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Citroen Berlingo Key Fob Troubleshooting Citroen Berlingo Multispace fills a niche in the market for people carriers. Its sliding rear doors make it easy to squeeze into parking bays and its robust cabin is more bashing-proof than most upmarket rival offerings. If your key fob was submerged in saltwater or soapy liquid it might not function in the future, even after replacing the battery and reprogramming. The internal chip can be damaged because of exposure to water. Water Damage Shake your key fob to remove as much water as you can. Lay it on the floor with the button facing down and let it run off for a couple of minutes before wiping the inside with a soft cloth. This should stop any condensation from damaging the electronic chip. If the dashboard warning light that appears like a vehicle with the key symbol is on your Mk 2 or Mk 3 Citroen Berlingo then it could be an indication of an immobilizer problem. This is a security element in the vehicle to prevent thieves from stealing it. If this is the case, you will have to visit a Citroen dealer or a trained mechanic to fix the issue. An unending engine warning light could mean that the power-assisted steering is not working properly. If this is the situation you need to stop the vehicle and examine the temperature and pressure in the engine before starting it. If the problem continues to persist then you must visit a Citroen dealership or a qualified mechanic to resolve the problem. Dead Battery A dead battery for your coin is the most frequent reason for your key fob not to function in your Berlingo. The button cell battery inside the key is easy to replace, however it is important to ensure that you choose the right voltage, size and type of battery. A battery that is not compatible can cause damage to the circuit board. A dead battery for a coin-cell could also disable the anti-theft feature. This is a security function that stops the engine from starting without the physical key. If the key fob is still not responding to the lock button after replacing the battery It could be due to an issue with the receiver module, which isn't communicating with other modules in your car. OBDII scanners can identify this problem. If the key fob is not responding, you can try reprogramming the key fob. Follow the steps in your owner's manual to do this. After the device has been reprogrammed, the device should work perfectly. Diagnostics of a fault The reliability of the Citroen Berlingo is generally appreciated by its owners. However, like any vehicle there are occasional issues that do occur. One of the most common is a dead battery on the key fob. This is an easy issue to determine and can be repaired in a matter of minutes. Other issues that could occur are a worn button, water damage to the electronic chip, signal interference, or a remote keyless system receiver module that has developed an issue. It is important to know that not all key fob batteries are created to be the same. Certain batteries are made from inferior materials, and can cause damage to your remote key fob as well as other electronic components inside your vehicle. Make sure to use only batteries of the same type and voltage as the original when replacing the battery. Also, ensure that the new battery is properly fitted. When inserting the battery into the slot, ensure that the positive (+) face of the battery is facing upwards. If you see an exclamation point in the form of an equilateral triangle on your dashboard, it indicates that there is an issue with your vehicle's electric power-assisted driving. If this warning light appears while driving, it is recommended that you seek assistance from a certified mechanic or Citroen Berlingo (incl Multispace) dealership. Radio Interference Radio interference could be a cause your key fob's not working suddenly. This is a problem that could be caused by devices that operate on the same frequency as remote controls. For example, some wireless security systems, as well as aftermarket LED lights can interfere with the RF signals. If you have one of these devices at home, try moving them to a different room to see if this helps. In addition to devices using the same frequency, there are environmental factors that can interfere with the car's key fob. Metal objects, for instance can affect the signal strength. Rainy weather may also bend the antenna of the fob, resulting in a weaker radio signal. In some cases, even when the fob is near to the car it might not respond to radio signals. To make sure that your key fob's health is good make sure you check the battery. It should be in good condition and the contacts must be free of corrosion. Contacts that are corroded are an important reason for key fobs not responding to the vehicle's radio signals. A depleted battery can also cause fobs to malfunction. If replacement key for citroen c1 www.thekeylab.co.uk replace the battery but the problem persists, it's likely that the antenna is defective. A professional locksmith will inspect the key fob and make the required repairs.