Hi,  My octy's keyless entry remote was defective. Also my door LED was not blinking. So last week I decided to buy a new remote. With the new one, I found out that the driver side lock is not actuating with remote. It was opening by the mechanical key only. So I decided to check the lock.  For that you need to remove the door card and remove the lock. Bowders1 already made a great guide for these. So try this link. http://www.briskoda.net/forums/topic/126257-octavia-1-replacing-door-latch-m