Voted Best Answer
Oct 22, 2018 - 09:23 AM
#1 Programming BMW modules through the Elite is only possible with an active subscription. It could still be done using the J2534 pass through and a laptop if you puchase a BMW OSS J2534 subscription.
#2 Mercedes SCN coding also requires an active subscription.
It is recommended that you perform an backup of the tool before the subscription expires so you have a method of recovery that does not require purchasing another subscription, in the event of data corruption.
Also keep in mind that the renewing an update subscription also renews the tools warranty.