BMW 120d - Exhaust gas recirculation (EGR) | HELLA

BMW

120d (E81)

Model year: 2007 - 2011

Engine: N47 D20

Exhaust gas recirculation (EGR)

Engine control light is on

Vehicle has power loss

Error code:

4507, EGR air mass is too low

4501, EGR air mass is too high

4CAE, power loss

If one or more of the above problems are identified on this vehicle model, this may be associated with a bad control of the exhaust gas recirculation valve due to a broken wire of the engine wiring harness. In this case, the wiring harness and the 3-pin connector at the EGR valve should be checked, repaired or replaced.

Please note, in this context, the installation/removal information and the testing instructions of the vehicle manufacturer.

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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