Component description for the activated charcoal canister - GF47.30-P-2010AMG

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MODEL 164, 251 with ENGINE 156.980

MODEL 209 with ENGINE 156.982

MODEL 211, 219 with ENGINE 156.983

MODEL 216, 221 with ENGINE 156.984

Location (shown on model 211)

The activated charcoal canister is located at the rear in the rear right wheelhouse.

Fig 1: Identifying Activated Charcoal Canister - Location On Model 211

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Task

Temporary storage of fuel vapors for subsequent regeneration
Ventilation and purging of fuel tank

Design

The activated charcoal canister consists of a plastic housing filled with activated charcoal granulates.

The activated charcoal canister is divided into various chambers by partitions to achieve an optimal flow of the activated charcoal granulates.

For

The activated charcoal canister is larger (contents approx. 3.5 liter, usually approx. 1.5 liter), filled with a different activated charcoal and equipped with the activated charcoal canister shutoff valve.Y58/4

Function

Fuel vapors released from the fuel tanks are combined with the activated charcoal granulate.

For

During refueling the fuel vapors are also collected from the fuel tank and passed on to the activated charcoal filter (ORVR = Onboard Refueling Vapor Recovery).

Ventilation of the fuel tank (under vacuum) and de-ventilation of the fuel tank (at excess pressure) take place through the activated charcoal canister

When regeneration is activated, the fuel vapors are drawn in by the engine and combusted.

The activated charcoal granulates are completely regenerated in the ideal case.