HELLA TECH WORLD NEWS

Overview of driver assistance systems

This is where you can find useful information on driver assistance systems - in glossary format

Although driver assistance systems are available in the most diverse forms and functional depths, they all have two things in common: They make driving a car safer and more comfortable. The following overview, appearing in alphabetical order, lists the most common driver assistance systems including short descriptions for each one.

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Actuators

Checking, replacing and training

A step-by-step explanation on the diagnosis of a faulty actuator including instructions on how to replace it and also how to train the new actuator. In the video we show you all the individual steps right up to the final functional test.

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Jeep Compass - Daytime running light dims on the wrong side

Jeep Compass

Daytime running light dims on the wrong side

When the direction indicator is activated on the vehicles mentioned above, customers have complained that the daytime running light dims or switches off on the opposite side.

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Opel Zafira B - Steering angle sensor cannot be calibrated

Opel Zafira B

Steering angle sensor cannot be calibrated

If the steering angle sensor cannot be calibrated with the diagnostics device in the above vehicle, the following procedure may be successful. 

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Intake manifold pressure sensor

Intake manifold pressure sensor

With integrated intake air temperature sensor

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 manifold pressure sensor and the intake air temperature sensor are required to calculate the intake air mass. 

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Peugeot 307 HDI

Poor acceleration performance; Noise in the vicinity of the splash wall

If the vehicle listed above demonstrates poor acceleration performance in conjunction with flapping noises in the vicinity of the splash wall, this may be caused by a defective intake manifold.

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BMW 3 series; Z4; X3

Engine control light is on; Vehicle starts up poorly

If one or more of the above-mentioned defects are reported for these vehicle models in conjunction with various error codes regarding the adjustable camshaft (VANOS), this may be due to a sticking or stiff magnetic valve of the VANOS system.

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Maintenance information for brake caliper

Pushing the brake pistons back

In order to perform repairs on a brake system properly, the mechanic requires the correct tool. Before new brake pads are installed, the brake pistons in the brake caliper must be pushed back.

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ABS sensor

ABS sensor and wheel speed sensor in vehicles

Among other things, this page explains the differences between active and passive wheel speed sensors as well as their functional principle.

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EGR radiators

Diagnosis information regarding faulty EGR radiators

If the coolant is leaking, the cause could be a defective EGR radiator. This video explains and demonstrates how the functioning of the EGR radiator can be checked.

MINI R50/52/53

Loss of coolant

When coolant loss occurs in the above vehicles, a defective coolant hose in the area of the alternator might be the cause.

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IGNITION COILS

Basic information and important tips relating to ignition coils in vehicles

On this page you can find out how ignition coils work and which designs are used in the latest generation of vehicles, for example. You will also find a wealth of practical tips for diagnostics and checks on ignition coils.

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TWO-PIECE BRAKE DISCS IN CARS

Know-how and useful tips surrounding the topic of two-piece brake discs in cars

Ever since the disc brake system was introduced to cars, the brake disc has been a significant structural component in automotive manufacturing.

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VOLKSWAGEN GOLF 4

Air-conditioning system not working

Should the air-conditioning system and/or compressor not function properly in the above vehicles, a defect/fault in the area of the outside temperature sensor might be the cause.

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NEW ON THE MARKET

Brake calipers without core charge processing

The brake caliper portfolio from brake specialists Hella Pagid have been proven in use and established on the market for a long time. The product range is now being expanded by 112 new brake calipers for the independent aftermarket. The special feature: The new products are handled completely without core charge processing.

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VOLVO V70

Loss of power / Whistling noises / Engine warning light illuminates

Should a loss of power occur in the above vehicles, an insufficiently fastened hose on the intercooler might be the cause.

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MINI R50/52/53

Intermittent failure of air-conditioning system

The air-conditioning / heater system control units may occasionally fail in the above vehicles. Inadequate ground connection can be the possible cause here.

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RELAYS AND RELAY DEVICES

Products and applications

Relays have been used to remotely control circuits for over 180 years. The technology has proven its reliability millions of times and is today still the first choice for many applications, such as in automotive engineering.

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ART OF SIGHT

HELLA teaches vehicles “to see”

Our latest generation of radar sensors will play a key role in automated driving scenarios in the future. Radar sensors capture the environment of vehicles and thus act as sensory organs independently of weather and lighting conditions.

ADAPTIVE CRUISE CONTROL - ADJUSTING ACC SENSOR

Adaptive Cruise Control (ACC) and the calibration of ACC radar sensors

The increasing use of modern driver assistance systems continually changes the challenges faced by independent workshops.

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RENAULT MEGANE 2

Defective pressure sensor

In above vehicles, a defective pressure sensor can lead to operating issues. The respective voltage supplies of pressure sensor (image) in air-conditioning system and accelerator pedal sensor are connected.

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STRONG PRICE INCREASE FOR REFRIGERANT R134A

Significant implications for workshops and drivers

EU Regulation 517/2014, effective since January 1 , 2015, was the trigger for price increases of several 100% currently taking place for refrigerants with high GWP value (Global Warming Potential).

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NISSAN X-TRAIL

Interior blower not working

Should the interior blower fail partially or completely in above vehicle, a defective electric blower controller might be the cause.

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VOLVO S40/S50

Temperature control of air-conditioning system

In the above vehicles, corrosion on a connector and/or a damaged wiring harness can adversely affect the control of the air-conditioning system.

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Specific vehicle repair information

REPAIR INFORMATION

Vehicle-specific diagnostic and repair information relating to a variety of fault symptoms.

To the repair instructions
HELLA online training

HELLA ONLINE TRAINING

Take advantage of the HELLA online training to refresh and expand your knowledge. Learn about the HELLA core competency areas at your own pace.

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Campaigns and special offers

CAMPAIGNS AND SPECIAL OFFERS

Here you will find an overview of the current campaigns and special offers from HELLA.

To the campaigns
Online product catalogue

ONLINE PRODUCT CATALOGUE

Quick, clear and efficient – Find the right HELLA Product!

To the online catalogue
New products

NEW PRODUCTS

Here you can find all information about new products, product ranges and extensions from HELLA.