Can I replace new digital meter of BS6 in Access BS4?

Yes, the digital meter of Access BS6 can be assembled in Access BS4 as there is no change found in the digital meter of Access BS6 when compared with the Access BS4 apart from the Eco Assist illumination function which is added in BS6 variant. However, for the confirmation, we'd suggest you walk into the nearest authorized service centre as they will be the better person to assist you. You can click on the following link to see the details of the nearest service centre and selecting your city accordingly - Service centre