How to remove and refit the ECU (ECM) module on a 2002 to 2009 VW Polo Mk4 (9N) with the 4-cylinder 1.4 litre petrol engine. This video only demonstrates how to physically remove and refit the unit. If a new ECU is being fitted, it will need to be reprogrammed. This can only be performed using dedicated test equipment. You will need to have this carried out by a Volkswagen dealer or suitably-equipped specialist. Thanks for watching. Please comment, like and subscribe !.

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