How to service and repair the ignition switch on Mercury Grand Marquis?

Service and repair operations on the ignition switch need to start by depowering the supplemental restraint system (SRS). Start by placing the ignition switch lock cylinder at RUN and use a suitable tool to push upward on the release tab which allows you to pull the cylinder outward. First unlatch and remove the tilt lever from the steering wheel before pushing the upper steering column shroud sides to release it. The upper and lower steering column shrouds need their three screws removed but reinstallation must follow with screw tightening to 2 Nm (18 inch lbs.). Disconnect the ignition switch electrical connector before removing its screw to extract the switch while torquing it to 5 Nm (44 inch lbs.) during installation. The SRS repowering process should start with a reversal of the removal sequence.

How to service and repair the ignition switch on Mercury Mariner?

Service and repair of the ignition switch requires starting with supplemental restraint system (SRS) deactivation. Start by removing the instrument panel steering column cover before proceeding to take off three lower steering column cover mounting screws which will let you remove the lower steering column cover. Before moving forward remove the steering column covers at their specified locations then uninstall the electrical connector of the ignition switch. Proceed by setting the steering column to its most downward position followed by disconnecting the ignition switch by pushing the two tabs and pulling it out of position. The process of installing the replacement ignition switch requires both the return of removal steps and activation of the supplemental restraint system (SRS).

OEM Mercury Ignition Switch

Starter Ignition Switch

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14 Ignition Switches found

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Mercury Ignition Switch Part Number: DG9Z-11572-A
$65.75 MSRP: $108.18
You Save: $42.43 (40%)
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Product Specifications
- Other Name: Switch Assembly - Ignition; Ignition Starter Switch; Ignition Lock Cylinder
- Replaces: 98AZ-11572-A, YS4Z-11572-AC, SW-6343
Fits the following Mercury Models:
- Mariner | 2005-2011 | Base, Convenience, Hybrid, Luxury, 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 | 2006-2011 | Base, Hybrid, Premier | 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
- Montego | 2005-2007 | Luxury, Premier | 6 Cyl 3.0 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 | Base, Premier | 6 Cyl 3.5 L GAS
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Mercury Ignition Switch Part Number: F4DZ-11572-B
$46.77 MSRP: $75.45
You Save: $28.68 (39%)
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Product Specifications
- Other Name: Switch Assembly - Ignition
Fits the following Mercury Models:
- Colony Park | 1990-1991 | GS, LS | 8 Cyl 5.0 L GAS
- Cougar | 1994-1997 | XR-7 | 6 Cyl 3.8 L GAS, 8 Cyl 4.6 L GAS
- Grand Marquis | 1990-2004 | GS, LS, LSE | 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
- Monterey | 2004 | Base, Premier | 6 Cyl 4.2 L GAS
- Mountaineer | 1998-2001 | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
- Sable | 1992-2005 | G, GS, LS, LS Premium, LTS, Platinum Edition | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS
- Villager | 1994-1995 | GS, LS, Nautica | 6 Cyl 3.0 L GAS
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Mercury Ignition Switch Part Number: F29Z-11572-D
$27.48 MSRP: $43.64
You Save: $16.16 (38%)
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Product Specifications
- Other Name: Switch Assembly - Ignition; Ignition Starter Switch
Fits the following Mercury Models:
- Capri | 1991-1994, 1985-1986 | 5.0, Base, GS, RS, XR2 | 4 Cyl 1.6 L GAS, 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Colony Park | 1987-1989 | GS, LS | 8 Cyl 5.0 L GAS
- Cougar | 1984-1993 | Base, LS, XR-7 | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Grand Marquis | 1984-1989 | Base, Colony Park, GS, LS | 8 Cyl 5.0 L GAS, 8 Cyl 5.8 L GAS
- Lynx | 1984-1987 | Base, GL, GS, L, XR3 | 4 Cyl 1.6 L GAS, 4 Cyl 1.9 L GAS, 4 Cyl 2.0 L DIESEL
- Marquis | 1984-1986 | Base, Brougham | 4 Cyl 2.3 L GAS, 4 Cyl 2.3 L LPG, 6 Cyl 3.8 L GAS
- Topaz | 1984-1994 | Base, GS, GS AWD, LS, LS AWD, LTS, LTS AWD, Sport, Sport AWD, XR5, XR5 AWD | 4 Cyl 2.0 L DIESEL, 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Ignition Switch Part Number: 5W1Z-11572-AA
$42.02 MSRP: $66.73
You Save: $24.71 (38%)
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Product Specifications
- Other Name: Switch Assembly - Ignition
Fits the following Mercury Models:
- Grand Marquis | 2005-2011 | GS, GSL, Limited Edition, LS, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Ignition Switch Part Number: 5C3Z-11572-AA
$46.49 MSRP: $73.82
You Save: $27.33 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Switch Assembly - Ignition
- Manufacturer Note: SWITCH, IGNITION ASM
Fits the following Mercury Models:
- Monterey | 2005-2007 | Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS
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Mercury Ignition Switch Part Number: F5TZ-11572-A
$27.14 MSRP: $47.62
You Save: $20.48 (44%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Switch Assembly - Ignition; Ignition Starter Switch
Fits the following Mercury Models:
- Mountaineer | 1997 | Base | 8 Cyl 5.0 L GAS
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Mercury Ignition Switch Part Number: DG9Z-11572-B
$28.63 MSRP: $45.45
You Save: $16.82 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Switch Assembly - Ignition
- Replaces: YS4Z-11572-CA, SW-5506
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 Ignition Switch Part Number: E7DZ-11572-A
$9.66 MSRP: $13.37
You Save: $3.71 (28%)
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Product Specifications
- Other Name: Switch Assembly - Ignition
- Manufacturer Note: REFER TO GROUP 14A411 FOR MATING WIRE ASY.
Fits the following Mercury Models:
- Sable | 1986-1990 | GS, LS | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS
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Mercury Ignition Switch Part Number: F5CZ-11572-AA
Product Specifications
- Other Name: Switch Assembly - Ignition
- Manufacturer Note: "T" shaped connector, BEFORE 12/1/95
- Replaces: F4CZ-11572-A, FOCZ-11572-A
Fits the following Mercury Models:
- Tracer | 1992-1996 | Base, LTS, Trio | 4 Cyl 1.8 L GAS, 4 Cyl 1.9 L GAS
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Mercury Ignition Switch Part Number: F8RZ-11572-AA
Product Specifications
- Other Name: Switch Assembly - Ignition
Fits the following Mercury Models:
- Cougar | 1999-2002 | Base, S, V6 | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
- Mystique | 1998-2000 | GS, LS | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
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Mercury Ignition Switch Part Number: F7CZ-11572-BB
Product Specifications
- Other Name: Switch Assembly - Ignition
- Manufacturer Note: Includes cylinder and switch, M/T
Fits the following Mercury Models:
- Tracer | 1997-1999 | GS, LS, Trio | 4 Cyl 2.0 L GAS
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Mercury Ignition Switch Part Number: F7CZ-11572-AA
Product Specifications
- Other Name: Switch Assembly - Ignition
- Manufacturer Note: Includes cylinder and switch, A/T
Fits the following Mercury Models:
- Tracer | 1997-1999 | GS, LS, Trio | 4 Cyl 2.0 L GAS
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Mercury Ignition Switch Part Number: F5TZ-19A438-A
Product Specifications
- Other Name: Switch Assembly - Ignition
- Manufacturer Note: FROM 01/17/95
Fits the following Mercury Models:
- Mountaineer | 1997-2001 | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Ignition Switch Part Number: F5RZ-11572-B
Product Specifications
- Other Name: Switch Assembly - Ignition
Fits the following Mercury Models:
- Mystique | 1995-1997 | Base, GS, GS Spree, LS, LS Young America | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS

Mercury Ignition Switch

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Mercury Ignition Switch Parts and Q&A

Ignition Switch
5W1Z-11572-AA
Q: How to service and repair the ignition switch on Mercury Grand Marquis?
A:
Service and repair operations on the ignition switch need to start by depowering the supplemental restraint system (SRS). Start by placing the ignition switch lock cylinder at RUN and use a suitable tool to push upward on the release tab which allows you to pull the cylinder outward. First unlatch and remove the tilt lever from the steering wheel before pushing the upper steering column shroud sides to release it. The upper and lower steering column shrouds need their three screws removed but reinstallation must follow with screw tightening to 2 Nm (18 inch lbs.). Disconnect the ignition switch electrical connector before removing its screw to extract the switch while torquing it to 5 Nm (44 inch lbs.) during installation. The SRS repowering process should start with a reversal of the removal sequence.
Ignition Switch
DG9Z-11572-A
Q: How to service and repair the ignition switch on Mercury Mariner?
A:
Service and repair of the ignition switch requires starting with supplemental restraint system (SRS) deactivation. Start by removing the instrument panel steering column cover before proceeding to take off three lower steering column cover mounting screws which will let you remove the lower steering column cover. Before moving forward remove the steering column covers at their specified locations then uninstall the electrical connector of the ignition switch. Proceed by setting the steering column to its most downward position followed by disconnecting the ignition switch by pushing the two tabs and pulling it out of position. The process of installing the replacement ignition switch requires both the return of removal steps and activation of the supplemental restraint system (SRS).