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Author archives: Hella

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    Air-Conditioning Service Compressor Replacement and Flushing The Air- Conditioning System

    The air conditioning compressor is driven by the vehicle engine via a ribbed or V-ribbed belt. It compresses and transports the refrigerant in the system.

    May
    23
    2018

    Lighting Diagnosis and Guided Troubleshooting

    Vision is the most important sense for people who wish to drive safely. However, this sense may be severely impaired in twilight and bad weather or if the window panes are dirty. This impairment means an increased risk of accidents but the increasing traffic density also increases the risk potential on the road.

    April
    30
    2018

    Technical Tips For The Lighting Professional

    If complaints are made about the above issue, this does not necessarily indicate the presence of a fault.

    March
    30
    2018

    Coding lighting functions

    For some years now, control units have been controlling, regulating and monitoring lighting functions.

    March
    5
    2018

    Removing and installing the front disc brakes

    For illustration purposes, a BMW 320i (E90) fitted with a Brake Caliper Type Teves FN is used in the following service note as an example, but this can also apply to other vehicle models equipped with brake calipers of the same type.

    February
    5
    2018

    Light source replacement does not have to be difficult – Part 1

    This handbook includes vehicles where light source replacement requires more than a little work. Thanks to comprehensive explanations and detailed photos, this handbook helps make light source replacement simpler and more efficient.

    January
    15
    2018

    Pre-bleeding the hydraulic brake system

    If you have vehicles in your workshop with EDS, EDS/ASR or EDS/ASR/ESP where a chamber in the brake fluid reservoir is completely empty, or if you need to undertake special bleeding because leaks have been found, this clip is ideal for you.

    December
    4
    2017

    Measuring the difference in thickness on the friction ring of a brake disc

    If you feel rubbing when braking, troubleshooting should include measuring the difference in thickness on the friction ring of a brake disc.

    December
    1
    2017

    Checking the concentricity of the wheel hub

    This video clip covers wheel hub concentricity, often referred to as hub runout.

    November
    20
    2017

    Checking the concentricity of the brake disc

    Checking the concentricity of the brake disc is an important process that should be undertaken after a new brake disc is installed.

    November
    3
    2017