battery replacement MERCEDES-BENZ SL-Class 2001 R129 Owner's Manual

5 Contents
Practical hints First aid kit ..................................... 216
Stowing things in the vehicle ...... 216
Vehicle tools .................................... 217
Vehicle jack ..................................... 218
Fuses ................................................ 219
Hood .................................................220
Automatic transmission
fluid level ...................................222
Checking engine oil level .............222
Coolant level ...................................224
Adding coolant ...............................225
Windshield and
headlamp washer
fluid mixing ratio ......................226
Wheels .............................................227
Tire replacement ............................227
Rotating wheels ..............................228
Spare wheel ....................................229
Changing wheels ........................... 231
Tire inflation pressure ..................235
Battery .............................................237
Battery Recycling .......................238Jump starting ................................. 239
Towing the vehicle ........................ 241
Exterior lamps ............................... 243
Headlamp assembly
(Halogen) .................................... 244
Taillamp assemblies .................. 250
Changing batteries in the
remote control ........................... 252
Synchronizing ............................ 253
Raising soft top manually ............ 254
Replacing wiper blade ................. 258
Manual release of
fuel filler flap ............................ 260
Trunk lamp ..................................... 260
Vehicle care Cleaning and care
of the vehicle ............................. 262
Power washer ............................. 263
Tar stains .................................... 263
Paintwork, Painted Body
Components ................................ 263
Engine cleaning ......................... 264
Vehicle washing ......................... 264Ornamental moldings ................264
Headlamps, taillamps,
turn signal lenses ......................264
Window cleaning .......................265
Light alloy wheels ......................265
Instrument cluster .....................265
Steering wheel and
gear selector lever ......................265
Cup holder ...................................265
Seat belts .....................................266
Headliner, shelf behind
roll bars, and other hard
plastic trim items .......................266
Soft top .........................................266
Headliner .....................................267
Wind screen ................................267
Automatic antenna .....................267
Wiper blade .................................267
Headlamp cleaning
system ..........................................267
Leather upholstery .....................268
Plastic and rubber parts ............268
Illuminated door sill panels .....268

29 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Note:
Do not give the master key to an unauthorized person.
Obtaining replacement keys
Your vehicle is equipped with a theft deterrent locking
system requiring a special key manufacturing process.
For security reasons, replacement keys can only be
obtained from your authorized Mercedes-Benz Center.
Central locking system
Remote control
Due to the extended operational range of the remote
control, it could be possible to unintentionally lock or
unlock the vehicle by pressing the transmit button.
The vehicle doors, trunk, storage compartment in
armrest, and fuel filler flap can be centrally locked and
unlocked via remote control.1Transmit button
‹ Locking
ΠUnlocking
ŠOpening trunk
2PANIC button
3Release button for master key
4Transmitter eye and lamp for battery check

215 Contents - Practical hints
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Practical hints First aid kit ..................................... 216
Stowing things in the vehicle ...... 216
Vehicle tools .................................... 217
Vehicle jack ..................................... 218
Fuses ................................................ 219
Hood .................................................220
Automatic transmission
fluid level ...................................222
Checking engine oil level .............222
Coolant level ...................................224
Adding coolant ...............................225Windshield and
headlamp washer
fluid mixing ratio ..................... 226
Wheels ............................................ 227
Tire replacement ........................... 227
Rotating wheels ............................. 228
Spare wheel .................................... 229
Changing wheels ........................... 231
Tire inflation pressure ................. 235
Battery ............................................. 237
Battery Recycling ....................... 238
Jump starting ................................. 239
Towing the vehicle ........................ 241Exterior lamps ................................243
Headlamp assembly
(Halogen) .....................................244
Taillamp assemblies ..................250
Changing batteries in the
remote control ...........................252
Synchronizing ............................253
Raising soft top manually .............254
Replacing wiper blade .................258
Manual release of
fuel filler flap .............................260
Trunk lamp .....................................260

237 Battery
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Battery
Important!
Battery replacement information:
The maintenance-free battery is located in the trunk
behind the right side cover panel.
The service life of the battery is dependent on its
condition of charge. The battery should always be kept
sufficiently charged, in order to last an optimum length
of time.Therefore, we strongly recommend that you have the
battery charge checked frequently, and corrected if
necessary, especially if you use the vehicle less than
approximately 200 miles (300 km) per month,
mostly for short distance trips, or if it is not used for
long periods of time.
Only charge a battery with a battery charger after the
battery has been disconnected from the vehicle’s
electrical circuit.
Always disconnect the battery negative lead first and
connect last.
When removing and connecting the battery, always
make sure that all electrical consumers are off and the
key is in steering lock position 0. The battery must
always be securely installed when the vehicle is in
operation. During removal and installation always
protect the disconnected battery positive (+) terminal
with the cover attached to the battery.
While the engine is running the battery terminal clamps
must not be loosened or detached, otherwise the
generator and other electronic components will be
damaged.
Wa r n i n g !
Failure to follow these instructions can result in
severe injury or death.Never lean over batteries while connecting, you
might get injured.Battery fluid contains sulfuric acid. Do not allow
this fluid to come in contact with eyes, skin or
clothing. In case it does, immediately flush affected
area with water and seek medical help.A battery will also produce hydrogen gas, which is
flammable and explosive. Keep flames or sparks
away from battery, avoid improper connection of
jumper cables, smoking etc.

253 Remote control
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Change batteries, inserting new ones with plus (+) side
facing up.
Press battery cover onto housing until locked in place.Important!
Batteries contain materials that can harm the
environment if disposed of improperly. Recycling of
batteries is the preferred method of disposal. For
disposal, please follow manufacturer’s recommendation
on battery package.
Replacement Battery:
Lithium, type CR 2025 or equivalent.
Synchronizing remote control
The system may have to be resynchronized, if the
transmitter is without voltage for several minutes.
To synchronize system, aim transmitter eye at vehicle
and briefly press transmit buttonŒ or‹ twice.
Within approx. 30 seconds insert key in steering lock
and turn it to position 2.
The remote control should once again be operational.