New dmrv bosh. Which mass air flow sensor to replace the failed one? Types of dmrv, their design features and principle of operation

Bosch mass air flow sensor with part number 0 280 218 037 is used in air intake systems in cylinders in the following vehicles:

LADA Kalina sedan (1118) 1.6 82 h.p. Petrol 2004 - present. time

LADA Kalina station wagon (1117) 1.6 82 h.p. Petrol 2004 - present. time

LADA Kalina hatchback (1119) 1.6 82 HP Petrol 2004 - present. time

In the factory original catalogs of spare parts, LADA passes under its number: 21083-1130010-10 and is its complete analogue.

Usually, the primary signs of a malfunction of the air flow sensor appear on a cold engine, the speed often floats, it makes it difficult to start a cold start, sometimes an inadequate response and twitching when you press the gas pedal. But we recommend contacting specialists to identify a malfunction, often these symptoms are typical not only for a non-working air flow sensor. However, any more or less experienced master will be able to diagnose without any problems.

Also, our customers often ask the question whether it is possible to clean the Bosch air flow sensor 0280218037, in principle, cleaning is useful, do not forget that cleaning it is not difficult and it will not save you from problems if the sensor is completely dead. In our experience, we can advise you to measure the wear level of the MAF. It is necessary to check the ADC with the ignition on, the voltage value of the new DMRV is in the region of 1.0 volts. If the flow meter gives 1.04-1.05, you can safely throw it in the trash, it has already worked out its own. If 1.03 is quite enough for some short time.

You can find out the necessary information about the applicability of the BOSCH DMRV 0 280 218 037 specifically to your car from our operator by contacting him by phone. For all our products, including the DMRV, we give a guarantee for 6 months, without any conditions. If the part does not solve the problem, you can return it to us within two weeks from the date of purchase, keeping the original packaging and receipt. We always have in stock at the lowest possible market price. We deliver in Moscow and throughout Russia, to such cities as: St. Petersburg, Novosibirsk, Ufa, Samara, Perm, Nizhny Novgorod, Yekaterinburg, and many others. By default, we use the service - cash on delivery air mail, which allows us to ensure the delivery of goods as soon as possible.

Mass air flow sensor (DMRV) HFM5

Validation concept
To improve the diagnosis and conduct a competent examination of a faulty HFM5 MAF, the concept of verification was expanded and a more informative catalog of damaged products was developed. Before removing / replacing the DMRV, the sensor is checked according to the sequence below.

1. Diagnostics on the vehicle using KTS 5xx/6xx.
Extended vehicle diagnostics involves comparing standard and actual air mass values. In this diagnostic section, HFM5 is diagnosed directly on the vehicle. If the actual values are out of tolerance, the MAF must be replaced.
More detailed information for the diagnosed vehicle can be borrowed from the ESI software.

2. Carrying out an extended check of the HFM5 already removed from the vehicle using a multimeter.

Necessary devices:
- rechargeable battery or power supply (12V / 3A)
- digital multimeter
- test cable (with voltage regulator chip)
- microscope with tenfold magnification (type MBS-10)
- star screwdriver

Description of the test

Using a test cable with an integrated voltage stabilizer chip, * a voltage of 5V is generated at pin 4 of the DMRV plug.

* A test cable with an integrated stabilizer microcircuit can be made on its own or purchased from a distribution network (international index 7805, domestic analogue - KREN5).

The location of the conclusions of the DMRV HFM5:
1. Inlet air temperature sensor
2. Supply voltage 12V (red wire)
3. Ground (black wire)
4. Reference voltage 5V (yellow wire)
5. Measured signal (+) (blue wire)

Examination
1. Static
Connect the test cable 0 986 610 129, observing the polarity, to the HFM5 socket as follows:
red wire to power supply (+)
black wire to power supply (-)
blue wire to multimeter (+)
black wire to multimeter (-)

To eliminate air movement in the measuring channel of the sensor, close the inlet and outlet sections of the DMRV housing with plastic covers (included in the delivery).
Apply voltage (12V) to HFM5 using the power supply. A reference voltage (5V) is generated in the test cable through a voltage stabilizer microcircuit, which is supplied to pin 4.

Standard voltage value 0.98 - 1.02V
If the actual value of the measured voltage is out of tolerance, it is highly likely that the DMRV is contaminated. Contamination leads to a violation of the characteristics of the HFM5 and its subsequent failure.

More information can be found in the catalog of damaged products.

2. With air supply
The wiring diagram is the same. It is necessary to create an air flow and direct it to the HFM5 according to the direction indicated on the DMRV body. When the intensity of the air flow changes, the measured voltage should increase. If the voltage does not change, the sensor membrane is damaged.
This means: the MAF is faulty.
Conversely, the DMRV is considered serviceable if the voltage changes.
The maximum value can reach 4.5V (depending on the diameter of the sensor and the mass of the passing air).

3. Checking the intake air temperature sensor (if equipped)
Connect the blue banana plug of test cable 0 986 610 129 to pin 1 of the HFM5 plug. This plug measures the resistance of the air temperature sensor between pin 1 and pin 3 (ground).
At the end of the telegram is a list of DMRV HFM5 with air temperature sensors.

The measured actual value must lie within the limits given.
Note: This test of an HFM5 without an air temperature sensor will result in an infinitely (∞) high resistance value.

4. Visual check. Using the catalog of damaged products.
In addition to the diagnostics described above, a visual check can be performed. The following photos show typical cases of contaminated MAFs or tampered sensors.

pollution :

traces of moisture

Oil ingress

alien particles

If the HFM5 sensor is heavily soiled, warranty claims will not be covered. In some cases, the air filter, filter box and pipe between the filter and the mass air flow sensor must be checked for contamination on the car.

Note:
Before installing a new DMRV, it is imperative to remove dust and dirt from the air filter box, install a new air filter and clean the pipe between the filter and the sensor. Blowing with air under pressure of the filter box and nozzle is prohibited, for this it is necessary to use a soft dry cloth.

Third Party Intervention. H

The sensitive element is not attached or has been replaced:
The special star screws are loose Non-original screws are screwed in.

Attempt to remove screws. The screw slots are stripped.

Third-party intervention in the DMRV device, namely unscrewing and damaging the star screws, as well as replacing the sensing element is prohibited.

4. Disassembly of the mass air flow sensor.
Using an asterisk screwdriver, unscrew the screws securing the sensing element in the DMRV housing.

Remove the element from the housing. Remove the sealing ring from the hybrid board cover.

Open the cover of the underwater channel in the area where the resistive sensor is located.

Place the probe under the microscope. Use a microscope with 10x magnification.

should be distinguished:

Dear customers, in order to avoid errors when sending the mass air flow sensor (MAF), in the "Comment" line, indicate your car model, year of manufacture and the number of valves.

Mass Air Flow Sensor (DMRV)116 BOSCH - hot-wire type.

Structurally, this type of sensorshas a sensitive element, a thin mesh (membrane) based on silicon, which is installed in the intake air stream. On the grid there is a heating resistor and two temperature sensors, which are installed before and after the heating resistor.

The output signal of the DMRV is a DC voltage in the range of 1 ... 5 V. The value of which depends on the amount of air passing through the sensor. While the engine is running, the intake air cools the part of the grid located in front of the heating resistor. The temperature sensor located in front of the resistor is cooled, and the sensor located behind the heating resistor maintains its temperature by heating the air. The differential signal of both sensors makes it possible to obtain a characteristic curve depending on the amount of air flow.

The ECU analyzes the MAF signal and, using its data tables, determines the duration of the injector opening pulse, which corresponds to the mass air flow signal.

DMRV 116 BOSCH has a built-in air temperature sensor (ATS), the readings of which are used in the multiport fuel injection system of the car 21214 and multiport fuel injection systems for EURO-3 toxicity standards. The sensitive element of DTV is a thermistor (a resistor that changes resistance depending on temperature) - installed in the flow of passing air. The controller supplies 5V through a fixed resistor inside the controller. The controller calculates the temperature from the voltage drop across the sensor. As the temperature rises, the voltage decreases. The controller calculates the duration of the injector opening pulses based on the sensor readings.

The DMRV is installed between the air filter and the throttle pipe.

Other articles of the product and its analogues in the catalogs: 21083-1130010-20.

Product Features:
Mass air flow sensor(catalogue designation BOSCH 0 280 218 116) ,designed to convert the air flow entering the engine into DC voltage. The sensor information allows you to determine the engine operating mode and calculate the cyclic filling of cylinders with air at steady-state engine operating modes, the duration of which exceeds 0.1 seconds.

VAZ 2105-07 (Classic 1.6L injection), VAZ 2108-21099, VAZ 2110-2112; VAZ 2113-2115, VAZ 1118-1119, VAZ 2170-2172, VAZ 21214, 2123 Euro-2, Euro-3 (since VAZ 2006)

Specifications:
- Optimum fuel consumption is ensured in all engine operating modes due to high accuracy and stability of output characteristics.

Using the thermal principle of air flow measurement.

Mass air flow measurement range - from 8 to 550 kg/h.

The mass flow measurement error of the new sensor is +/- 2.5%.

The value of the output signal when measuring the flow range from 0 to 100% - from 0.05 to 5 V.

The sensor is powered from the vehicle's on-board network with a nominal voltage of 12 V.

The supply voltage range is from 7.5 to 16 V.

Current consumption (at supply voltage from 7.5 to 16 V) - 0.5 A.

Operating temperature range - from -45° to +120° С.

Time to failure, not less than 3000 hours

How to troubleshoot d

Just COMPARE and BE SURE!!!

Dear customers, in order to avoid errors when sending the mass air flow sensor (MAF), in the "Comment" line, indicate your car model, year of manufacture and the number of valves.

Mass Air Flow Sensor (DMRV) 037 " BOSCH" – hot-wire type.

The ECU analyzes the MAF signal and, using its data tables, determines the duration of the injector opening pulse, which corresponds to the mass air flow signal.

DMRV 037 " BOSCH" has a built-in air temperature sensor (DTV), the readings of which are used in the multiport fuel injection system of the car 2112 and multiport fuel injection systems for EURO-2 toxicity standards. The sensitive element of DTV is a thermistor (a resistor that changes resistance depending on temperature) - installed in the flow of passing air. The controller supplies 5V through a fixed resistor inside the controller. The controller calculates the temperature from the voltage drop across the sensor. As the temperature rises, the voltage decreases. The controller calculates the duration of the injector opening pulses based on the sensor readings.

The DMRV is installed between the air filter and the throttle pipe.

Other articles of the product and its analogues in the catalogs: 21083-1130010-10.

Product Features:
Mass air flow sensor(catalogue designation BOSCH 0 280 218 037) ,designed to convert the air flow entering the engine into DC voltage. The sensor information allows you to determine the engine operating mode and calculate the cyclic filling of cylinders with air at steady-state engine operating modes, the duration of which exceeds 0.1 seconds.

VAZ 2108, VAZ 2109-21099; VAZ 2110-11, VAZ 2112, VAZ 2123, VAZ 21214.

Specifications:
- Optimum fuel consumption is ensured in all engine operating modes due to high accuracy and stability of output characteristics.