Whatever information is stored in memory using the battery will be lost. Other than that there should be no danger.
None, other than the battery will loose some charge unless you connect it to a battery tender.
The quickest fix for electronic items is rebooting which is accomplished by turning them off and on again. The Renault Megane Scenic can be rebooted by disconnecting and reconnecting the battery. A mechanic will typically do this at no charge.
with a scan tool or by disconnecting the battery.with a scan tool or by disconnecting the battery.
With a scan tool, or by disconnecting the battery for 10 minutesWith a scan tool, or by disconnecting the battery for 10 minutes
Yes, with an OBD II reader. Disconnecting the battery won't reset it.
By disconnecting the battery.
Yep
Yes, and disconnecting the battery while the engine is running can severely damage the computers
In the engine compartment , on the drivers side , by the brake fluid reservoir ( Ford recommends disconnecting your battery cables before servicing anything in the PD BOX , although some people have problems BESIDES resetting the preset radio stations and relearning the idle after disconnecting the battery cables )
Disconnect the negative cable first when disconnecting a car battery
No it will not restart
Disconnect the negative cable first when disconnecting a car battery