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...Technical Information Thermal shock Definition of term The term thermal shock is used to describe the fast, sudden change of temperature in a material. This leads to tension both on the part surface and over the cross-section, particularly where glass suddenly changes from hot to cold...

...Technical Information Troubleshooting Hella Dyna Beam bend lighting Troubleshooting In the case of Dyna Beam bend lighting headlight se ts (Golf V, Astra H, Ford Focus I), a control lamp is used which indicates possible malfunction of the system to the driver. After switchi...

...Xenon ballast 1-1 Technical Information Xenon ballast 5DV 007 760 -651 General This ballast is available as a spare part for different vehicles (an exact vehicle identification can be found in our Hella lighting cataloque). This allows you to buy this spare part from the...

...Xenon-Lamps If a gas is used instead of a tungsten wire, as in a normal bulb, through which the current flows, we are talking about a gas discharge lamp. This type of lamp is filled with gas and metal dust. The mixture, when electrical current flows through the lamp, illuminat...

...\ Transformer 1-1 Technical Information Transformer Safety note for Xenon transformer 3. generation Incorrect handling of Xenon Headlamps with 3 rd generation electronics can lead to a voltage spike or even electric shock . When the transformer (12 or 2 4V) is switc...

...Expansion valve General points The expansion valve is the point of separation between high pressure and low-pressure areas in the cooling cycle. It is mounted upstream from the evaporator. In order to achieve optimum cooling capacity in the evaporator, the flow of refrigerant is regulate...

...Q1 / 2014 Alfa Romeo Type 147 All models Noises coming from the rear wheel brake One-sided wear Poor functioning of the handbrake If the above-mentioned problems are detected, a possible cause could be a handbrake cable that is stiff or one that has become stuck. As a result of a def...

...BMW 7 Series E 65/66 All models Model year 2001–2008 Front and rear axle brake system squeals when applying light braking force If the above fault occurs, it may be associated with the brake lining wear indicator. When applying light braking force, the thermal contact on the brake...

...2015 Repair note disk brake BMW / MINI All models Notes on the replacement of brake pads and brake discs In order to be able to carry out a professional and correct service within the scope of the repair to the brake disc system, the following procedures are specified by the vehicle...

...Ford All models with rear axle disc brake system Maintenance information on brake piston reset Proceed with caution when carrying out a brake piston reset (e.g. when changing the pads) on the rear axle disc brake system of Ford vehicles. The pistons for brake callipers known to b...



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