M271 - MAF Cleaning - HELP
Super Member
Joined: Mar 2004
Posts: 917
Likes: 0
From: michigan/ohio/indiana
2013 c300 4matic, 2002 c240
Ok I'm having a rough idle and going to clean the MAF sensor. I do NOT plan on removing the MAF. I'm just going to spray and hope the car runs in the morning. There are way too many threads on MAF cleaning and I need to know the preferred MAF cleaning solution. suggestions?
Thank you in advance.
Thank you in advance.
Super Member
Joined: Oct 2004
Posts: 761
Likes: 0
From: Oregon
2005 C55, 1988 260E, 2000 Chevrolet Silverado
Ok I'm having a rough idle and going to clean the MAF sensor. I do NOT plan on removing the MAF. I'm just going to spray and hope the car runs in the morning. There are way too many threads on MAF cleaning and I need to know the preferred MAF cleaning solution. suggestions?
Thank you in advance.
Thank you in advance.
Member
Joined: Jun 2006
Posts: 248
Likes: 0
From: Charlotte, NC
02 C230 Coupe
OK, so I just got scanned by a OBD tool yesterday at Auto Zone and it shot up error code P1101 or something like that "Check MAF sensor" something to that effect. Anywhoo, I'm curious as to what are we trying to achieve while cleaning the MAF....do I need to just spray spray, spritz spritz on the MAF with MAF cleaner? Or do I need to try and go as deep as possible into the intake or what? Like what kinda of things would cause the MAF to malfunction, that just cleaning it would fix? Are we talking about microscopic dirt or a leaf?
Super Member
Joined: Mar 2004
Posts: 917
Likes: 0
From: michigan/ohio/indiana
2013 c300 4matic, 2002 c240
I was just going to spray it and let it dry overnight hoping it would fix my problems.
Fortuanetly, I took the car to the dealer under warranty and it seems they just replace the entire maf.
Fortuanetly, I took the car to the dealer under warranty and it seems they just replace the entire maf.
Banned
Joined: Jul 2007
Posts: 28
Likes: 2
230
OK, so I just got scanned by a OBD tool yesterday at Auto Zone and it shot up error code P1101 or something like that "Check MAF sensor" something to that effect. Anywhoo, I'm curious as to what are we trying to achieve while cleaning the MAF....do I need to just spray spray, spritz spritz on the MAF with MAF cleaner? Or do I need to try and go as deep as possible into the intake or what? Like what kinda of things would cause the MAF to malfunction, that just cleaning it would fix? Are we talking about microscopic dirt or a leaf?
I was able to take out the MAF, clean it, and replace it in < 30 mins. Its very easy with another set of hands to help and the right tools. I took the advice above and changed the pressure loaded pipe clamp for a screw/nut type clamp and its even easier now.
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Super Moderator
Joined: Jul 2006
Posts: 3,365
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From: Orange County, CA
GMC - Miata - Trek - P-Car
There’s no rationale in sending VOC MAF solvents through the intake tract.
DIY M113 AMG shown
Last edited by splinter; Jan 16, 2012 at 01:14 AM. Reason: grane
Super Moderator
Joined: Jun 2008
Posts: 19,942
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
I think you are correct splinter - achieves a better job. The MAF cleaner going down the inlet won't do any more harm than starter fluid or sprays.
Fuel quality can have the slightest of effects on MAF fouling but can do nothing toward cleaning it. The fuel can't & does not get there.
Fuel quality can have the slightest of effects on MAF fouling but can do nothing toward cleaning it. The fuel can't & does not get there.
