If a malfunction or intermittent failure of the instrument display (which remains until the next ignition cycle) while driving is complained at for these vehicles, a possible source of fault is the earth connection.
Check the chassis earth point in the engine room (see photo). Check here that the cap nut is tightened and the cable connections are corrosion-free and tight.
If the earth cable connections are loose, install an additional spring washer/circlip to secure the attachment of the earth connection.
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 qualified personnel only.
Reprinting, distribution, reproduction, exploitation in any form or 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, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.
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