How to adjust the Headlamp on Mercury Mariner?

The Headlamps must be aimed correctly. If adjusted incorrectly they could blind the driver of an oncoming vehicle and cause a serious accident or seriously reduce your ability to see the road. The Headlamps should be checked for proper aim every 12 months and any time a new Headlamp is installed or front end body work is performed. It should be emphasized that the following procedure is only an interim step that will provide temporary adjustment until the Headlamps can be adjusted by a properly equipped shop. The vertical adjustment screws are located behind each Headlamp. There are no horizontal adjustment screws. There are several methods for adjusting the Headlamps. The simplest method requires masking tape, a blank wall and a level floor. Position masking tape vertically on the wall in reference to the vehicle centerline and the centerlines of both Headlamps. Position horizontal tapeline in reference to the centerline of all the Headlamps. It may be easier to position the tape on the wall with the vehicle parked only a few inches away. Adjustment should be made with the vehicle parked 25 feet from the wall, sitting level, the gas tank half-full and no heavy loading the vehicle. Starting with the low beam adjustment, position the high intensity zone so it is two inches below the horizontal line. Adjustment is made by turning the adjusting screw clockwise to raise the beam and counter-clockwise to lower the beam. With the high beams on, the high intensity zone should be vertically centered with the exact center just below the horizontal line. It may not be possible to position the Headlamp aim exactly for both high and low beams. If a compromise must be made, keep in mind that the low beams are the most used and have the greatest effect on safety. Have the Headlamps adjusted by a dealer service department or service station at the earliest opportunity.

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Mercury Mariner Composite Assembly
Part Number: 5E6Z-13008-BA
$110.04 MSRP: $150.36
You Save: $40.32 (27%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Headlamp Assembly; Composite Assembly
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
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Mercury Mariner Composite Assembly
Part Number: 8E6Z-13008-A
$416.37 MSRP: $622.38
You Save: $206.01 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Headlamp Assembly; Composite Assembly
- Manufacturer Note: (CP) Designates Crash Part - When Ordering Please Refer To Crash Part Truckload Program Guidelines
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2011 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Composite Assembly
Part Number: 8E6Z-13008-B
$416.37 MSRP: $622.38
You Save: $206.01 (34%)
ADD TO CART
Product Specifications
- Other Name: Headlamp Assembly; Composite Assembly
- Manufacturer Note: (CP) Designates Crash Part - When Ordering Please Refer To Crash Part Truckload Program Guidelines
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2011 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Headlamp Assembly
Part Number: 8E6Z-13008-BCP
Product Specifications
- Other Name: Headlamp Assy
- Manufacturer Note: (CP) Designates Crash Part - When Ordering Please Refer To Crash Part Truckload Program Guidelines
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2011 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Headlamp Assembly
Part Number: 8E6Z-13008-ACP
Product Specifications
- Other Name: Headlamp Assy
- Manufacturer Note: (CP) Designates Crash Part - When Ordering Please Refer To Crash Part Truckload Program Guidelines
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2011 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Headlamp Assembly
Part Number: 5E6Z-13008-AA
Product Specifications
- Other Name: Headlamp Assy; Composite Assembly
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)

Mercury Mariner Headlamp

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Mercury Mariner Headlamp Parts Questions & Experts Answers

Composite Assembly
8E6Z-13008-A
Q:
How to adjust the Headlamp on Mercury Mariner?
Posted by Quarina L.
A:
The Headlamps must be aimed correctly. If adjusted incorrectly they could blind the driver of an oncoming vehicle and cause a serious accident or seriously reduce your ability to see the road. The Headlamps should be checked for proper aim every 12 months and any time a new Headlamp is installed or front end body work is performed. It should be emphasized that the following procedure is only an interim step that will provide temporary adjustment until the Headlamps can be adjusted by a properly equipped shop. The vertical adjustment screws are located behind each Headlamp. There are no horizontal adjustment screws. There are several methods for adjusting the Headlamps. The simplest method requires masking tape, a blank wall and a level floor. Position masking tape vertically on the wall in reference to the vehicle centerline and the centerlines of both Headlamps. Position horizontal tapeline in reference to the centerline of all the Headlamps. It may be easier to position the tape on the wall with the vehicle parked only a few inches away. Adjustment should be made with the vehicle parked 25 feet from the wall, sitting level, the gas tank half-full and no heavy loading the vehicle. Starting with the low beam adjustment, position the high intensity zone so it is two inches below the horizontal line. Adjustment is made by turning the adjusting screw clockwise to raise the beam and counter-clockwise to lower the beam. With the high beams on, the high intensity zone should be vertically centered with the exact center just below the horizontal line. It may not be possible to position the Headlamp aim exactly for both high and low beams. If a compromise must be made, keep in mind that the low beams are the most used and have the greatest effect on safety. Have the Headlamps adjusted by a dealer service department or service station at the earliest opportunity.
Answered by Ford Parts Specialist Bastien / Nov 08, 2023