W203 C180k MAF Errors - Be aware - Page 2 - MBClub UK

sampit · 29-06-2009, 09:59 AM

Well I had a right wasted weekend scratching my head trying to remove my airbox,to check the vacuum pipes very close to using a hammer on it! my patients was running thin how the bloody hell do you get the air box off a w203 c18 coupe
the best I can do is remove the air box cover then remove the filter remove two torxs top of the MAF that connect to the airbox.
No idea how you get to the bottom one out, I can only see one torx that may hold the airbox on and that's in a plastic tube on the the Maf housing
is it really that difficult, can anyone help.

sampit

lynall · 29-06-2009, 10:55 AM

Havent a clue! but on mine its held onto the inner wing by rubber grommets and to remove you simply give it a good tug, when refitting grease the rubbers makes it easier next time.

Lynall

sampit · 29-06-2009, 09:45 PM

Thanks calm

You have Just saved me a fortune as my vacum pipe was split clean in halve

happy days!

Flyer · 29-06-2009, 09:52 PM

Hmm, any chance this would apply to a 208? Mine is suffering from poor acceleration (like none at all if I floor the accelerator, nearly got me into serious trouble when overtaking yeasterday

) and rough idle .... but this is only when I've tried to accelerate hard. If I'm gentle, I don't have any problems and can cruise at 80-90 OK.

All ready to replace the MAF unless this could be a similar problem??

philsas · 13-09-2010, 02:41 PM

could VRAJA say how he got on - his symptoms are exactly the same as mine !!

renault12ts · 13-09-2010, 03:17 PM

Quote:

Originally Posted by philsas

could VRAJA say how he got on - his symptoms are exactly the same as mine !!

Probably not, he posted that in June 2009, and has not been on here since March this year.

Welcome.

tony_1170 · 11-01-2012, 04:46 PM

Sorry to follow up on this, Ive seen there are threads else where but this seemed closer to the issue I have.

I replaced the MAF after the engine light came on and the code said MAF error. Now I get the error wheres its too rich.

I thought I'd have a look to see if I could find this vacuum pipe people here have been referring to. I have a 2001 W203 C200K

I just cant find it. I removed the entire airfilter assembly and looked for every pipe there could be that looked as though it could be the culprit - nowt there.

I also found this vacuum pipe hanging free, is that right?

Though I did find a loose pipe on the back left hand side at the final air intake area before the inlet manifold. See pics. red arrow.

Its now connected!! Lets see if the error code comes back! Thankfully I only paid £40 for the MAF from ebay and I still have the old one

Auto-mobile · 11-01-2012, 10:03 PM

I have had lots of problems with eml lights on, (111 engine) throttle body clean has cured them.

mauno · 14-01-2012, 09:08 PM

Quote:

Originally Posted by tony_1170

Sorry to follow up on this, Ive seen there are threads else where but this seemed closer to the issue I have.

I replaced the MAF after the engine light came on and the code said MAF error. Now I get the error wheres its too rich.

I thought I'd have a look to see if I could find this vacuum pipe people here have been referring to. I have a 2001 W203 C200K

I just cant find it. I removed the entire airfilter assembly and looked for every pipe there could be that looked as though it could be the culprit - nowt there.

I also found this vacuum pipe hanging free, is that right?

Though I did find a loose pipe on the back left hand side at the final air intake area before the inlet manifold. See pics. red arrow.

Its now connected!! Lets see if the error code comes back! Thankfully I only paid £40 for the MAF from ebay and I still have the old one

Tony, your m111 is screwed.The missing part is the ait filter box.Meaning your car breathing dirty air!

mauno · 14-01-2012, 09:11 PM

Buy one ASAP from a scrapyard

astamir · 15-01-2012, 12:45 AM

Stay away from w203 c class mercs !!!!!!!!!!!!!

mauno · 15-01-2012, 11:29 AM

Quote:

Originally Posted by astamir

Stay away from w203 c class mercs !!!!!!!!!!!!!

You wrong mate!Stay away from any car serviced by an idiot.W203 and M111 are very reliable.If you treat it right.

mauno · 15-01-2012, 11:29 AM

tony if you can't find one,message me

tony_1170 · 21-01-2012, 05:09 PM

Ahh, I should have worded that better - I removed the entire airfilter assembly before I took the pic - its all there

I was just trying to show that I cant find this vacuum line under the airfilter assembly that many others had mentioned.

That said, the light has just come back on again, so popping that U shaped pipe back on made no difference. So Im back to square one.

So far:
1) MAF error code, bought OEM MAF from ebay eBay - The UK's Online Marketplace

2) No MAF error, now get P0172 #1 System too Rich

Stripped out air filter housing, checked all pipes, found that one U pipe that had popped off, put back on, checked all pipes for leaks (well signs of wear and cracks) all fine.
Mileage is round town on auto box 25 / 28
Car has 70k

3) When doing a cold start, engibe does a little judder - but settles quickly, eg 3 seconds

4) never stalls or has issues

Ive read posts on the o2 sensor.. not sure if I could do that on my own..

nigel cross · 21-01-2012, 05:56 PM

It could be the MAF still as it is not an original Bosch one, from your link.

11-01-2012, 04:46 PM	#22
tony_1170 New Member Join Date: Jan 2012 Car: W203 2001 Posts: 9	Sorry to follow up on this, Ive seen there are threads else where but this seemed closer to the issue I have. I replaced the MAF after the engine light came on and the code said MAF error. Now I get the error wheres its too rich. I thought I'd have a look to see if I could find this vacuum pipe people here have been referring to. I have a 2001 W203 C200K I just cant find it. I removed the entire airfilter assembly and looked for every pipe there could be that looked as though it could be the culprit - nowt there. I also found this vacuum pipe hanging free, is that right? Though I did find a loose pipe on the back left hand side at the final air intake area before the inlet manifold. See pics. red arrow. Its now connected!! Lets see if the error code comes back! Thankfully I only paid £40 for the MAF from ebay and I still have the old one Last edited by tony_1170; 11-01-2012 at 04:59 PM.

21-01-2012, 05:09 PM	#29
tony_1170 New Member Join Date: Jan 2012 Car: W203 2001 Posts: 9	Ahh, I should have worded that better - I removed the entire airfilter assembly before I took the pic - its all there I was just trying to show that I cant find this vacuum line under the airfilter assembly that many others had mentioned. That said, the light has just come back on again, so popping that U shaped pipe back on made no difference. So Im back to square one. So far: 1) MAF error code, bought OEM MAF from ebay eBay - The UK's Online Marketplace 2) No MAF error, now get P0172 #1 System too Rich Stripped out air filter housing, checked all pipes, found that one U pipe that had popped off, put back on, checked all pipes for leaks (well signs of wear and cracks) all fine. Mileage is round town on auto box 25 / 28 Car has 70k 3) When doing a cold start, engibe does a little judder - but settles quickly, eg 3 seconds 4) never stalls or has issues Ive read posts on the o2 sensor.. not sure if I could do that on my own..

29-06-2009, 09:59 AM	#16
sampit New Member Join Date: May 2008 Posts: 3	Well I had a right wasted weekend scratching my head trying to remove my airbox,to check the vacuum pipes very close to using a hammer on it! my patients was running thin how the bloody hell do you get the air box off a w203 c18 coupe the best I can do is remove the air box cover then remove the filter remove two torxs top of the MAF that connect to the airbox. No idea how you get to the bottom one out, I can only see one torx that may hold the airbox on and that's in a plastic tube on the the Maf housing is it really that difficult, can anyone help. sampit

29-06-2009, 10:55 AM	#17
lynall Hardcore MB Enthusiast Join Date: Jul 2008 Location: Kent Car: The silver one. Posts: 3,166	Havent a clue! but on mine its held onto the inner wing by rubber grommets and to remove you simply give it a good tug, when refitting grease the rubbers makes it easier next time. Lynall

29-06-2009, 09:45 PM	#18
sampit New Member Join Date: May 2008 Posts: 3	Thanks calm You have Just saved me a fortune as my vacum pipe was split clean in halve happy days!

29-06-2009, 09:52 PM	#19
Flyer Hardcore MB Enthusiast Join Date: Oct 2002 Location: Cheshire Car: CLK320 CDi Sport Posts: 1,634	Hmm, any chance this would apply to a 208? Mine is suffering from poor acceleration (like none at all if I floor the accelerator, nearly got me into serious trouble when overtaking yeasterday ) and rough idle .... but this is only when I've tried to accelerate hard. If I'm gentle, I don't have any problems and can cruise at 80-90 OK. All ready to replace the MAF unless this could be a similar problem??

13-09-2010, 02:41 PM	#20
philsas New Member Join Date: Sep 2010 Car: w204 Posts: 14	could VRAJA say how he got on - his symptoms are exactly the same as mine !!

11-01-2012, 10:03 PM	#23
Auto-mobile Hardcore MB Enthusiast Join Date: Oct 2011 Car: Mercedes e320 v6 c43 AMG Posts: 312	I have had lots of problems with eml lights on, (111 engine) throttle body clean has cured them.

14-01-2012, 09:11 PM	#25
mauno Hardcore MB Enthusiast Join Date: Dec 2011 Location: Braintree Car: W203 C200K T model classic/ W168 1.4 avantgarde Posts: 295	Buy one ASAP from a scrapyard

15-01-2012, 12:45 AM	#26
astamir Hardcore MB Enthusiast Join Date: Dec 2011 Posts: 196	Stay away from w203 c class mercs !!!!!!!!!!!!!

15-01-2012, 11:29 AM	#28
mauno Hardcore MB Enthusiast Join Date: Dec 2011 Location: Braintree Car: W203 C200K T model classic/ W168 1.4 avantgarde Posts: 295	tony if you can't find one,message me

21-01-2012, 05:56 PM	#30
nigel cross Hardcore MB Enthusiast Join Date: Jan 2005 Location: Surrey Car: w203 200 Komp W164 ML350 Posts: 1,986	It could be the MAF still as it is not an original Bosch one, from your link.

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