HELLA TECH WORLD NEWS

With the above-mentioned vehicle type, the signal horn may be temporarily or permanently out of action. Operating the signal horn sometimes only works on one side and not via all four possible push buttons on the steering wheel.

When starting the engine on the vehicles mentioned above, noise may be caused by the starter running with the engine. There is a risk of destroying the starter.

The secondary air system reduces harmful exhaust constituents during the cold start phase. On this page, you can find out precisely how this works. Here you can also read how malfunctions in the secondary air system become noticeable and how they can be precisely located during troubleshooting.

In the vehicles mentioned above with air conditioning, the air flow from the air outlet nozzles may be impaired. Possibly the air flow to the footwell is permanently present and/or the air flow at the dashboard nozzles is insufficient.

If the error message "System check required" is displayed in the instrument cluster on the above-mentioned vehicle models and at the same time the error code P06DE is read out, this could be caused by a defect in the injector seals. As a result of thermal loads, the injectors can loosen over time, a situation which leads to a reduction in the sealing pressure.

If the fuel filler flap in the above-mentioned vehicles does not open or only opens sporadically, there are various potential causes.

Wheel speed sensors record the rotation of the wheels. This information is used by numerous safety and assistance systems as the most important control parameter. Among other things, this page explains the differences between active and passive wheel speed sensors as well as their functional principle. Workshop professionals will also find highly detailed step-by-step instructions along with a wealth of practical tips for troubleshooting and replacing wheel speed sensors.

If it is necessary to replace the differential pressure sensor on the above-mentioned vehicle, it is advantageous to be fully aware of the installation position.

Renewing the starter is quite challenging at first because of its limited accessibility. Proceed as follows to remove starter:

• Remove ground connection of the battery (note the radio code if necessary)
• Raise vehicle on a lifting platform

Replacing the cabin filter is a little complex. It is located in the left-hand area of the passenger footwell. In order to access it, the glove compartment has to be removed.

The bend lighting extends the visual range on curved roads or when cornering. The course of the road and obstacles can be identified earlier and more easily in darkness. In addition to background information on how the bend lighting works, on this page you can find out about the differences between dynamic and static bend lighting. We also provide practical tips for checking this light function.

In the vehicles mentioned above with manual air conditioning, the interior blower may only operate at the highest level (maximum fan speed). This is usually an indication that the blower regulator (resistor) is defective.