The following fault codes are saved in the engine control unit:
- P0087/135, indicative of
fuel system pressure; pressure too low.
- P0093/147, indicative of
fuel system; major leakage determined.
In this case, the fuel filter may be clogged.
The cause may be the formation of a muddy mass due to the use of fuel additive Eolys 176 (specified by the vehicle manufacturer).
The fuel filter must be replaced to resolve the problem.
The vehicle manufacturer has stopped using additive Eolys 176. In its place (particle filter generation 1 and 2), the new additive Infineum (particle filter generation 3) is used exclusively.
For the engines listed above, the maintenance intervals for the fuel filter have subsequently been reduced from 60,000 km to 30,000 or 20,000 km. Specialist garages have been informed and will test affected vehicles as required.
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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