Question about Mercedes-Benz C-Class

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My2002 c180k is hunting and engine light on been on computer,camshaft sensor been changed and both camshaft adjuster magnets,mass airflow meter aswell and still happening.computer still keeps saying camshaft adjuster can someone help me cos i'm at the end of my tether and really getting me down, many thanks tony

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  • Anonymous Mar 20, 2014

    do i have to adjust the magnet after i replace it

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I had many problems with MB star but before u spend more money bring your car to a MB dealer if not u will spend a lot more and u still wont find the problem

Posted on Sep 16, 2010

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Symptoms of faulty air flow sensor


  • How to Detect and Clean a Faulty Mass Airflow Sensor ... www.carsdirect.com > Car Repair > Engine Repair 2012-02-24 · Symptoms of a Faulty Mass Air Flow Sensor ... Here are some of the most common symptoms of a faulty mass airflow sensor: ... CARSDIRECT IS AN ...
  • Mass Airflow Sensor: An Easy Fix for Big Problems from a ... www.airtexproducts.com/news-blog-mass-airflow-sensor-an-easy-fix... news,blog,mass,airflow,sensor,an,easy,fix,for,big,problems,from,a,little,instrument. ... Mass Airflow Sensor: ... What Are the Symptoms of a Faulty Mass Air Flow Sensor?
  • Signs & Symptoms of a Faulty Mass Air Flow Sensor www.geeksofcars.com/list_5794328_signs-mass-air-flow-sensor.html Signs & Symptoms of a Faulty Mass Air Flow Sensor. The Mass Air Flow Sensor is a device used on many fuel injected automobile engines to measure the density of air ...
  • See Bad Mass Airflow Sensor Symptoms on YouFixCars.com www.youfixcars.com/mass-airflow-sensor.html Video embedded · Mass airflow sensor problems can turn on the check engine light. They can also cause a variety of other symptoms before the ... How to clean mass air flow sensor ...
  • How to ' Tell If You Really Need a Mass Air Flow Sensor ... www.youtube.com/watch?v=aDlHCjgYf8s
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    Jul 09, 2016 | Cars & Trucks

    2 Answers

    Where is the mass airflow sensor located on a 1997 Buick Skylark 2.4 liter


    Right off the air box its the first sensor on the vehicle .
    The air is sucked through the air filter then goes through the mass air sensor so its in the air duct .
    They have a spray can cleaner you have to remove the clamps and connections and remove it .Spray it with the cleaner some times it works .
    Its a rather expensive part but its vary important because it is the first sensor that the computer reads to adjust all engine controls .
    Also don't through it away you will get a lot for the re core value.

    Jun 15, 2016 | Buick Cars & Trucks

    1 Answer

    Do you know where the mass airflow sensor is located


    Mass flow sensor - Wikipedia, the free encyclopedia

    https://en.wikipedia.org/wiki/Mass_flow_sensor
    WikipediaJump to Hot wire sensor (MAF) - )[edit]. A hot wire mass airflow sensor determines the mass of air flowing into the engine's air intake system.Moving vane meter - ‎Hot wire sensor (MAF) - ‎Coldwire sensor

    Aug 30, 2015 | Cars & Trucks

    1 Answer

    I have a 2001 chevy blazer that shows MAS issues back fires in throttle body


    the mass airflow sensor needs replaced, can't be cleaned, when its bad thats it. second, tried to replace crankshaft sensor ? did you ? if you did , it must be adjusted so its perfectly flush, parralell with crank, it reads magnetic strips that send info to computer, works together with camshaft sensor, cam & crank must be in time with each other, timing is everything, cause you don't have a distributor. reinspect your crank sensor to make sure its mounted correctly. replace your MAS, with exact replacement, not aftermarket, see how this works, I'll be around to help you

    Feb 20, 2013 | 2001 Chevrolet Blazer

    1 Answer

    Engine cut out while driving, won't start.


    Lets start at the beginning.
    If you have a V6 engine you have two cam sensors. And the problem could be the cam sensor(s) is not in sync with the crank sensor due to a problem with the sensor or the timing belt.
    Code 340 is for bank one sensor one. You could have as many as 4 sensors depending on which engine you have.
    The mass airflow meter code could keep the engine from starting.
    The cruise control problem could be related to the cam-crank sensor issue or something else.
    You should only have one crank sensor and it is usually near the crank pulley in the front of the engine.

    Sep 29, 2012 | 2006 Dodge Stratus

    1 Answer

    When I get to 60 mph or when I first crank up my 2000 Buick lasbre stalls.


    First check fuel pressure to specification. My suggestion is a faulty mass airflow sensor. At idle lightly tap on mass airflow sensor with screwdriver handle and listen for erratic change in engine rpm. Wiggle airflow sensor connector and listen for any changes also. Replace sensor if rpm changes.

    Mar 25, 2012 | 2000 Buick LeSabre

    1 Answer

    My 1991 240DL volvo has a hard start, and while idling, goes up and down, then eventually stalls out. The air flow sensor/air mass meter? was unhooked, and the car idled smoothly. Is it true that the car...


    When you unplug the mass airflow sensor, the car goes into "limp home" mode in which it runs full rich. Generally speaking, if a car runs better with the mass airflow sensor unplugged than with it plugged in, the mass airflow sensor has failed.
    However, the drifting idle tends to make me want to look for vacuum leaks and check the rear temperature sensor on the driver side of the head. I suspect that running over-rich is compensating for the vacuum leak so the car keeps running.
    If you have a propane torch or a can of diesel starting ether, spray it around the intake manifold while the car is idling and see if the engine speeds up. If so, then you have found a vacuum leak.
    If it were mine, I would buy a new intake manifold gasket and replace it as a routine maintenance item. It is not expensive or difficult to replace except that if you are like me, you WILL drop at least one nut, and there are several great hiding places on that side of the engine where the nuts go to hide when you drop them. You will need a magnet to recover them. You don't need to pull the manifold clear off, you just have to pull it clear of the bolts so you can slip in a new gasket. You can leave the throttle cables and most of the other connections hooked up
    If you know how to use an ohm meter, you might consider getting a manual for this car and looking up the appropriate resistance/temperature values and checking that rear temperature sensor.
    While you are replacing that intake manifold gasket, check all the vacuum ports to make sure they are clear, and check all the vacuum hoses to make sure they are intact. Also check the tubes between the mass airflow sensor and the throttle body for cracks. While you have those air tubes off, clean the throttle body and the idle air control valve with some carb cleaner. Spray a little carb cleaner through the mass airflow sensor as well. Actually, there is a special spray for cleaning mass airflow sensors that is more gentle, but I have used carb cleaner on them many times with no apparent ill effects.
    If it turns out that the mass airflow sensor has failed, that will run some $$, but having a fresh intake manifold gasket and clean throttle body and no vacuum leaks will be worth your time and money and make the car run better when you are done.

    Jun 07, 2011 | Volvo 240 Cars & Trucks

    1 Answer

    I had the check engine light come up. It was the Mass airflow sensor. I changed it with a new one from Advanced Auto. They reset the computer and a day later the engine light came back on. Same code Mass...


    it can make a difference with the units.
    i have just changed the same sensor on a skoda diesel.
    there were 2 units listed as being correct for the engine. one works, one doesn't.
    always make sure you have the correct unit for the right engine.

    Feb 22, 2011 | Volkswagen Jetta Cars & Trucks

    1 Answer

    Im lossing horsepower with slow accel. and a rough idle when in heavy traffic. odb2 computer says its a mass airflow sensor prob.... could this cause these problems? its for a 2000 volvo s40 1.9L turbo


    If your airflow sensor (meter) is faulty then nothing in the fuel system will work as it should. This sensor tells the computer how much air is entering the engine so it can determine the fuel needed. It sets the amount of fuel by adjusting the length of time fuel is injected. So obviously your problem.

    Mar 18, 2010 | 2000 Volvo S40

    2 Answers

    Fault code P0172


    There are many potential problems that can cause this error code to be generated. The optimum air-fuel mixture is determined by a pre-conceived 'map' that the engine management computer refers to about 10 times per second. It then compares sensor information to the reference values in the map and adjusts the fuel-air mixture accordingly. Therefore, any single factor that can influence the reference information the computer receives from sensors could potentially be the problem. Now, it's a process of elimination / testing. First, start with the vacuum system. Ensure there are no vacuum leaks. Next, make sure all electrical connections and wiring are in good condition AND, especially for volkswagen, make sure the grounding points for the electrical system are all clear of corrosion and grounding nicely. Finally, if the problem is still there, refer to a service manual for your vehicle and use a multi-meter to check sensors such as the mass airflow sensor or manifold absolute pressure sensor, air temperature sensor, throttle position sensor, engine temperature sensor, crankshaft and camshaft position sensor, oxygen sensors, etcetera, for errors. In most cases, if there is a fault in any one of these sensors, it will register an error code, BUT NOT ALWAYS!! If there are no vacuum leaks, the wiring is good, and all sensors spec as functioning appropriately, then you may have a problem with your ECU (although I doubt it's the latter). Good luck, now get to hunting for your problem!

    Mar 23, 2009 | 2001 Volkswagen Beetle

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