How to install the turn signal switch and what should be noted about disconnecting the battery on Mercury Grand Marquis?

When installing the turn signal switch, be aware that disconnecting and reconnecting the battery can cause unusual driving behavior as the vehicle adapts, usually needing over 16 km (10 mi) of driving. To install, simply reverse the removal steps.

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

In order to fix the turn signal switch, disconnect the battery ground, steering column tilt lever, and disconnect steering column upper and lower shrouds. Disassemble the multi-function switch connectors, de screw it and put the screws back. Lastly, undo the steps in the removal to install it.

OEM Mercury Grand Marquis Turn Signal Switch

Turn Signal Indicator Switch

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6 Turn Signal Switches found

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Mercury Grand Marquis Multifunction Switch Part Number: 7W1Z-13K359-AA
$96.69 MSRP: $159.09
You Save: $62.40 (40%)
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Product Specifications
- Other Name: Switch Assembly - Direction Indicator; Combination Switch; Multi Purpose Switch
- Replaces: 5W1Z-13K359-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2011 Mercury Grand Marquis | GS, GSL, Limited Edition, LS, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Turn Signal & Hazard Switch Part Number: EOAZ-13341-A
$52.92 MSRP: $72.01
You Save: $19.09 (27%)
ADD TO CART
Product Specifications
- Other Name: Switch - Direction Indicator; Hazard Flasher Switch; Multi Purpose Switch; Switch - Direction Indicator/Warning Flasher
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1984 Mercury Grand Marquis | Base, Colony Park, LS | 8 Cyl 5.0 L GAS
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Mercury Grand Marquis Multifunction Switch Part Number: XW3Z-13K359-BB
Product Specifications
- Other Name: Switch Assembly - Direction Indicator; Multi Purpose Switch; Combination Switch
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1995-1997 Mercury Grand Marquis | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Multifunction Switch Part Number: 3W1Z-13K359-BAB
Product Specifications
- Other Name: Switch Assembly - Direction Indicator; Combination Switch; Multi-Function Switch; Multi Purpose Switch
- Replaces: 3W1Z-13K359-BAA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2004 Mercury Grand Marquis | GS, LS, LSE | 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Turn Signal Switch Part Number: F33Z-13341-B
Product Specifications
- Other Name: Switch - Direction Indicator/Warning Flasher; Hazard Flasher Switch; Multi-Function Switch; Multi Purpose Switch; Combination Switch; Signal Switch; Turn Signal & Hazard Switch
- Replaces: E5FZ-13341-A, E7FZ-13341-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1987-1991 Mercury Grand Marquis | GS, LS | 8 Cyl 5.0 L GAS
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Mercury Grand Marquis Multifunction Switch Part Number: YW3Z-13K359-AB
Product Specifications
- Other Name: Switch Assembly - Direction Indicator; Multi-Function Switch; Multi Purpose Switch; Combination Switch
- Replaces: YW3Z-13K359-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2002 Mercury Grand Marquis | GS, LS | 8 Cyl 4.6 L GAS

Mercury Grand Marquis Turn Signal Switch

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Mercury Grand Marquis Turn Signal Switch Parts and Q&A

Multifunction Switch
YW3Z-13K359-AB
Q: How to install the turn signal switch and what should be noted about disconnecting the battery on Mercury Grand Marquis?
A: When installing the turn signal switch, be aware that disconnecting and reconnecting the battery can cause unusual driving behavior as the vehicle adapts, usually needing over 16 km (10 mi) of driving. To install, simply reverse the removal steps.
Multifunction Switch
7W1Z-13K359-AA
Q: How to service and repair the turn signal switch on Mercury Grand Marquis?
A: In order to fix the turn signal switch, disconnect the battery ground, steering column tilt lever, and disconnect steering column upper and lower shrouds. Disassemble the multi-function switch connectors, de screw it and put the screws back. Lastly, undo the steps in the removal to install it.