[Lasha_Saakashvili]

Yesterday I logged into MHD and saw that there was a new update which required me to reflash the car with the update, at first my car started right up and everything was good, up until I parked the car for 15 minutes got back in and the car wouldn’t start, I tried everything to start the car, but I learned that only after I deleted the tune completely the car started right up.

A few hours later I did a DME unlock again and flashed the car back to the stage 2 E40 tune, and oddly the car started right up, it was only after I parked my car and tried starting it after about an hour the car wouldn’t start again, it would keep cranking but nothing until the 6th try, the car started like how a car would start in -10 degree weather barely turned on, the next day (today morning) the car started up like a champ, the next few times the car would turn on after a few tries but barely, up until I parked a car for a longer period of time and again the car wouldn’t start at all.

The only way I could turn on the car now is by just reflash it the tune there is no other way I can turn on the car, every time I reflash the tune my car starts up like a champ. I’m thinking this could be the fault of the new MHD update, has anyone experienced this issue too? If so have you guys found a solution?

[MichaelNRW]

Have you already contacted the MHD support?

[Leeg1633]

Originally Posted by MichaelNRW

Have you already contacted the MHD support?

As above. In my experience they're quick to respond

[prostcfc]

Please update with the resolution when you get one! I usually wait a bit before installing their updates.

[Lasha_Saakashvili]

After a bunch of going back And forth with them they told me try flashing the the car to stage 0 to see what happens I’m gonna try that now and will update you guys

[cyam]

Originally Posted by Lasha_Saakashvili

After a bunch of going back And forth with them they told me try flashing the the car to stage 0 to see what happens I’m gonna try that now and will update you guys

Thanks! Appreciate you testing this.

I was going to make a mod and re-flash, but will hold off.

[Lasha_Saakashvili]

Ok so a little update here, instead of flashing to stage 0, since I mentioned before that I was running an E40 map, is it possible that the car wasn’t starting because of the E? Can anyone confirm this? I know on full E85 the car struggles to start up a little but on On E40? I doubt it. Anyways, I drove the car to Empty, flilled up 93 (and flashed a 93 map ofc) now it starts up fine every time.

To add on, I really don’t see how E40 would cause my car to not start up at all, because before the update I ran E40 multiple times and my car would start up perfectly every time, and the problem occurred right after I flashed the car with the new update. So now I’m gonna test this theory, im gonna run another E40 blend most likely tomorrow, I will keep you guys posted.

[Lasha_Saakashvili]

Ok so today I did another E40 Blend and to my surprise the car won’t start on the E40 map so now I have no other choice but to drive around with E40 in my tank with a 93 tune and I still don’t know what to do because MHD has yet to resolve this issue.

[cyam]

Just curious, what spark plugs and gap are you running? Ethanol blend are harder to start and need a colder plug with smaller gap.

I have heard with the wrong plugs and/ or gap it may not start at all

Not saying this is your issue, but something to check.

Regardless, if it stated fine before the MHD update, I'm a bit baffled why it's an issue now. I'm sure MHD will figure something.

[Lasha_Saakashvili]

Spark plugs were done by my dealer, so most likely the OEM ones, although I’m not sure what gap means, but I doubt it has anything to do with that because as I mentioned car starts up fine when it’s on 93 map even if I have a E40 blend in the car and it won’t start at all when it’s on E40 map.

[Rdurty2]

It’s not an issue with parts so do not go down that road. It’s clearly something wrong with the update from MHD. Unfortunately you will need to wait for them to figure it out.

The car was perfectly fine before the update and post update has issues. 100% some bug with the update.

There is no way to go back to the pre-update version?

[Lasha_Saakashvili]

Oh I haven’t even thought of that, you’re a genius! let me try thanks!!!

[cyam]

Originally Posted by Lasha_Saakashvili

Spark plugs were done by my dealer, so most likely the OEM ones, although I’m not sure what gap means, but I doubt it has anything to do with that because as I mentioned car starts up fine when it’s on 93 map even if I have a E40 blend in the car and it won’t start at all when it’s on E40 map.

Ah, yes, if it was fine before then it isn't that. As it's been suggested, it'd be the software. I am surprised MHD haven't given any advice.

I had an issue where my car wouldn't start, I was getting a fuel pump initialization error after I did a MHD update. MHD said they could fix it and offered to remote login to my car and sort it out. Car was under warranty and dealer fixed the issue so it was a mute point. But MHD were there to help very quickly.

[RTPenland]

Originally Posted by Rdurty2

There is no way to go back to the pre-update version?

If you unlocked with the mission m-link, then yes; otherwise, no.

[Rdurty2]

Originally Posted by RTPenland

If you unlocked with the mission m-link, then yes; otherwise, no.

But it was an MHD update. I’m sure they could just provide him with the previous version.

It’s not idrive that was updated.

[RTPenland]

Originally Posted by Rdurty2

But it was an MHD update. I’m sure they could just provide him with the previous version.

It’s not idrive that was updated.

Yes I agree, sorry if I wasn't as clear as I could have been. My point was simply that with the m-link (and a super unlock license) you can take snap shots of your DME at any time and restore to that point in time at will. So regardless of what flash you are running or where an update may come from you have a point in time you can always go back to. Just like a restore point on your iphone etc...

It's a nifty little feature

[B58.Dz]

Originally Posted by Lasha_Saakashvili

Yesterday I logged into MHD and saw that there was a new update which required me to reflash the car with the update, at first my car started right up and everything was good, up until I parked the car for 15 minutes got back in and the car wouldn’t start, I tried everything to start the car, but I learned that only after I deleted the tune completely the car started right up.

A few hours later I did a DME unlock again and flashed the car back to the stage 2 E40 tune, and oddly the car started right up, it was only after I parked my car and tried starting it after about an hour the car wouldn’t start again, it would keep cranking but nothing until the 6th try, the car started like how a car would start in -10 degree weather barely turned on, the next day (today morning) the car started up like a champ, the next few times the car would turn on after a few tries but barely, up until I parked a car for a longer period of time and again the car wouldn’t start at all.

The only way I could turn on the car now is by just reflash it the tune there is no other way I can turn on the car, every time I reflash the tune my car starts up like a champ. I’m thinking this could be the fault of the new MHD update, has anyone experienced this issue too? If so have you guys found a solution?

I’m experiencing the exact same thing, I just flashed stage 2 E40 on a 2021 x3m40i on Friday 09/27/2024 and car starts up fine but after a few starts won’t start up at all unless I reflash the exact same tune . Messaged MHD about it and they said could be battery but it’s brand new . I’m about. 3/4 tank at the moment trying to run it down and get more 91 in it to run the Stage 2 91 map . The first time it wouldn’t start I flashed to stock and it cranked up immediately with no issue .

[ichigom340i]

Originally Posted by B58.Dz

I’m experiencing the exact same thing, I just flashed stage 2 E40 on a 2021 x3m40i on Friday 09/27/2024 and car starts up fine but after a few starts won’t start up at all unless I reflash the exact same tune . Messaged MHD about it and they said could be battery but it’s brand new . I’m about. 3/4 tank at the moment trying to run it down and get more 91 in it to run the Stage 2 91 map . The first time it wouldn’t start I flashed to stock and it cranked up immediately with no issue .

Had the same thing happen also stage 2 e40 I ended up flashing to stock then after that I flashed the multi map stage 2 for a while flashed the multi map stage 1 cause I took my catless dp to stock one and have been run that and have not had that issue. 2020 m340i

[Lasha_Saakashvili]

Yup did the same thing, flashed to a multi and didn’t have any issues after that, but MHD swore that there was nothing wrong with the tune and I wasn’t blending the E properly 😂

[Kvrazo]

Ever since MHD version 4.68 released and I update my stage 2 e40 tune I keep getting trouble code 21A026 and an extended crank every time I start my vehicle. When switching back to the 91 stage 2 tune my car starts up right away. I’ve tried using different e85 stations and still get the same code every time I start my car. So this seems to be a new issue only when running stage 2 e40? I emailed MHD to see if they say anything but after reading this sub I doubt they’ll do anything

[Lasha_Saakashvili]

They aren’t gonna do anything they are just gonna try to sell you their E85 kit and tell you that you aren’t blending correctly, try flashing a multi map stage 2 and it should fix that.

[Kvrazo]

Just flashed it rn. It looks like it works. Thanks man