Page 240 of 400

240 OperationDriving instructionsBrakesTo help prevent brake disk corrosion after 
driving on wet road surfaces (particularly 
salted roads), it is advisable to brake the 
vehicle with considerable force prior to 
parking. The heat generated serves to dry 
the brakes.
If your brake system is normally only 
subject to moderate loads, you should 
occasionally test the effectiveness of the 
brakes by applying above-normal braking 
pressure at higher speeds. This will also 
enhance the grip of the brake pads. 
If the parking brake is released and the 
brake warning lamp in the instrument 
cluster stays on, the brake fluid level in the 
reservoir is too low.Brake pad wear or a leak in the system may 
be the reason for low brake fluid in the 
reservoir.
Have the brake system inspected 
immediately. Contact your authorized 
Mercedes-Benz Center.
All checks and service work on the brake 
system should be carried out by qualified 
technicians only. Contact your authorized 
Mercedes-Benz Center.
Only install brake pads and brake fluid 
recommended by Mercedes-Benz.Warning!
G
After driving in heavy rain for some time 
without applying the brakes or through wa-
ter deep enough to wet brake components, 
the first braking action may be somewhat 
reduced and increased pedal pressure may 
be necessary to obtain expected braking ef-
fect. Maintain a safe distance from vehicles 
in front.
Resting your foot on the brake pedal will 
cause excessive and premature wear of the 
brake pads.
It can also result in the brakes overheating, 
thereby significantly reducing their effec-
tiveness. It may not be possible to stop the 
vehicle in sufficient time to avoid an acci-
dent.
!Be very careful not to endanger other 
road users when you apply the brakes.
Refer to the description of the Brake 
Assist System (BAS) (
page 73).
Warning!
G
If other than recommended brake pads are 
installed, or other than recommended brake 
fluid is used, the braking properties of the 
vehicle can be degraded to an extent that 
safe braking is substantially impaired. This 
could result in an accident. 
     
        
        Page 286 of 400

286 Practical hintsWhat to do if …Display symbol
Display message
Possible cause
Possible solution
!
(Canada only)
;
(USA only)
PARK. BRAKE
RELEASE BRAKE!
You are driving with the parking brake 
set.
Release the parking brake 
(page 45). 
2
BRAKE WEAR
VISIT WORKSHOP!
The brake pads have reached their wear 
limit.
Have the brake pads replaced as soon 
as possible. 
3
BRAKE FLUID
VISIT WORKSHOP!
There is insufficient brake fluid in the 
reservoir.
Risk of accident! Stop the vehicle and 
notify an authorized Mercedes-Benz 
Center. Do not add brake fluid! This 
will not solve the problem. 
Warning!
G
Driving with this message displayed can 
result in an accident. Have your brake 
system checked immediately. Do not add 
brake fluid before checking the brake 
system. Overfilling the brake fluid reservoir 
can result in spilling brake fluid on hot 
engine parts and the brake fluid catching 
fire. You can be seriously burned.
!If you find that the brake fluid in the 
brake fluid reservoir has fallen to the 
minimum mark or below, have the 
brake system checked for brake pad 
thickness and leaks.
!Brake pad thickness must be visually 
checked by a qualified technician at the 
intervals specified in the Service 
booklet. 
     
        
        Page 371 of 400

371 Index
Bi-Xenon headlamps* 361
Bi-Xenon type*
Front lamp bulbs 313
Block heater 264
Blocking
Rear door window operation 70
Bolts
For Minispare wheel 304
Brake Assist System see BAS
Brake fluid 352
Checking 251
Message in display 286
Brake lamp bulbs 311
Brake lamp, high mounted 311
Brake pads
Message in display 286
Brakes 240
Warning lamp 275
Break-in period 238Bulbs, replacing 310
Additional turn signals 310
Backup lamps 311
Brake lamps 311
Fog lamps 310
Front lamps 310
High beam 310
High beam flasher 310
High mounted brake lamp 311
License plate lamps 311, 315
Low beam 310
Parking lamps 310, 311, 313, 314
Rear fog lamp 311, 315
Rear lamps 311
Side marker lamps 310, 314
Standing lamps 310, 311, 313, 314
Tail lamp assemblies 311, 315
Turn signal lamps 310, 311
Button
Audio system 176C
CAC 361
California
Important notice 11
Calling up
Range (distance to empty) 138
Service indicator 266
CAN system 361
Capacities
Fuels, coolants, lubricants, etc. 349
Cargo area see Trunk
Cassette operation
Playing cassettes 186
Cassette player
Operating 121
Catalytic converter 247
CD changer* 189
CD player*
Operating 120
CD* operation 189 
     
        
        Page 384 of 400

384 IndexMultifunction display messages
ABS 284
BAS 281
Battery, vehicle 285
Brake fluid 286
Brake pads 286
Coolant 287–289
Cruise control 290
Display 290
Doors 290
Engine oil 291–292
ESP 282–283
Fuel cap 293
Fuel reserve tank 293
Hood 293
Key, SmartKey 293
Lamps, exterior 293–296
Oil 291–292
Parking brake 286
Restraint system 297Seat belts 297
Sliding/pop-up roof* 299
SRS 297
Steering column not 
properly locked 298
Steering gear oil level 298
Tele Aid* 299
Telephone* 299
Trunk lid 299
Windshield washer fluid 299
Multifunction steering 
wheel 24, 114, 363
Buttons 114
N
Navigation system*
Operating 121
See separate COMAND* 
operating instructions
Night security illumination 104
Setting 131O
Occupant safety 54
Airbags 55
Children and airbags 56
Children in the vehicle 63
Fastening the seat belt 40
Infant and child restraint systems 63
LATCH-type child seat anchors 69
Seat belts 40, 58
Odometer, main 23
Oil level see Engine oil level
Oil see Engine oil
One-touch gearshifting 143
Canceling gear range limit 143
Downshifting 143
Upshifting 143
Opening
Ashtray, center console 220
Ashtray, rear seat 221
Cup holder, in front of 
seat armrest 217