how to reset mass air flow sensor bmw

This guide provides instructions on how to change the Mass Air Flow MAF sensor on a 2004-2013 BMW 3-Series. The most common signs of bad mass air flow sensor MAF in BMW X3 are loss of power or slow acceleration engine hesitation or jerking during acceleration erratic idling misfires poor exhaust emission values and sometimes black smoke comes out of the tailpipe.

Mass Air Flow Sensor Maf Cleaning Diy Family Handyman

Intake manifold flap actuator.

. Clean up or replace the mass air flow sensor. First locate the MAF sensor. Perform this coding also after removing the.

Make sure that the sensor probe connector is facing up. The Mass Airflow Sensor MAF measures the amount of air entering the engine and the Engine Control Module ECM uses the information to determine the proper amount of fuel quantity and ignition timing. Before you connect the sensor with its harness disconnect the battery from the ground cable.

Heres a general guide on how to do it. This sensor will over time get dirty and its two filaments. The job of the mass air flow sensor is to keep track of.

I have changed my mass air flow sensor twice with OEM parts reset the code multiple times put a new KN air filter in and the light still comes with in 3 or so miles. It will be near the intake manifold or throttle body and it will likely have a large electrical connector going to it. These guidelines apply to BMW E90 E91 E92 and E93 vehicles.

Also if the computer isnt the issue then it means one of the other sensors is probably off if the car isnt able to. It isnt able to use the tables programmed in it to guess the amount of fuel needed. The stored compensation factors are reset to 0 in the process.

If you dont have any contact cleaner on hand using WD-40 or another. The symptoms of a bad mass air flow sensor include low engine power poor fuel economy an engine that wont start a check engine light on the dash and a gas smell from the exhaust fumes. Turn ignition switch OFF.

Next spray a small amount of contact cleaner into the electrical connector. The mass air flow sensor is part of the engines intake system and is located. After removing the sensor place the MAF on a clean work surface.

You have two choices to make. Even though we used a 2006 530xi to perform this repair this article can be applied to any BMW vehicle with the N52 engine including most 2004-2013 1 3 5 6 7 X1 X3 X5 and Z4 models minor modifications to the repair steps. Remove the old MAF sensor and replace it with a new one.

The mass air flow sensor MAF monitors the amount of air entering the engine and the flow of air through the engine. As of volume production launch. Fault Code Definition.

Restart engine and let it idle for at least 5 seconds. I did find a skinned wire that looks like a rodent got it but I soldered it back together so it is solid. If the car dies when you disconnect the mass airflow sensor then that means it was working right and that your computer has issues.

Intercooling of charge air. Start engine and warm it up to normal operating temperature. To get this done action delicately but you will just have to disassemble it on both sides of the air duct and disconnect the electrical plug on top of it.

Using a wrench with a correct socket remove the bolts securing the MAF air box. Stop engine and reconnect mass air flow sensor harness connector. BMW Diagnostics with ISTA - How to reset mass air flow MAF adaptation values with ISTA DThe information contained on this video are for educational and info.

The mass airflow sensor is held in place with two screws and is very straightforward to replace. Resetting the Mass Air Flow Sensor by Disconnecting the Battery. Carefully unscrew the clip and detach the vacuum hose connected to the MAF air box.

You can decide to clean up your old mass air flow sensor or get a new one. The service function Air mass flow meter adaptation must be performed after the air mass flow meter is replaced. An intake air temperature sensor also known as an IAT sensor is integrated into the mass airflow sensor in current automobiles.

Leave it like that for around 10 minutes. The most common signs of bad mass air flow sensor MAF in BMW X1 are loss of power or slow acceleration engine hesitation or jerking during acceleration erratic idling misfires poor exhaust emission values and sometimes black smoke comes out of the tailpipe. As of volume production launch - E46 M57TU.

A bad mass air flow sensor is often the likely culprit if your car isnt running as it should. Once disassembled you will be able to move forward to the step cleaning the mass air flow sensor of your Bmw 1 series. Disconnect mass air flow sensor harness connector.

Please start your own thread. Returning learned values of the intake system to the initial state. The sensor itself is located near the air filter housing on the drivers side of the engine.

Answer 1 of 2. The following learned values will return to the initial state. This article gives detailed instructions on replacing the mass air flow sensor MAF in a BMW vehicle with the N52 6 cylinder engine.

The air mass flow meter adaptation is used as follows. If you have good reasons to believe your old air flow sensor is no longer in good condition get a. The whole system will be reset now.

The Mass Airflow Sensor P0102 trouble code is set when the ECM detects a low voltage output from the Mass Air flow Sensor. BMW E60 digital engine management DME systems use a hot-film mass air flow sensor installed between the air filter housing and the intake manifold to monitor air flow into the engine intake. The mass air flow sensor is part of the engines intake system and is located.

I have a 2017 Titan XD with the Cummins. Inside the sensor there is a thin metal film which is maintained at a constant temperature via electrical current from the ECM.

P0100 Mass Air Flow Circuit Malfunction