2004 MERCEDES-BENZ SL55AMG brake fluid

ContentsOperation......................................... 237
The first 1000 miles (1500 km) ......... 238
Driving instructions ............................ 239
Drive sensibly – save fuel ............. 239
Drinking and driving ..................... 239
Pedals .......................................... 239
Power assistance ......................... 240
Brakes .......................................... 240
Driving off..................................... 242
Parking ......................................... 242
Tires ............................................. 243
Hydroplaning ................................ 243
Tire traction .................................. 244
Tire speed rating .......................... 244
Winter driving instructions ........... 245
Standing water ............................. 246
Passenger compartment .............. 246
Driving abroad .............................. 246Control and operation of radio
transmitters ................................. 247
Catalytic converter ....................... 247
Emission control .......................... 248
Coolant temperature .................... 249
At the gas station .............................. 250
Refuelling ..................................... 250
Check regularly and before
a long trip ..................................... 252
Engine compartment ......................... 253
Hood ............................................ 253
Engine oil ..................................... 255
Transmission fluid level ................ 258
Oil level in the ABC system .......... 258
Coolant ........................................ 258
Battery ......................................... 260
Windshield washer system and
headlamp cleaning system ........... 261Tires and wheels................................ 262
Important guidelines .................... 262
Life of tires................................... 263
Direction of rotation..................... 263
Checking tire inflation pressure ... 263
Rotating wheels ........................... 267
Winter driving .................................... 268
Winter tires .................................. 268
Block heater (Canada only) .......... 269
Snow chains................................. 269
Maintenance...................................... 271
Clearing the service indicator ...... 271
Service term exceeded ................ 272
Calling up the service indicator .... 272
Resetting the service indicator .... 272
Vehicle care....................................... 274
Cleaning and care of the vehicle .. 274

ContentsFuels, coolants, lubricants, etc. ......... 386
Capacities .................................... 386
Engine oils .................................... 388
Engine oil additives ...................... 388
Air conditioner refrigerant ............ 388
Brake fluid .................................... 389
Premium unleaded gasoline ......... 389
Fuel requirements ........................ 389
Gasoline additives ........................ 390
Coolants ....................................... 391
Windshield and headlamp
washer system ............................. 393
Consumer information ....................... 394
Uniform tire quality grading.......... 394
Technical terms............................... 397Index................................................. 403

82 Safety and SecurityDriving safety systemsThe SBC brake system is automatically ac-
tivated when you

unlock the vehicle with the SmartKey
or the SmartKey with KEYLESS-GO*


open the driver’s or passenger door


turn the SmartKey in the starter switch
to position1


in vehicles with KEYLESS-GO*, press
start/stop button on gear selector le-
ver once


depress the brake pedal


release the parking brake
iIf the SBC brake system is activated as
the brake pedal is first depressed, you
may feel a reduced pedal resistance
and longer pedal travel than normal.
When releasing the pedal, you may also
feel the brake pedal pulsate and you
may hear a sound which is caused by
the activation of the SBC pump. This is
normal and not an indication of a mal-
function. Pedal travel returns to normal
when you release the brake pedal and
the sound soon ceases.
If you experience the above while driv-
ing and the red brake warning lamp
(page 284) illuminates and/or warn-
ing messages appear in the multifunc-
tion display (
page 299), the brake
system is malfunctioning. Follow the in-
structions of the warning message(s)
and have the brake system checked
immediately.
Warning!
G
Have brake pad replacement and other work
on the SBC brake system carried out by
qualified technicians only. Contact your
Mercedes-Benz Center for further informa-
tion. The SBC brake system must be deacti-
vated prior to working on the system. High
pressure is intermittently built up in the sys-
tem as part of its automatic self-test. In ad-
dition, the system is automatically activated
when the vehicle is unlocked by remote con-
trol, when the driver or passenger door is
opened, when the SmartKey in the starter
switch is turned to position1 or the
KEYLESS-GO* start/stop button is pressed
once, when the brake pedal is depressed or
when the parking brake is released. Failure
to deactivate the system prior to mainte-
nance will cause brake pistons to extend
and brake fluid to leak, which may result in
injuries (contusions and acid burns). Extend-
ed brake pistons may also cause injury.

241 Operation
Driving instructions
To 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 sub-
jected to moderate loads, you should occa-
sionally 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 clus-
ter stays on, there is a malfunction in the
SBC brake system (
page 81) or 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 res-
ervoir.
Have the brake system inspected immedi-
ately.
All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact an authorized
Mercedes-Benz Center.
Only install brake pads and brake fluid rec-
ommended by Mercedes-Benz.After hard braking, it is advisable to drive
on for some time, rather than immediately
parking, so the air stream will cool down
the brakes faster.
!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 77).
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.
Be certain to read and observe the warning
notices on brake pad replacement
(page 82).
!When driving down long and steep
grades, relieve the load on the brakes
by shifting into a lower gear to use the
engine’s braking power. This helps pre-
vent overheating of the brakes and re-
duces brake pad wear.

252 OperationAt the gas stationCheck regularly and before a long trip
1Windshield washer and headlamp
cleaning system
For information on refilling the reser-
voir, see “Windshield washer system
and headlamp cleaning system”
(
page 261).
2Brake fluid
For information on brake fluid, see “Fu-
els, coolants, lubricants, etc.”
(page 386).3Coolant level
For information on coolant, see “Cool-
ant” (
page 258).
Brake fluidEngine oil level
For more information on engine oil, see
“Checking engine oil level with the control
system” (
page 255).
Opening hood see (
page 253).
Vehicle lighting
Check function and cleanliness. For more
information, see “Replacing bulbs”
(
page 331).
Exterior lamp switch see “Switching on
headlamps” (
page 46).
Tire inflation pressure
For information on tire inflation pressure,
see “Checking tire inflation pressure”
(
page 263).
!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 immediately. Noti-
fy an authorized Mercedes-Benz Center
immediately. Do not add brake fluid as
this will not solve the problem. For
more information, see the “Practical
hints” section (
page 301).

274 OperationVehicle care
Vehicle careCleaning and care of the vehicle
While in operation, even while parked, your
vehicle is subjected to varying external in-
fluences which, if gone unchecked, can at-
tack the paintwork as well as the
underbody and cause lasting damage.Such damage is caused not only by ex-
treme and varying climatic conditions, but
also by:


Air pollution


Road salt


Tar


Gravel and stone chipping
To avoid paint damage, you should imme-
diately remove:


Grease and oil


Fuel


Coolant


Brake fluid


Bird droppings


Insects


Tree resins, etc.
Frequent washing reduces and / or elimi-
nates the aggressiveness and potency of
the above adverse influences.More frequent washings are necessary to
deal with unfavorable conditions:


near the ocean


in industrial areas (smoke, exhaust
emissions)


during winter operation
You should check your vehicle from time to
time for stone chipping or other damage.
Any damage should be repaired as soon as
possible to prevent corrosion.
In doing so, do not neglect the underbody
of the vehicle. A prerequisite for a thor-
ough check is a washing of the underbody
followed by a thorough inspection. Dam-
aged areas need to be re-undercoated.
Your vehicle has been treated at the facto-
ry with a wax-base rustproofing in the body
cavities which will last for the lifetime of
the vehicle. Post-production treatment is
neither necessary nor recommended by
Mercedes-Benz because of the possibility
of incompatibility between materials used
in the production process and others ap-
plied later.
Warning!
G
Many cleaning products can be hazardous.
Some are poisonous, others are flammable.
Always follow the instructions on the partic-
ular container. Always open your vehicle’s
doors or windows when cleaning the inside.
Never use fluids or solvents that are not de-
signed for cleaning your vehicle.

284 Practical hintsWhat to do if …Problem
Possible cause
Suggested solution
3
(Canada only)
;
(except Canada)
The red brake warning lamp
comes on while driving and
you hear a warning sound.
The red brake warning lamp
comes on while driving
You are driving with the parking brake set,
or
there is a malfunction in the SBC brake system.
There is insufficient brake fluid in the reservoir.

Release the parking brake
(page 45).

Read and observe messages in the
display (
page 291).

Risk of accident! Carefully 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 the brake warning lamp illumi-
nated can result in an accident. Have your
brake system checked immediately if the
brake warning lamp stays on. Do not add
brake fluid before checking the brake sys-
tem.
Overfilling the brake fluid reservoir can re-
sult 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.

301 Practical hints
What to do if …
Left display
Right display
Possible cause
Possible solution
Except Canada:;Canada only:3
Brake fluid
below min. level!
Visit
workshop!
There is insufficient brake fluid in
the reservoir.

Risk of accident! Stop the vehicle as soon as
it is safe to do so and notify an authorized
Mercedes-Benz Center.
Do not add brake fluid! This will not solve the
problem.
!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.
Warning
G
Low brake fluid in the reservoir may cause
the braking system to fail!
If necessary, apply full pressure to the brake
pedal. Brakes are only applied to the front
wheels. Stopping distance is increased!
Low brake fluid in the reservoir may cause
the braking system to fail!
Do not add brake fluid before checking the
brake system. Overfilling the brake fluid res-
ervoir can result in spilling brake fluid on hot
engine parts and the brake fluid catching
fire. You can be seriously burned.