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...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...

...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 Throttle-valve housings General points Throttle valves are installed between induction bridge and load sensor. Throttle valves control the air flow suctioned in by the engine. The mixing ratio of fuel and air is changed by the throttle valve's opening angle. T...

...Technical Information Exhaust gas recirculation system(EGR) General To achieve exhaust emission reductions, some vehicles, are fitted with an exhaust gas recirculation system. This system is controlled by the ECU and the EGR valve. Function Due to the recirculation of a part of...

...Electrical exhaust gas recirculation valve Failure causes and troubleshooting General information EGR valves are installed in a bypass channel between the intake manifold and the exhaust manifold. Recirculating part of the exhaust gas volume can reduce emissions of nitrogen oxides (N...

...Technical Information Fault code given as hexadecimal number Conversion of hexadecimal numbers to decimal numbers In the world of programming and computer technology, so-called hexadecimal numbers are used as well as binary number codes (comprising 0 and 1). The hexadecimal system do...

...Technical Information External alternator control units As vehicle electric systems become more and more complex, simple alternator regulation is usually no longer sufficient. For this reason, some vehicle manufacturers (e.g. Ford, BMW, Mazda, Peugeot) have integrated so-called intell...

...Technical Information Housing for rear view camera systems General notes Some time ago, Hella launched two rear view camera systems. The desire was however expressed for the possibility of integration into a lighting function or a housing. In order to offer customers better int...

...Technical Information Lambda sensor General Due to the increasing strictness of exhaust emission regulations, the vehicle manufacturers are committed to reducing their vehicle emissions. For this reason a 3-way catalytic converter is fitted to nearly all vehicles. To achieve a good conv...

...Technical Information Zirconium dioxide lambda sensor (spring sensor) Manufacturer-specific cable colours The following different cable colours may be used f or the above-mentioned lambda sensors: Manufacturer Hella Bosch Delphi Denso Toyota Signal cable black black pu...



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