How to Use the Key to Remotely Start a BMW 5 Series?

[MichaelDella]

To remotely start a BMW 5 Series using the traditional remote key, press the lock button three times consecutively. Below is additional information about remote starting: 1. Principle of Remote Starting: Remote starting a car involves using the remote key to start the engine or motor without the need for someone to enter the vehicle. It is a function that allows the vehicle to be started through remote control. The principle is that the key or a mobile phone sends a signal to remotely start the engine, and most models can be controlled via the car key. 2. Installation Conditions for Remote Starting: The remote start control system can only be installed in automatic transmission models. This is because automatic transmissions are equipped with a TCU (Transmission Control Unit), which communicates gear information to the ECU (Engine Control Unit). The engine will only start when the onboard computer confirms that the gear is in the P (Park) position. This is done to prevent the vehicle from moving unexpectedly. Aftermarket installations do not have this protective feature.

[DiLydia]

Using the key fob to remotely start the BMW 5 Series is something I do all the time—super convenient! The steps are actually very simple: After getting out of the car, first lock it with the key fob, then press and hold the lock button toward the car for about 3 to 5 seconds. You’ll know it worked when you hear the engine start or see the lights flash. This method is especially useful in winter, as it pre-warms the car and automatically turns on the AC to heat up the interior, so you’re comfortable as soon as you get in. I use it every day, especially in the mornings to save time—just make sure to do it in an open area, not a closed garage, to avoid any risks. If the key fob battery is weak or there’s signal interference, it might not work, so check the key regularly. The whole process takes just seconds—effortless and efficient. Highly recommended!

[Yolanda]

I've tried the key fob remote start feature on the BMW 5 Series a few times, and it's quite interesting from a technical perspective. The key sends a signal, and upon receiving it, the car activates the engine. You usually need to hold down the lock button for about 4 seconds, and the small LED light on the key will flash once to confirm. The signal range is limited, so it's best to operate within 50 meters in an open area. The system is based on the Comfort Access function—if the environment is safe, the car starts and also preconditions the climate control. I noticed that if the vehicle isn't locked or the key battery is low, it might fail, so checking the settings in advance is wise. Overall, this intelligent tech design helps me avoid extreme cabin temperatures, making it both practical and user-friendly.

[PiperDella]

Using the key to remotely start a BMW 5 Series puts safety first. First, ensure the car is parked in a well-ventilated area—never operate it indoors or in underground parking lots. After locking the car, press and hold the lock button on the key for about 3 seconds, and the engine should start. Once started, the car will automatically shut off after 10 minutes if no one enters. Every time I use this feature, I make sure the surroundings are safe to avoid carbon monoxide risks. It’s a simple process, but remember to regularly maintain the key battery to ensure proper functionality. This feature is especially useful in harsh weather conditions.

[BrodyFitz]

The steps to remotely start the BMW 5 Series using the key are as follows: After exiting the vehicle, ensure all doors are locked. Then, point the key at the car and press and hold the lock button for approximately 3 to 4 seconds. The engine will start with a sound, and you can wait for the car to warm up before getting in. Once started, the air conditioning automatically activates, maintaining a comfortable temperature. I've used this feature multiple times; it's simple and quick, requiring no complex setup, but the vehicle must support this function. Remember to use it in an open area and not from too far away. Once started, just wait—it saves time and effort.