C-Class (W202) 1995-2000: C 200 CDI, C 220 CDI, C 270 CDI, C 180, C 200 K,C 230 K, C 220, C230, C 280

MAF question

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Old Jan 24, 2010 | 02:21 AM
  #26  
xvvvz's Avatar
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From: Atlanta, GA
C230K
You can't order from Autohaus? Bummer. Would your local place let you try it and return if it did not help? It is so hard to diagnose the MAF/o2 sensor chain.
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Old Jan 24, 2010 | 03:00 PM
  #27  
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97C230
Maf

I don't thrust E bay seller when it comes to M B parts, thats why i order a Bosch MAF from Getcoolparts.com @ $149.00 shipped free in Calif. You can't be wrong on an original parts.
Reg. idling problem, why not connect scanner (OBD I not II based on your car model) to see what codes it throw?
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Old Jan 25, 2010 | 03:48 AM
  #28  
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From: Manila, Philippines
1994 C220
Ok, so I sent back the one on ebay for a money refund. Bought a Bosch for about $300 and tested it. Idling still plays a little but not as bad as the one I got on ebay. I drove it for about 50 miles or so and work great except again for the idling. It plays from 700-800rpm so I'll probably get a computer plug to my car what it says.

I can order from autohaus but I don't have much time since I only have one car and can't afford to let the car bug down at the moment. I really need it since I'm handling 2 restaurant stores quite far from each other plus I'm getting a new house constructed.
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Old Jan 27, 2010 | 12:30 PM
  #29  
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1998 C280
rfoo, did the bosch take care of the idling movement completely?

As I drive mine with the new MAF sensor, the idling problem either went away, or I don't notice it.

But, I do notice that the cold affects it. As the days have gotten colder, it take a little more time to warm up (and not sputter), but as soon as it warms up in the slightest, the sputtering goes away. (temps are currently about 20F, which I think is about -6C)
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Old Jan 27, 2010 | 01:48 PM
  #30  
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From: SoCal
98 Brilliant Silver E320 Wagon
Originally Posted by rfoo
Hey Wesrick,

Do you have any DIY on how to replace the MAF sensor itself? I can't get the screw out and don't know what the right tools are. Thanks.
Most MAF inserts require a Torx Plus bit. Torx Plus bits have 5 points not 6 as Torx. Also, bit must have security pin hole in center. As a work around you can use a pair of pliers on the shoulder of the fastener head.
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Old Jan 28, 2010 | 12:03 AM
  #31  
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From: Manila, Philippines
1994 C220
Originally Posted by wesrick
rfoo, did the bosch take care of the idling movement completely?

As I drive mine with the new MAF sensor, the idling problem either went away, or I don't notice it.

But, I do notice that the cold affects it. As the days have gotten colder, it take a little more time to warm up (and not sputter), but as soon as it warms up in the slightest, the sputtering goes away. (temps are currently about 20F, which I think is about -6C)
Yup, completly fixed the problem now. I think it has a learning curve and needs a reset to smooth the idling problem. It works just like the original now.

Originally Posted by RichardM98
Most MAF inserts require a Torx Plus bit. Torx Plus bits have 5 points not 6 as Torx. Also, bit must have security pin hole in center. As a work around you can use a pair of pliers on the shoulder of the fastener head.
Thanks for the info, I'll keep that in mind for future reference. I just bought a brand new bosch and plugged it. Works perfect now.
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