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Citroen Berlingo Key Fob Troubleshooting Citroen Berlingo Multispace fills a niche in the market for people carriers. Its sliding doors at the rear allow it to fit into bay parking spaces and its robust cabin is more bashing-proof than many of the more expensive rivals. But if your key fob was exposed to soapy or salt water, it might not work again – even after a new battery and programming. The internal chip may be damaged because of exposure to water. Water Damage After retrieving your key fob from whatever puddle, pool or washing machine it was swimming in, get rid of as much water as possible by shaking it. Then, place it with the button side facing up and let it drain for a few minutes as you clean the inside with a clean cloth. This should stop any condensation from damaging the electronic chip. If the dashboard warning light that looks like a car, with a key symbol in it is on your Mk 2 or Mk 3 Citroen Berlingo then this could indicate an immobilizer fault. This is a security feature that is installed in the vehicle to stop thieves from hotwiring it. If this is the case then you should visit an Citroen dealer or a qualified mechanic to fix the problem. A constant engine warning light could mean that the power-assisted steering is not working properly. If this is the case, then you need to stop the car and ensure whether the pressure of the oil is ok and that the temperature is not too high before you start it. If the problem persists then you will need to see an expert Citroen technician or mechanic in order to resolve the problem. Dead Battery The most common cause of the key fob being inoperative in your Berlingo is the battery in the coin is dead. The button cell inside the key can be easily replaced but it is crucial to use 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 safety feature that stops the engine from being started without a physical key. If the key fob doesn't respond to the lock button, even after replacing the battery, it could be that the receiver module is defective and not communicating with other modules in your vehicle. An OBDII scanner can diagnose this issue. If the key fob still isn't working, you may try reprogramming it. To do this, follow the guidelines in the manual for your owner. After it is reprogrammed device should be working perfectly. Fault Diagnosis The reliability of the Citroen Berlingo is generally highly praised by its owners. However, as with all vehicles, there are occasionally faults that occur. One of the most common is a dead key fob battery. Fortunately, it is simple to determine and is easily replaced in a few minutes. Other causes include a worn-out button, water damage to the electronic chip, interference in the signal, or a remote system receiver module that is defective. It is important to know that not all keyfob batteries are same. Certain batteries are made of inferior materials and could cause damage to your remote, or other electronics. When replacing the battery, ensure you use a battery that is of the same voltage and type as the original. Also, ensure that the new battery is inserted correctly. Check that the positive (+) side of the battery faces upwards when it is inserted into the slot for the battery. If you see the warning light on the dashboard of your car that looks like a triangle with an exclamation point, this signifies that the vehicle is detecting an issue with its electric power-assisted steering. If this warning light illuminates while you are driving then we recommend that you seek out a qualified mechanic at a Citroen Berlingo dealership (incl Multispace). Radio Interference If your key fob isn't functioning at all, it could be a result of radio interference. This issue could be caused by devices that use the same frequency as remote controls. Certain wireless security systems, like LED lights from the aftermarket, could interfere with RF signal. Consider moving replacement key for citroen c3 to an alternative location if you've got them in your home. In addition to devices using the same frequency, there are also environmental factors that can interfere with the car's key fob. Metal objects, like a car, can interfere with the strength of the signal. Rainy weather may also bend the antenna of the fob, resulting in a weaker radio signal. In some instances, the key fob may not respond to the radio signals, even if it is within range of the vehicle. To ensure that your key fob is healthy examine the battery. It must be in good working order and the contacts must be free of corrosion. A damaged connection is the main reason why the keyfob isn't responding to radio signals from the vehicle. A drained battery may cause the fob to malfunction. If the issue persists after replacing the battery the antenna might be damaged. A locksmith can inspect the keyfob, and make repairs.