Forward/backward
Pull the lever and slide the seat in the desired
direction.
After releasing the lever, move the seat forward
or back slightly to make sure it engages prop‐
erly.
Height
Move the button in the required direction.
Backrest
Move the button in the required direction.
Electrically adjustable seats
At a glance1Lumbar support2Backrest width3Shoulder support4Backrest5Forward/back, height, tilt6Thigh support
Note
The seat setting for the driver's seat is stored for
the remote control currently in use. When the
vehicle is unlocked via the remote control, the
position is automatically retrieved if the Func‐
tion, refer to page 37, for this is activated.
Adjustments in detail
1.Forward/back.Seite 50ControlsAdjusting50
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Storing positions
Seat, mirror, and steering wheel memory, refer
to page 56.
Adjusting manually
If an electrical malfunction occurs, for example,
press the edges of the mirror glass.
Automatic Curb Monitor
When the reverse gear is engaged, the mirror
glass tilts downward slightly on the front pas‐
senger side. This improves your view of the curb
and other low-lying obstacles when parking, for
example.
Activating1. Slide the mirror changeover switch
to the driver's side mirror position.2.Engage transmission position R.
Deactivating
Slide the mirror changeover switch to the pas‐
senger's side mirror position.
Fold in and out Press the button.
Possible up to approx. 15 mph/20 km/h.
For example, this is advantageous
▷In car washes.▷In narrow streets.▷For folding back mirrors that were folded
away manually.
Mirrors that were folded in are folded out auto‐
matically at a speed of approx. 25 mph/40 km/h.
Fold in the mirror in a car wash
Before entering an automatic car wash,
fold in the exterior mirrors by hand or with the
button; otherwise, they could be damaged, de‐
pending on the width of the vehicle.◀
Automatic heating
Both exterior mirrors are automatically heated
whenever the engine is running.
Automatic dimming feature
Both exterior mirrors are automatically dimmed.
Photocells are used for control in the Interior rear
view mirror, refer to page 58.
Interior rearview mirror
Reducing the blinding effect
From behind when driving at night: turn the
knob.
Interior rearview mirror, automatic
dimming feature
The concept
Photocells are used for control:
▷In the mirror glass.▷On the back of the mirror.Seite 58ControlsAdjusting58
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Tire sizePressure specifications
in bar/PSI
Front: 245/35 R 20
95 Y XL RSC
Rear: 275/30 R 20 97
Y XL RSC
2.5 / 36
-
-
2.9 /42
Compact wheel:
T 135/90 R 17 104 M
Speed up to a max. of
50 mph / 80 km/h
4.2 / 60
With high-speed tuning feature
Tire sizePressure specifications
in bar/PSI
Specifications in bar/
PSI with cold tires
245/45 R 18 100 V M
+S XL A/S RSC
245/40 R 19 98 V M
+S XL A/S RSC
245/45 R 18 96 Y
RSC
225/55 R 17 97 H M
+S RSC
245/45 R 18 100 V M
+S XL RSC
2.7 / 393.2 / 46Front: 245/45 R 18
96 Y RSC
Rear: 275/40 R 18 99
Y RSC
2.7 / 39
-
-
2.7 / 39
Front: 245/40 R 19
94 Y RSC
Rear: 275/35 R 19 96
Y RSC
2.7 / 39
-
-
3.0 / 44
Tire sizePressure specifications
in bar/PSI
Front: 245/35 R 20
95 Y XL RSC
Rear: 275/30 R 20 97
Y XL RSC
2.8 / 41
-
-
3.2 / 46
Compact wheel:
T 135/90 R 17 104 M
Speed up to a max. of
50 mph / 80 km/h
4.2 / 60
Tire identification marks
Tire size
255/50 R 19 103 Y
255: nominal width in mm
50: aspect ratio in %
R: radial tire code
19: rim diameter in inches
103: load rating, not for ZR tires
Y: speed rating, before the R on ZR tires
Speed letter
T = up to 118 mph, 190 km/h
H = up to 131 mph, 210 km/h
V = up to 150 mph, 240 km/h
W = up to 167 mph, 270 km/h
Y = up to 186 mph, 300 km/h
Tire Identification Number
DOT code: DOT xxxx xxx 3510
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
3510: tire age
Tires with DOT codes meet the guidelines of the
U.S. Department of Transportation.
Seite 263Wheels and tiresMobility263
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Tire age
DOT … 3510: the tire was manufactured in the
35th week in 2010.
Recommendation
Regardless of wear, replace tires at least every
6 years.
Uniform Tire Quality Grading
Quality grades can be found where applicable
on the tire sidewall between tread shoulder and
maximum section width.
For example: Treadwear 200; Traction AA;
Temperature A
DOT Quality Grades
Treadwear
Traction AA A B C
Temperature A B C
All passenger car tires must conform to Federal
Safety Requirements in addition to these
grades.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov‐
ernment test course. For example, a tire graded
150 would wear one and one-half, 1 g, times as
well on the government course as a tire graded
100. The relative performance of tires depends
upon the actual conditions of their use, however,
and may depart significantly from the norm due
to variations in driving habits, service practices
and differences in road characteristics and cli‐
mate.
Traction
The traction grades, from highest to lowest, are
AA, A, B, and C.
Those grades represent the tire's ability to stop
on wet pavement as measured under controlled
conditions on specified government test surfa‐ces of asphalt and concrete. A tire marked C may
have poor traction performance.
The traction grade assigned to this tire is based
on straight-ahead braking traction tests, and
does not include acceleration, cornering, hydro‐
planing, or peak traction characteristics.
Temperature
The temperature grades are A, the highest, B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel. Sus‐
tained high temperature can cause the material
of the tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire
failure. The grade C corresponds to a level of
performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety
Standard No. 109. Grades Band A represent
higher levels of performance on the laboratory
test wheel than the minimum required by law.
Temperature grade for this tire
The temperature grade for this tire is es‐
tablished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla‐
tion, or excessive loading, either separately or in
combination, can cause heat buildup and pos‐
sible tire failure.
If necessary, have the vehicle towed.◀
RSC – Run-flat tires
Run-flat tires, refer to page 267, are labeled with
a circular symbol containing the letters RSC
marked on the sidewall.
M+S
Winter and all-season tires with better cold
weather performance than summer tires.Seite 264MobilityWheels and tires264
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CareVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle,
e. g., because of the selected optional equip‐
ment or country variant. This also applies for
safety-related functions and systems.
Car washes
Notes Steam jets or high-pressure washers
When using steam jets or high-pressure
washers, hold them a sufficient distance away
and use a maximum temperature of
140 ℉/60 ℃.
Ensure that a distance of at least 31.5 in‐
ches/50 cm is maintained at all times. Holding
them too close or using excessively high pres‐
sures or temperatures can cause damage or
preliminary damage that may then lead to long-
term damage.
Follow the operating instructions for the high-
pressure washer.◀
Cleaning sensors/cameras with high-
pressure washers
When using high-pressure washers, do not
spray the exterior sensors and cameras, e.g.,
Park Distance Control, for extended periods of
time and only from a distance of at least
12 in/30 cm.◀
Wash your vehicle frequently, particularly in win‐
ter.
Intense soiling and road salt can damage the ve‐
hicle.Automatic car washes
Notes
Note the following:▷Give preference to cloth car washes or those
that use soft brushes in order to avoid paint
damage.▷Make sure that the wheels and tires are not
damaged by the transport mechanisms.▷Fold in the exterior mirrors; otherwise, they
may be damaged, depending on the width of
the vehicle.▷Deactivate the rain sensor, refer to page 72,
to avoid unintentional wiper activation.▷In some cases, an unintentional alarm can be
triggered by the interior motion sensor of the
alarm system. Follow the instructions on
avoiding an unintentional alarm, refer to
page 45.
Guide rails in car washes
Avoid car washes with guide rails higher
than 4 in/10 cm; otherwise, the vehicle body
could be damaged.◀
Before driving into a car wash
In order to ensure that the vehicle can roll in a car
wash, take the following steps:
Automatic transmission:
1.Release parking brake, refer to page 68, and
deactivate Automatic Hold, refer to
page 69.2.Drive into the car wash.3.Depress the brake pedal as needed.4.Engage transmission position N.5.Switch the engine off. In this way, the igni‐
tion remains switched on, and a Check-Con‐
trol message is displayed.Seite 289CareMobility289
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Technical dataVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipmentis also described that is not available in a vehicle,
e. g., because of the selected optional equip‐
ment or country variant. This also applies for
safety-related functions and systems.
Dimensions
Width, height
1Vehicle height: 57.6 inches / 1,464 mm
550d xDrive: 57.5 inches / 1,463 mm2Vehicle width, without mirrors: 73.2 in‐
ches / 1,860 mm3Vehicle width with mirrors: 82.4 in‐
ches / 2,094 mmSeite 296ReferenceTechnical data296
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in the engine compart‐
ment 268
Vehicle jack 281
Vehicle paint 290
Vehicle storage 292
Vehicle wash 289
Ventilation 133
Version of the navigation data 181
Video playback 198
Video playback, iPhone 211
Video playback, snap-in adapter 211
Voice activation, mobile phone 234
Voice activation, short com‐ mands 299
Voice activation system 22
Volume, setting 186
W
Warning messages, refer to Check Control 77
Warning triangle 284
Washer fluid 73
Washer fluid reservoir, ca‐ pacity 298
Washer nozzles, wind‐ shield 72
Washer system 71
Washing, vehicle 289
Water, hybrid system 287
Water on roads 156
Weather Band 190
Weights 297
Welcome lamps 89
What to do after an acci‐ dent 288
Wheel base, vehicle 297
Wheels, changing 265
Wheels, everything on wheels and tires 261
Wheels, Flat Tire Monitor FTM 100 Wheels, Tire Pressure Monitor
TPM 97
Width, vehicle 296
Window defroster, rear 132
Windows, powered 45
Windshield, climate con‐ trol 156
Windshield washer fluid 73
Windshield washer noz‐ zles 72
Windshield washer system 71
Windshield wiper 71
Windshield wipers, fold-out position 72
Winter storage, care 292
Winter tires, suitable tires 266
Winter tires, tread 265
Wiper blades, replacing 275
Wiper fluid 73
Wiper system 71
Wood, care 291
Word match concept, naviga‐ tion 21
Working on the hybrid sys‐ tem 287
Wrench 275
X
Xenon headlamps, bulb re‐ placement 278 Seite 317Everything from A to ZReference317
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