Howdy!

We have a Fischer-Price Code 'n Learn Kinderbot in our collection that is easily one of the most used of our kids' STEM kits. We recently noticed the left wheel is not turning anymore, so it just turns in circles to the right. I tried looking online to see if it can be repaired easily and even started to try to take the robot apart to get to the wheels but I don't have a long and narrow enough screwdriver to unscrew all the screws. 

TL;DR: Does anyone have a Kinderbot in their collection and experience with this? Is there any way to fix it? 

Many thanks in advance for you input!