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Take your vehicle to a dealer for service if any of the above conditions of
unacceptable moisture are present.
Using the right bulbs
Replacement bulbs are specified in the chart below. Headlamp bulbs
must be marked with an authorized “D.O.T.” for North America and an
“E” for Europe to ensure lamp performance, light brightness and pattern
and safe visibility. The correct bulbs will not damage the lamp assembly
or void the lamp assembly warranty and will provide quality bulb burn
time.
Function Number of bulbs Trade number
Headlamps (high and
low beams)2
H13
Park/turn lamps
(front)2
3457AK (amber)
Rear stop/turn/tail 2 3157K / 4157K
Backup lamp 2 921
Fog lamp (front) 2 9145
Center high-mount
stop lamp5
W5WL
Rear license plate
lamp2
168
All replacement bulbs are clear in color except where noted.
To replace all instrument panel lights - see your authorized dealer
Replacing interior bulbs
Check the operation of all bulbs frequently.
Replacing exterior bulbs
Check the operation of all the bulbs frequently.
Lights
58
2011 Mariner(mrn)
Owners Guide, 1st Printing
USA(fus)
Page 62 of 362
Replacing fog lamp bulbs (if equipped)
1. Make sure the fog lamp switch is
in the off position.
2. From underneath the vehicle,
rotate the harness/bulb assembly
counterclockwise, to remove from
the fog lamp.
3. Carefully disconnect the bulb
from the harness assembly via the
two snap clips.
Install the new bulb in reverse order.
Lights
62
2011 Mariner(mrn)
Owners Guide, 1st Printing
USA(fus)
Page 358 of 362

lubrication specifications .......321
refill capacities ........................321
service points ..................285–286
starting after a collision .........243
Engine block heater .................210
Engine oil ..................................289
checking and adding ..............289
dipstick ....................................289
filter, specifications ........292, 320
recommendations ...................292
refill capacities ........................321
specifications ..........................321
Event data recording ....................7
Exhaust fumes ..........................210
F
Fail safe cooling ........................299
Fleet MyKey programming ........90
Flexible Fuel Vehicle (FFV) ....301
Floor mats .............................83–84
Fluid capacities .........................321
Fog lamps ....................................52
Four-Wheel Drive vehicles
driving off road .......................235
preparing to drive your
vehicle .....................................220
Fuel ............................................301
calculating fuel
economy ............................20, 308
cap ...........................................304
capacity ...................................321
choosing the right fuel ...........305
detergent in fuel .....................306
filler funnel .............................307
filling your vehicle
with fuel ..................301, 304, 308
filter, specifications ........300, 320fuel pump shut-off switch .....243
improving fuel economy ........308
octane rating ...................305, 324
quality ......................................306
running out of fuel .........262, 307
safety information relating to
automotive fuels .....................301
Fuel - flex fuel vehicle
(FFV) .................................301, 305
Fuses ..................................244–245
G
Garage door opener ....................77
Gas cap (see Fuel cap) ............304
Gas mileage (see Fuel
economy) ...................................308
Gauges .........................................16
H
Hazard flashers .........................243
Headlamps ...................................51
aiming ........................................54
bulb specifications ....................58
daytime running lights .............53
flash to pass ..............................53
high beam .................................52
replacing bulbs .........................59
turning on and off ....................51
Heating
heating and air conditioning
system .......................................47
manual heating and air
conditioning system .................44
Hood ..........................................285
I
Ignition ...............................206, 324
Index
358
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Owners Guide, 1st Printing
USA(fus)
Page 359 of 362

Illuminated visor mirror .............65
Infant seats (see Safety
seats) .........................................156
Inspection/maintenance (I/M)
testing ........................................313
Instrument panel
cleaning ...................................280
cluster ........................................12
lighting up panel and
interior .......................................53
J
Jack ............................................251
positioning ...............................251
storage .....................................251
Jump-starting your vehicle ......263
K
Keyless entry system
autolock ...............................96–97
keypad .....................................103
locking and unlocking doors ..104
programming entry code .......103
Keys .....................................89, 106
positions of the ignition .........206
L
Lamps
bulb replacement
specifications chart ..................58
daytime running light ...............53
fog lamps ...................................52
headlamps .................................51
headlamps, flash to pass ..........53
instrument panel, dimming .....53interior lamps ...............55–56, 58
replacing bulbs .........................59
LATCH anchors .........................160
Liftgate ................................84, 101
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........213
Load limits .................................192
Loading instructions .................199
Locks
autolock ...............................96–97
childproof ..................................99
doors ..........................................95
Lubricant specifications ...........321
Lug nuts ....................................261
Luggage rack ...............................86
Lumbar support, seats .....112–113
M
Message center ...........................18
english/metric button ...............22
system check button ................22
warning messages .....................22
Mirrors ...................................71–72
automatic dimming rearview
mirror ........................................71
fold away ...................................72
heated ........................................72
side view mirrors (power) .......72
Moon roof ....................................76
Motorcraftparts ..............283, 320
MyKey ..........................................90
N
Navigation system .......................43
Index
359
2011 Mariner(mrn)
Owners Guide, 1st Printing
USA(fus)