Can the Bluetooth key for Changan CS75 be retrofitted?
4 Answers
Changan CS75 Bluetooth key can be retrofitted. The Bluetooth key is an invisible smart key, but it has all the functions of a physical key. The specific introduction of the Bluetooth key is as follows: Functions: The Bluetooth key is usually used with a mobile app, which can remotely control functions such as the air conditioning and doors of the vehicle, making it more intelligent to use. The remote key has relatively single functions and can only remotely control the door switch or trunk switch at close range. Power supply method: The Bluetooth key does not require additional battery installation. The remote key requires a button battery for power supply and needs to be replaced regularly. Usage method: The Bluetooth key requires opening the phone for remote control, while the remote key only needs to press a button, making it faster to use.
My Changan CS75 didn't originally come with a Bluetooth key function, but I successfully installed a third-party device last year. The total cost was around 1,500 yuan, using a well-regarded brand kit from the market. It connects to the OBD port, and after matching with the vehicle's anti-theft system, it allows unlocking via a mobile app. The upgrade has indeed made things much more convenient, especially when forgetting keys on rainy days—just a tap on the phone solves it. However, I've experienced unstable Bluetooth signals a few times, requiring re-pairing, and occasionally, the battery drains unusually fast. I recommend finding a professional modification shop for installation—they have the right tools and experience, whereas DIY attempts can lead to mistakes. Overall, it's a practical upgrade, but don't expect it to be as flawless as the factory feature; minor issues should be tolerated.
Having played with cars for years, I'm interested in Bluetooth key modifications, and it's completely feasible to retrofit a Chang'an CS75. I've used several kits like smart modules or wireless adapters—installation is plug-and-play without complex wiring, just pair via phone Bluetooth and complete the setup in the app. The remote start and lock features are powerful but have limited range, working best within 10 meters. Pay attention to compatibility—choose reputable brands to avoid signal interference or failure of the anti-theft system. The retrofit costs around 1,000 yuan, offering good value, but battery drain is fast and requires management. This technology is spreading quickly, and self-exploration is fun, but safety comes first.
As an average car owner, I've carefully considered installing a Bluetooth key. Although the Changan CS75 supports it, the risks are significant—it could affect the vehicle's original electronics or network security, making it vulnerable to hacking. I've researched cases where modifications voided the warranty outright, leading to expensive and time-consuming repairs if issues arise. The cost exceeds a thousand yuan, making it more practical to opt for a higher trim model upfront. If modification is a must, use encrypted modules and choose officially recommended shops for thorough testing. Don't cut corners—safety outweighs convenience. Simply keeping the original keys secure daily is a better approach.
