|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
Switching from Dinan tune to MHD
|
|
08-28-2022, 01:32 PM | #1 |
New Member
6
Rep 22
Posts |
Switching from Dinan tune to MHD
Hi all,
Currently running Dinan stage 2. I have decided to bite the bullet and switch over to MHD so I can run its stage 2+. This will be my first time using MHD so I was wondering how does MHD save the current flash tune. I live in California so I will need to reflash either back to Stock or this current Dinan tune in order to pass smog. Do I need to switch back to stock tune before I flash with MHD or can I just go straight from Dinan to MHD tune? Thanks. Last edited by Milkbar; 08-28-2022 at 10:28 PM.. Reason: Changed mind |
08-29-2022, 09:11 AM | #2 |
Enlisted Member
3
Rep 32
Posts |
I tried to find the answer to this question myself. My tuner said when you return to stock tune with MHD it probably installs MHD's BMW factory tune file they use. I then contacted MHD and I almost received a clear answer. Emails with MHD below.
ME: When my car is tuned with an MHD map is actual the stock tune that’s currently in the car saved? So if I take the MHD tune out and go back to stock it my actual stock bmw tune that was in my car from new reinstalled or is it just a default stock tune that MHD has? I’m asking because if I go to the dealer and they install updated DME software to fix an issue and then I tune with MHD and than later go back to stock. Will the actual updated stock tune that the dealer just installed going to go back in the DME or will a default BMW MHD stock tune be installed? Thank you MHD response: mhd will flash back to the current software version on your car. ME: Thank you but just to confirm completely. So if bmw flashes a new stock software version and then I flash with MHD and then flash back to stock. The stock version I will now have is the new software that bmw just installed? MHD response: in most cases yes, mhd also already updated your rom to the latest so BMW did most likely just some adaptions flashes not a fully new ROM So who knows what MHD flashes back your actual stock tune that was in your car or if it installs a MHD BMW stock flash? Good luck |
Appreciate
0
|
08-30-2022, 07:55 PM | #3 | |
New Member
5
Rep 27
Posts |
Quote:
|
|
Appreciate
0
|
08-30-2022, 09:24 PM | #4 |
Brigadier General
1923
Rep 3,946
Posts |
I'm 99% sure MHD will flash a stock map rather than the Dinan again. MHD stage 2+ likely modifies more parameters than the Dinan too, so it may not be a complete override if it didn't.
Dinan tune is tied to VIN and can be reflashed free for life, just need to pay an hour labor at a shop to do it, so not the end of the world if you had to pay $100 every 2 years for a reflash |
Appreciate
0
|
08-31-2022, 11:56 PM | #5 |
New Member
6
Rep 22
Posts |
|
Appreciate
0
|
08-31-2022, 11:57 PM | #6 | |
New Member
6
Rep 22
Posts |
Quote:
|
|
Appreciate
1
whyzee1251922.50 |
09-01-2022, 10:07 PM | #7 |
New Member
6
Rep 22
Posts |
|
Appreciate
0
|
Bookmarks |
|
|