How to Replace the Key Battery for an Old Volkswagen Sagitar?

[ArthurDella]

Method for replacing the battery in an old Volkswagen Sagitar key: 1. Before replacing the battery, pull out the key; 2. Turn the car remote key to the back, where you will see the back cover divided into two parts. The side with the key ring has the battery underneath the back cover; 3. There is a gap on the side near the key ring. Push hard to open the tail cover; 4. Pry open the key case with your hands or a screwdriver along the center line; 5. On the back of the key, use a coin or a flat-head screwdriver to pry open the shell; 6. Forcefully separate the side, splitting this part of the key into front and back pieces, revealing the battery and circuit board sections; 7. Follow the reverse order of disassembly to place the battery into the car remote key.

[MichaelMarie]

A few days ago, when I drove my old Sagitar out, I found the key didn't respond when pressed, so I replaced the battery myself. First, find a coin or small card to pry open the gap in the key shell—usually on the sides or bottom—and gently separate it without applying too much force to avoid damaging the plastic. Take out the old battery (it should be a CR2032 coin cell), being careful not to damage the small internal components. When inserting the new battery, make sure the positive side faces up (the side with the plus sign), otherwise the key won't work after assembly. Before sealing the key shell, test the remote buttons—if they light up, you're good to go. I always grab spare batteries at the supermarket to avoid getting stranded. Remember to check the key's battery level regularly—this car's battery drains quickly over time, and a replacement usually lasts about a year. Don't underestimate this task—repairing a broken key is expensive, but replacing the battery yourself is easy, saves money, and gives peace of mind.

[SanJude]

Last year when I first drove my used Sagitar, the key suddenly failed, so I had to replace the battery myself. I searched online for a video first and found there was a seam in the middle of the key that needed to be slowly pried open with a flathead screwdriver. Inside was a thin CR2032 battery—after removing the old one, I installed the new battery into the slot (I initially put it in backward, causing the light not to work, but it worked fine after reinstalling). The whole process requires patience to avoid the spring flying off and getting lost. After replacing the battery, immediately test if the lock button works. It’s advisable to prepare the new battery and tools in advance. The car key is delicate to disassemble, with tight seams that can easily get stuck. Once done, the sense of achievement is great, and you’ll pick up some minor repair skills.

[DeMarcus]

As a DIY enthusiast, I've disassembled many car keys including this older Sagitar model. The key to battery replacement lies in the tools: use a small flathead screwdriver to gently pry open the shell seam. The battery is a standard CR2032 - be careful not to scratch the circuit board when removing it. Ensure correct polarity when installing the new battery. Test the remote before snapping the key shell back together - if assembled correctly, functionality should restore immediately. This kind of job can be done with basic household tools, saving money and hassle.

[NoahFitz]

Running out of car key battery frequently happens during daily school runs. Here's how I replace my Sagitar key battery: Split the key in half, use a fingernail or card to pry open the seam, replace with a CR2032 battery ensuring correct orientation, press the casing firmly, then test the remote buttons - a green light means success. The whole process takes under a minute, saving a trip to the shop. Remember to choose reliable brand batteries for lasting performance.