In this database, you will find technical information on our products and certain vehicle systems – compiled by experienced technicians and mechanics. You can search the database by entering multiple keywords, for instance the product, relevant system or components, and also filter the information using the categories (for example, lighting, electronics, etc.).
"Coated brake disc | HELLA HELLA “PRO” General information In addition to conventional brake discs, HELLA also has on offer the PRO coated brake disc. With these 100% coated brake discs, HELLA is following the constantly growing demand of the automotive mar"
"Testing the minimum thickness of a brake disc | HELLA General information The manufacturer's specification of the minimum thickness defines the wear limit of a brake disc. This value in millimetres has been stamped on the outer edge or on the brake disc ch"
"Intake manifold pressure sensor with integrated intake air temperature sensor | HELLA General The intake manifold pressure sensor measures the intake manifold vacuum that exists in the intake manifold after the throttle. The measured values of the intake m"
"Electrical exhaust gas recirculation valve | HELLA 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 re"
"The range extender | HELLA General information The range extender (Figure 1) is used, in many applications, including in electric vehicles (e.g. Opel Ampera, Chevrolet Volt, BMW i3). It is an additional unit that extends the range of the electric vehicle. "
"The Diesel Particulate Filter System DPF | HELLA General information In order to maintain the prescribed emission limit values, a diesel particulate filter that is also known as DPF is used in vehicles with diesel engines. The diesel particulate filter com"
"The Secondary Air System | HELLA General Information This system further lowers the HC (hydrocarbon) and CO (carbon monoxide) values during the cold start phase (catalytic converter not yet active). A conversion rate of over 90 percent is achieved using a "
"Maintenance information for brake caliper - Pushing the brake pistons back | HELLA Maintenance information for brake caliper Pushing the brake pistons back General information In order to perform repairs on a brake system properly, the mechanic requires th"
"Ultrasonic oil level sensor | HELLA General This sensor is used to monitor the oil level by continuously measuring the engine oil level in the static and dynamic ranges. The sensor is designed for vertical installation from below in the bottom of the oil p"
"Important safety note Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for use by suitably qual"