Page 274 of 442

274 OperationDriving instructionsFor more information, see “Winter driving” 
(page 295)
Standing water
Passenger compartmentDriving abroad
Abroad, there is an extensive 
Mercedes-Benz service network at your 
disposal. If you plan to drive into areas 
which are not listed in the index of your 
Mercedes-Benz Center directory, you 
should request pertinent information from 
your authorized Mercedes-Benz Center.
Warning!
G
If the vehicle becomes stuck in snow, make 
sure that snow is kept clear of the exhaust 
pipe and from around the vehicle with the 
engine running. Otherwise, deadly carbon 
monoxide (CO) gases may enter vehicle in-
terior resulting in unconsciousness and 
death.
To assure sufficient fresh air ventilation, 
open a window slightly on the side of the ve-
hicle not facing the windWarning!
G
The outside temperature indicator is not de-
signed to serve as an ice-warning device and 
is therefore unsuitable for that purpose. In-
dicated temperatures just above the freez-
ing point do not guarantee that the road 
surface is free of ice.
!Do not drive through flooded areas or 
water of unknown depth. Before driving 
through water, determine its depth. 
Never accelerate before driving into 
water. The bow wave could force water 
into the engine and auxiliary equip-
ment, thus damaging them. 
If you must drive through standing wa-
ter, drive slowly to prevent water from 
entering the passenger compartment 
or the engine compartment. Water in 
these areas could cause damage to 
electrical components or wiring of the 
engine or transmission, or could result 
in water being ingested by the engine 
through the air intake causing severe 
internal engine damage. Any such dam-
age is not covered by the 
Mercedes-Benz Limited Warranty.
Warning!
G
Always fasten items being carried as secure-
ly as possible.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown 
around inside the vehicle, and cause injury 
to vehicle occupants unless the items are 
securely fastened in the vehicle.
The trunk is the preferred place to carry ob-
jects. 
     
        
        Page 287 of 442

287 Operation
Engine compartment
Battery
Your vehicle is equipped with two batter-
ies:
Auxiliary battery (located in the engine 
compartment).
Main battery (starter and electrical 
consumers; located in the trunk).
These batteries should always be suffi-
ciently charged in order to achieve their 
rated service life. Refer to Service Booklet 
for battery maintenance intervals.
If you use your vehicle mostly for short-dis-
tance trips, you will need to have the bat-
tery charge checked more frequently.
When replacing batteries, always use bat-
teries approved by Mercedes-Benz. 
If you do not intend to operate your vehicle 
for an extended period of time, consult an 
authorized Mercedes-Benz Center about 
steps you need to observe.Batteries contain materials that can harm 
the environment if disposed of improperly. 
Recycling of batteries is the preferred 
method of disposal. Many states require 
sellers of batteries to accept old batteries 
for recycling.
G
Observe all safety instructions 
and precautions when handling 
automotive batteries. 
A
Risk of explosion
D
Keep flames or sparks away 
from battery. Do not smoke.
B
Battery acid is caustic. Do not 
allow it to come into contact 
with skin, eyes or clothing. 
In case it does, immediately 
flush affected area with clear 
water and seek medical help if 
necessary.
E
Wear eye protection.
C
Keep children away.
F
Follow the instructions in this 
Operator's Manual. 
     
        
        Page 375 of 442

375 Practical hints
Batteries
Batteries
Your vehicle is equipped with two batter-
ies:
Main battery (battery for starter and 
electrical consumers; located in the 
trunk).
Auxiliary battery (back-up battery; sta-
bilizes the electrical system if the main 
battery is discharged; located in the en-
gine compartment)
The main battery is in the trunk under the 
luggage box. Remove the luggage box 
(
page 351).
Vehicles with spare wheel1Negative terminal
2Positive terminal
iE55 AMG:
The main battery is located inside the 
trunk area at the top instead of to the 
right. Warning!
G
Jump starting must only be done using the 
main battery in the trunk.
Warning!
G
Failure to follow these instructions can re-
sult in severe injury or death.
Observe all safety instructions and precau-
tions when handling automotive batteries 
(page 287).
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 if necessary.
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. 
     
        
        Page 397 of 442
397 Technical data
Electrical system
Electrical system
Model
E320/E3204MATIC
E500/E5004MATIC
E55AMG
Generator (alternator)
14 V / 150 A
14 V / 150 A
14 V / 180 A
Starter motor
14 V / 1.4 kW
14 V / 1.7 kW
14 V / 1.7 kW
Battery (auxiliary)
12 V / 12 Ah
12 V / 12 Ah
12 V / 12 Ah
Battery (main)
12 V/95 Ah
12 V / 95 Ah
12 V / 95 Ah
Spark plugs
Bosch F8 DPP 332U
NGK PFR 5R-11
Bosch F8 DPP 332U
NGK PFR 5R-11
NGK IL FR 6 A
Electrode gap
0.039 in (1.00 mm)
0.039 in (1.00 mm)
0.031 in (0.8 mm)
Tightening torque
18.5 - 22 lb-ft (25 - 30 Nm)
18.5 - 22 lb-ft (25 - 30 Nm)
18.5 - 22 lb-ft (25 - 30 Nm)