2012 S350 MAF sensor replacement

P

Pounder

Guest
Good morning I thought I would throw this out to the forum.

I have a faulty MAF sensor and have been told the whole intake unit must be replaced which is £700!

Has anyone managed to remove the individual sensors and do you have any feedback as to the correct procedure to do so?

Thank you in advance.
 

Wighty

Senior Member
Joined
Aug 4, 2016
Messages
13,535
Reaction score
12,633
Location
Sunny Essex
Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
Good morning I thought I would throw this out to the forum.

I have a faulty MAF sensor and have been told the whole intake unit must be replaced which is £700!

Has anyone managed to remove the individual sensors and do you have any feedback as to the correct procedure to do so?

Thank you in advance.
Did someone who has access to MB Star diagnostics , and a knowledge of MB’s tell you it need a new MAF ?
 

mioba

Senior Member
Joined
Feb 19, 2006
Messages
7,965
Reaction score
4,717
Location
Nottingham and Köln
Your Mercedes
W124/E200, W220/S320CDI, W205/C200, W251/R350CDI 4Matic
if assuming its a correct diagnosis, then no luck.

Mafs built into the batwing manifold.
 

Wighty

Senior Member
Joined
Aug 4, 2016
Messages
13,535
Reaction score
12,633
Location
Sunny Essex
Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
Is this a petrol or diesel ? Because the diesels don’t usually have maf issues
 
OP
P

Pounder

Guest
  • Thread Starter
  • Thread starter
  • #5
Did someone who has access to MB Star diagnostics , and a knowledge of MB’s tell you it need a new MAF ?
Hi yes it’s been diagnosed by a Merc Indi and my cheap OBD reader finds the same fault codes it’s the left MAF sensor.
 
OP
P

Pounder

Guest
  • Thread Starter
  • Thread starter
  • #6
if assuming its a correct diagnosis, then no luck.

Mafs built into the batwing manifold.
Yes that’s what I’ve been told and the cheapest full unit is £699!
 

mioba

Senior Member
Joined
Feb 19, 2006
Messages
7,965
Reaction score
4,717
Location
Nottingham and Köln
Your Mercedes
W124/E200, W220/S320CDI, W205/C200, W251/R350CDI 4Matic
First port of call is then to cleam them if you are handy, get the batwing off and give them a spray with carb cleaner/contacts cleaner - make sure its fully dry before you replace.
Get the rubber seals replaced at the same time while batwing is off.
Its not the best deign by MB, be careful as the plastic getts brittle at the turbo end / plastic and hot turbo not a good combi.

Good luck
 

John77

Senior Member
Joined
Nov 19, 2018
Messages
729
Reaction score
210
Your Mercedes
E200 Estate 2011, 2009 SLK 200
First port of call is then to cleam them if you are handy, get the batwing off and give them a spray with carb cleaner/contacts cleaner - make sure its fully dry before you replace.
Get the rubber seals replaced at the same time while batwing is off.
Its not the best deign by MB, be careful as the plastic getts brittle at the turbo end / plastic and hot turbo not a good combi.

Good luck

Good morning I thought I would throw this out to the forum.

I have a faulty MAF sensor and have been told the whole intake unit must be replaced which is £700!

Has anyone managed to remove the individual sensors and do you have any feedback as to the correct procedure to do so?

Thank you in advance.

Hi I have just changed my MAF on my 2005 E200 Estate. Yes different engine, different scenario, but I went through the MAF clean etc with a hope to not buy a new one, but it didn't make any difference and 2 days later engine light on and same fault. On this engine it is relatively easy, if you have the correct tools to remove the air filter etc, to get the maf off and I gave it a thorough clean with carb cleaner. I also tried a cheap version to replace it, but the car didn't like it, so I bought one from my local MB Dealer. Now all is fine. By the way the ones that you get from MB are not new, but remanufactured, unless you specify new and then they are a LOT more expensive. Personally I would just save all the agro and change the MAF for an MB original. Quicker and cheaper in the long run.
 

Wighty

Senior Member
Joined
Aug 4, 2016
Messages
13,535
Reaction score
12,633
Location
Sunny Essex
Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
Any on eBay or a breakers like Dronsfields ?
 

ajlsl600

Senior Member
Joined
Nov 18, 2013
Messages
9,089
Reaction score
6,119
Location
france
Your Mercedes
clk3202001,sl6002003 with everything regrettably sold ,A class 170cdi auto. NG/TF1800 ML250
MAF.... now have to buy with intake at 699 !! Christ.might as well just leave ones cc with dealer,which I am sure will suit purchase them fine.cars and makers are going nuts.I changed mine on clk 10 yr ago ten min job and around 80 quid.what was wrong with that system ?
If al this was known at purchase would we still buy em ?
 

mioba

Senior Member
Joined
Feb 19, 2006
Messages
7,965
Reaction score
4,717
Location
Nottingham and Köln
Your Mercedes
W124/E200, W220/S320CDI, W205/C200, W251/R350CDI 4Matic
good points above. mercs dont like aftermarket.
merc are top draw with remanufactured parts. same warranty as new at much less the price.
 

You lost your key ? Or maybe you need a spare! Your vehicle imobilliser does not respond anymore? WE CAN FIX THEM ALL !! Mobile ! Save Time and Increase Profits With us !
Top Bottom