There may be a mechanical fault in the EGR valve
if error code P1405 is read out with the above vehicle symptoms.
In this case, remove and check the EGR valve. If the pintle valve is found to be jammed, the following repair options may be applied. The following work can be carried out as an alternative to replacing the valve.
No EGR valves have been installed in the production factory by the vehicle manufacturer above engine number 11444562 (02/2006->).
For this reason, a cover plate (OE No.: 55562899) is installed instead of the EGR valve. The engine control unit must then be reprogrammed or “EGR valve function” must be deactivated.
The control unit software can only be updated by an authorised dealer.
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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