NISSENS 999394 Expansion Valve, Air Conditioning System

Compatible with MERCEDES-BENZ R-CLASS (W251, V251) , MERCEDES-BENZ GL-CLASS (X164) , MERCEDES-BENZ M-CLASS (W164) Show more info
This NISSENS expansion valve is a key component for your vehicle's air conditioning system, ensuring optimal cooling performance.
29.55 EUR
inc. VAT 21%
In stock 4
Delivery 1 day (23.03.2026)
PN 999394
Make NISSENS
EAN 5707286484115

The NISSENS 999394 expansion valve plays a crucial role in regulating the flow of refrigerant within your car's air conditioning system. By precisely controlling the amount of refrigerant entering the evaporator, it helps maintain the desired cabin temperature and ensures efficient operation of the AC. Designed for reliability and performance, this valve is manufactured to meet stringent quality standards. Its proper functioning is essential for preventing system damage and ensuring consistent cooling, even under demanding conditions. Replacing a faulty expansion valve can restore your air conditioning system's effectiveness and improve driving comfort. This component is specifically designed for air conditioning systems, acting as a vital link between the high-pressure and low-pressure sides of the system. Its accurate operation contributes to the overall efficiency and longevity of your vehicle's climate control.

  • Direct replacement for NISSENS expansion valves.
  • Ensures proper refrigerant flow for efficient cooling.
  • Helps maintain optimal cabin temperature.
  • Critical component for air conditioning system performance.
  • Designed for durability and reliable operation.
  • Restores AC effectiveness and driving comfort.
Intake pipe diameter 1 [mm]
+105
Inlet pipe diameter 2 [mm]
14,6
Material
Aluminum
Exhaust diameter 1 [mm]
11,8
Exhaust diameter 2 [mm]
17,7
Coolant
R 134a
  • MERCEDES-BENZ
    • R-CLASS (W251, V251)
      • R 350 CDI 4-matic (251.023, 251.123) (195kW/265PS)
      • R 350 CGI 4-matic (251.057, 251.157) (225kW/306PS)
      • R 350 4-matic (251.065, 251.165) (200kW/272PS)
      • R 500 4-matic (251.075, 251.175) (225kW/306PS)
      • R 320 CDI 4-matic (251.022, 251.122) (165kW/224PS)
      • R 280 CDI 4-matic (251.020) (140kW/190PS)
      • R 63 AMG 4-matic (251.077, 251.177) (375kW/510PS)
      • R 280 (251.054, 251.154) (170kW/231PS)
      • R 350 (251.056, 251.156) (200kW/272PS)
      • R 500 4-matic (251.072, 251.172) (285kW/388PS)
      • R 280 CDI (251.121, 251.026, 251.126) (140kW/190PS)
      • R 300 CDI (251.021, 251.121, 251.026, 251.126) (140kW/190PS)
      • R 300 CDI 4-matic (251.020) (140kW/190PS)
      • R 350 CDI 4-matic (251.022, 251.122) (165kW/224PS)
      • R 350 CDI 4-matic (251.124, 251.125) (155kW/211PS)
      • R 300 (251.054, 251.154) (170kW/231PS)
      • R 320 CDI 4-matic (251.125) (155kW/211PS)
      • R 300 4-matic (251.062) (170kW/231PS)
    • GL-CLASS (X164)
      • GL 350 CDI 4-matic (164.823) (195kW/265PS)
      • GL 450 4-matic (164.871) (250kW/340PS)
      • GL 500 4-matic (164.886) (285kW/388PS)
      • GL 420 CDI 4-matic (164.828) (225kW/306PS)
      • GL 320 CDI 4-matic (164.822) (165kW/224PS)
      • GL 350 CDI 4-matic (164.822) (165kW/224PS)
      • GL 450 CDI 4-matic (164.828) (225kW/306PS)
      • GL 320 CDI / 350 BlueTEC 4-matic (164.824, 164.825) (155kW/211PS)
    • M-CLASS (W164)
      • ML 350 4-matic (164.186) (200kW/272PS)
      • ML 500 4-matic (164.175) (225kW/306PS)
      • ML 280 CDI 4-matic (164.120) (140kW/190PS)
      • ML 320 CDI 4-matic (164.122) (165kW/224PS)
      • ML 63 AMG 4-matic (164.177) (375kW/510PS)
      • ML 420 CDI 4-matic (164.128) (225kW/306PS)
      • ML 500 4-matic (164.172) (285kW/388PS)
      • ML 300 CDI 4-matic (164.120) (140kW/190PS)
      • ML 350 CDI 4-matic (164.122) (165kW/224PS)
      • ML 350 CDI 4-matic (164.125, 164.124) (155kW/211PS)
      • ML 450 CDI 4-matic (164.128) (225kW/306PS)
      • ML 300 CDI 4-matic (164.121) (150kW/204PS)
      • ML 350 CDI 4-matic (164.125, 164.124) (170kW/231PS)
      • ML 320 CDI 4-matic (164.124, 164.125, 164.122) (155kW/211PS)
      • ML 63 AMG 4-matic (164.177) (375kW/510PS)
MERCEDES-BENZ
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