Nissens 999229 A/C Expansion Valve
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Nissens

Nissens 999229 A/C Expansion Valve

Brand Nissens 999229
Material Aluminum
Refrigerant Type R134a
Type Block
Mounting Hardware Included No
Liquid Inlet Fitting Thread Diameter 0.5500
Liquid Outlet Fitting Thread Diameter 0.5500
O-ring Quantity 4
O-rings Included Yes
Suction Inlet Fitting Thread Diameter 0.6300
Suction Outlet Fitting Thread Diameter 0.7100
Fits BMW · 166 vehicles

Aluminum block design. Built for efficient refrigerant flow control in the A/C system.

R134A compatible. Matches the specified refrigerant type for proper system service.

O-rings included. Comes with sealing rings for a cleaner installation.

Cross-references Dynomax 39493, UAC EX10448C and Valeo 715300 for the same application. See all 6.

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Nissens 999229 A/C Expansion Valve

The Nissens 999229 A/C expansion valve is a block-style HVAC flow restrictor built with an aluminum body and R134A refrigerant compatibility. It is used in BMW air conditioning systems that require precise refrigerant metering for stable evaporator performance.

Compatible with select BMW 2 Series, 3 Series, 4 Series, M2, M3, and M4 applications, including BMW 230i, 330i, 430i, M240i, and related xDrive models. This part number, 999229, is a direct-fit service component for vehicles listed below.

  • Aluminum construction for HVAC service applications
  • Block-type A/C expansion valve design
  • Configured for R134A refrigerant systems
  • O-rings included; mounting hardware not included
  • Liquid inlet and outlet fitting thread diameter: 0.5500
  • Suction inlet fitting thread diameter: 0.6300
  • Suction outlet fitting thread diameter: 0.7100

Detailed Product Information

Nissens develops thermal management components for aftermarket use with attention to fit and material quality. The 999229 expansion valve regulates refrigerant flow into the evaporator, helping the A/C system maintain proper pressure balance and cooling performance. If your BMW shows uneven vent temperatures, poor cooling output, or refrigerant flow issues tied to the expansion valve, this component addresses that service point directly. Cross-reference part numbers include UAC EX10448C and Valeo 715300 for the same application.

Vehicle Fitment

  • Fits 2017-2021 BMW 230i, N/A
  • Fits 2017-2021 BMW 230i xDrive, N/A
  • Fits 2016-2021 BMW M2, N/A
  • Fits 2017-2021 BMW M240i, N/A
  • Fits 2021 BMW M240i xDrive, N/A; inlet 1: 44mm, inlet 2: 25.2 mm, outlet 1: 11.8 mm, outlet 2: 18 mm
  • Fits 2017-2020 BMW 430i, N/A
  • Fits 2017-2020 BMW 430i Gran Coupe, N/A
  • Fits 2017-2020 BMW 430i xDrive, N/A
  • Fits 2017-2020 BMW 430i xDrive Gran Coupe, N/A
  • Fits 2017-2020 BMW 440i, N/A
  • Fits 2017-2020 BMW 440i Gran Coupe, N/A
  • Fits 2017-2020 BMW 440i xDrive, N/A
  • Fits 2017-2020 BMW 440i xDrive Gran Coupe, N/A
  • Fits 2017-2020 BMW M240i xDrive, N/A
  • Fits 2015-2020 BMW M4, N/A
  • Fits 2017-2019 BMW 330i GT xDrive, N/A
  • Fits 2019 BMW 330i xDrive, N/A; Wagon
  • Fits 2017-2019 BMW 340i GT xDrive, N/A
  • Fits 2013-2018 BMW 320i, N/A
  • Fits 2013-2018 BMW 320i xDrive, N/A
  • Fits 2014-2018 BMW 328d, N/A
  • Fits 2014-2018 BMW 328d xDrive, N/A
  • Fits 2017-2018 BMW 330i, N/A
  • Fits 2017-2018 BMW 330i xDrive, N/A
  • Fits 2016-2018 BMW 340i, N/A
  • Fits 2016-2018 BMW 340i xDrive, N/A
  • Fits 2015-2018 BMW M3, N/A
  • Fits 2014-2016 BMW 228i, N/A
  • Fits 2015-2016 BMW 228i xDrive, N/A
  • Fits 2012-2016 BMW 328i, N/A
  • Fits 2014-2016 BMW 328i GT xDrive, N/A
  • Fits 2013-2016 BMW 328i xDrive, N/A
  • Fits 2014-2016 BMW 335i GT xDrive, N/A
  • Fits 2014-2016 BMW 428i, N/A
  • Fits 2015-2016 BMW 428i Gran Coupe, N/A
  • Fits 2014-2016 BMW 428i xDrive, N/A
  • Fits 2015-2016 BMW 428i xDrive Gran Coupe, N/A
  • Fits 2014-2016 BMW 435i, N/A
  • Fits 2015-2016 BMW 435i Gran Coupe, N/A
  • Fits 2014-2016 BMW 435i xDrive, N/A
  • Fits 2015-2016 BMW 435i xDrive Gran Coupe, N/A
  • Fits 2014-2016 BMW M235i, N/A
  • Fits 2015-2016 BMW M235i xDrive, N/A
  • Fits 2014-2015 BMW 335i, N/A
  • Fits 2014-2015 BMW 335i xDrive, N/A
  • Fits 2013-2015 BMW ActiveHybrid 3, N/A
  • Fits 2012-2013 BMW 335i, N/A; Sedan
  • Fits 2013 BMW 335i xDrive, N/A; Sedan

Common Service Symptoms

  • Weak or inconsistent cabin cooling
  • Incorrect refrigerant metering at the evaporator
  • Pressure imbalance in the A/C circuit
  • Temperature fluctuation at the vents
  • Expansion valve replacement during BMW A/C repair

Installation Notes

Verify refrigerant type, fitting dimensions, and vehicle application before installation. Replace the O-rings with clean, properly lubricated seals during service, and inspect the surrounding A/C components for contamination or restriction before reassembly. This valve is a block-style unit, so confirm the mounting and line orientation against the original part on the vehicle.

Quality Assurance

Nissens is a thermal systems manufacturer focused on aftermarket cooling and engine-efficiency components. Part number 999229 is produced to Nissens quality standards for service replacement use in the listed BMW applications.

Related reading

This part fits 166 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersFuel TypeNotes
2021BMW230iBase2.0LL4GAS—
2021BMW230i xDriveBase2.0LL4GAS—
2021BMWM2Competition3.0LL6GAS—
2021BMWM240iBase3.0LL6GAS—
2021BMWM240i xDriveBase3.0LL6GASInlet 1: 44mm, Inlet 2: 25.2 mm, Outlet 1: 11.8 mm, Outlet 2: 18 mm
2020BMW230iBase2.0LL4GAS—
2020BMW230i xDriveBase2.0LL4GAS—
2020BMW430iBase2.0LL4GAS—
2020BMW430i Gran CoupeBase2.0LL4GAS—
2020BMW430i xDriveBase2.0LL4GAS—
2020BMW430i xDrive Gran CoupeBase2.0LL4GAS—
2020BMW440iBase3.0LL6GAS—
2020BMW440i Gran CoupeBase3.0LL6GAS—
2020BMW440i xDriveBase3.0LL6GAS—
2020BMW440i xDrive Gran CoupeBase3.0LL6GAS—
2020BMWM2Competition3.0LL6GAS—
2020BMWM2CS3.0LL6GAS—
2020BMWM240iBase3.0LL6GAS—
2020BMWM240i xDriveBase3.0LL6GAS—
2020BMWM4Base3.0LL6GAS—
2020BMWM4CS3.0LL6GAS—
2019BMW230iBase2.0LL4GAS—
2019BMW230i xDriveBase2.0LL4GAS—
2019BMW330i GT xDriveBase2.0LL4GAS—
2019BMW330i xDriveBase2.0LL4GASWagon
2019BMW340i GT xDriveBase3.0LL6GAS—
2019BMW430iBase2.0LL4GAS—
2019BMW430i Gran CoupeBase2.0LL4GAS—
2019BMW430i xDriveBase2.0LL4GAS—
2019BMW430i xDrive Gran CoupeBase2.0LL4GAS—
2019BMW440iBase3.0LL6GAS—
2019BMW440i Gran CoupeBase3.0LL6GAS—
2019BMW440i xDriveBase3.0LL6GAS—
2019BMW440i xDrive Gran CoupeBase3.0LL6GAS—
2019BMWM2Competition3.0LL6GAS—
2019BMWM240iBase3.0LL6GAS—
2019BMWM240i xDriveBase3.0LL6GAS—
2019BMWM4Base3.0LL6GAS—
2019BMWM4CS3.0LL6GAS—
2018BMW230iBase2.0LL4GAS—
2018BMW230i xDriveBase2.0LL4GAS—
2018BMW320iBase2.0LL4GAS—
2018BMW320i xDriveBase2.0LL4GAS—
2018BMW328dBase2.0LL4DIESEL—
2018BMW328d xDriveBase2.0LL4DIESEL—
2018BMW330iBase2.0LL4GAS—
2018BMW330i GT xDriveBase2.0LL4GAS—
2018BMW330i xDriveBase2.0LL4GAS—
2018BMW340iBase3.0LL6GAS—
2018BMW340i GT xDriveBase3.0LL6GAS—
2018BMW340i xDriveBase3.0LL6GAS—
2018BMW430iBase2.0LL4GAS—
2018BMW430i Gran CoupeBase2.0LL4GAS—
2018BMW430i xDriveBase2.0LL4GAS—
2018BMW430i xDrive Gran CoupeBase2.0LL4GAS—
2018BMW440iBase3.0LL6GAS—
2018BMW440i Gran CoupeBase3.0LL6GAS—
2018BMW440i xDriveBase3.0LL6GAS—
2018BMW440i xDrive Gran CoupeBase3.0LL6GAS—
2018BMWM2Base3.0LL6GAS—
2018BMWM240iBase3.0LL6GAS—
2018BMWM240i xDriveBase3.0LL6GAS—
2018BMWM3Base3.0LL6GAS—
2018BMWM4Base3.0LL6GAS—
2017BMW230iBase2.0LL4GAS—
2017BMW230i xDriveBase2.0LL4GAS—
2017BMW320iBase2.0LL4GAS—
2017BMW320i xDriveBase2.0LL4GAS—
2017BMW328dBase2.0LL4DIESEL—
2017BMW328d xDriveBase2.0LL4DIESEL—
2017BMW330iBase2.0LL4GAS—
2017BMW330i GT xDriveBase2.0LL4GAS—
2017BMW330i xDriveBase2.0LL4GAS—
2017BMW340iBase3.0LL6GAS—
2017BMW340i GT xDriveBase3.0LL6GAS—
2017BMW340i xDriveBase3.0LL6GAS—
2017BMW430iBase2.0LL4GAS—
2017BMW430i Gran CoupeBase2.0LL4GAS—
2017BMW430i xDriveBase2.0LL4GAS—
2017BMW430i xDrive Gran CoupeBase2.0LL4GAS—
2017BMW440iBase3.0LL6GAS—
2017BMW440i Gran CoupeBase3.0LL6GAS—
2017BMW440i xDriveBase3.0LL6GAS—
2017BMW440i xDrive Gran CoupeBase3.0LL6GAS—
2017BMWM2Base3.0LL6GAS—
2017BMWM240iBase3.0LL6GAS—
2017BMWM240i xDriveBase3.0LL6GAS—
2017BMWM3Base3.0LL6GAS—
2017BMWM4Base3.0LL6GAS—
2016BMW228iBase2.0LL4GAS—
2016BMW228i xDriveBase2.0LL4GAS—
2016BMW320iBase2.0LL4GAS—
2016BMW320i xDriveBase2.0LL4GAS—
2016BMW328dBase2.0LL4DIESEL—
2016BMW328d xDriveBase2.0LL4DIESEL—
2016BMW328iBase2.0LL4GAS—
2016BMW328i GT xDriveBase2.0LL4GAS—
2016BMW328i xDriveBase2.0LL4GAS—
2016BMW335i GT xDriveBase3.0LL6GAS—
2016BMW340iBase3.0LL6GAS—
2016BMW340i xDriveBase3.0LL6GAS—
2016BMW428iBase2.0LL4GAS—
2016BMW428i Gran CoupeBase2.0LL4GAS—
2016BMW428i xDriveBase2.0LL4GAS—
2016BMW428i xDrive Gran CoupeBase2.0LL4GAS—
2016BMW435iBase3.0LL6GAS—
2016BMW435i Gran CoupeBase3.0LL6GAS—
2016BMW435i xDriveBase3.0LL6GAS—
2016BMW435i xDrive Gran CoupeBase3.0LL6GAS—
2016BMWM2Base3.0LL6GAS—
2016BMWM235iBase3.0LL6GAS—
2016BMWM235i xDriveBase3.0LL6GAS—
2016BMWM3Base3.0LL6GAS—
2016BMWM4GTS3.0LL6GAS—
2016BMWM4Base3.0LL6GAS—
2015BMW228iBase2.0LL4GAS—
2015BMW228i xDriveBase2.0LL4GAS—
2015BMW320iBase2.0LL4GAS—
2015BMW320i xDriveBase2.0LL4GAS—
2015BMW328dBase2.0LL4DIESEL—
2015BMW328d xDriveBase2.0LL4DIESEL—
2015BMW328iBase2.0LL4GAS—
2015BMW328i GT xDriveBase2.0LL4GAS—
2015BMW328i xDriveBase2.0LL4GAS—
2015BMW335iBase3.0LL6GAS—
2015BMW335i GT xDriveBase3.0LL6GAS—
2015BMW335i xDriveBase3.0LL6GAS—
2015BMW428iBase2.0LL4GAS—
2015BMW428i Gran CoupeBase2.0LL4GAS—
2015BMW428i xDriveBase2.0LL4GAS—
2015BMW428i xDrive Gran CoupeBase2.0LL4GAS—
2015BMW435iBase3.0LL6GAS—
2015BMW435i Gran CoupeBase3.0LL6GAS—
2015BMW435i xDriveBase3.0LL6GAS—
2015BMW435i xDrive Gran CoupeBase3.0LL6GAS—
2015BMWActiveHybrid 3Base3.0LL6ELECTRIC/GAS—
2015BMWM235iBase3.0LL6GAS—
2015BMWM235i xDriveBase3.0LL6GAS—
2015BMWM3Base3.0LL6GAS—
2015BMWM4Base3.0LL6GAS—
2014BMW228iBase2.0LL4GAS—
2014BMW320iBase2.0LL4GAS—
2014BMW320i xDriveBase2.0LL4GAS—
2014BMW328dBase2.0LL4DIESEL—
2014BMW328d xDriveBase2.0LL4DIESEL—
2014BMW328iBase2.0LL4GAS—
2014BMW328i GT xDriveBase2.0LL4GAS—
2014BMW328i xDriveBase2.0LL4GAS—
2014BMW335iBase3.0LL6GAS—
2014BMW335i GT xDriveBase3.0LL6GAS—
2014BMW335i xDriveBase3.0LL6GAS—
2014BMW428iBase2.0LL4GAS—
2014BMW428i xDriveBase2.0LL4GAS—
2014BMW435iBase3.0LL6GAS—
2014BMW435i xDriveBase3.0LL6GAS—
2014BMWActiveHybrid 3Base3.0LL6ELECTRIC/GAS—
2014BMWM235iBase3.0LL6GAS—
2013BMW320iBase2.0LL4GAS—
2013BMW320i xDriveBase2.0LL4GAS—
2013BMW328iBase2.0LL4GAS—
2013BMW328i xDriveBase2.0LL4GAS—
2013BMW335iBase3.0LL6GASSedan
2013BMW335i xDriveBase3.0LL6GASSedan
2013BMWActiveHybrid 3Base3.0LL6ELECTRIC/GAS—
2012BMW328iBase2.0LL4GAS—
2012BMW335iBase3.0LL6GASSedan
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dynomax — 39493UAC — EX10448CValeo — 7153006411922948864119289832CB1001V