Page 1 of 272
Introduction 4
Instrument Cluster 12
Warning lights and chimes 12
Gauges 17
Entertainment Systems 19
AM/FM stereo 19
AM/FM stereo with single CD 21
AM/FM stereo with CDX6/MP3 27
Auxiliary input jack (Line in) 32
Satellite radio information 36
Climate Controls 39
Heater only 39
Manual heating and air conditioning 40
Lights 42
Headlamps 42
Turn signal control 45
Bulb replacement 46
Driver Controls 53
Windshield wiper/washer control 53
Steering wheel adjustment 54
Power windows 55
Mirrors 56
Speed control 57
Locks and Security 62
Keys 62
Locks 62
Anti-theft system 66
Table of Contents
1
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Page 10 of 272
Headlamp control
(pg. 42)Instrument panel dimmer
control
(pg. 43)Instrument cluster
(pg. 12)
Speed control*
(pg. 57)
Hood release
(pg. 221) Driver air bag
(pg. 86)
Parking brake release
(pg. 153) Turn signal and
wiper/washer control
(pg. 53)
* If equipped
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
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Page 16 of 272

Anti-theft system:Flashes when
the SecuriLock™ Passive Anti-theft
System has been activated.
Speed control (if equipped):
Illuminates when the speed control
is engaged. Turns off when the
speed control system is disengaged.
Turn signal:Illuminates when the
left or right turn signal or the
hazard lights are turned on. If the
indicators stay on or flash faster, check for a burned out bulb.
High beams:Illuminates when the
high beam headlamps are turned on.
Key-in-ignition warning chime:Sounds when the key is left in the
ignition in the OFF/LOCK or ACCESSORY position and the driver’s door
is opened.
Headlamps on warning chime:Sounds when the headlamps or parking
lamps are on, the ignition is off (the key is not in the ignition) and the
driver’s door is opened.
Door ajar warning chime:Sounds when any door is opened (or not
fully closed).
Parking brake ON warning chime:Sounds when the parking brake is
set, the engine is running and the vehicle is driven more than 3 mph
(5 km/h).
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
16
Page 38 of 272

Radio Display Condition Action Required
NO TEXT Artist information not
available.Artist information not
available at this time on
this channel. The
system is working
properly.
NO TEXT Song title information
not available.Song title information
not available at this
time on this channel.
The system is working
properly.
NO TEXT Category information
not available.Category information
not available at this
time on this channel.
The system is working
properly.
NO SIGNAL Loss of signal from
the SIRIUS satellite or
SIRIUS tower to the
vehicle antenna.You are in a location
that is blocking the
SIRIUS signal (i.e.,
tunnel, under an
overpass, dense foliage,
etc). The system is
working properly. When
you move into an open
area, the signal should
return.
UPDATING Update of channel
programming in
progress.No action required. The
process may take up to
three minutes.
CALL SIRIUS
1–888–539–7474Satellite service has
been deactivated by
SIRIUS Satellite
Radio.Call SIRIUS at
1–888–539–7474 to
re-activate or resolve
subscription issues.
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Entertainment Systems
38
Page 45 of 272

5. Locate the vertical adjuster for
each headlamp. Adjust the aim
by using a 4 mm wrench to turn
the adjuster control either
clockwise (to adjust down) or
counterclockwise (to adjust up).
6. In addition to the horizontal line
marked in step 2, a pair of
vertical lines (5) must be
marked at the center line of the
headlamps on the wall or
screen.
7. On the wall or screen, locate the high intensity area of the beam
pattern. The left edge of the high intensity area should be even with
the vertical line corresponding to the headlamp under adjustment. If
the left edge of the high intensity area is not even with the vertical
line, follow the next step to adjust it.
8. Locate the horizontal adjuster
for each headlamp. Use a 4 mm
wrench, turning it clockwise or
counterclockwise, to place the
left edge of the high intensity
area even with the vertical line
corresponding to the headlamp
under adjustment.
TURN SIGNAL CONTROL
•Push down to activate the left
turn signal.
•Push up to activate the right turn
signal.
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
45
Page 141 of 272

WARNING: Do not connect a trailer’s hydraulic brake system
directly to your vehicle’s brake system. Your vehicle may not
have enough braking power and your chances of having a
collision greatly increase.
The braking system of the tow vehicle is rated for operation at the
GVWR not GCWR.
Trailer lamps
Trailer lamps are required on most towed vehicles. Make sure all running
lights, brake lights, turn signals and hazard lights are working. See your
authorized dealer or trailer rental agency for proper instructions and
equipment for hooking up trailer lamps.
Using a step bumper
The optional step bumper is equipped with an integral hitch and requires
only a ball with a 3/4 inch (19 mm) shank diameter. The bumper has a
2,000 lb. (907 kg) trailer weight and 200 lb. (91 kg) tongue weight
capability.
The rated capacities (as shown in this guide) for trailer towing with the
factory bumper are only valid when the trailer hitch ball is installed
directly into the ball hole in the bumper. Addition of bracketry to either
lower the ball hitch position or extend the ball hitch rearward will
significantly increase the loads on the bumper and its attachments. This
can result in the failure of the bumper or the bumper attachments. Use
of any type of hitch extensions should be considered abuse.
Trailer tow connector
The trailer tow connector is located
under the rear bumper, on the
driver’s side of the vehicle.
1
2
34
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USA(fus)
Tires, Wheels and Loading
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Page 142 of 272

Refer to the following chart for information regarding the
factory-equipped trailer tow connector:
Trailer tow connector
Color Function Comment
1. Dark Green Trailer right-hand
turn signalCircuit activated when brake
pedal is depressed or when
ignition is on and right-hand
turn signal is applied.
2. Yellow Trailer left-hand turn
signalCircuit activated when brake
pedal is depressed or when
ignition is on and left-hand
turn signal is applied.
3. Tan/White Tail lamp Relay controlled circuit
activated when the park
lamps/headlamps are on.
4. White Ground Matching vehicle circuit
returns to battery’s negative
ground.
Driving while you tow
When towing a trailer:
•Keep your speed no faster than 70 mph (112 km/h) during the first
500 miles (800 km) of towing a trailer, and don’t make full throttle
starts.
•Turn off the speed control. The speed control may shut off
automatically when you are towing on long, steep grades.
•Consult your local motor vehicle speed regulations for towing a trailer.
•To eliminate excessive shifting, use a lower gear. This will also assist
in transmission cooling. (For additional information, refer to the
Driving with a 5–speed automatic transmissionsection in the
Drivingchapter.)
•Under extreme conditions with large frontal trailers, high outside
temperatures and highway speeds, the coolant gauge may indicate
higher than normal coolant temperatures. If this occurs, reduce speed
until the coolant temperature returns to the normal range. Refer to
Engine coolant temperature gaugein theInstrument Cluster
chapter.
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USA(fus)
Tires, Wheels and Loading
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Page 168 of 272
HAZARD FLASHER CONTROL
The hazard flasher is located on the
steering column, just behind the
steering wheel. The hazard flashers
will operate when the ignition is in
any position or if the key is not in
the ignition.
Push in the flasher control and all
front and rear direction signals will
flash. Press the flasher control again
to turn them off. Use it when your
vehicle is disabled and is creating a
safety hazard for other motorists.
Note:With extended use, the flasher may run down your battery.
FUEL PUMP SHUT-OFF SWITCH
This device stops the electric fuel pump from sending fuel to the engine
when your vehicle has had a substantial jolt.
After an accident, if the engine cranks but does not start, this switch
may have been activated.
2008 B-Series(mbs)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
168