Why does the alarm go off on my Passat?
The alarm may be able to function after the battery is disconnected due to stored energy in it’s system, capacitive or battery. BTW, if you have a slow drain you should locate it…or install a trickle-charger to maintain the battery for long duration parkings.
What should I do after changing the battery in my Volkswagen Passat?
After changing or disconnecting the battery Basically, you need to reboot the computer on my Jetta TDI 2006. Turn the key on, but don’t start it. If you have to jump it, leave the jump in place to run the computer Leave it with key on, but not started for about 15 minutes.
What to do when your Volkswagen Passat won’t start?
After changing to new one, It still won’t start, and display some error message (tyre pressure flat, and some others) What the mechanics did was to off the car, and get into the the car with they key. Once the key is detected, just steer the wheel full left and full right. Then the car can start usual.
What does it mean when a VW battery wont start?
First, you want to find out if the immobilizer is the problem. To do this, turn on the battery in your Volkswagen and see if the immobilizer warning light is flashing on your dash, most likely in your speedometer. It should look like an outline of a car with a key inside it. If it’s flashing, it means the immobilizer’s disconnected from the system.
When does a car battery start to drain?
The battery drain could be something coming on after the car is parked. Anytime after one hour of being parked, and several times afterwards, sneak up on your car. Be careful not the “awake” the alarm. Closely look for any lights, and listen for any sounds.
When does the battery drain on a VW?
We called VW HQ to “register” this as a problem before the warranty expired. Since you appear to be on new car warranty, then it is time to check out your states lemon laws. The battery drain could be something coming on after the car is parked. Anytime after one hour of being parked, and several times afterwards, sneak up on your car.