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W210 2002
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10 Posts
Discussion Starter #1
:confused:
HI Guys i put a brand new original MAF sensor and the car worked just fine for a week. Yesterday started to make the some shit shaking and cutting out and i'm getting tired of this. I brought it to a computer, they didn't find anything.
I did put the old MAF again, then i put the new one again and the car get stabilized for while, but then start to increased RPM without reason and wasting a lot of fuel.

I replace the air filter, and again no luck.

Any idea whats happening ??? This car start to disappoint me.
 

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1999 E55, 2001 E320, 1990 560 SEC, 2004 ML350, 2001 ML55, 1995 S500, 1998 SL500, 2010 E550 Sport zoo
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7,035 Posts
What was the reason you replaced your MAF in the first place ?

Where did you purcahse your MAF ? MAF's made by China/India suppliers are notably unreliable and amazingly often sold by major retail auto parts stores.

So where did you buy your MAF and how much did you pay ?
 

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W210 2002
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10 Posts
Discussion Starter #3
Local Mercedes dealer - 368$ + tax, it was changing RPM and shaking, cutting out before.
After the original one last a week, starts the same. It feels like is working on less cylinders but the codes are p0101, which is air circle. Its nightmare.
 

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2001 E430 4matic
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419 Posts
Seems like each time you touch the MAF your problem gets resolved for a week and starts again. I would very closely inspect the MAF connection. Inspect it for corrosions, broken wires ... spray with MAF cleaner, let it dry and try again. Check also for any vaccum leaks.
 

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1999 E55, 2001 E320, 1990 560 SEC, 2004 ML350, 2001 ML55, 1995 S500, 1998 SL500, 2010 E550 Sport zoo
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7,035 Posts
Connector corrosion is one good direction - also can be "seating" of the MAF on the seal especially with V8's - another cause can be contamination if a silicone spray product has been used in the engine compartment
 

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Registered
W210 2002
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10 Posts
Discussion Starter #6
Connector corrosion is one good direction - also can be "seating" of the MAF on the seal especially with V8's - another cause can be contamination if a silicone spray product has been used in the engine compartment
Guys i checked it out, i coudnt see any vacuum leaks around MAF or other pipes.

Today starts to make the some bull sh*ts like before, cranking, hesitating and low- high RPMs.

Is anybody knows any relation between MAF, Vacuum pump and central locking ???
 
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