Issues with HEX Tune / Dinan Tune

[rblynn78]

All,
I am looking for some help here and I think alot of other members would be interested. I really want to go with the HEX tune as I feel it is a better tune and I love the features and VF has a solid history, nothing against them at all and they are always responsive to questions. The one downside is no warranty obviously, where Dinan comes in. I love the idea of the warranty but I feel that the Dinan isn't as good of a tune and it doesn't have the features that HEX has.

So, here is the question. I know the HEX tune has been out for about a year now and alot of you have had the tune done and are impressed by it.

1.) Has anyone had issues with tune yet that required a trip to the mechanic / BMW dealer? If so, please explain

2.) How many of you have had the car serviced with the tune and did you "turn the ECU back to stock" or leave it as is?

3.) Has anyone had a dealer see the tune and comment on your warranty?

Thanks, I think there are a lot of us sitting on the fence with this due to warranty concerns, but, if there are a lot people with this tune and no issues that are showing up, that somewhat eliminates that concern.

[4everkidd]

10% chance anyone offers any usable advice and doesn't just tell you to search...

I can't comment on the tune but I've read numerous thread and posts regarding the same. Take a look through the HEX and Bootmod3 threads and you should be able to gather the data you require.

Warranty comes down to your BMW SA and tech, and whether or not you have a catastrophic failure which leads them to looking at your flash count and prior ECU parameters.

Its a roll of the dice.

[yaymitch]

I've always had Dinan on my previous BMW's because it was an ECU flash tune but now that it isn't, I went with HEX. I've had no issues with the HEX tune that has required service and/or a mechanic. I plan to switch the file back to stock when I take it in for the scheduled maintenance. That process takes all of 5 minutes.

[euro*]

If you are afraid of loosing warranty, then this is not for you. You have to accept the consequences for tuning your ECU, doesn't matter who's tune you are using

[yaymitch]

Originally Posted by euro*

If you are afraid of loosing warranty, then this is not for you. You have to accept the consequences for tuning your ECU, doesn't matter who's tune you are using

Which tune is not for him? BMW does not warranty any tune including Dinan. Dinan offers a separate warranty in case any issues arise that BMW will not cover related to the Dinan tune.

[rblynn78]

Thank you all so far for the feedback. To be clear, I am aware of the risks, I have had tunes on all of my previous cars without issue. I am also aware the Dinan warranty is Dinan not BMW. What I am really looking for is are there notable or repeatable issues showing up with regards to the HEX tune? If the answer is no, then I am sold. Just wanted to open this up for conversation one last time before the purchase. I would also love to hear that people have gone to the dealership for service and no one ever noticed the car was tuned. Just a verification.

[NorCal f80]

I'm curious as well and how about leased cars ? can they find out if your car has been tuned ?

[jpdchicago]

Waiting for BMW to come up with their own tune. It is going to happen for sure (easy to do with turbo engine). More money for them now that dealers are moving away from Dinan.
I will go for it mainly because of the warranty. Who does not want more torque and hp?

[Pak317]

Have the hex tune and did not bother changing it back to the stock tune when I went in for service. Service advisor did not say anthing. Also haven't had any issues where i had to take the car in.

Hope that helps

[BoosTonian]

Traded my car in to a dealer..'16 M3 with hex stage 2.

Car was originally CPO'ed, then bmw revoked the CPO when the car was plugged in and they tried updating the dme with the latest software integration.

Car has a permanent "tamper code" that it throws when the ecu is cracked.

Fantastic tune though!! Much better than the jb4 I had

[Inprogress]

Originally Posted by MThree_driver

Traded my car in to a dealer..'16 M3 with hex stage 2.

Car was originally CPO'ed, then bmw revoked the CPO when the car was plugged in and they tried updating the dme with the latest software integration.

Car has a permanent "tamper code" that it throws when the ecu is cracked.

Fantastic tune though!! Much better than the jb4 I had

So you traded it in, they CPO'd it, then they revoked the CPO tag from the car? Did they reach out to you through all of this once you had traded it in?

[NorCal f80]

Originally Posted by MThree_driver

Car has a permanent "tamper code" that it throws when the ecu is cracked.

thought I read somewhere a tuner on here has resolved this

[BoosTonian]

Originally Posted by Inprogress

So you traded it in, they CPO'd it, then they revoked the CPO tag from the car? Did they reach out to you through all of this once you had traded it in?

I know people at the dealer. Bmw is cracking down on cars that have been tampered with according to the internal memo they got

[Justin.AutoTalent]

Originally Posted by rblynn78

Thank you all so far for the feedback. To be clear, I am aware of the risks, I have had tunes on all of my previous cars without issue. I am also aware the Dinan warranty is Dinan not BMW. What I am really looking for is are there notable or repeatable issues showing up with regards to the HEX tune? If the answer is no, then I am sold. Just wanted to open this up for conversation one last time before the purchase. I would also love to hear that people have gone to the dealership for service and no one ever noticed the car was tuned. Just a verification.

When the dealership plugs into your car they will immediately know, it's whether or not they choose to act on it

[chewbakam4]

Originally Posted by MThree_driver

Traded my car in to a dealer..'16 M3 with hex stage 2.

Car was originally CPO'ed, then bmw revoked the CPO when the car was plugged in and they tried updating the dme with the latest software integration.

Car has a permanent "tamper code" that it throws when the ecu is cracked.

Fantastic tune though!! Much better than the jb4 I had

Flash is so much better than a JB on its own but that sucks about the tamper code and CPO. Couldn't you flash back to stock? bootmod3 solved this just the other day and some were jumpimg on their backs saying it doesn't happen for anyone so what's the big deal?

[BoosTonian]

Originally Posted by chewbakam4

Flash is so much better than a JB on its own but that sucks about the tamper code and CPO. Couldn't you flash back to stock? bootmod3 solved this just the other day and some were jumpimg on their backs saying it doesn't happen for anyone so what's the big deal?

That's what they did. They flashed it back to stock. But in flashing back to stock, the computer read the tamper code recorded in the dme and sent that code to bmw.

When bmw reviewed it, they voided the cpo on the car.

[Hollywood Hogan]

Does a JB tune trigger any tamper codes?

[shortseller]

Originally Posted by jpdchicago

Waiting for BMW to come up with their own tune. It is going to happen for sure (easy to do with turbo engine). More money for them now that dealers are moving away from Dinan.
I will go for it mainly because of the warranty. Who does not want more torque and hp?

Agreed!

[Sleeper]

Originally Posted by jpdchicago

Waiting for BMW to come up with their own tune. It is going to happen for sure (easy to do with turbo engine). More money for them now that dealers are moving away from Dinan.
I will go for it mainly because of the warranty. Who does not want more torque and hp?

1. Enjoy the wait.

2. Enjoy paying $3500 for peak increases of 0.78 HP and 0.88TQ.

[chewbakam4]

Originally Posted by jpdchicago

Waiting for BMW to come up with their own tune. It is going to happen for sure (easy to do with turbo engine). More money for them now that dealers are moving away from Dinan.
I will go for it mainly because of the warranty. Who does not want more torque and hp?

For what 20-30hp and 5-7k and then get beat on by every other S55 out there? Waste of money to me honestly. Just man up and get a real tune or just leave the car stock and money in your pocket.

[shortseller]

[VF-Engineering]

Originally Posted by MThree_driver

Traded my car in to a dealer..'16 M3 with hex stage 2.

Car was originally CPO'ed, then bmw revoked the CPO when the car was plugged in and they tried updating the dme with the latest software integration.

Car has a permanent "tamper code" that it throws when the ecu is cracked.

Fantastic tune though!! Much better than the jb4 I had

Originally Posted by chewbakam4

Flash is so much better than a JB on its own but that sucks about the tamper code and CPO. Couldn't you flash back to stock? bootmod3 solved this just the other day and some were jumpimg on their backs saying it doesn't happen for anyone so what's the big deal?

Originally Posted by MThree_driver

That's what they did. They flashed it back to stock. But in flashing back to stock, the computer read the tamper code recorded in the dme and sent that code to bmw.

When bmw reviewed it, they voided the cpo on the car.

The 201101 Tamper Code has been discussed a few times before, but I'll address it one more time here for clarification.

HEX Tuning Software does not trigger the 201101 fault code for "DME: Protection against tampering: Program or data manipulation detected".

This has been the case since we initially released our software in May of 2015, and still remains the case today.



The issue that MThree_Driver experienced will happen with ANY brand of ECU Flash Tune when it is overwritten of re-flashed at the dealerships level.

Any current or future HEX Tuning customer who is worried about this happening is encouraged to contact us directly so that we can educate them on the pros/cons of performance software, and how to avoid the unintentional consequences of seeking power through aftermarket tuning.