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...Technical Information Troubleshooting Earth (31) – often ignored Loose or oxidised earth connections lead to malfunctions on electric and electronic components again and again. Particularly affected are the areas outside the vehicle interior such as: alternator, starter, batter...

...Technical Information Evaporation loss - and re - circulation system / absorption canister General In a parked vehicle, fuel evaporates via the tank vent line into the environment. To avoid this pollution, vehicles with a controlled fuel mixture system, have an evaporation lo...

...Technical Information Accelerator pedal position sensor General On modern vehicles the percentage of electronic components is increasing. Reasons for this, are among others, the legal regulations, e.g. emissions and fuel consumption reduction, the increase of active and passive safet...

...Technical Information Air Flow Sensor (MAF) General The air flow sensor records the incoming air flow. It is constructed of a duct style housing with a flow rectifier, sensor protection and a sensor module. The air flow sensor is fitted into the inlet pipe between the air filte...

...Technical Information Delivery quality of optical bodies for light control units and rain/light sensors In some optical bodies for the light control unit and the rain/light sensors, there may be air bubbles in the adhesive pad. This applies to the following variants: Th...

...Technical Information Camshaft sensor General Camshaft sensors have the function, in coordination with the crankshaft sensor, to define N o 1 cylinder compression/firing stroke. This information is needed for a) commencement of injection on sequential injections system, b) th...

...History of the CAN data bus 1983 Start of CAN development. 1985 Start of co-operation with Intel for chip development. 1988 The first CAN series type is available from Intel. Mercedes Benz begins CAN development in the automotive field. 1991 First use of CAN in a standard vehicl...

...Technical Information Coolant level sensor General Coolant level sensors are fitted into the expansion tank. It checks the minimum level in the tank to prevent an overheated engine through water shortage. Function The coolant level sensor is a magnet which is...

...Technical Information Coolant temperature sensor General The coolant temperature sensor provides information for air/fuel mixture preparation by recording the operating temperature of the engine. The ECU adapts the injection time and the ignition angle to the operating conditi...

...Technical Information Crankshaft Sensor General Crankshaft sensors record the engine speed and crankshaft position. The fitting position is near the flywheel ring gear. More they are found on the engine block with the sensor ring bolted onto the crankshaft There are two differen...



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