mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Fuel Delivery and Air Induction > < Fuel Tank Pressure Sensor, Location/Task/Function|Page 3996
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Leak Detection Sensor: Description and Operation

Model 129

Model 202

 
Position

At wheelhouse/engine

Task

Detecting pressure pattern in the line between activated charcoal filter and purge control valve. If leak exists in fuel system, pressure in line varies
in accordance with the pulsed actuation of the purge control valves

Design/function

Identical to pressure sensor (B28)

Fuel Delivery and Air Induction > < Fuel Tank Pressure Sensor, Location/Task/Function|Page 3996