How to Service and Repair the Cabin Ambient Temperature Sensor on Mercury Grand Marquis?

To service the cabin temperature sensor, start by taking off the upper radiator sight shield. Then, disconnect the electrical connector and remove the ambient temperature sensor. Finally, reverse the steps to reinstall the components.

OEM Mercury Ambient Temperature Sensor

Inside Outside Auto Thermometer Gauge

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Mercury Coolant Temperature Sensor, Driver Side Part Number: AE5Z-12A647-A
$40.76 MSRP: $64.73
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Product Specifications
- Other Name: Sensor Assembly; Ambient Air, Engine Coolant, Air Charge, and Intake Air Temperature Sensors; HVAC Switch; Temperature Sensor; Ambient Temperature Sensor; Air Temperature Sensor; Sensor
- Position: Driver Side
- Replaces: 5W7Z-12A647-A, F3VY-12A647-A
Fits the following Mercury Models:
- Grand Marquis | 1998-2011 | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
- Mariner | 2008-2011 | 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
- Milan | 2010-2011 | Base, Hybrid, Premier | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L FLEX
- Montego | 2005-2007 | Luxury, Premier | 6 Cyl 3.0 L GAS
- Monterey | 2004-2007 | Base, Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS
- Mountaineer | 2002-2010 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
- Sable | 2008-2009, 1992-2005 | Base, G, GS, LS, LS Premium, LTS, Platinum Edition, Premier | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS, 6 Cyl 3.5 L GAS, 6 Cyl 3.8 L GAS
- Villager | 1999-2002 | Base, Estate, Sport | 6 Cyl 3.3 L GAS
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Mercury Ambient Temperature Sensor Part Number: E6DZ19E702A
$13.78 MSRP: $18.75
You Save: $4.97 (27%)
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Product Specifications
- Other Name: Sensor Assembly; Air Temperature Sensor
Fits the following Mercury Models:
- Cougar | 1992-1993 | LS, XR-7 | 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS

Mercury Ambient Temperature Sensor Parts and Q&A

Coolant Temperature Sensor, Driver Side
AE5Z-12A647-A
Q: How to Service and Repair the Cabin Ambient Temperature Sensor on Mercury Grand Marquis?
A: To service the cabin temperature sensor, start by taking off the upper radiator sight shield. Then, disconnect the electrical connector and remove the ambient temperature sensor. Finally, reverse the steps to reinstall the components.