How to service and repair the headlamp dimmer switch and steering column multifunction switch on Mercury Grand Marquis?

To service the headlamp dimmer and multifunction switch, depower the SRS. Remove the ignition switch lock cylinder, tilt release lever, and upper shroud. Disconnect the multi-function switch connectors, remove its screws, and reassemble, tightening screws to specified torque. Finally, repower the SRS.

How to service and repair the instrument panel dimmer switch on Mercury Mountaineer?

To repair the instrument panel dimmer switch, start by disconnecting the battery. Then, remove the driver side register and the headlamp switch with its bezel, disconnecting the electrical connectors. Release the three tabs to take out the dimmer switch. To install the new switch, follow the removal steps in reverse.

OEM Mercury Dimmer Switch

Light Dimmer Switch

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13 Dimmer Switches found

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Mercury Headlamp Switch Part Number: 9R3Z-11654-CA
$60.58 MSRP: $97.73
You Save: $37.15 (39%)
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Product Specifications
- Other Name: Switch Assembly - Headlamps; Headlight Switch; Multi Purpose Switch
- Manufacturer Note: BLACK
Fits the following Mercury Models:
- 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
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Mercury Instrument Light Rheostat Part Number: F3DZ-11691-A
$46.09 MSRP: $63.76
You Save: $17.67 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Resistor Assembly
- Manufacturer Note: Rotary thumb wheel switch - instr. pnl lighting - #FODB-AB, F2DB-AA, F3DB-AA, PMF2DB-AA,
- Replaces: F2DZ-5404338-G, F2DZ-5404338-L, F2DZ-5404338-C, F2DZ-5404338-B, F2DZ-11691-A, F2DZ-5404338-F, F2DZ-5404338-D, F2DZ-5404338-E, F2DZ-5404338-K, F2DZ-5404338-H, F2DZ-5404338-J
Fits the following Mercury Models:
- Sable | 1992-1995 | GS, LS, LTS | 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS
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Mercury Dimmer Switch Part Number: 7L1Z-11691-BA
$29.38 MSRP: $41.67
You Save: $12.29 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Resistor Assembly; Instrument Panel Dimmer Switch; Headlight Dimmer Switch; Instrument Light Rheostat; Rheostat
- Manufacturer Note: BLACK
Fits the following Mercury Models:
- 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
- Mountaineer | 2006-2010 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Headlamp Switch Part Number: BE5Z-11654-DA
$45.80 MSRP: $72.73
You Save: $26.93 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Switch Assembly - Headlamps; Headlight Switch; Multi Purpose Switch
- Manufacturer Note: BLACK
- Replaces: 8A8Z-11654-DA, SW-6617
Fits the following Mercury Models:
- Milan | 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
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Mercury Dimmer Switch Part Number: 9E5Z-11691-AA
Product Specifications
- Other Name: Resistor Assembly; Instrument Light Rheostat
Fits the following Mercury Models:
- 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
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Mercury Dimmer Switch Part Number: 6E5Z-11691-AA
Product Specifications
- Other Name: Resistor Assembly; Headlight Dimmer Switch; Instrument Light Rheostat
- Manufacturer Note: Switch - Dimmer
Fits the following Mercury Models:
- Milan | 2006-2009 | Base, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Dimmer Switch Part Number: 3W1Z-11691-AA
Product Specifications
- Other Name: Resistor Assembly; Headlight Dimmer Switch; Instrument Light Rheostat
- Manufacturer Note: Thumbwheel design
Fits the following Mercury Models:
- Grand Marquis | 2003-2011 | 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
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Mercury Headlamp Dimmer Switch Part Number: 5U2Z-11654-A
Product Specifications
- Other Name: Switch Assembly - Lighting; Headlight Dimmer Switch; Multi Purpose Switch
Fits the following Mercury Models:
- Capri | 1984 | GS, RS, RS Turbo | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
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Mercury Dimmer Switch Part Number: YL8Z-11691-AA
Product Specifications
- Other Name: Resistor Assembly; Instrument Panel Dimmer Switch; Instrument Light Rheostat
Fits the following Mercury Models:
- Mariner | 2005-2007 | Base, Convenience, Hybrid, Luxury, Premier | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Resistor Part Number: XS2Z-11691-AA
Product Specifications
- Other Name: Switch Assembly
- Manufacturer Note: Rotary thumb wheel switch-instr. pnl lighting
Fits the following Mercury Models:
- Mystique | 1999-2000 | GS, LS | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
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Mercury Instrument Light Rheostat Part Number: F6XZ-11691-BA
Product Specifications
- Other Name: Resistor Assembly
- Manufacturer Note: Dimmer switch & thumbwheel unit; serviced in "F6XZ 11654-AAA" asy., w/ auto lamp
Fits the following Mercury Models:
- Villager | 1995-2002 | Base, Estate, GS, LS, Nautica, Sport | 6 Cyl 3.0 L GAS, 6 Cyl 3.3 L GAS
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Mercury Instrument Light Rheostat Part Number: F3XY11691A
Product Specifications
- Other Name: Resistor Assembly
Fits the following Mercury Models:
- Villager | 1993-1998 | GS, LS, Nautica | 6 Cyl 3.0 L GAS
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Mercury Dimmer Switch Part Number: 3F2Z-11691-AAA
Product Specifications
- Other Name: Resistor Assembly; Headlight Dimmer Switch; Instrument Light Rheostat
- Manufacturer Note: Switch - Dimmer
Fits the following Mercury Models:
- Monterey | 2004-2007 | Base, Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS

Mercury Dimmer Switch Parts and Q&A

Dimmer Switch
3W1Z-11691-AA
Q: How to service and repair the headlamp dimmer switch and steering column multifunction switch on Mercury Grand Marquis?
A: To service the headlamp dimmer and multifunction switch, depower the SRS. Remove the ignition switch lock cylinder, tilt release lever, and upper shroud. Disconnect the multi-function switch connectors, remove its screws, and reassemble, tightening screws to specified torque. Finally, repower the SRS.
Dimmer Switch
7L1Z-11691-BA
Q: How to service and repair the instrument panel dimmer switch on Mercury Mountaineer?
A: To repair the instrument panel dimmer switch, start by disconnecting the battery. Then, remove the driver side register and the headlamp switch with its bezel, disconnecting the electrical connectors. Release the three tabs to take out the dimmer switch. To install the new switch, follow the removal steps in reverse.