How to Replace the Battery in a 2003 Volkswagen Passat Key Fob
If your Volkswagen key is not open doors perfectly, the battery most likely needs to be changed. Below, we explained how to disassembly your remote key fob and change your Volkswagen key battery step by step.
What size battery does 2003 Volkswagen Passat keyless entry remote required
Before starting disassembly keyless entry remote check all that you need: flat head screwdriver and CR2032 battery.- 1xCR2032 battery
- flat head screwdriver
Simple steps to replace the battery in your Passat's keyless entry remote
A tiny button battery installed in the your key fob. Open the key if it is in the keyless entry remote.
Accurately try to pry apart your remote key fob with flat head screwdriver. Replace 1xCR2032 battery with flat head screwdriver.
Change old battery with new one CR2032. Every battery has a negative and positive side and if you put the wrong connector down, the current cannot go into your circuit board and make it work. Check position on battery, by "+" mark.
Before assembling keyless entry fob's case, make sure that all functions works by testing buttons on remote key fob.
At this point squeeze keyless entry fob's back cover together. Line your case pieces together and put it in place by hands from top to bottom. If your remote key fob shell firmly closed, we done. If not, repeat the last step.
How to change the battery video guide
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Still not working? Buy new one