Losing or needing to replace your BMW 535i key fob can be a hassle, but programming a new key fob for your 2008 BMW 535i doesn’t have to be complicated. This guide provides step-by-step instructions for programming your 2008 BMW 535i key fob, allowing you to regain access and control of your vehicle quickly. Whether you have a working key or need to start from scratch, follow these methods to program your remote.
Method 1: Simple Key Fob Programming Inside Your 2008 BMW 535i
This method is a straightforward approach to programming your 2008 BMW 535i key fob, achievable right from the driver’s seat.
- Get inside your BMW 535i and close all doors. Ensure all doors are completely shut before beginning the programming sequence.
- Turn the ignition to position 1 and back to off within 5 seconds. Position 1 is typically the first click when you insert and turn your key, activating the car’s electronics without starting the engine. Do this quickly and smoothly.
- Remove the key from the ignition. Take the key completely out of the ignition switch.
- Press and hold the unlock button on the key fob. While holding the unlock button, within 5 seconds, press the lock button three times. Continue holding the unlock button throughout this process.
- Release both buttons. Let go of both the unlock and lock buttons simultaneously.
- Listen for the door locks. The doors should lock and then unlock automatically. This lock and unlock cycle indicates that the key fob programming has been successfully completed.
Method 2: 2008 BMW 535i Key Fob Programming with a Working Key
If you possess a working key fob, you can utilize this method to program an additional or replacement key for your 2008 BMW 535i.
- Enter your BMW 535i and ensure all doors are closed. Just like in Method 1, all doors must be properly closed.
- Quickly turn the ignition on and off. Insert your working key into the ignition, turn it to the ‘on’ position (position 2 – where dashboard lights illuminate) and then immediately turn it back off within 5 seconds. Do not start the engine.
- Remove the working key. Take the first, working key out of the ignition.
- Position the new key fob near the receiver. Hold the new key fob close to your left shoulder. This brings the key closer to the remote receiver antenna of your BMW, which is located in this general area.
- Program the new key fob. Press and hold the unlock button on the new key fob. While holding the unlock button, press the lock button three times.
- Release the unlock button. Let go of the unlock button. The doors should lock to confirm successful programming.
- Repeat for additional keys. If you have more key fobs to program, quickly repeat steps 4 and 5 for each additional key within 30 seconds.
- Test the programmed key fobs. Ensure each programmed key fob correctly locks and unlocks the doors of your 2008 BMW 535i.
Method 3: Alternate Key Fob Programming Without a Working Remote for 2008 BMW 535i
This method is designed for situations where you do not have a working remote and need to program a new 2008 BMW 535i key fob.
- Quickly turn the key to position 1 five times. Insert the key into the ignition and rapidly turn it to position 1 (accessory position) and back to off five times in quick succession.
- Remove the key from the ignition. Take the key out of the ignition switch after completing the previous step.
- Program the key fob. Hold down the unlock button on the key fob, and while holding it, press the lock button three times. Then, release the unlock button.
- Program additional keys (if needed). If you have another key fob to program, repeat the button pressing sequence (step 3) within 30 seconds.
- Turn on the ignition to finalize. Insert the key into the ignition and turn it to the ‘on’ position (position 2) to finalize the programming process.
Important Notes Regarding Your 2008 BMW 535i Key Fob Programming
Remote Control vs. Immobilizer: It’s crucial to understand that these programming methods are specifically for the remote control functions of your 2008 BMW 535i key fob – locking, unlocking, and panic alarm. These procedures do not program the transponder chip required for the immobilizer system, which is necessary to start your car.
Immobilizer Programming Requires Professional Assistance: Programming the transponder chip for the immobilizer system is a more complex process that requires specialized diagnostic equipment. This type of programming cannot be done using the methods described above.
Professional Programming Options: To program the immobilizer chip and ensure your new key can start your 2008 BMW 535i, you will need to visit a qualified professional. Your options include:
- BMW Dealership: BMW dealerships have the equipment and expertise to program both the remote and immobilizer functions of your key fob.
- Certified Locksmith: Many certified automotive locksmiths are also equipped to handle BMW key programming, often at a more competitive price than dealerships.
Troubleshooting: If you encounter difficulties programming your 2008 BMW 535i key fob using these methods, double-check each step and ensure you are following the instructions precisely. If issues persist, it’s advisable to seek professional help from a dealer or locksmith, as there may be underlying issues with your vehicle’s system or the key fob itself.
By following these methods, you can attempt to program your 2008 BMW 535i key fob yourself for remote functions. However, remember that for full functionality, including starting your vehicle, professional immobilizer programming may be required.
