2008 MERCEDES-BENZ CL65AMG battery

706 Practical hintsBatteriesStarter battery
Connect the switched-off charging de-
vice to the terminals of the starter bat-
tery. Observe the operating
instructions in the manual for the
charging device while doing so.
Reinstalling starter battery
Install starter battery in engine com-
partment.

Swing retaining bar down.
Reconnecting starter battery

Make sure that the consumer battery in
the trunk is correctly installed and con-
nected.

Turn SmartKey in starter switch to po-
sition 0 and remove.

Connect the positive lead and fasten its
cover2 (
page 704).

Connect negative lead1
(page 704).

Attach ventilation tube.

Switch on the ignition (
page 365).

Start the engine (
page 406).

Check vehicle functions.
!
Only use charging devices with a maximum
charging voltage of 14.8 V.
Warning!
G
During the charge procedure, there is a risk
of acid burns due to gases escaping from
the battery. Do not bend over the battery
during the charge procedure.
!
The battery and the battery ventilation hose
must always be securely installed when the vehi-
cle is in operation.
!
Always connect the starter battery in the or-
der described below. Otherwise, the vehicle’s
electronics could be damaged.
Warning!
G
Do not drive without a properly installed and
connected consumer battery.
Have any work on the consumer battery car-
ried out by an authorized Mercedes-Benz
Center.
!
Never invert the terminal connections.
!
Make sure that the battery has a plug where
the ventilation tube is attached to it.

707 Practical hints
Jump starting
Jump starting
If the starter battery is discharged, the en-
gine can be started with jumper cables and
the battery of another vehicle. Observe the
following:

Jump starting should only be performed
when the engine and catalytic convert-
er are cold.


Do not start the engine if the battery is
frozen. Let the battery thaw out first.


Only use 12-volt battery to jump start
your vehicle. Jump starting with a high-
er voltage battery could damage the ve-
hicle’s electrical system, which will not
be covered by the Mercedes-Benz Lim-
ited Warranty.


Only use jumper cables with sufficient
cross-section and insulated terminal
clamps.


Always make sure that the jumper ca-
bles are not on or near pulleys, fans or
other parts that move when an engine
is started or running.
Warning!
G
Failure to follow these directions will cause
damage to the electronic components, and
can lead to a battery explosion and severe
injury or death.
Never lean over batteries while connecting
or jump starting, 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 if necessary.
A battery will also produce hydrogen gas,
which is flammable and very explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking, etc.
Attempting to jump start a frozen battery
can result in it exploding, causing personal
injury.
Read all instructions before proceeding.
!
Do not tow-start the vehicle.
!
Jump starting should only be performed on
the starter battery installed in the engine com-
partment.
Avoid repeated and lengthy starting attempts.
Do not attempt to start the engine using a bat-
tery quick charge unit.
If engine does not run after several unsuccessful
starting attempts, have it checked at the nearest
authorized Mercedes-Benz Center.
Excessive unburned fuel generated by repeated
failed starting attempts may damage the catalyt-
ic converter and may present a fire risk.
Make sure the jumper cables do not have loose
or missing insulation.
Make sure the cable clamps do not touch any
other metal part while the other end is still at-
tached to a battery.

708 Practical hintsJump startingJump starting should only be performed on
the starter battery. The starter battery is
located in the engine compartment on the
passenger side (
page 704).

Make sure the two vehicles do not
touch.

Secure vehicle in place with electronic
parking brake (
page 412).

Shift the automatic transmission to
park positionP (
page 417).

Turn off all electrical consumers, ex-
cept hazard warning flashers or work
lights.

Open the hood (
page 553).

Start the engine of the vehicle with the
charged battery and run at idle speed.1Negative clamp
2Negative terminal of charged battery
3Positive terminal of charged battery
4Positive terminal of discharged battery
Warning!
G
Keep flames or sparks away from battery.
Do not smoke.
Observe all safety instructions and precau-
tions when handling automotive batteries
(page 702).
i
Vehicles with KEYLESS-GO: remove the
KEYLESS-GO button (
page 366) and use the
SmartKey with KEYLESS-GO like a normal
SmartKey.

709 Practical hints
Jump starting

Remove red cover from positive
terminal4.

Connect positive terminal3 of the
charged battery with positive
terminal4 of the discharged battery
with the jumper cable. Clamp cable to
charged battery3 first.

Connect negative terminal2 of
charged battery to jumper cables and
attach other end of the jumper cable
with the negative clamp1 to a suit-
able ground point on the vehicle.

Get into vehicle and start engine within
30 seconds.
If the starting attempt does not suc-
ceed: 
Turn the SmartKey in starter switch
to position 0.

Take out the SmartKey.

Turn off engine of donor vehicle, re-
start it and let it run at idle speed
for several minutes.

Disconnect the jumper cable during
this time.

Reconnect jumper cable as de-
scribed before.

Restart engine.

While the engine is running, switch off
several electrical consumers such as
the blower.

Disconnect jumper cables first nega-
tive clamp1 from ground point and
negative terminal2, then from posi-
tive terminals4 and3.

Have the battery checked at the near-
est authorized Mercedes-Benz Center.
!
Never invert the terminal connections.

710 Practical hintsTowing the vehicleMercedes-Benz recommends that the
vehicle be transported with all wheels off
the ground using flatbed or appropriate
wheel lift/dolly equipment. This method is
preferable to other types of towing.
When circumstances do not permit the
recommended towing methods, the
vehicle may be towed with all wheels on
the ground or front axle raised only so far
as necessary to have the vehicle moved to
a safe location where the recommended
towing methods can be employed.!
To prevent damage during transport, do not
tie down vehicle by its chassis or suspension
parts.
!
Before towing the vehicle observe the fol-
lowing instructions:


Do not tow-start the vehicle.


Use flatbed or wheel lift/dolly equipment
with the ignition switched off.


Do not tow with sling-type equipment. Tow-
ing with sling-type equipment over bumpy
roads will damage radiator and supports.


Towing of the vehicle should only be done
using the properly installed towing eye bolt.
Never attach a tow cable, tow rope or tow
rod to the vehicle chassis, frame or suspen-
sion parts. For more information see “Install-
ing towing eye bolt” (
page 713).
i
If the battery is disconnected or discharged


the SmartKey will not turn in the starter
switch


the automatic transmission will remain
locked in park positionP.
For more information see “Batteries”
(
page 702) or “Jump starting” (
page 707).

731 Technical data
Electrical system
Electrical system
Model
CL 550
CL 600, CL 65 AMG
CL 63 AMG
Generator (alternator)
14 V/220 A
14 V/220 A
14 V/220 A
Starter motor
12 V/1.7 kW
12 V/1.7 kW
12 V/2.1 kW
Starter battery
12 V/35 Ah
12 V/35 Ah
12 V/35 Ah
Electrical consumer battery
12 V/95 Ah
12 V/95 Ah
12 V/95 Ah
Spark plugs
NGK PLKR 6A
Bosch Y 7 MPP 33
NGK IFR 6Q-G
–1
1Contact an authorized Mercedes-Benz CenterElectrode gap
0.031 in (0.8 mm)
0.028 in (0.7 mm)
0.039 in (1.0 mm)
Tightening torque
15 – 18 lb-ft (20 – 25 Nm)
18 – 22 lb-ft (25 – 30 Nm)
18 – 22 lb-ft (25 – 30 Nm)

744 IndexAudio AUX (COMAND) 125
Audio DVD
Fast forward/rewind (COMAND) 123
Menu overview (COMAND) 119
Pause function (COMAND) 121
Stop function (COMAND) 121
Auto-dimming, Rear view mirrors 383
Automatic climate control 491
Adjusting air distribution
(COMAND) 271
Adjusting air flow from air vents
(COMAND) 275
Adjusting air volume (COMAND) 271
Adjusting the footwell temperature
(COMAND) 274
Air recirculation mode 496
Central climate control menu
(COMAND) 272
Defrosting 494
Operating via COMAND 269
Rear window defroster 496
Selecting Mono mode
(COMAND) 273
Setting temperature (COMAND) 270
Setting the temperature 494Switching cooling on or off
(COMAND) 272
Automatic headlamp mode 301, 392
Automatic lighting control, Interior
lighting 398
Automatic locking when driving 363
Automatic shift program 427
Automatic transmission
Accelerator position 424
Automatic shift program 427
Emergency operation
(Limp-Home Mode) 433
Fluid 733
Fluid level 558
Gear ranges 426
Gear selector lever 417
Gear shifting malfunctions 433
Hill start assist system 425
Kickdown 424
Kickdown, manual shift program
(CL 63 AMG and CL 65 AMG) 432
Manual shift program mode
(CL 63 AMG and CL 65 AMG) 430
Program mode selector switch 427
Shifting procedure 420Starting the engine 406
Steering wheel gearshift control 428
Transmission fluid 558
Transmission positions 421
AUX
Audio 125
Video 126
AUX jacks 125
B
Backup lamps
Replacing bulbs 689
Bar 586
BAS 67
Batteries, SmartKey
Checking battery condition 361
Replacing 686
Batteries, SmartKey with KEYLESS-GO*
Checking battery condition 361
Replacing 686
Batteries, vehicle 702
Charging 705
Discharged, Jump starting 707
Disconnecting 704
For electrical consumers 702
For starter 702

749 Index
Loading (COMAND) 116
Playback options (COMAND) 124
Selecting a medium (COMAND) 122
Selecting a track (COMAND) 122
Setting the audio format
(COMAND) 124
Video (COMAND) 128
E
Easy-entry/exit feature 373
COMAND menu 264
EBP 70
Electrical fuses see Fuses
Electrical system, Technical Data 731
Electronic Brake Proportioning see EBP
Electronic parking brake 412
Indicator lamp 31, 610
Messages in display 646
Warning lamp 31, 610
Electronic Stability Program see ESP
®
Electronic traction system 72
Emergency call system 522
Emergency calls, Tele Aid 523
Emergency engine shut-down 717
Emergency operation
(Limp-Home Mode) 433Emergency operations
Locking the vehicle 684
Releasing from inside 504
Remote door lock 529
Remote door unlock 529
Unlocking the trunk 685
Unlocking the vehicle 684
Emergency Tensioning Device see ETD
Emergency, In case of
Battery, Jump starting 707
First aid kit 681
Flat tire 696
Fuses 714
Roadside Assistance 16
Roadside Assistance (Tele Aid) 525
Towing the vehicle 710
Emission control 548
Emission control information label 723
Emission control system warranties 14
Engine
Belt layout 724
Cleaning 597
Compartment 553
Coolant 559, 735, 738
Malfunction indicator lamp 31, 612Number 722, 723
Oil 557, 733, 736
Oils 554
Residual heat and ventilation 498
Starting 406
Technical data 725
Turning off 415
Engine coolant see Coolant
Engine oil 554
Adding 557
Additives 736
Checking level 554
Checking level (Dipstick) 557
Checking level (Instrument cluster
control system) 555
Consumption 554
Dipstick 557
Filler neck 557, 558
Messages in display 556, 670
Recommended engine oils and oil
filters 733
ESP
®
70
Messages in display 641, 652
Warning lamp 31, 609, 614