What are the features and testing procedures for the Mass Air Flow Sensor on Volvo 740?

The sensor inside the air mass meter has a wire that is kept at 250degF (120degC) above the ambient air temperature of incoming air. As the air mass increases, more current is required to maintain the correct wire temperature and this current is used to calculate the air mass intake. When the engine is shut off, any dirt on the wire gets burned off electrically by heating the element to 1832degF (1000degC) for 1 second; any tiny bit of dirt left could cause wrong signals to be sent to the control unit, resulting in a wrong air/fuel mixture. To test the MAF sensor, it is necessary to disconnect the connector, then by wiring diagrams find the signal ground wire and measure the resistance with a DVOM, it should be 0 ohms. Next, locate the signal circuit and measure the voltage between it and ground with ignition in ON position, it should be equal to battery voltage. After plugging the MAF sensor connector back in, backprobe the signal return and signal ground with the key in the ON position, expecting a voltage of 0.1 - 0.2v. If the voltage is okay, make sure all the connections are tight or change the MAF sensor. To remove it, disconnect the negative battery cable, unplug the sensor connector and remove the two retaining screws to remove the sensor. To install, fit the sensor into the air inlet hose, tighten the retaining screws on the sensor, plug in the connector and reconnect the negative battery cable.

Genuine Volvo Mass Air Flow Sensor

MAF Sensor Meter

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21 Mass Air Flow Sensors found

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Volvo Mass Air Flow Sensor Part Number: 30713512
$339.80 MSRP: $442.45
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Product Specifications
- Other Name: Mass Air Flow; Air Mass Sensor; Air Mass Sensor, Mass Air Flow Sensor
Fits the following Volvo Models:
- S60 | 2001-2006 | 2.4, 2.4T, AWD, Base, T5 | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
- V70 | 2001-2007 | 2.4, 2.4T, 2.5T, 2.5T AWD, Base, T5, X/C | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
- XC70 | 2003-2007 | Base, Ocean Race, X/C | 5 Cyl 2.5 L GAS
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Volvo Mass Air Flow Sensor Part Number: 30751293
$353.40 MSRP: $460.15
You Save: $106.75 (24%)
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Product Specifications
- Other Name: Mass Air Flow; Air Mass Sensor
Fits the following Volvo Models:
- S60 | 2011-2016 | T6, T6 Polestar, T6 R-Design, T6 R-Design Platinum | 6 Cyl 3.0 L GAS
- S80 | 2008-2015 | T6 | 6 Cyl 3.0 L GAS
- V60 | 2015-2016 | T6 Polestar, T6 R-Design, T6 R-Design Platinum | 6 Cyl 3.0 L GAS
- XC60 | 2010-2016 | T6, T6 Ocean Race, T6 Platinum, T6 Premier, T6 R-Design, T6 R-Design Platinum | 6 Cyl 3.0 L GAS
- XC70 | 2009-2015 | T6 | 6 Cyl 3.0 L GAS
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Volvo Mass Air Flow Sensor Part Number: 31342521
$353.40 MSRP: $460.15
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Product Specifications
- Other Name: Mass Air Flow
Fits the following Volvo Models:
- S60 | 2015-2018 | Polestar, T5, T5 Dynamic, T5 Inscription, T5 Inscription Platinum, T5 Inscription Premier, T5 Platinum, T5 Premier, T5 Premier Plus, T5 R-Design Special Edition, T6, T6 Platinum, T6 Premier Plus, T6 R-Design Platinum | 4 Cyl 2.0 L GAS
- S60 Cross Country | 2017-2018 | T5 | 4 Cyl 2.0 L GAS
- S80 | 2015-2016 | T5, T5 Platinum | 4 Cyl 2.0 L GAS
- V60 | 2015-2018 | Polestar, T5, T5 Dynamic, T5 Platinum, T5 Premier, T5 Premier Plus, T6 R-Design, T6 R-Design Platinum | 4 Cyl 2.0 L GAS
- V60 Cross Country | 2017-2018 | T5, T5 Platinum | 4 Cyl 2.0 L GAS
- XC60 | 2015-2017 | T5, T5 Dynamic, T5 Inscription, T5 Platinum, T5 Premier, T6, T6 Dynamic, T6 Inscription, T6 Ocean Race, T6 Platinum, T6 Premier, T6 R-Design | 4 Cyl 2.0 L GAS
- XC70 | 2015-2016 | T5, T5 Platinum, T5 Premier | 4 Cyl 2.0 L GAS
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Volvo Mass Air Flow Sensor Part Number: 31380619
$353.40 MSRP: $460.15
You Save: $106.75 (24%)
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Product Specifications
- Other Name: Mass Air Flow; Air Mass Sensor, Mass Air Flow Sensor
Fits the following Volvo Models:
- S60 | 2012-2016 | T5, T5 Inscription Platinum, T5 Inscription Premier, T5 Platinum, T5 Premier, T5 Premier Plus | 5 Cyl 2.5 L GAS
- S60 Cross Country | 2016 | T5 Platinum | 5 Cyl 2.5 L GAS
- V60 | 2015-2016 | T5, T5 Platinum, T5 Premier, T5 Premier Plus | 5 Cyl 2.5 L GAS
- XC60 | 2015-2016 | T5, T5 Platinum, T5 Premier | 5 Cyl 2.5 L GAS
- XC70 | 2016 | T5, T5 Platinum, T5 Premier | 5 Cyl 2.5 L GAS
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Volvo Mass Air Flow Sensor Part Number: 31430000
$353.40 MSRP: $460.15
You Save: $106.75 (24%)
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Product Specifications
- Other Name: Mass Air Flow; Air Mass Sensor, Mass Air Flow Sensor
Fits the following Volvo Models:
- S60 | 2019-2023 | Recharge R-Design, T5 Inscription, T5 Momentum, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design, T8 Inscription, T8 Polestar, T8 R-Design, T8 Recharge Core, T8 Recharge Inscription, T8 Recharge Plus, T8 Recharge Polestar, T8 Recharge R-Design, T8 Recharge R-Design Expression, T8 Recharge Ultimate | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- S90 | 2017-2023 | B6 Inscription, B6 Momentum, B6 Plus, B6 R-Design, B6 Ultimate, T5 Inscription, T5 Momentum, T6 Inscription, T6 Momentum, T6 R-Design, T8 Inscription, T8 Momentum, T8 R-Design, T8 Recharge Inscription, T8 Recharge R-Design, T8 Recharge Ultimate | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- V60 | 2019-2023 | T5 Inscription, T5 Momentum, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design, T8 Polestar, T8 Recharge Polestar | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- V60 Cross Country | 2020-2023 | B5 Plus, B5 Ultimate, T5 | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- V90 | 2018-2021 | T5 Inscription, T5 R-Design, T6 Inscription, T6 R-Design | 4 Cyl 2.0 L GAS
- V90 Cross Country | 2017-2021 | T5, T6, T6 Ocean Race | 4 Cyl 2.0 L GAS
- XC40 | 2019-2022 | T4 Inscription, T4 Momentum, T4 R-Design, T5 Inscription, T5 Momentum, T5 R-Design | 4 Cyl 2.0 L GAS
- XC60 | 2018-2023 | B5 Core, B5 Inscription, B5 Momentum, B5 Plus, B5 R-Design, B5 Ultimate, B6 Inscription, B6 R-Design, B6 Ultimate, T5 Inscription, T5 Momentum, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design, T8 Inscription, T8 Momentum, T8 Polestar, T8 R-Design, T8 Recharge Core, T8 Recharge Inscription, T8 Recharge Inscription Expression, T8 Recharge Plus, T8 Recharge Polestar, T8 Recharge R-Design, T8 Recharge Ultimate | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- XC90 | 2016-2023 | T5 Inscription, T5 Momentum, T5 R-Design, T6 First Edition, T6 Inscription, T6 Momentum, T6 R-Design, T8 Excellence, T8 Inscription, T8 Momentum, T8 R-Design, T8 Recharge Core, T8 Recharge Inscription, T8 Recharge Inscription Expression, T8 Recharge Plus, T8 Recharge R-Design, T8 Recharge Ultimate | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Volvo Mass Air Flow Sensor Part Number: 31459871
$353.40 MSRP: $460.15
You Save: $106.75 (24%)
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Product Specifications
- Other Name: Mass Air Flow; Air Mass Sensor, Mass Air Flow Sensor
Fits the following Volvo Models:
- S60 | 2022-2023 | B5 Core, B5 Inscription, B5 Momentum, B5 Plus, B5 R-Design, B5 Ultimate | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- S90 | 2022-2023 | B6 Inscription, B6 Momentum, B6 Plus, B6 R-Design, B6 Ultimate | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- V60 Cross Country | 2020-2021 | T5 | 4 Cyl 2.0 L GAS
- V90 Cross Country | 2022-2023 | B6, B6 Plus, B6 Ultimate | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- XC40 | 2023 | B4 Plus, B4 Ultimate, B5 Core, B5 Plus, B5 Ultimate | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- XC90 | 2023 | B5 Core, B5 Plus, B6 Core, B6 Plus, B6 Ultimate, T8 Recharge Core, T8 Recharge Plus, T8 Recharge Ultimate | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Volvo Mass Air Flow Sensor Part Number: 8658471
$353.40 MSRP: $460.15
You Save: $106.75 (24%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Mass Air Flow; Air Mass Sensor
Fits the following Volvo Models:
- S40 | 2004-2010 | 2.4i, i | 5 Cyl 2.4 L GAS
- S80 | 2007-2015 | 3.2, T6, V8 | 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS, 8 Cyl 4.4 L GAS
- V50 | 2005-2010 | 2.4i, i | 5 Cyl 2.4 L GAS
- V70 | 2008-2010 | 3.2 | 6 Cyl 3.2 L GAS
- XC60 | 2010-2015 | 3.2, 3.2 R-Design | 6 Cyl 3.2 L GAS
- XC70 | 2008-2015 | 3.2 | 6 Cyl 3.2 L GAS
- XC90 | 2005-2014 | 3.2, 3.2 R-Design, V8, V8 Ocean Race, V8 Sport | 6 Cyl 3.2 L GAS, 8 Cyl 4.4 L GAS
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Volvo Mass Air Flow Sensor Part Number: 31342362
$419.66 MSRP: $546.44
You Save: $126.78 (24%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Mass Air Flow Sensor Assembly; Air Mass Sensor, Mass Air Flow Sensor
Fits the following Volvo Models:
- C70 | 1999-2004 | Base | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
- S60 | 2001-2009 | 2.4T, 2.5T, 2.5T AWD, AWD, Base, T5 | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
- S70 | 1999-2000 | AWD, Base, GLT, GLT SE, T5 | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
- S80 | 1999-2006 | 2.5T, 2.5T AWD, 2.9 | 5 Cyl 2.5 L GAS, 6 Cyl 2.9 L GAS
- V70 | 1999-2007 | 2.4, 2.4T, 2.5T, 2.5T AWD, AWD, Base, GLT, GLT SE, R, R AWD, T5, X/C, X/C AWD, X/C AWD SE | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
- XC70 | 2003-2007 | Base, Ocean Race, X/C | 5 Cyl 2.5 L GAS
- XC90 | 2003-2006 | 2.5T, Base | 5 Cyl 2.5 L GAS
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Volvo Mass Air Flow Sensor Part Number: 31342363
$419.66 MSRP: $546.44
You Save: $126.78 (24%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Air Mass Sensor, Mass Air Flow Sensor
Fits the following Volvo Models:
- S60 | 2003-2007 | 2.5T, 2.5T AWD, AWD, R, T5 | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
- S80 | 2002-2005 | T6, T6 Premier | 6 Cyl 2.9 L GAS
- V70 | 2004-2007 | R | 5 Cyl 2.5 L GAS
- XC90 | 2003-2005 | T6 | 6 Cyl 2.9 L GAS
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Volvo Mass Air Flow Sensor Part Number: 31342364
$419.66 MSRP: $546.44
You Save: $126.78 (24%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Mass Air Flow; Air Mass Sensor
Fits the following Volvo Models:
- C30 | 2008-2013 | T5, T5 R-Design | 5 Cyl 2.5 L GAS
- C70 | 2006-2013 | T5 | 5 Cyl 2.5 L GAS
- S40 | 2004-2011 | T5, T5 R-Design | 5 Cyl 2.5 L GAS
- V50 | 2005-2011 | T5, T5 R-Design | 5 Cyl 2.5 L GAS
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Volvo Mass Air Flow Sensor Part Number: 31459404
$419.66 MSRP: $546.44
You Save: $126.78 (24%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Mass Air Flow; Air Mass Sensor, Mass Air Flow Sensor
- Replaces: 31216661
Fits the following Volvo Models:
- S60 | 2012 | T5 | 5 Cyl 2.5 L GAS
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Volvo Mass Air Flow Sensor Part Number: 8251497
$259.19 MSRP: $307.82
You Save: $48.63 (16%)
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Product Specifications
- Other Name: Manifold Sensor Air Flow Meter Fuel Injection; Air Mass Sensor, Mass Air Flow Sensor, Meter
Fits the following Volvo Models:
- 740 | 1990-1992 | Base, GL, GLE, T | 4 Cyl 2.3 L GAS
- 760 | 1990 | Base | 4 Cyl 2.3 L GAS
- 780 | 1990-1991 | Base | 4 Cyl 2.3 L GAS
- 940 | 1991-1995 | Base, GL, GLE, SE, T | 4 Cyl 2.3 L GAS
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Volvo Mass Air Flow Sensor Part Number: 1275749
$310.51 MSRP: $369.66
You Save: $59.15 (16%)
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Product Specifications
- Other Name: Mass Air Flow Sensor Assembly; Air Mass Sensor; Air Mass Sensor, Mass Air Flow Sensor
Fits the following Volvo Models:
- 850 | 1993-1997 | Base, GLT, R, T-5, T-5R, Turbo | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
- C70 | 1998 | Base | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
- S70 | 1998 | Base, GLT, T5 | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
- V70 | 1998 | AWD, Base, GLT, R, T5, X/C AWD | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
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Volvo Mass Air Flow Sensor Part Number: 1275636
$361.02 MSRP: $462.84
You Save: $101.82 (22%)
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Product Specifications
- Other Name: Mass Air Flow; Mass Air Flow Sensor Assembly; Air Mass Sensor, Mass Air Flow Sensor
Fits the following Volvo Models:
- S70 | 1999-2000 | AWD, Base, GLT, GLT SE, T5 | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
- V70 | 1999-2000 | AWD, Base, GLT, GLT SE, R AWD, T5, X/C AWD, X/C AWD SE | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
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Volvo Mass Air Flow Sensor Part Number: 30611231
$255.20 MSRP: $303.82
You Save: $48.62 (16%)
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Product Specifications
- Other Name: Mass Air Flow Sensor Assembly; Air Mass Sensor; Air Mass Sensor, Mass Air Flow Sensor
Fits the following Volvo Models:
- S40 | 2000 | Base | 4 Cyl 1.9 L GAS
- V40 | 2000 | Base | 4 Cyl 1.9 L GAS
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Volvo Air Mass Sensor Part Number: 1366220
$329.84 MSRP: $392.67
You Save: $62.83 (16%)
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Product Specifications
- Other Name: Mass Air Flow 2507; Mass Air Flow Sensor; Air Mass Sensor
Fits the following Volvo Models:
- 850 | 1993-1995 | Base, GLT, T-5R, Turbo | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
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Volvo Mass Air Flow Sensor Part Number: 8670113
$424.38 MSRP: $505.21
You Save: $80.83 (16%)
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Product Specifications
- Other Name: Mass Air Flow; Mass Air Flow Sensor Assembly; Air Mass Sensor, Mass Air Flow Sensor
Fits the following Volvo Models:
- S80 | 1999-2001 | T6 | 6 Cyl 2.8 L GAS
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Volvo Air Mass Sensor Part Number: 8251500
$299.64 MSRP: $356.22
You Save: $56.58 (16%)
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Product Specifications
- Other Name: MAF-Sensor, Exchange; Mass Air Flow Sensor; Air Mass Sensor
Fits the following Volvo Models:
- 760 | 1985-1990 | GLE | 6 Cyl 2.8 L GAS
- 780 | 1987-1990 | Base | 6 Cyl 2.8 L GAS
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Volvo Mass Air Flow Sensor Part Number: 5517020
$542.69 MSRP: $701.14
You Save: $158.45 (23%)
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Product Specifications
- Other Name: Mass Air Flow Sensor Assembly; Mass Air Flow Sensor
Fits the following Volvo Models:
- 240 | 1991 | Base, SE | 4 Cyl 2.3 L GAS
- 740 | 1991-1992 | Base, T | 4 Cyl 2.3 L GAS
- 780 | 1991 | Base | 4 Cyl 2.3 L GAS
- 940 | 1991-1994 | Base, GL, GLE, T | 4 Cyl 2.3 L GAS
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Volvo Mass Air Flow Sensor Part Number: 30611532
Product Specifications
- Other Name: Mass Air Flow Sensor Assembly; Air Mass Sensor, Mass Air Flow Sensor
Fits the following Volvo Models:
- S40 | 2001-2004 | Base, LSE | 4 Cyl 1.9 L GAS
- V40 | 2001-2004 | Base, LSE | 4 Cyl 1.9 L GAS

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Volvo Mass Air Flow Sensor

The Volvo Mass Air Flow Sensor is constantly measuring incoming air to provide the engine with the precise information it needs to provide smooth power and efficient fuel consumption. Volvo began building vehicles in Gothenburg in 1927 and since then Volvo has become synonymous with safety and introduced the three-point seat belt, sturdy braking systems, and intuitive instrumentation that help drivers feel confident every day. Clean Scandinavian design, supportive seating, and simple dashboard controls make a Volvo cabin welcoming, and with continued research into electric powertrains and plug-in hybrids, there is little doubt about the brand's commitment to a greener future. Drivers value consistent performance in cars, trucks, and buses, testaments to the brand's careful engineering and long-term durability. Acting as a digital airflow gauge, the Mass Air Flow Sensor operates inside the intake stream, keeping track of each gulp of oxygen to help the control unit match fuel with pinpoint accuracy to prevent stalls or hesitations. Modern hot wire technology in the Mass Air Flow Sensor produces rapid response with little restriction to maintain a balanced mixture whether cruising or hard accelerating. A clean Mass Air Flow Sensor allows the entire lineup to breathe freely, resulting in lower emissions, higher mileage, and no check engine light. Regular inspection helps provide consistent throttle feel and protects catalytic components, making this a small part with a big impact on every Volvo powertrain.

Trust OEM Mass Air Flow Sensor for quality that holds up. These parts use top-tier materials to keep your ride running smooth. Because they match exact Volvo specs, you get a flawless fit and a hassle-free install every single time. No more fighting with parts that just won't line up. It is easy to search our massive stock of genuine Volvo options at prices you will really like. Every part comes with a real manufacturer's warranty and a simple return policy. Plus, we ship fast to get your order to you. Shop with confidence and give your Volvo the reliability it deserves.

Volvo Mass Air Flow Sensor Parts and Q&A

Mass Air Flow Sensor
8251497
Q: What are the features and testing procedures for the Mass Air Flow Sensor on Volvo 740?
A:
The sensor inside the air mass meter has a wire that is kept at 250degF (120degC) above the ambient air temperature of incoming air. As the air mass increases, more current is required to maintain the correct wire temperature and this current is used to calculate the air mass intake. When the engine is shut off, any dirt on the wire gets burned off electrically by heating the element to 1832degF (1000degC) for 1 second; any tiny bit of dirt left could cause wrong signals to be sent to the control unit, resulting in a wrong air/fuel mixture. To test the MAF sensor, it is necessary to disconnect the connector, then by wiring diagrams find the signal ground wire and measure the resistance with a DVOM, it should be 0 ohms. Next, locate the signal circuit and measure the voltage between it and ground with ignition in ON position, it should be equal to battery voltage. After plugging the MAF sensor connector back in, backprobe the signal return and signal ground with the key in the ON position, expecting a voltage of 0.1 - 0.2v. If the voltage is okay, make sure all the connections are tight or change the MAF sensor. To remove it, disconnect the negative battery cable, unplug the sensor connector and remove the two retaining screws to remove the sensor. To install, fit the sensor into the air inlet hose, tighten the retaining screws on the sensor, plug in the connector and reconnect the negative battery cable.