Audi A1 - Engine warning light comes on | HELLA
Audi
A1 (8X)
Model year: from 2010 onwards
Engine: 1.6 TDI
Exhaust gas recirculation radiator
Engine warning light comes on
If, in the vehicles mentioned above, the error memory indicates an issue with the exhaust gas recirculation, this may be due to a faulty exhaust gas recirculation radiator.
The exhaust gas recirculation radiator unit (EGR radiator) is fitted with a vacuum cell and an electric actuator motor (Figure 1). The EGR radiator should be examined according to the following criteria:
· Internal coking
· Functionality of vacuum cell
· Functionality and control of electric actuator motor
· External and internal leaks
Furthermore, the mechanics of the actuator motor (Figure 2) and the vacuum cell must be checked to ensure that they run smoothly. They may often jam or fail to run smoothly, leading to faults.
Figure 1
Figure 2
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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