danev6972

I took out the MAF sensor to clean it. I don't know that I did wrong but it idles very roughly to the point of shutting down and I hear a thumping/clunking sound in the engine. I even took it out & put it back 3 times to make sure it is set right.
I was going to clean the throttle body but I could not find my T40.
Do you think something got into the TB?..or do I need to replace the rubber seal/gasket?...maybe I broke the MAF.
I was fine before I messed around with it..bummer!

Help please!!!!!!!!

pcy

Can you take a photo showing the MAF/TB area? If your car has M112 engine, couple of hoses that connect to the TB area may have been disconnected - causing the rough idle.

pcy

In the picture below, look at the part labeled #158 and the associated hoses. That 158 may have come out of top of TB. Re-check those hoses.


Upon first glance, by looking at the intake tubing, you may think I posted the picture for wrong engine. Trust me, if you have M112 engine, the ventilation hoses and part #158 are on M112 engine. This picture is acutually for M112 on a W163 (ML). Just ignore the intake tubing in the picture. Just concentrate on part #158 and associated hoses.

Glyn M Ruck

C240 diagrams.

Do as pcy says.

MAKE SURE YOU DID NOT DROP SOMETHING DOWN THE INLET MANIFOLD - YOU COULD BEND A VALVE.

danev6972

FOUND IT!!!!!!!!!!!!-- see attachment--

Hose must have came out or something. What's that part called anyway?
I guess now I know what it does...

Next is TB cleaning...Hope nothing goes wrong.

YOU GUYS ROCK!!! Thank you for your help.

pcy

that metal pipe is a vaccum hose, it fits on top of #158. Several hoses connect to that single plastic connector. That connector just attaches to the TB, no screws, just push it down.

danev6972

Thanks Glyn & Pcy.

Do you guys know the name & part no. for #113 & #116? It's the rubber seal.
I think I will replace mine...Hope you can buy them separately.

Thanks again.

pcy

112-159-00-80 GASKET
112-159-01-80 GASKET

Although both of those seals look the same, they both have slightly different diameters.

I bought these about a month ago. MB dealer charged me $7 each.
These seals are $4 each from RMeuropean dot com.

pcy

one gasket fits between MAF and the plastic elbow. The other gasket fits between the plastic elbow and Throttlebody.

danev6972

Ok I tried to replace the gaskets today. It did not seem to fit in the housing correctly...so i compared the part #s the old ones (#113) A112-141-18-80 and (#116) A112-141-17-80. Now are the part #'s been changed to the ones above?

Bought it from rmeuropean.com [Application: C240 Sedan M112.912- 203.061]

Pls. help...can't use my car until I have the right part...also broke the air hose connector so I have to buy that too.

pcy

yes, the part numbers I posted are the updated part numbers. The part numbers you posted were older part numbers. Please see the attachment (copy/paste from EPC)

pcy

I have replaced those gaskets on my C320 (M112). Line-up the notches in the gaskets with the the elongated holes in the plastic elbow housing and massage it in.

danev6972

Thanks PCY...I will work on it once I get the rest of the part/s I need.

RADHAMES

hi,

i have a w220 s500, and is a little rough at idiling, and sometimes turn on the chek engine light, i says to check the MAF sensor.

whe to my mechanic, and he said that the gasket is a little bit loose, for the time, that i have to get a new one, my gasket number is A 112 141 02 80.

but when i look i found on ebay A 112 159 00 80, are they the same?

what numbers should i look up for?

thanks

picture attached.

pcy

For a part like that gasket, it's best to look up in EPC or check with parts dept at your local MB dealer. There may be a revised version/part number.

mguerrero

where did you get your EPC?

samaritrey

http://epc.startekinfo.com/epc/login.jsp

its free with a US credit card

mguerrero

thanks so much! just signed up!