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...Fault diagnosis Cooling performance check Every workshop needs, besides special tools, technical knowledge to do a professional job. This can be purchased by special training. This applies particularly to air -conditioning systems. The followin g instructions can merely serve a...

...Technical Information Crimping tool There is a new crimping tool in the Behr Hella Service range which meets the requirements of new standards and requirements for setting up connections. Tests have shown that the old barb design in combination with worm drive clamps or iron rings an...

...Technical Information The electronically controlled Visco® fan clutch Reason for the development The type of cooling fan drive mainly used in the commercial vehicles sector with a Visco® clutch, as described in the TI “Visco® fan” has been extended by an electronic cont...

...Technical Information Filter/Dryer General points The filter/dryer is used with systems with expansion valve. It is located in the high-pressure line between the condenser and the expansion valve. The task of the filter-dryer is to remove impurities from the refrigerant and dehumidify...

...Technical Information Radiator installation note This TI relates to radiators which are fitted to vehicles of the series BMW E30, E36, E34 and E39 After the radiator has been replaced, the cooling system is filled with coolant mixture via the integrated expansion tank according to...

...Technical Information Electronically controlled cooling Reason for the development Perfect engine function also influences the engine' s performance. In the case of thermostat-controlled cooling, coolant temperatures vary from 95°C to 110°C in the part-load range and from 85°C...

...Technical Information Evaporator General points The evaporator is used for heat exchange between the surrounding air and the refrigerant in the air conditioning system. How it works The refrigerant, which is under high pressure, is injected into the evaporator via the expansion o...

...Technical Information Expansion tank General points The expansion tank in the cooling system is usually made of plastic and is used to trap the expanding coolant. It is normally installed in such a way that it represents the highest point in the cooling system. It is transparent to all...

...Condenser fans General To guarantee correct liquefaction of the coolant in the condenser or sufficient engine cooling, an additional or more powerful condenser f an is usually installed in vehicles with air-conditioning systems. Existing fans may also be replaced by more powerful o...

...Technical Information Fittings General points Fittings are available in different versions. It must be noted that connection muffs for flexible refrigerant pipelines have certain structural features at one end. • A cylindrical straight connection pipe, the outer diameter of which m...



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