2011 FABIA VRS 57,000 miles : I unfortunately went for a remap using a Pendle performance agent, all went well for a whole 18 miles and then I had the same problem as Darren with the gears jumping dangerously, lost reverse as well. They took the remap back to original spec but that didn't change anything. They took it to a local autospecialist who straight away new the fault, broken gear selector. New gear selector and clutch and 2nd hand speed sensor (they had lying around) was as £1800. The Pendle agents put the remap back on and and all seems good. The auto specialists said they see a large number of these gearboxes coming through their garage, common fault.