Ive an 04 a3-2.0 with a bkd engine, I have a problem with the cluster where its not functioning properly after taking it out to fix the centre driver display, lights flashing and car starts and cuts out after a second, this is immobiliser related I know, the cluster is done as it has def and all counters are zeroed, if im changing the cluster am I just as well changing the ecu and key chip to save having to code the replacement cluster they will be from the same yr, model, engine etc, thanks for any suggestions or directing me to links etc, its not my main car so im not in any mad rush to get it on the road again