1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Dear Guest, Official Club stickers are now available, if you have not already ordered some go grab them now! To order click this Link ----> CLICK ME Go get them whilst stocks last! To dismiss this notice click the cross to the right of this message.

[SOLVED] CLK W208 - Cleaning MAF air flow

Discussion in 'Engine' started by sambam2006, Mar 8, 2010.

  1. sambam2006

    sambam2006 Active Member

    Messages:
    85
    Joined:
    Dec 18, 2008
    Car:
    CLS 63 AMG
    Hi guys,

    I've seen a few guides on how to clean the maf sensor for the clk 430 but non for the clk 230k :(, the clk 430 has an airbox whereas the clk 230k doesn't where can I find the maf air flow in my car? As I want to clean it so I can fix the issues below.

    My car is currently causing misfire problems, gear jerking, speed issues. No acceleration or lack of acceleration when putting the foot down.
    No errors on the dash board.

    Here's a few pics:
    High Res Pics (so u can zoom in ;) lol)

    http://i47.tinypic.com/flvati.jpg
    http://i48.tinypic.com/2mfy8lk.jpg
    http://i47.tinypic.com/345n5nn.jpg

    Regards
     
    Last edited: Mar 8, 2010
  2. npuk

    npuk Hardcore MB Enthusiast

    Messages:
    4,239
    Joined:
    Nov 12, 2009
    Location:
    London
    Car:
    A180 CDI Avantgarde SE (2008)
    Try finding the part on Google Translate

    From another forum:

    MAF Sensor
    Replace the MAF sensor (aka Mass air flow meter):

    1: Remove the snorkels that go from the front grill area to your intake housing. These simply snap off and out.

    2: Lift your engine cover off of your engine. There are 4 clips holding your cover down. Simply just pull up and they will detach.

    3: On the back portion of your intake (behind the engine, where your intake housing connects to the engine, you will see the MAF sensor. Using a flat head screwdriver, unclip the metal clip on the back of the MAF and then unclip the plastic clips on the front.

    4: Unplug the wire on the right and place it somewhere where you will find it again. Then gently pull the MAF out of it’s place and reverse the directions to put it back together.
     
    Last edited: Mar 8, 2010
    1 person likes this.
  3. 1nevster

    1nevster Member

    Messages:
    43
    Joined:
    Feb 26, 2010
    Location:
    Liverpool
    Car:
    C280, N Reg, W202
    Looking at your expansion bottle near the cap looks like you have overheating issues maybe? Sure you havent a head gasket issue?
     
  4. C230kompressor

    C230kompressor Hardcore MB Enthusiast

    Messages:
    407
    Joined:
    Nov 18, 2009
    Car:
    1997 C230 Kompressor SPORT(SOLD) ---1993 C180 ESPRIT(SOLD)---1989 190E Cosworth REP(SOLD)
    hi there
    slightly different car (w202)
    but same engine and same layout here is the air mass
    [​IMG]

    just out of the right hand side of the intercooler!
    air mass didnt put any lights up on my dash but there was bout 6/7 codes in the EMS
    p0300 random misfire detected
    p0301 misfire cylinder 1
    p0302 misfire cylinder 2
    p0303 misfire cylinder 3
    p0303 misfire cylinder 4
    p0100 mass or volume air flow
    p0170 fuel trim bank 1
     
    Last edited: Mar 8, 2010
  5. OP
    OP
    sambam2006

    sambam2006 Active Member

    Messages:
    85
    Joined:
    Dec 18, 2008
    Car:
    CLS 63 AMG
    Thanks everyone and thanks for the picture mate :).

    I got the maf out and cleaned it, seemed fine to me, no oil leak, no damage, wasn't that dirty a few flies. I put it back together and connected it up then started the car, took it for a spin but still same problem car doesn't run properly :(, still no acceleration power when I put my foot down, it struggles.

    Don't know what else to do?

    Yeah that happened in the snow when my car heated up quite abit when I got stuck :(.

    How can I check the head gasket?


    Thanks again guys for your help :), i'll post pictures up when I get my internet back.
     
  6. andy27168

    andy27168 Hardcore MB Enthusiast

    Messages:
    4,184
    Joined:
    Nov 27, 2004
    Location:
    Southampton
    Car:
    1997 C230K, 1999 C43/55 AMG
    Hi,
    Just because you have cleaned doesn,t mean its ok, try running the car with the MAF disconnected.
     
  7. OP
    OP
    sambam2006

    sambam2006 Active Member

    Messages:
    85
    Joined:
    Dec 18, 2008
    Car:
    CLS 63 AMG
    Yep I tried that aswell disconnected the maf, drove and it done the same as before but this time the car cut off when I parked on the side of the road so I connected the maf back up and drove home.

    how can I tell if a maf is damaged then?

    thanks :)
     
  8. Howard

    Howard Hardcore MB Enthusiast

    Messages:
    18,624
    Joined:
    Apr 23, 2004
    Location:
    Toad Hall
    Car:
    CLS 500 / A 150
    Lack of acceleration when you put your foot down ...
     
  9. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

    Messages:
    18,087
    Joined:
    Feb 8, 2007
    Location:
    Horndean, Portsmouth, Hampshire, Southsea
    Car:
    C43 AMG with a 55 engine and supercharger, MK1 Caddy, S500, etc
    Don't clean it. It rarely works properly afterwards.

    Get it diagnosed first then replace it if it is faulty. It WILL save you money in the long run.
     
  10. OP
    OP
    sambam2006

    sambam2006 Active Member

    Messages:
    85
    Joined:
    Dec 18, 2008
    Car:
    CLS 63 AMG
    Thanks again guys for your help.

    Having a bad day today now the car isn't really moving :(, not really any acceleration power when I slightly touch the pedal or put my foot down.

    All I done was reset the car (disconnected the battery) :(

    Car was working fine before that.

    It starts but makes horrible noises currently waiting for RAC to come down my house to see if he can fix the problem temporary so I can take it down my local garage to get diagnostics done.

    Here's a few pictures of my maf sensor:

    http://i40.tinypic.com/2lj591z.jpg
    http://i44.tinypic.com/73m5x2.jpg
    http://i43.tinypic.com/2rcl7bk.jpg
    http://i44.tinypic.com/kb96q1.jpg

    Here's todays video of my current car crisis:
    Video 1: http://www.youtube.com/watch?v=XGfGrd1co20
    Video 2: http://www.youtube.com/watch?v=JdVfELspFmE
     
    Last edited: Mar 12, 2010
  11. chiefski26

    chiefski26 Banned

    Messages:
    402
    Joined:
    Jul 23, 2008
    Location:
    london
    Car:
    c63 c43
    Don't clean it. It rarely works properly afterwards.

    Get it diagnosed first then replace it if it is faulty. It WILL save you money in the long run.


    +1
     
    1 person likes this.
  12. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

    Messages:
    18,087
    Joined:
    Feb 8, 2007
    Location:
    Horndean, Portsmouth, Hampshire, Southsea
    Car:
    C43 AMG with a 55 engine and supercharger, MK1 Caddy, S500, etc
    It sounds like the throttle flap needs re-setting as well as your air mass issue. Leave the ignition on for 15 minuites and try again.
     
  13. OP
    OP
    sambam2006

    sambam2006 Active Member

    Messages:
    85
    Joined:
    Dec 18, 2008
    Car:
    CLS 63 AMG
    RAC just left and said its something to do with the fuel, fuel overflow. He said the fuel sensor might be gone and you could smell the petrol.

    And the maf sensor may be the other issue as well as the fuel sensor.
     
  14. OP
    OP
    sambam2006

    sambam2006 Active Member

    Messages:
    85
    Joined:
    Dec 18, 2008
    Car:
    CLS 63 AMG
    Sorry for double posting.

    Got my car fixed :).

    Description of work done:
    Free off turbo regeneration valve and re-calibrate (apparently it was clogged and this causes the maf sensor to fail) which also had to be replaced.

    New maf sensor and reset adaptions.

    Problem solved :D.

    Thanks everyone for your help
     
  15. Jacks48

    Jacks48 New Member

    Messages:
    2
    Joined:
    Sep 11, 2011
    Car:
    CLK 230 Cabriolet
    How much did the parts cost?
     
  16. Rock

    Rock Member

    Messages:
    52
    Joined:
    Mar 4, 2011
    Car:
    Mercedes C200K
    Sambam2006 i have mecedes C200k and my car jerks everytime it comes to a stop???? not sure whats wrong with it? any suggestions?
     

Share This Page