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Five Citroen C1 Replacement Key Lessons From Professionals
Citroen Berlingo Key Fob Troubleshooting

Citroen's Berlingo Multispace occupies a utilitarian market in the people-carrier market. Its sliding doors at the rear allow it to be squeezed into parking bays and its robust cabin is more resistant to crashing than many of the more expensive rivals.

But if your key fob was exposed to soapy or salt water, it might not be working again, even after a fresh battery and changing the program. 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. Lay it on its back with the button down and let it drain for a couple of minutes before wiping the inside using a soft cloth. This will stop any condensation from damaging the electronic chip.

If your Mk 2 Citroen Berlingo or Mk 3 Citroen Berlingo dashboard warning light, which looks like the car key symbol illuminates then this could indicate a fault with the immobilizer. It is a security device inside the vehicle that prevents thieves from stealing it. If this is the situation you'll need to see a Citroen dealer or a trained mechanic to fix the issue.

A constant warning light could mean that the power-assisted steering is not working properly. If this is the case you need to stop the car and test the temperature and pressure in the engine before restarting it. If the issue continues, you'll need to consult an authorized Citroen dealer or mechanic in order to resolve the problem.

Dead Battery

The most common reason for the key fob not functioning on your Berlingo is an inactive coin battery. The button cell battery within the key is very simple to replace, but you must ensure that you select the correct voltage and size battery. An uncompatible battery can harm the circuit. A dead coin-cell battery can also disable anti-theft. This is a security function that stops the engine from starting without the physical key.

If the key fob still not responding to the lock button despite replacing the battery it could be a faulty receiver module that isn't communicating with other modules on your vehicle. This can be diagnosed with an OBDII scan tool.

If the key fob isn't responding, then you can try reprogramming it. To do this, follow the directions in the manual for your owner. After the device has been reprogrammed, the device should be working perfectly.

Diagnostics of a fault

Citroen Berlingo owners are generally pleased with the reliability of their vehicle. However, as with all vehicles there are some issues that occur. A key fob that is dead is one of the most frequently encountered issues. This is a simple problem to identify and can be resolved within a matter minutes. Other problems that can arise include 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 remember that not all key fob batteries are to be the same. Some batteries are made of inferior materials and can damage your remote key fob or other electronic components in your car. Use only batteries that are the same size and voltage as the original when replacing the battery. Also, make sure the new battery is properly fitted. Check that the positive (+) side of the battery faces upwards when it is inserted into the battery slot.

If you notice an exclamation mark in the form of an equilateral triangle on the dashboard, it's a sign that there is a problem with the vehicle's electric power-assisted driver. If the warning light is illuminated when you drive and it is not able to be removed, we recommend you seek out a certified mechanic at an Citroen Berlingo dealer (incl Multispace).

Radio Interference

If your key fob isn't working all of a sudden it could be the result of radio interference. This is a problem that can be caused by devices that operate on the same frequency as remote controls. For instance, some wireless security systems as well as aftermarket LED lights can interfere with RF signals. Consider moving citroen replacement key to another location if you have them in your home.

Environmental elements can also impact the key fobs of cars and other devices using the same frequency. For instance, metal objects can influence the strength of the signal. The weather's rain can also cause the antenna of the fob to bend, leading to weaker signals. In some cases, the key fob may not respond to radio signals even though it is near to the vehicle.


To ensure that your key fob's health is good, check the battery. It must be in good working order, and the contacts should be free of corrosion. Contacts that are corroded are an important reason for the fob's key not responding to radio signals. A depleted battery may cause a fob to malfunction. If you replace the battery but the problem persists, it is likely that the antenna is faulty. A locksmith can inspect the keyfob and make repairs.