How to Service the A/C Expansion Valve on Mercury Mariner?

Begin recovery of refrigerant before working on the thermostatic expansion valve (TXV). Disconnect the TXV fitting by rotating its nut and then take off the parts including all gasket seals. Eliminate the two TXV bolts first along with the TXV from the system while getting rid of its O-ring seals. Following uninstall steps, tighten the TXV stud to 6 Nm (53 lb-in) before adding the TXV fitting nut. Put new gasket and O-ring parts in place and finish the process by taking the air out of the system and checking for leaks before adding refrigerant. A new receiver/drier must replace the old unit when physical signs show a broken A/C compressor or receiver/drier damage.

OEM Mercury Mariner A/C Expansion Valve

Air Conditioning Expansion Valve

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Mercury Mariner Expansion Valve Part Number: AL8Z-19849-A
$38.07 MSRP: $60.45
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Product Specifications
- Other Name: Valve Assembly - Evaporator Expansion; A/C Expansion Valve
- Replaces: 8L8Z-19849-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2011 Mercury Mariner | Base, Hybrid, Premier | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Mariner Expansion Valve Part Number: 6M6Z-19849-AA
Product Specifications
- Other Name: Valve Assembly - Evaporator Expansion; A/C Expansion Valve
- Replaces: 5M6Z-19849-AA, YG-391
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2007 Mercury Mariner | Hybrid | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV)
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Mercury Mariner Expansion Valve Part Number: 9M6Z-19849-A
Product Specifications
- Other Name: Valve Assembly - Evaporator Expansion; A/C Expansion Valve
- Replaces: 8M6Z-19849-A, YG-407
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2009 Mercury Mariner | Hybrid | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)

Mercury Mariner A/C Expansion Valve

OEM A/C Expansion Valve boasts unmatched quality. Each part goes through full quality checks. They adhere to Mercury's official factory standards. These steps remove flaws and inconsistencies. So you can get A/C Expansion Valve with long life and a perfect fit. Come to our website and find genuine Mercury Mariner parts. We keep a wide inventory of OEM Mariner parts at the highly affordable prices. It's easy to search, compare, and pick what you need. You'll love the clear info and simple checkout. We offer top-rated customer service, and we reply fast. We also ship promptly to ensure your order arrives on time.

A/C Expansion Valve in Mercury Mariner vehicles is really important in controlling the flow of refrigerant in the air conditioning system to achieve the premier possible performance. Through the regulation of this flow, the A/C Expansion Valve plays a part and adds much to the aspects of efficiency and operations of the A/C system. There are different types of the Mercury Mariner car and therefore different types of A/C Expansion Valves may be used in different models of this car depending on the working conditions required. Such variations can be concerning the design and the mechanism of the valve and which will result to a difference in the way the valve will respond and control the refrigerant flow. In conclusion, the A/C Expansion Valve plays a crucial role in deciding the internal climate that one gets in the car, and helps optimize the condition of the air conditioning system of the vehicle.

Mercury Mariner A/C Expansion Valve Parts and Q&A

Expansion Valve
AL8Z-19849-A
Q: How to Service the A/C Expansion Valve on Mercury Mariner?
A:
Begin recovery of refrigerant before working on the thermostatic expansion valve (TXV). Disconnect the TXV fitting by rotating its nut and then take off the parts including all gasket seals. Eliminate the two TXV bolts first along with the TXV from the system while getting rid of its O-ring seals. Following uninstall steps, tighten the TXV stud to 6 Nm (53 lb-in) before adding the TXV fitting nut. Put new gasket and O-ring parts in place and finish the process by taking the air out of the system and checking for leaks before adding refrigerant. A new receiver/drier must replace the old unit when physical signs show a broken A/C compressor or receiver/drier damage.