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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 be squeezed into parking bays and its robust cabin is more robust than the majority of upmarket competitors. If your key fob was submerged in soapy water or saltwater the device may not function again, even after a new battery and reprogramming. The internal chip may be damaged because of exposure to water. Water Damage Shake your key fob to get rid of as much water as you can. Lay it flat with the button side facing up and let it dry for a couple of minutes while you wipe the inside down with a clean cloth. This will stop any condensation from causing damage to the electronic chip. If your Mk 2 Citroen Berlingo or Mk 3 Citroen Berlingo dashboard warning light, which looks like a car key symbol, illuminates then this could indicate an issue with the immobilizer. This is a security component that is installed in the vehicle to stop thieves from stealing it. If this is the case, then you should visit a Citroen dealership or a certified mechanic to resolve the problem. A continuous engine warning light could mean that the electronic power assisted steering system is malfunctioning. If this is the situation, then you must take the car off and check that the pressure in the oil is fine and the temperature isn't too high before you restart it. If the problem continues to persist, you will need to see an authorized Citroen dealer or mechanic to address the issue. Dead Battery A dead coin battery is the most common reason for your key fob not to function in your Berlingo. The button cell battery in the key is simple to replace, however you must make sure that you are using the correct voltage, size and type of battery. replacement key for citroen c3 that is not compatible can cause damage to the circuit board. A dead coin-cell can also disable anti-theft. This is a safety measure that prevents the engine being started without a physical key. If the key fob does not respond to the lock button even after replacing the battery it could be because the receiver module is faulty and isn't communicating with other modules in your vehicle. This can be identified using an OBDII scan tool. If the key fob is still not responding, try reprogramming it. To do this, follow the steps in the owner's manual. It should work fine once it is reprogrammed. Diagnostics of a fault Citroen Berlingo owners are generally satisfied with the reliability of the vehicle. As with all vehicles faults can occur. A key fob that is not working is one of the most frequently encountered issues. This is a straightforward issue to determine and can be fixed in a matter of minutes. Other problems that can arise include a worn button or a water damage to an electronic chip, signal interference or a remote keyless system receiver module that has developed a fault. It is important to know that not all key fob batteries are made to be the same. Certain batteries are made of inferior materials that can damage your remote as well as other electronic. Use only batteries that are the same size and voltage as the original battery. Make sure that the new battery fits properly. When inserting the battery into the slot, make sure the positive (+) face of the battery is facing towards the upward direction. If you notice the warning light on your dashboard that looks like an exclamation mark, it indicates that your vehicle has detected an issue with its electronic power-assisted steering. If this warning light illuminates while you're driving and it is not able to be removed, we recommend you contact a trained mechanic at the Citroen Berlingo dealer (incl Multispace). Radio Interference Radio interference could be the reason your key fob's not working at all times. This is a common problem caused by devices that operate on the same frequency as your remote control. Some wireless security systems, for instance LED lights sold on the market, can interfere with the RF signal. If you own one of these gadgets at home, you can try moving them to another room to see if it helps. Environmental factors can also affect the key fob in automobiles and other devices that operate on the same frequency. For instance, metal objects may affect the signal's strength. The weather's rain can also make the fob's antenna bend, which can result in weaker signals. In some cases even if the key fob is close to the car it may not be able to respond to radio signals. Examine the battery to confirm your key fob's health. The battery is in good condition and the contacts shouldn't be affected by corrosion. A damaged or corroded connection is the main reason why a keyfob does not respond to radio signals coming from the vehicle. A depleted or damaged battery can cause fobs to fail. If you replace the battery but the issue persists, it is likely that the antenna is defective. A locksmith can examine the keyfob and make repairs.