Page 301 of 506

299 Operation
At the gas station
At the gas station
Refueling
The fuel filler flap is located on the 
right-hand side of the vehicle towards the 
rear. Locking / unlocking the vehicle with 
the remote control automatically 
locks / unlocks the fuel filler flap.
Turn the engine off 
by turning the SmartKey to 
position0. 
by pressing the KEYLESS-GO* 
start/stop button. Open the driv-
er’s door (with the driver’s door 
open, starter switch is now in 
position0, same as SmartKey re-
moved from starter switch).
Remove the SmartKey from the starter 
switch.
Open the fuel filler flap by pushing at 
the point indicated by the arrow.
The fuel filler flap springs open.
Turn the fuel cap to the left and hold on 
to it until possible pressure is released.
Take off the cap and set it in the recess 
on the fuel filler flap.
To prevent fuel vapors from escaping 
into open air, fully insert filler nozzle 
unit.
Only fill your tank until the filler nozzle 
unit cuts out – do not top up or over-
fill.
Warning!
G
Gasoline and diesel fuel are highly flamma-
ble and poisonous. They burn violently and 
can cause serious injury. Whenever you are 
around gasoline or diesel fuel, avoid inhaling 
fumes and skin contact, extinguish all smok-
ing materials. Never allow sparks, flame or 
smoking materials near gasoline or diesel 
fuel!
!Diesel engine:
When filling the diesel fuel tank using 
fuel containers, place a filling filter, a 
suede cloth or a clean flannel cloth into 
the filler neck to filter the diesel fuel. 
Otherwise, you could clog the fuel 
lines.
 
     
        
        Page 463 of 506
461 Technical data
Fuels, coolants, lubricants etc.
Fuels, coolants, lubricants etc.
CapacitiesVehicle components and their respective 
lubricants must match. Therefore only use 
products tested and approved by 
Mercedes-Benz.Please refer to the Factory Approved Ser-
vice Products Pamphlet, or inquire at your 
authorized Mercedes-Benz Center.
Model
Capacity
Fuels, coolants, lubricants etc.
Engine with oil filter
E 320
E 320 4MATIC
8.5 US qt (8.0 l)
Approved engine oils
E 500
E 500 4MATIC
8.0 US qt (7.5 l)
E55AMG
9.0 US qt (8.5 l)
E 320 CDI
6.87 US qt (6.5 l)
Automatic transmission
8.0 US qt (7.5 l)
MB Automatic Transmission Fluid
Front axle
E 320 4MATIC
E 500 4MATIC
0.63 US qt (0.6 l)
Hypoid gear oil SAE 85 W 90
Rear axle
E 320
E 320 4MATIC
1.06 US qt (1.0 l)
Hypoid gear oil SAE 85 W 90
E 320 CDI
E 500
E 500 4MATIC
E55AMG
1.37 US qt (1.3 l)
Transfer case
E 320 4MATIC
E 500 4MATIC
0.62 US qt (0.585 l)
MB Transfer Case Fluid 
     
        
        Page 466 of 506

464 Technical dataFuels, coolants, lubricants etc.Engine oils
Engine oils are specifically tested for their 
suitability in our engines and durability for 
our service intervals. Therefore, only use 
approved engine oils and oil filters re-
quired for vehicles with Maintenance Sys-
tem (U.S. vehicles) or FSS PLUS (Canada 
vehicles). For a listing of approved engine 
oils and oil filters, refer to the Factory Ap-
proved Service Products pamphlet, or con-
tact an authorized Mercedes-Benz Center.
Using engine oils and oil filters of specifica-
tion other than those expressly required 
for the Maintenance System (U.S. vehi-
cles) or FSS PLUS (Canada vehicles), or 
changing of oil and oil filter at change inter-
vals longer than those called for by the 
Maintenance System (U.S. vehicles) or 
FSS PLUS (Canada vehicles) will result in 
engine damage not covered by the 
Mercedes-Benz Limited Warranty.Please follow Maintenance System (U.S. 
vehicles) or FSS PLUS (Canada vehicles) 
recommendations for scheduled oil 
changes. Failure to do so could result in 
engine damage not covered by the 
Mercedes-Benz Limited Warranty.
Engine oil additives
Do not blend oil additives with engine oil. 
They may damage the engine. 
Damage or malfunctions resulting from 
blending oil additives are not covered by 
the Mercedes-Benz Limited Warranty.Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG 
lubricating oil are used in the air condition-
ing system.
Never use R-12 (CFC) or mineral-based lu-
bricating oil. Otherwise damage to the 
system will occur.
Brake fluid
During vehicle operation, the boiling point 
of the brake fluid is continuously reduced 
through the absorption of moisture from 
the atmosphere. Under extremely strenu-
ous operating conditions, this moisture 
content can lead to the formation of bub-
bles in the system, thus reducing the sys-
tem’s efficiency.Therefore, the brake fluid 
must be replaced every two years, prefera-
bly in the spring.Only brake fluid approved 
by Mercedes-Benz is recommended. Your 
authorized Mercedes-Benz Center will pro-
vide you with additional information.