1. It is 100% safe and easy to use, as long as you follow the steps below and use Esys to program.
Step 1: Connect VVDI2 to your BMW via OBD cable and run the software on your computer.
Step 2: Select BMW and then CAS4/CAS4+ option on the software interface.
Step 3: Unlock CAS4/CAS4+ in about 10 minutes by clicking the “Unlock” button.
Step 4: Read CAS4/CAS4+ data and save it as a backup file.
Step 5: Generate a dealer key with VVDI2 and insert it into the ignition or hold it near the steering column.
Step 6: Choose “Program dealer key via ignition” option on the software interface. This will ensure that the wireless function of the key works properly.
Step 7: Write back the original CAS4/CAS4+ data with Esys and code it to your BMW.
That’s it! 🙂
You have successfully programmed a CAS4/CAS4+ key by OBD with VVDI2. You can also use VVDI2 to reset mileage, restore coding, or do other functions for your BMW.
2.Tips and Reviews:
To avoid any power issues, you can run a jumper cable from your running van to the BMW you are working on.
Some CAS4/CAS4+ versions may not be compatible with VVDI2 by OBD. If you encounter any errors or warnings, you can use VVDI prog and eeprom dump instead.
Many users have confirmed that VVDI2 works well for CAS4/CAS4+ by OBD. You can check some of their feedbacks below:
Review 1: I made an extra key to a 14 528i within 15 min by OBD with VVDI2. No flashing, just unlock CAS4 in about 10 min.
Review 2: I tried on a 7 Series and a 5 Series F10. The 7 Series gave me an error saying CAS4 software version was higher than expected, so I did it by VVDI prog and eeprom dump.
The F10 worked nicely through OBD. Just remember to choose “Program dealer key via ignition” option, otherwise the wireless function of the key won’t work.
Review 3: I did two CAS 4 with VVDI2 and had some issues. One of them could not reset mileage and another one could not restore coding even with Autohex. I fixed everything but it took too long.
Tips and Reviews for VVDI2 Programmer: How to Program BMW CAS4/CAS4+ Key by OBD Safely?
Before you use the VVDI2 programmer to program a CAS4/CAS4+ key for your BMW by OBD, you may have some questions or concerns.
3.Here are some tips and reviews from experienced users to help you out.
- It is recommended to backup the coding with Esys first, in case anything goes wrong. If you brick the CAS, you may be able to reflash it by OBD with Esys, but it is not guaranteed.
- CAS4 by OBD is only for key learning, not for other functions like mileage correction. It is safe because it does not write any memory, it just reads the MCU and makes a dealer key. It is similar to BMW Explorer.
- The CAS also needs to be preprocessed by VVDI2 before key learning. If there is any error during preprocessing, it may cause damage to the CAS.
- So it is better to make a backup first.
If you have a backup file, you do not need to downgrade the CAS. You can generate keys with your backup file directly.
- VVDI2 will flash the MCU when unlocking the CAS. This may pose some risk to the CAS, so be careful and follow the instructions carefully.
- CAS4 by OBD may not work for some versions of CAS4/CAS4+. If you encounter any errors or warnings, you can use VVDI prog and eeprom dump instead.
- CAS4 by OBD may make BMW lose money in spare parts, because it makes key programming easier and cheaper.
These are some of the tips and reviews from real users who have used VVDI2 for CAS4/CAS4+ by OBD. We hope they can help you with your key programming process. If you have any questions or feedbacks, please feel free to contact us. Thank you for choosing VVDI2. 😛