Why Does BMW Comfort Access Not Working | Here’s The Fix!

The BMW comfort access is an advanced feature that brings about ultimate comfort while driving. It is an automatically detectable keyless feature which opens the car door within a range. But this comfort access might stop working as smoothly because of a few mishaps.

BMW comfort access not working is mainly due to a faulty or problematic door handle. Apart from that, a drained key fob battery, blown fuse or a failed antenna might be the biggest reasons for the comfort access not working.

In this article, I have included the full details of the BMW comfort access and the problems related to it. This complete guide will allow you to gain all the knowledge about this comfort access not working.

What Is The BMW Comfort Access Feature?

BMW comfort access feature is included in the car to make it easier to get in and out of the car. This is also known as the better version of the  keyless entry feature of BMW. 

This system includes sensors all over the door handle. A key fob is the main controller of the comfort access system. The sensors in the door detect the presence of the key fob in the surroundings. 

Since the required range for a BMW sensor is 5 feet, the key can be located anywhere within that distance. When you touch the handle of the car door, the door will detect the key and unlock automatically. 

Similarly, when you need to unlock the door, simply tap on the outside of the door handle. It will automatically lock again without needing to manually lock it. For starting the car, all you have to do is tap the ignition button to start driving. 

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What Causes The BMW Comfort Access To Not Work?

When the BMW comfort access stops working, it is pretty easy to locate the source of the problem. Almost all of the time, the reason is a problematic door handle on the BMW. 

Otherwise, the reasons could be the fuse, antenna or the key fob itself. I have compiled all of the possible causes for the BMW comfort access not working along with their fixes.

Faulty Door Handle

The sensors which detect the key fob of the BMW are located inside the door handles. So, this is an extremely sensitive part for the BMW comfort access. The sensors inside are connected through an intensive wiring system. 

Any kind of damage to this wiring system will lead to drainage of a high amount of current. 

As a result, the electrical connections of the system will become too faulty. This will turn off the comfort access feature from being deployed automatically.

In order to get rid of this problem, you need to get to the wiring system of the door handle first. Remove the outer part of the door handle to access the wires inside. 

Inspect all of the wires for damages and replace the damaged wires properly. Look out for corrosion in the wires and remove the corroded parts too.

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Drained Key Fob Battery

The key fob that comes with the comfort access system uses a battery in order to work. This battery gets drained like any other batteries in the market over time. A drained battery fails to provide enough voltage and current needed to operate. 

When the battery loses so much charge, the key fob fails to be detected by the sensors. As a result, the comfort access system stops working.

The simplest way of solving this problem is to put in a new battery in the key fob. After installing a new battery, put the key in and out of the keyhole once. Then test the locks to sync up the system.

Blown Fuse

The fuse in the electrical system of the door handle acts as a protectant of the entire system. When a current that is more than the limited current goes through the fuse, it cuts off the current flow. 

As a result, the comfort access features stop working due to lack of electrical flow. The fuse can be blown because of the damaged car door handle as a side effect too. 

Purchase new fuses with a 5A or 7.5A to replace the blown fuse. You will find the fuse in the glove compartment of the car. Replace the melted fuse with the new one inside the junction box.

Failed Antenna 

The antennas are present on both sides of the door handle individually, These antennas are inside the central console. The main function of these antennas is to intercept the signal in order to complete the comfort access signal process.

Problems in this antenna can lead to the antenna failing profusely. This failure can be due to corrosion within the antenna. 

Any broken parts in the antenna results in the same thing as well. Either of these can stop the antenna from transmitting the signals. 

The only way to fix this issue is to replace the antennas. This might be a difficult fix for you to do on your own. So, you can take the BMW to a repair shop for this replacement. 

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In this section, I have covered the most asked questions about the BMW comfort access. After reading this section, you will know even more regarding the BMW comfort access not working.

What Are The BMW Comfort Access System Components?

BMW comfort access system consists of three individual features and parts. It includes Comfort Entry which only requires you to have the key fob within the range to unlock the door. Comfort Go is the second part which starts the engine without putting the key in ignition. The third part is comfort locking which can be done with just a touch on the door.

How To Program A New BMW Comfort Access Key?

To program the BMW comfort access, press down the unlock button of the BMW. Tap on the key fob of comfort access three times in a row. Release the previously held down unlock button. Turn the ignition key on of the BMW in order to properly pair up the key fob.

How To Reset BMW Comfort Access?

To reset the BMW comfort access, press down on the volume button for about 30 seconds. The screen will go blank afterwards and the comfort access system will start rebooting. You can do the same with the Mute button as well. Once the reboot is done, the reset will be completed.

Is The BMW Comfort Access Safe To Use?

As useful as the comfort access feature is, it is also pretty unsafe to use because of thievery. If someone else somehow gets access to your key fob or gets it within a 5 feet range of the door, they can unlock the car. Such circumstances can lessen the security of the BMW and increase chances of someone breaking in. 

How Do I Know If I Have Comfort Access On My BMW?

If the BMW door handle has several designs or ridges along the handle, comfort access might be featured on the BMW. Along with that, look up the VIN number of the BMW in the BMW VIN Decoder online. If your BMW VIN has the S322A option, it for sure features the comfort access on BMW. 

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BMW comfort access feature is extremely useful to access the BMW within seconds without needing to insert any key in the system. This feature does not do any harm to the BMW if it stops working. 

However, it will just take away the extra benefits you can achieve from the comfort access feature. Therefore, the best option will be to fix up any problem the system might be facing.

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