Question about 2008 Mercedes-Benz ML 500

1 Answer

HI, I HAVE A OBDII P2004 hot film... etc.,

The question it's, if i need to replace the map sensor?, thanks

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 7 Answers

Please elaborate more, assuming you want to know if you need to replace map sensor answer is yes if cash is no problem,but you can first try to clean the sensor

Posted on Nov 07, 2014


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a 2011 silverado i have had the problem with MAP sensor code and mine usually has other codes to go with it but the other codes change but the MAP sensor is always there

You can by a bluetooth OBDII diagnostic tool on e-bay that you can use with your smart phone & Torque Lite app from googleplaystore.
The link below helps you further assess the problem.
How do you detect bad MAP sensor

Nov 16, 2016 | Chevrolet Silverado Cars & Trucks

1 Answer

Hi I have an Opel corsa 1.3 1996 it idles at 2000 rpm changed Idle valve map sensor knock sensor but still idles at 2000rpm and if I connect map sensor it goes up to 4000 rpm

I would first look into a vacuum leak, then I would look at a possibly bad IAC, but you having a 1996 model, you should have the OBDII computer so you should probably pull the codes and see where that leads you.

Oct 26, 2015 | Opel Cars & Trucks

1 Answer

Ok, i have a 2000 sierra 5.3 slt got the p0101 code it wouldnt star up unles i give it some gas and it shots off so, rough idle and wont stay on, i change the MAF sensor (new delphi) but still doing the...

The Mass Air Flow (MAF) sensor is located in the stream of intake air and measures this intake flow rate by measuring a part of the entire intake flow. It is what they call a hot film and is supplied with electric current from the Engine Control Module (ECM).
The temperature of the hot film is controlled by the ECM to a certain extent. The heat generated by the hot film is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the ECM must supply more electric current to maintain the temperature of the hot film as air flow increases. The ECM detects the air flow by means of this current change.
The OBDII people suggest that before you replace the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with compressed air or by using a cleaner on the mass air flow sensor. Truly, all that may be wrong is a build-up of dirt.Unfortunately, in your case, replacing the Mass Air Flow did not work.After replacement, did you reset the code and drive the vehicle?.
I suggest you replace the air filter and check for intake air leaks.YouTube has some good videos on how to do this, one by Eric the car guy and one by Scottie Kilmer

Jan 13, 2015 | 2000 GMC New Sierra 1500

1 Answer

Car wont start

Sorry but this code does not show in my general OBDII code list neither the manufacturers so try another machine or contact the code reader manufacturer for a list of codes from this machine

Jan 31, 2013 | 2008 Dodge Avenger

1 Answer

My engine misses and loses fuel pressure, and engine surges when switching between brights and dims. Can this happen because of a bad battery?

Check altenator to see if charging.
Check fuel pump, replace if needed.Check Throttle positioning sensor, replace if needed.

Jan 21, 2013 | Cars & Trucks

1 Answer


Hi there:This code can also be related to the MAF or mass air flow sensor. Lets test it before we try anything new.
Testing and Inspection:

This hot film type air flow sensor is composed of a hot film sensor, housing, and a metering duct (hybrid, sensor element). The mass airflow rate is measured by detection of heat transfer from a hot film probe. A change in the mass air flow rate will cause a change in the amount of heat being transferred from the hot film probe surface to the air flow. This results in a change in temperature of the hot film probe and a change of resistance.

Circuit Diagram:


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Aug 16, 2012 | 2001 Hyundai Elantra

1 Answer

How many o2 sensors does a 1997 gmc yukon have?

Your Yukon has only one O2 sensor. If black smoke is present at exhaust pipe while at hi-way speed, it is probably staying in open loop (fuel mapping). most likely a coolant temp sensor. Before changing any parts, perform an OBDII diagnostic test to see the stored fault history. Replace cheapest components first (ie air filter, every 40,000 miles)

May 09, 2017 | 1997 GMC Yukon

1 Answer

Toy not idling


Do the following:

Do an OBDII code scan (free at Autozone) report codes here.
Ensure that there is spark on all plugs.
Check MAP and MAF sensor, replace air filter and check air intake.
Check vacuum system for leaks.
Check fuel pressure.

Get back to us for more support.



Feb 18, 2011 | 2005 Toyota Corolla

1 Answer

Cranks but will not stay running

Does the Check Engine light come ON when this happens? Whenever the "Check Engine" light comes on, there is always a DTC (Diagnostic Trouble Code) stored in the ECM (Engine Control Module). You'll need an OBDII (On-Board-Diagnostics) scanner to retrieve any codes recorded/set in ECM. Once you do this and let us know what, if any codes are set, then we can go from there.
There are just too many possible causes for the problem you describe. Example: Sensors like the Mass Air Flow (MAF), Throttle Position Sensor (TPS), Manifold Absolute Pressure (MAP) sensor, Crank Position Sensor (CKP), Engine Coolant Temperature (ECT) Sensor, Intake Air Temperature (IAT) sensor, vacuum leaks, intake air hose leak, Wiring & connectors, clogged intake air filter, bad/contaminated fuel, malfunctioning injectors, poor ignition/spark or spark plugs or wires, Major Engine Mechanical problems, Out of Time, etc. etc. etc.

Apr 29, 2009 | 2001 Kia Optima

Not finding what you are looking for?
2008 Mercedes-Benz ML 500 Logo

Related Topics:

80 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers


Level 3 Expert

80608 Answers

Joseph Prosser

Level 3 Expert

772 Answers

Are you a Mercedes-Benz Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides