DervTech remote tuning review

DervTech Tuning LTD are ECU calibration specialists based in North West England; offering in-house (on our chassis dyno) and remote tuning options for most BMW/MINI models. We are responsible for some of the fastest B58 & N55 powered (Mx40i/Mx35i) vehicles in the country, and pride ourselves in ensuring your vehicle drives, and performs exactly as it should.

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dailydoggy
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Re: DervTech remote tuning review

Post by dailydoggy »

williams wrote:
Sat Feb 16, 2019 11:07 am
dailydoggy wrote:
Sat Feb 16, 2019 10:06 am
williams wrote:
Fri Feb 15, 2019 5:03 pm


You have the software to flash it yourself and I have kept original map, so if my car needs to go in for servicing or any work I'll flash standard map on, then reflash tune on when I get it back.

Whole process of flashing maps takes about 20-30 mins from getting in your car to being able to start it and drive away.

Does not erase the flash count and the enhanced engine sensors data which is recorded and stored by the other modules thruout the car, is first thing BMW checks when submitted for any engine warranty work these days my missus bezzy mate works at the BMW dealership first thing they do is plug in and check the data log..
The flash count is reset with the software.
Believe that you will believe anything mate,most mappers tell you as much as you need to hear without giving any solid or written guarantees whatsoever that their maps are dealer undetectable or just the surround the question with flannel..

Your choice and risk in the end though, but rule of thumb no remap at all is undetectable especially if the car is remoted and linked to BMW headquarters, it's just some are far easier and much dumber and basic to detect..Unless your remote remap has disabled engine data logging (ironic but which in itself is a giveaway) then your car will always record it's remapped because of the abnormal and none standard boost and fuel pressures etc etc data recorded by sensors and logged by the car in various other modules inc the key...

Not against mapping but dealers are seeing tenfold increase in mapped and none standard cars these days so if you are in warranty it's your choice and your risk in the end all i am saying.. if your engine suffers a serious or expensive failure your dead in the water basically, basic stuff they hardly care as mentioned it's easy none queried warranty work but they still check though at least at the dealer where i live..
340BHP, manual shift ,£140 tax!!Got wood! :drive:

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williams
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Re: DervTech remote tuning review

Post by williams »

dailydoggy wrote:
Sat Feb 16, 2019 11:15 am
williams wrote:
Sat Feb 16, 2019 11:07 am
dailydoggy wrote:
Sat Feb 16, 2019 10:06 am



Does not erase the flash count and the enhanced engine sensors data which is recorded and stored by the other modules thruout the car, is first thing BMW checks when submitted for any engine warranty work these days my missus bezzy mate works at the BMW dealership first thing they do is plug in and check the data log..
The flash count is reset with the software.
Believe that you will believe anything mate,most mappers tell you as much as you need to hear without giving any solid or written guarantees whatsoever that their maps are dealer undetectable or just the surround the question with flannel..

Your choice and risk in the end though, but rule of thumb no remap at all is undetectable especially if the car is remoted and linked to BMW headquarters, it's just some are far easier and much dumber and basic to detect..Unless your remote remap has disabled engine data logging (ironic but which in itself is a giveaway) then your car will always record it's remapped because of the abnormal and none standard boost and fuel pressures etc etc data recorded by sensors and logged by the car in various other modules inc the key...

Not against mapping but dealers are seeing tenfold increase in mapped and none standard cars these days so if you are in warranty it's your choice and your risk in the end all i am saying.. if your engine suffers a serious or expensive failure your dead in the water basically, basic stuff they hardly care as mentioned it's easy none queried warranty work but they still check though at least at the dealer where i live..
Im doing an oil change in between the bmw recommended just to give me that little extra piece of mind, service intervals on these are way too long I think.

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Re: DervTech remote tuning review

Post by jammapic »

dailydoggy wrote:
Sat Feb 16, 2019 11:15 am

Believe that you will believe anything mate,most mappers tell you as much as you need to hear without giving any solid or written guarantees whatsoever that their maps are dealer undetectable or just the surround the question with flannel..
I am not completely sure that is fair... I have given a very honest breakdown above of how this works; and what’s done.. I’ve explained it’s very difficult for the dealer to see (nor do they usually care!) and I’ve explained that you need to take into consideration there’s always a ‘what if’ and the fact that you shouldn’t commit warranty fraud.

We can’t do much else - it’s not our car, nor our decision to make!

JP @ DervTech
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ECU Tuning Specialists - M140i / M240i (B58)
On Dyno Tuning in Manchester
Remote ECU Tuning Packages delivered to your door - WORLDWIDE!
www.DervTech.com | www.facebook.com/DervTech | 07399 956832

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williams
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Re: DervTech remote tuning review

Post by williams »

dailydoggy wrote:
Sat Feb 16, 2019 11:15 am
williams wrote:
Sat Feb 16, 2019 11:07 am
dailydoggy wrote:
Sat Feb 16, 2019 10:06 am



Does not erase the flash count and the enhanced engine sensors data which is recorded and stored by the other modules thruout the car, is first thing BMW checks when submitted for any engine warranty work these days my missus bezzy mate works at the BMW dealership first thing they do is plug in and check the data log..
The flash count is reset with the software.
Believe that you will believe anything mate,most mappers tell you as much as you need to hear without giving any solid or written guarantees whatsoever that their maps are dealer undetectable or just the surround the question with flannel..

Your choice and risk in the end though, but rule of thumb no remap at all is undetectable especially if the car is remoted and linked to BMW headquarters, it's just some are far easier and much dumber and basic to detect..Unless your remote remap has disabled engine data logging (ironic but which in itself is a giveaway) then your car will always record it's remapped because of the abnormal and none standard boost and fuel pressures etc etc data recorded by sensors and logged by the car in various other modules inc the key...

Not against mapping but dealers are seeing tenfold increase in mapped and none standard cars these days so if you are in warranty it's your choice and your risk in the end all i am saying.. if your engine suffers a serious or expensive failure your dead in the water basically, basic stuff they hardly care as mentioned it's easy none queried warranty work but they still check though at least at the dealer where i live..
If you Google the software used it also explains on their website everything to software does. Dervtech haven't told me anything that isn't explained on the software manufacturers website.

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williams
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Re: DervTech remote tuning review

Post by williams »

Had a 40 mile drive of it today with the map on, wife and kids were in the car so wasn't a flat out drive.

But even at part throttle the boost feels like it comes in a lot harder and throttle response seems a lot sharper.

If weather keeps up like it is I'll be taking the winters off end of week so hopefully I'll get better traction with mpss on.

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dailydoggy
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Re: DervTech remote tuning review

Post by dailydoggy »

Like i said it's your car your choice in the end but have a read of this it's a good read regarding rumbled remaps and a live ISTA connection to BMW AG, PUMA etc and the potential for a car to be black balled and flagged by BMW...

Dude was unlucky somewhat though being sold the car in the first place by BMW aswell...


https://forums.m3cutters.co.uk/archive/ ... 95873.html
340BHP, manual shift ,£140 tax!!Got wood! :drive:

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ninja_geezer
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Re: DervTech remote tuning review

Post by ninja_geezer »

dailydoggy wrote:
Sat Feb 16, 2019 4:05 pm
Like i said it's your car your choice in the end but have a read of this it's a good read regarding rumbled remaps and a live ISTA connection to BMW AG, PUMA etc and the potential for a car to be black balled and flagged by BMW...

Dude was unlucky somewhat though being sold the car in the first place by BMW aswell...


https://forums.m3cutters.co.uk/archive/ ... 95873.html
yes but im guessing BMW can only not honour the engine /drivetrain warranty.if it was something else thats not connected to this then you should be ok.
Current: 2018 M240i Auto, Alpine white,Coral Red Leather,Heated Seats ,Reversing Camera,Pro Media,Harman Kardon,MPE,Rear Diffuser.Autoid M4 Syle Rear spoiler.Shuttergang Carbon Mirror Caps.M Performance Side Decals.
Previous: 2016 Golf R DSG

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dailydoggy
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Re: DervTech remote tuning review

Post by dailydoggy »

ninja_geezer wrote:
Sat Feb 16, 2019 4:25 pm
dailydoggy wrote:
Sat Feb 16, 2019 4:05 pm
Like i said it's your car your choice in the end but have a read of this it's a good read regarding rumbled remaps and a live ISTA connection to BMW AG, PUMA etc and the potential for a car to be black balled and flagged by BMW...

Dude was unlucky somewhat though being sold the car in the first place by BMW aswell...


https://forums.m3cutters.co.uk/archive/ ... 95873.html
yes but im guessing BMW can only not honour the engine /drivetrain warranty.if it was something else thats not connected to this then you should be ok.
Yup unrelated stuff is fine Motech mod these cars (not engine and trans DME alteration though) from the dealer and they retain BMW warranty but with a waiver on the none stock parts i think...

As mentioned it's usually only serious or expensive engine and drivetrain stuff you could lose your shirt on if it goes FUBAR...

There is an M4 post somewhere on the net i read a bit back the dude had his engine and DCT remapped and the DCT grenaded and BMW refused to replace the DCT transmission as it had been seriously altered in the software. The cost of a DCT tranny is absolutely eye watering i would of thrown up...

I don't think i could live with a snorting true modern day M car these days out of any kind of warranty everything is 5 figures on the drivetrain...
340BHP, manual shift ,£140 tax!!Got wood! :drive:

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Re: DervTech remote tuning review

Post by Blitzen »

dailydoggy wrote:Like i said it's your car your choice in the end but have a read of this it's a good read regarding rumbled remaps and a live ISTA connection to BMW AG, PUMA etc and the potential for a car to be black balled and flagged by BMW...

Dude was unlucky somewhat though being sold the car in the first place by BMW aswell...


https://forums.m3cutters.co.uk/archive/ ... 95873.html
Why is this always brought up? Some people seem to have to urge ....
Flashing back to stock / reset flash counter to pre-flash is just there to get you through dealer visits without raised eyebrows. If you break a water pump during warranty they will not raise an eyebrow .... if you blow up the engine and transmission they will get the BMW experts involved and deny warranty (no doubt).
Tuning always was at your own risk (which normally is pretty small).


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Re: DervTech remote tuning review

Post by ninja_geezer »

jammapic wrote:
Sat Feb 16, 2019 12:10 pm
dailydoggy wrote:
Sat Feb 16, 2019 11:15 am

Believe that you will believe anything mate,most mappers tell you as much as you need to hear without giving any solid or written guarantees whatsoever that their maps are dealer undetectable or just the surround the question with flannel..
I am not completely sure that is fair... I have given a very honest breakdown above of how this works; and what’s done.. I’ve explained it’s very difficult for the dealer to see (nor do they usually care!) and I’ve explained that you need to take into consideration there’s always a ‘what if’ and the fact that you shouldn’t commit warranty fraud.

We can’t do much else - it’s not our car, nor our decision to make!

JP @ DervTech
do you use something to hide the fact that the ecu has been flashed or do you use some find of patch to stop the counter ?
Current: 2018 M240i Auto, Alpine white,Coral Red Leather,Heated Seats ,Reversing Camera,Pro Media,Harman Kardon,MPE,Rear Diffuser.Autoid M4 Syle Rear spoiler.Shuttergang Carbon Mirror Caps.M Performance Side Decals.
Previous: 2016 Golf R DSG

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dailydoggy
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Re: DervTech remote tuning review

Post by dailydoggy »

Blitzen wrote:
Sat Feb 16, 2019 9:57 pm
dailydoggy wrote:Like i said it's your car your choice in the end but have a read of this it's a good read regarding rumbled remaps and a live ISTA connection to BMW AG, PUMA etc and the potential for a car to be black balled and flagged by BMW...

Dude was unlucky somewhat though being sold the car in the first place by BMW aswell...


https://forums.m3cutters.co.uk/archive/ ... 95873.html
Why is this always brought up? Some people seem to have to urge ....
if you blow up the engine and transmission they will get the BMW experts involved and deny warranty (no doubt).
Tuning always was at your own risk (which normally is pretty small).


Sent from my iPhone using Tapatalk
Dude on m3cutters had no such engine or transmission serious failure or issue , more about whether the dealer for various other reasons than mechanical failures live links your car to BMW AG or not, and your done like the above dude in the link with no serious engine failure just a totally innocent query and an oblivious dealer...

The live ISTA linking at dealers on these modern cars has to be taken onboard when making your tuning decisions it's better to be informed than ignorant on such things..
340BHP, manual shift ,£140 tax!!Got wood! :drive:

Blitzen
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Re: DervTech remote tuning review

Post by Blitzen »

dailydoggy wrote:
Blitzen wrote:
Sat Feb 16, 2019 9:57 pm
dailydoggy wrote:Like i said it's your car your choice in the end but have a read of this it's a good read regarding rumbled remaps and a live ISTA connection to BMW AG, PUMA etc and the potential for a car to be black balled and flagged by BMW...

Dude was unlucky somewhat though being sold the car in the first place by BMW aswell...


https://forums.m3cutters.co.uk/archive/ ... 95873.html
Why is this always brought up? Some people seem to have to urge ....
if you blow up the engine and transmission they will get the BMW experts involved and deny warranty (no doubt).
Tuning always was at your own risk (which normally is pretty small).


Sent from my iPhone using Tapatalk
Dude on m3cutters had no such engine or transmission serious failure or issue , more about whether the dealer for various other reasons than mechanical failures live links your car to BMW AG or not, and your done like the above dude in the link with no serious engine failure just a totally innocent query and an oblivious dealer...

The live ISTA linking at dealers on these modern cars has to be taken onboard when making your tuning decisions it's better to be informed than ignorant on such things..
And they didn’t deny any warranty claim (as he didn’t have one). If the claim would be related to the paintwork they would honor the warranty.
As said flashing back to stock and resetting the counter would prevent premature worry and upset.


Sent from my iPhone using Tapatalk

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dailydoggy
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Re: DervTech remote tuning review

Post by dailydoggy »

Blitzen wrote:
Sun Feb 17, 2019 12:32 pm
dailydoggy wrote:
Blitzen wrote:
Sat Feb 16, 2019 9:57 pm


Why is this always brought up? Some people seem to have to urge ....
if you blow up the engine and transmission they will get the BMW experts involved and deny warranty (no doubt).
Tuning always was at your own risk (which normally is pretty small).


Sent from my iPhone using Tapatalk
Dude on m3cutters had no such engine or transmission serious failure or issue , more about whether the dealer for various other reasons than mechanical failures live links your car to BMW AG or not, and your done like the above dude in the link with no serious engine failure just a totally innocent query and an oblivious dealer...

The live ISTA linking at dealers on these modern cars has to be taken onboard when making your tuning decisions it's better to be informed than ignorant on such things..
And they didn’t deny any warranty claim (as he didn’t have one). If the claim would be related to the paintwork they would honor the warranty.
As said flashing back to stock and resetting the counter would prevent premature worry and upset.


Sent from my iPhone using Tapatalk
Long as it is not live linked and not serious stuff your probably OK...

If the car is live linked to BMW AG though for any reason (does not have to be drive train related) dealer could just query ABS system or anything at all with BMW HQ .Read it all his car is effectively flagged and tagged and the warranty is compromised by BMW AG not the dealer...

Makes you wonder though when you are buying second hand though what you are buying though stock or altered and then coming a cropper at the dealers via an innocent query by a dealer later like the m3cutters dude..
340BHP, manual shift ,£140 tax!!Got wood! :drive:

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Re: DervTech remote tuning review

Post by jammapic »

ninja_geezer wrote:
Sun Feb 17, 2019 8:40 am
jammapic wrote:
Sat Feb 16, 2019 12:10 pm
dailydoggy wrote:
Sat Feb 16, 2019 11:15 am

Believe that you will believe anything mate,most mappers tell you as much as you need to hear without giving any solid or written guarantees whatsoever that their maps are dealer undetectable or just the surround the question with flannel..
I am not completely sure that is fair... I have given a very honest breakdown above of how this works; and what’s done.. I’ve explained it’s very difficult for the dealer to see (nor do they usually care!) and I’ve explained that you need to take into consideration there’s always a ‘what if’ and the fact that you shouldn’t commit warranty fraud.

We can’t do much else - it’s not our car, nor our decision to make!

JP @ DervTech
do you use something to hide the fact that the ecu has been flashed or do you use some find of patch to stop the counter ?

Both. The flash tools we use here, and the remote tools will correct the checksum, so it matches that of which the dealer is expecting, and also reset the flash counter.

When you flash back to stock, or flash a tune in this process is followed.
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ECU Tuning Specialists - M140i / M240i (B58)
On Dyno Tuning in Manchester
Remote ECU Tuning Packages delivered to your door - WORLDWIDE!
www.DervTech.com | www.facebook.com/DervTech | 07399 956832

Blitzen
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Re: DervTech remote tuning review

Post by Blitzen »

dailydoggy wrote:
Blitzen wrote:
Sun Feb 17, 2019 12:32 pm
dailydoggy wrote: Dude on m3cutters had no such engine or transmission serious failure or issue , more about whether the dealer for various other reasons than mechanical failures live links your car to BMW AG or not, and your done like the above dude in the link with no serious engine failure just a totally innocent query and an oblivious dealer...

The live ISTA linking at dealers on these modern cars has to be taken onboard when making your tuning decisions it's better to be informed than ignorant on such things..
And they didn’t deny any warranty claim (as he didn’t have one). If the claim would be related to the paintwork they would honor the warranty.
As said flashing back to stock and resetting the counter would prevent premature worry and upset.


Sent from my iPhone using Tapatalk
Long as it is not live linked and not serious stuff your probably OK...

If the car is live linked to BMW AG though for any reason (does not have to be drive train related) dealer could just query ABS system or anything at all with BMW HQ .Read it all his car is effectively flagged and tagged and the warranty is compromised by BMW AG not the dealer...

Makes you wonder though when you are buying second hand though what you are buying though stock or altered and then coming a cropper at the dealers via an innocent query by a dealer later like the m3cutters dude..
There must be more to the story as why did the dealer dig so deep. A wild guess is that the car was flagged before (when it was running the tune) and that flag got the dealer to dig deeper/ contact the mother ship.
For a normal software update they would not waste time digging around trying to find any evidence


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