How to Repair a Faulty Polo Trunk Lock?

[VonCalvin]

Here are the methods to deal with a faulty Polo trunk lock: 1. Linkage rod or lock cylinder issue. Spray rust remover into the lock cylinder a few times to open it. 2. The car key battery is dead and needs to be replaced. Below are the specific steps to replace the battery: (1) Locate the switch on the back of the car key, pull the top part outward, and after removing the internal metal mechanical key, you will see a small groove. (2) Use a flathead screwdriver or another tool to pry open the car key cover along the groove. Once a gap appears, you can manually open it. (3) After opening the car key cover, remove the old battery and replace it with a new one, paying attention to the battery's polarity. (4) Reattach the key cover and reinsert the mechanical key. Below is additional information on emergency trunk opening methods: 1. Most car models have a small slot inside the trunk. Use a key or another sharp object to pry open the outer cover. 2. Once the cover is pried open, you can see the rear trunk locking mechanism inside. Simply pull it slightly by hand to open the trunk door.