Here is the tutorial on Peugeot 508 2013 odometer correction provided by obdii365.com engineer. Remove dash and adjust mileage are easy jobs, the most difficult part is to disassemble BSI.
First we dismantle the dashboard
Then remove BSI box
Here’s the dashboard
We use YanHua Digimaster 3 odometer correction master to correct the mileage.
Be careful!!! It is very difficult to take apart BSI
Find out the 95256 chip on the left up corner. Read it and adjust odometer with digimaster III.