Vehicle fuel system Mercedes A-Class (W168)

General description of the fuel system
The fuel system includes the fuel tank, fuel pump, fuel lines, and fuel and air filters. The fuel tank with a capacity of about 54 liters is located on the bottom in...

Fuel System — Pressure Relief
Cars with gasoline engines. The fuel system pressure remains even after the engine is turned off. Before opening the fuel system, the pressure must be released. Warning!...

Fuel pump and fuel gauge sensor
Gasoline-powered vehicles. The electric fuel pump and fuel gauge sensor are located in the fuel tank. To remove them, the fuel tank must be removed. Diesel-powered...

Fuel injection pump — removal and installation
Cars with diesel engines. The fuel supply pump is mounted on the front end of the cylinder head cover and is driven by the camshaft. Removal 1. Disconnect the fuel...

Fuel Shut-Off Solenoid Valve — Removal and Installation
Cars with diesel engines. The fuel shut-off solenoid valve is located above the fuel supply pump on a bracket that is attached to the cylinder head cover. Removal...

Air filter — removal and installation
Cars with gasoline engines. Attention! For diesel engines, the air filter is removed together with the intake module, see the relevant chapter . 1. Disconnect the air...

Accelerator pedal stop — adjustment
Note: There is no need to adjust the idle speed because it is adjusted automatically as soon as the pedal lever reaches the idle stop on the pedal position sensor. 1....

Intake manifold — removal and installation
Cars with gasoline engines. Removal 1. Remove the air filter, see the relevant chapter . 2. Unscrew the bolts securing the oil dipstick guide tube. 3. Disconnect the...

Intake Manifold Module — Removal and Installation
Cars with diesel engines. Removal 1. Disconnect the air intake hose 1 (see illustration). 2. Remove mixer 2 by disconnecting low pressure hose 3 from the EGR valve,...

Crankshaft Position Sensor — Removal and Installation
The crankshaft position sensor is screwed into the cylinder block near the flywheel. Removal 1. Disconnect plug 1 and unscrew the mounting bolts of crankshaft position...

Camshaft Position Sensor — Removal and Installation
In vehicles with a gasoline engine, the camshaft position sensor is located on the front end of the cylinder head cover near the camshaft drive sprocket. Removal 1....