How to Fix a Seat Leon Key Fob That Stops Working
The key fob is a great convenience in your seat leon but it can also be a hassle when it does not work. There are a few things you can try to fix the problem.
You can easily fix the key fob that is not working by replacing the battery. Other issues may require more advanced troubleshooting, however.
Dead coin battery
If your key fob suddenly stopped functioning, it could be due to a dead coin-cell. It's easy and affordable to change the battery. Your owner's guide will give you the instructions. A majority of electronics stores and local dealerships offer batteries for replacement. Be sure that the new batteries are of the same voltage and size as the original ones. The chip in your key fob could be damaged when you replace the battery improperly or with another type.
Check the metal clips that secure the batteries. They should be tight and not rusted or worn. They are typically made of sprung steel. If they lose tension, the battery may shift and cause contact issues. In this situation the key fob will not respond to signals from the remote control.
Key fobs can also fail due to damages to the water or signal, and other issues with the receiver module. If none of these solutions work, consider replacing the remote key fob. You could also try a faraday pouch, which will shield the key fob from electromagnetic fields. If your key fob does not function after trying these solutions, then you should visit the dealer to change the programming of the key fob. The cost of this service can vary depending on the brand and model of your vehicle.
Water damage
Depending on the frequency you use your seat leon keyfob, it can last anywhere between two and four year before it requires to be replaced. Water damage could be the reason for a remote that suddenly ceases to function. This type of damage can occur if the remote is moved or opened and may also cause corrosion to the circuit board. The key can also be reprogrammed to restore the functionality, but this is best reserved for auto technicians with experience.
Rubber seals on the key fob prevent water from contacting the electronic chip, however prolonged exposure could damage it. Exposure to any kind of water could cause the key fob's electronic components to fail, even if the chips are not fried. In certain cases the buttons of the key fob can be resoldered, but it isn't always successful, especially when the buttons are pressed or pulled with force.
If the key fob is submerged in water, take it off first and then clean with isopropyl the contacts on the circuit board. After drying thoroughly then, replace the battery. If the key fob doesn't work after trying this option, you can try using an alternate remote control to reset the system. You can also remove the 12 volt battery for a few seconds. Remove seat leon car key battery to the positive.
Radio interference
It can be a frustrating experience and even dangerous, when the key fob on your seat leon fails to function properly. A dead battery is the most frequent cause for key fob issues, but there are many other reasons that can interfere with the transmission of signals. These could include damage to the antenna, an unpaired key that needs to be reprogrammed or a malfunctioning receiver module.
Remove any additional transmitters from the key ring, and test your key fob in a location that is not prone to interference. You can also reboot the computer onboard by disconnecting and reconnecting the 12 volt batteries for a few moments. If this doesn't solve the problem, you may have to replace the battery.
Accessories that are added on, such as LED lighting can cause key fob problems. These can interfere with the signals that is used by the key fob to communicate with the car's microprocessors. Daily Mail reports that these devices are sold for as little as PS100. They are simple to use. These devices are used to trick proximity-sensing systems of keyless entry into believing that a key is close to. This type of attack occurs typically in vehicles which have internet access. It is crucial to be aware of these risks and take precautions.
Faulty keyless entry system
While a key fob provides an incredible convenience, it can be frustrating when it ceases to function. Most of the issues that result in the key fob of your car to stop working can be resolved. First, check the battery. Often, simply replacing the batteries in your key fob will get it working again. It could also require to be reset or changed. Check the owner's manual for specific instructions.
Another issue with key fobs is radio interference. This can be caused from objects in the vicinity of your car or weather conditions, or other transmitters using the same frequency. If you're experiencing this issue Try relocating the key fob or operate it in areas that don't have other transmitters nearby.
If your key fob isn't working after changing the batteries and changing the program, there's a possibility that the key has been damaged. This can happen when the fob is dropped or exposed to water. If the key is damaged you can either buy replacement parts from an authorized service center or bring it to your local locksmith to be programmed to your vehicle. Make sure you use a genuine BMW fob. Otherwise, you could run into further problems down the line. To avoid this it's a good idea keep an extra key fob with you at all times.