Introduction Of The New E-Class Coupé, Model Series 207 B - Mercedes-Benz E-Class Series 207 Service Manual

Fuel system
Fuel tank
The fuel tank is located in front of the rear axle
under the rear bench seat in order to provide the
largest possible opening between the trunk and the
passenger compartment when the rear seat back-
rest is folded down. It is made of high-density poly-
ethylene (HDPE). The complex shape of the thermo-
plastic fuel tank has a multiple-layer wall construc-
tion of six layers with a block layer to prevent hydro-
carbon penetration. Its capacity is 66 liters,
including 8 liters reserve.
Fuel tank - M 272
1 Tank cap
2 Filler neck
3 Breather line
4 Feed line
5 Purge line
6 Suction jet pump
7 Tank limiting and vent valve
8 Activated charcoal filter
B4/1 Fuel level indicator sensor, left
B4/2 Fuel level indicator sensor, right
M3 Fuel pump
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Introduction of the New E-Class Coupé, Model Series 207
b
– This printout will not be recorded by the update service. Status: 01 / 2009 –
In all models, two service holes on the top of the
tank facilitate removal of the pump and the filter
unit with pressure sensor. The expansion volume is
inside the fuel tank. In all versions the fuel tank fill
level is measured by a dedicated float-and-lever
sensor in each chamber. Each float-and-lever
sensor has its own electrical connector plug.
The fuel filler flap is located in the usual place in the
rear fender on the right-hand side below the C pillar.
The filler neck is welded directly onto the fuel tank.
It opens into the right-hand chamber of the fuel
tank, which is filled first. The tank cap is tied to the
fuel filler flap with a retaining strap so that it will not
be forgotten after refueling.
P47.10-2496-00