Q. Can I test the connection before making a purchase?

A. Yes, you can test the connection by either going to the tab Codes > Read DME Codes, or by opening the side menu and pressing My Licenses and verifying you see your VIN in the top bar.

Q. Can I tune different cars with one license?

A. No, each license is tied specifically to a vehicle (VIN + your account). Tuning a different car or using a new account requires purchasing new license(s).

Q. Can I tune multiple cars with one login account?

A. Yes, you can tune as many vehicles as you like with one login account. There is no limit to the number of vehicles tied to one account.

Q: Can I transfer my MHD license to another account or email address?

A: No, MHD licenses are fully linked to the user account and email. Using a new account / email will require purchasing a new MHD License!

Q: I bought a car that was already tuned by MHD, can I access the MHD License from the previous Owner?

A: No, MHD licenses are fully linked to the user account and email. Transferring from another user is not possible!

Q: I bought a new car, can I use my old MHD License?

A: Tuning a new car will require a new MHD License!

Q: I deleted my account, can i transfer my license to another account?

A: Unfortunately this is not possible, deleting your account will also delete all information and your license can not be recovered

Q: Can I check if my car was already tuned by MHD and what map / flash option it runs?

A: We do not collect information from our Users about last flashed file or flash settings. We are also not allowed to share any other information due to privacy laws.

Q. Is a battery charger required?

A. A battery charger is highly recommended for Full Write (initial MHD install / uninstall). It is also recommended Long Write (logic change) depending on your adapter speed. A healthy battery will handle Map Write fine but a battery charger may still be needed if flashing using a K+DCan cable.

Q. How do I take good data logs?

1. Always use default logging channels (mon > options > reset logging channels to default)

2. Always log in PSI not BAR

3. Press the tab Mon > Data Logging (ensure auto logging is checked).

4. Stabilize around 2000 rpm use 3rd gear (on 6 / 7 Speed) 4th gear (on 8 speed) manual mode with DSC fully off.

5. Quickly press the throttle to the floor, shift at redline and 2-3 seconds after the shift release the throttle. Slow down, stop the monitor. If you want us to review your log, then upload the log to http://www.datazap.me and send us the link.

Q. I’m about to flash my car with an OTS or custom tune. What should I do before flashing?

A. Recommended upgrades include replacing spark plugs and ignition coils if they are old / worn (10k miles for plugs, 30k miles for coils). If you bought the car used and it has decent mileage and don’t know if they were changed or not, we recommend changing them for peace of mind. Extended maintenance is always required on a tuned car, far beyond what the manufacturer recommend. Change oil at least every 6-10k mls, use original BMW parts and high quality oil.

Q. I don’t have an FMIC installed on my car yet, is it safe to run one of the FMIC maps?

A. Yes, you can run one of the FMIC OTS maps, but it is recommended that you datalog, ensure the car is not knocking, and that the IAT’s and fueling remain healthy. We advise against using “one stage / step up” OTS Maps on cars without the recommended parts if using for track days and sustained aggressive driving. USE AT YOUR OWN RISK. MHD is not responsible for any damage done to your car using OTS Maps intended for modified vehicles without the recommended upgrades.

Q. Do I lose my licenses if I delete the app or the Mobile device breaks?

A. No, the licenses are stored on our server and will always be linked to your login. You can access your licenses on any Android or iOS device by using the same logi