If problems are encountered with the function of the stop lights or/and tail lights in the above vehicles, particular attention should be paid to the bulbs and their holders. It may occur that the bulb failure check indicator light does not go off even after the defective light source has been replaced. In such a case, check the contacts of the bulb holder for corrosion, adequate pre-tension and contacting.
If this does not fix the problem, all the 6 bulbs of the tail and stop lights should be replaced:
2x bulbs of the stop lights 12V/21W
2x bulbs of the fog and tail lights 12V 21/4W
2x bulbs of the tail lamps 12V/5W
Make sure that the bulbs are from the same manufacturer or have the same resistance value. The bulb failure check is very sensitive to voltage drop and different resistance values of the light sources.
Important safety notice
The following technical information and tips for practical use have been set up by HELLA in order to offer professional support to automotive workshops in their daily work. The information available here on this website is only to be used by appropriately trained specialist staff.
The reprinting, distribution, reproduction, exploitation in any form and disclosure of the contents of this document, even in part, is prohibited without our express written approval and indication of the source. The schematic illustrations, figures and descriptions are for explanation and presentation of the document text and cannot be used as a basis for installation or design. All rights reserved.
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