agree that its not supposed to be mucked with much. That said, literally its just a brace to keep an 8 oz maf tube from moving around too much.

If I were designer for a day, I would have made the alu tabs on the intake bigger, and put holes in them. Then put holes in the tabs on the bracket.

Put two bolts in the tabs, and you're done.

AH1W-COBRA

great post,if your not a weapons system tech writer you should be one.

Frank_S500

This guy has no clue.

He has successfully cleaned the temperature sensor.
The MAF sensor is in the plastic housing and for a good reason, since the surface would be destroyed if somebody trys to clean it.

Cheers, Frank

bigben320e

I will need to change my air filters in the morning in the CLS. I noticed a a little rough idle, so I may need to clean my MAF too.

Quadcammer

Frank I'm not sure who you're referring to. I didn't take the pictures.

That said, spraying the maf with maf/elec. cleaner can solve a few poor running problems.

The surface of a maf is a hot wire, and it doesn't get destroyed at all.

Frank_S500

http://www.panchogun.com/FVWebPhotos...-MAF-5x100.jpg


This is the temperature sensor.

Frank_S500

Hi Olli.

The picture above the spray can, this is the temperature sensor.

Whole unit consists of two parts (seen in the picture before), the temperature sensor, and the hot film air mass sensor (inside!) the plastic housing.

Cheers, Frank

Quadcammer

yeah, the guy took a pic of the wrong wire, but he does recommend that you need to spray both sides, which would get to the hot wire.

Frank_S500

That does not make it better.
Any cleaning attempt damages the film. (There is still no wire inside)

Exchange is the only solution.

Cheers, Frank

i_am_amused

i thought this thread was going to be about the (alleged) "cup holder" in the W220 front console.

Cup holder? That's no stinkin' cup holder!

it looks like some mechanical engineering student's senior year project to design a pop-up holder for a crumpled tissue, except that a crumpled tissue is too heavy and would fly out when cornering.

Quadcammer

agree to disagree.

desiko

Hi, Oliver
Thanks for a really great post!!! I have been searching for days for a detailed description because of this bracket. This gives me 90% confidence that I could now do mine. Can you please elaborate just a little bit on getting the bracket back into the car? What did you modify?

Quadcammer

You know, I'm not sure If I remember what I modified, but I'm pretty sure I shaved down the latch in the center. If you snap a pic of it, I can show you what I did.

Pancho

This joker does not know how the MAF sensor works. He thinks the diode is a temperature sensor. I guess this is where some would interject "LOL". Reading, research, could help, but is likely not an option for him. Ignore his advice. Replacement is the solution only when it fails, or if you are prone to believe the dealership, and choose to foolishly part with your money. The MAF can be cleaned, and cleaning it works.

He thinks, and spews as gospel, that the diode is a "temperature sensor". The diode senses nothing. The diode is a component of the MAF, and it is a heating element. It heats up, and other components of the MAF measure its rate of cooling. This is how it determines the "mass", since hotter air and colder air have a different mass, and cool at different rates. That' is why it's called a "mass air flow" detector. Get it? If the diode, just the diode, gets dirty, then it will heat and cool at a different rate, and produce an inaccurate reading, and your MAF detector will not be working correctly.

Believe him, and unnecessarily shell out a few hundred to the dealer, and learn nothing. Follow the directions in the instructional, and clean your MAF for short money, and LEARN about your car. Simply put, his advice on the MAP is wrong--but, I think most of you already know that.

clkwork

You can't clean your MAF... who knew?

CRC Mass Air Flow Sensor Cleaner
http://www.youtube.com/watch?v=vPT8rL0noYg

Bosch MAF proper cleaning
part 1 http://www.youtube.com/watch?v=iX2Y44Np8VM
part 2 http://www.youtube.com/watch?v=B1HP3nu6hn8

Anyways, I've cleaned the MAF on every car I've owned (except the BS) and it works. Don't be a dummy - clean your MAF before buying a new one.

CarboyS

I thought the cupholder was overengineered...

bigben320e

Very good posts...