4000+ Vehicles Tuned Every Month
 UK’s Largest ECU Remapping Service
 24/7 Automated File Service

Frequently Asked Questions

Absolutely not! Use of the Quantum brand is the sole right of an appointed Quantum branded dealer and must not be used by a 24/7 Files registered file customer. We have a single strike policy in this regard and any breach will result in account termination.

Quantum Files on Demand – or QFoD – is the first and only automated file processing system that automatically processes your original ECU read, matching it to tried and tested modified file calibrations including options for DPF, EGR, NSL, etc. You will receive a custom and professionally tested tuned file in minutes.

Our quite brilliant file autoresponder is a sophisticated system that provides proven modified files twenty-four hours a day, seven days a week.

The technical team have decades of real experience behind them, and can guide you through all aspects of doing the remap, help with any difficulties and support when working with unfamiliar vehicles and processes.

When contacting support, please include all relevant vehicle details such as registration number, make, model, engine type and size, year of manufacture, etc. We are always here to help, but there is an equal level of expectation that you will investigate problems yourself to begin with by using the QVRM and tools available to you – which has the added benefit of building your own knowledge and experience.


The files team are on hand to answer any files queries you have, whether it’s information before doing the file, or helping resolve issues, or changes you require.


We have a ticketing support system, combined with an online chat for direct contact with any of the support team. You can raise a ticket by logging into www.247files.co.uk or sending an email to support@247files.co.uk


A substantial amount of information is available to dealers, including an extended vehicle lookup called the QVRM, which includes lots of technical information and tips. The QVRM can be accessed through QFod.

We have a team of 9 file writers who are the absolute core of our business, and they are targeted to provide quality and service standards that are second to none. Unlike most of our competitors, we have invested in our files team, so that we have plenty of staff and you are not relying on one highly-stressed individual.

Once your file has been uploaded to 247files.co.uk, you can track its progress – which includes seeing who is carrying out the work. File turnaround for manual files is dependent on the current workload and how complex it is, and queries and requests inevitably lead to a longer return time. A file taken from a common vehicle will be returned to you within a few minutes, whilst those that require further customisation will take up to fifteen minutes. We will let you know if there is likely to be an unusually long delay.


Your selection from the following parameters - when applicable and available. One file equates to one credit and is all-inclusive, with no hidden extras.

  • Quantum Stage 1 - all vehicles with standard parts with choice of Blue/Red/Green
  • Quantum Stage 2 - upgraded air filters
  • Quantum Stage 2 - de-cat/sports catalysts
  • Quantum Stage 3 - upgraded intercoolers
  • Quantum Stage 3 - upgraded full exhaust systems
  • DPF solutions and codes
  • EGR shut + EGR removal solutions and codes
  • SCR / DEF / AdBlue Disable and codes (costs 2 file credits)
  • Any MIL Codes which are related to Engine ECU e.g. Pxxxx DFxxxx
  • DSG Tune
  • Swirl Flap removal with MIL codes supplied
  • Speed limiter off for car and LCV’s
  • Rear lambda/rear O2 deletes for gasoline engines
  • BMW/Mini Dashboard sports display recalibration
  • Original files - if the ECU is tuned by a non- Quantum file and requires returning to original. If Quantum tuned file, then F.O.C.
  • Checksum correction included if requested
  • ECU cloning assistance
  • Alternative fuel vehicles - LPG - CNG - Bioethanol

We won’t make any judgements on whether the deletion of a non-tuning MIL code is safe for the vehicle. As a motor industry professional, with the vehicle in front of you, it is your decision. If you have any doubts, don’t do it.

Bear this example in mind: a vehicle making 50hp less than it should because of a broken throttle body will still make 50hp less when tuned along with a code delete. Removing non-tuning MIL codes is not a way to fix cars, so use wisely.

Outside our all-inclusive file service, we offer an un-wrap and re-wrap for external services. Again, this is just one file credit for a single un-wrap/re-wrap cycle.

This an unwrapping/rewrapping service only: please don’t ask us to inspect or analyse another provider’s work.

We understand that some files will require a redo for legitimate tuning purposes, occasionally for an omission on the file which will be free-of-charge. However, trying to repair a vehicle suffering from multiple problems through file tuning often ends up with endless attempts to try and fix it, with more and more codes being produced. This scenario requires further chargeable uploads.

There is great confusion about custom and generic files. Some of our more minor competitors use the word “custom” to describe what they offer without actually knowing what it means… so here are the definitions:

A generic file is one that has a tried and tested calibration created by a file writer who understands the ECU strategy. There is no need to change it, and it will have been successfully applied to thousands of vehicles with the same ECU. Should we receive a new original from an ECU of the same type, running the same strategy, the modification we apply is still deemed as a generic file.

A custom file is NOT created by changing the modifications of a generic file; rather, it is a conversion carried out with the car on a dyno, being mapped precisely to the customer’s instructions and based on hardware changes that require a different level of tune. Anyone who offers “custom tuning files” without a dyno is misrepresenting the term and should be avoided.

In the very rare instances of something going wrong, the priority is for the dealer to satisfy the customer, manage the situation, and see it through to a satisfactory conclusion. If the problem has been caused by a faulty tuning tool the responsibility rests with the manufacturer of that tool – but be aware that they are very unlikely to cover any costs.

In the even rarer instances of it being our fault we will aim to sort out the issue fairly, but this does not include consequential expenses, such as car hire. Our team will do whatever they can to resolve problems, but it should be noted that we do not underwrite dealer errors, tool failure, poor service record, etc.

Issues arising from programming via OBD are rare, with permanent errors few and far between. If something does go wrong, it is normally as a result of one of the following causes:

  • Low battery voltage
  • Accidental removal of the OBD lead
  • PC problems such as laptop battery running to empty, virus scans, entering sleep mode, or a screen saver activating
  • Voltage spike from opening or closing the vehicle door
  • Tool protocol error, a faulty tool, or using a cloned tool
  • File error – though this is very rare and normally causes poor running rather than the vehicle not being able to crank

Most bench conversions are completed without any problems, but there are more dangers when programming in this way when compared to doing it via OBD. These include:

  • Damage to the ECU or wiring loom when removing the ECU from the vehicle
  • Damage to the ECU when removing the lid
  • Damage to the ECU when soldering link or boot wires (overheating components, excess solder, etc)
  • Damage to ECU when removing link or boot wires (overheating components, lifting pads or tracks, excess solder, etc)
  • Faulty or corrupt mod file (unlikely to cause a permanent fault)
  • Faulty protocols
  • Faulty tool or damaged connectors
To reduce the risks involved with bench programming, always read the tool protocol instructions: even if it’s a vehicle type you are familiar with and have programmed before, tool protocols are regularly updated.

All credits purchased are valid for one year.

We really appreciate it if payments are made by debit card, as charges levied on us for credit card or PayPal transactions are substantial.

Despite new rules that we can no longer pass on the cost of charge-back credit card fees, please note that some commercial cards have retained the right to automatically charge a certain percentage, which is outside of our control.

Clone tools are illegal and are not supported by Quantum. If you chose to use a clone tool surreptitiously then this is entirely at your risk if something goes wrong and no further support will be available.

We treat everyone with respect and expect the same and build relationships with our dealer channel. In some instances, we will no longer be prepared to supply you files and will therefore terminate their account. For this to occur there needs to have been a serious breech of our policies which cannot be resolved; or for non-payment of an account; sharing of confidential data such as VRM access; or abusive behaviour.