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Citroen Berlingo Key Fob Troubleshooting Citroen's Berlingo Multispace occupies a utilitarian segment in the people-carrier market. Its sliding rear doors allow it to fit into parking bays, and its durable cabin is more bashing-proof than the most expensive rivals. But if your key fob has bathed in soapy or salt water, it may not work again – even after a new battery and reprogramming. The internal chip has been damaged due to exposure to water. Water Damage Shake the key fob of yours to take out as much water as you can. Then, place it with the button side facing up and let it drain for a few 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, is lit, it could be indicating a fault with the immobilizer. This is a security component in the vehicle to prevent thieves from hotwiring it. If this is the case, then you must visit an Citroen dealer or a qualified mechanic to resolve the problem. An unending engine warning light could mean that the power-assisted steering is not working properly. If this is the case then you must stop the car and make sure whether the pressure of the oil is in good order and that the temperature isn't overly high before you start it. If the issue continues, you'll need to visit an expert Citroen technician or mechanic to resolve the problem. Dead Battery The most common cause of the key fob that isn't working on your Berlingo is the battery in the coin is dead. The button cell battery that is in the key is very easy to replace, however you must make sure that you select the correct voltage, size and type of battery. A non-compliant cell could damage the circuit. A dead coin-cell battery can also disable the anti-theft feature. This is a precautionary measure which prevents the engine from being started without a physical key. If the key fob does not respond to the lock button after replacing the battery, it could be because the receiver module is faulty and is not communicating with other modules in your vehicle. An OBDII scanner can diagnose this issue. If the key fob isn't responding, you can try reprogramming the key fob. Follow the directions in your owner's manual to do this. Once the device has been reprogrammed, your device should be working perfectly. Diagnostics of a fault The reliability of the Citroen Berlingo is generally highly praised by its owners. Like all vehicles, there are a few issues that can arise. One of the most common is a dead battery on the key fob. Fortunately, it is simple to identify and is easily replaced within a matter of minutes. Other problems could be a worn button, water damage on the electronic chip or signal, interference or a remote system receiver module that is malfunctioning. It is important to keep in mind that not all key fob batteries are made equal. Certain batteries are made from inferior materials and may damage the remote key fob, or other electronic components in your vehicle. When replacing the battery, only make sure you use a battery of the same voltage and type as the original. Also, make sure that the new battery is installed correctly. Make sure that the positive (+) side of the battery is facing upwards when it is inserted into the battery slot. If g28carkeys.co.uk see an exclamation mark in the form of the shape of a triangle on your dashboard, it is a sign that there is a problem with the vehicle's electric power-assisted driver. If this warning illuminates when driving, it is recommended that you seek assistance from a trained mechanic or Citroen Berlingo (incl Multispace) dealership. Radio Interference Radio interference could be the reason your key fob's not working at all times. This is a problem that can be caused by devices that use the same frequency as remote controls. Certain wireless security systems, for instance LED lights sold on the market, can interfere with the RF signal. If you have one of these devices at home, consider moving them to another room to see if it helps. Environmental factors can also interfere with the key fobs of cars, in addition to devices that operate on the same frequency. Metal objects, like a car can affect the strength of the signal. Rainy weather can also cause the antenna of the fob to turn, which results in weaker signals. In some cases, the key fob may not be able to respond to radio signals even when it is located near the vehicle. Examine the battery to confirm your key fob's health. It must be in good health and the contacts should be free of corrosion. A damaged or corroded connection is the primary reason the fob's keypad does not respond to radio signals from a vehicle. A drained battery can also cause the fob to malfunction. If the issue continues to persist after replacing the battery the antenna may be faulty. A locksmith can look over the keyfob and make repairs.