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Remote coding

Some electronics jobs don't need anyone to travel: all it takes is for the car to be connected at your garage and for us to be able to reach it over the internet. Here we explain what needs to be on your end of the cable for it to go well.

In short

Remote coding is a service for garages: you connect the vehicle to a diagnostic interface and to a computer with internet access at your garage, and we connect remotely to code, adapt, activate features or program a control unit live. It differs from the file service in that no files are exchanged: the work is done on the car, in real time. To do it safely you need a stable connection, a battery maintainer that holds the voltage for the whole session and someone beside the vehicle. It isn't suitable for jobs that require opening a control unit. Price on request, and before each session we confirm that the job can be done remotely.

Remote coding or file service: how they differ

Both let your garage offer electronics jobs without having to develop them yourself. The difference lies in what travels over the internet:

Remote codingFile service
What travelsThe working session: we connect to your equipment liveA file: you send us the original and we return the modified one
When it's doneAt the agreed time, with the car connectedWhen we receive the file; you write it afterwards
Tool you needDiagnostic interface and a computer with internet accessECU read/write tool
Who writes to the carUs, remotelyYou
Typical jobsCoding, adaptations, activations, programming unitsECU remaps, custom functions, back to stock

If what you want is to remap an engine and you have a reading tool, see the file service.

What needs to be at your garage

Before connecting

Interface
The one we specify for that vehicle, connected to the diagnostic socket
Computer
With the remote access program installed and no other heavy tasks running
Internet
Stable, preferably wired rather than wifi; no mobile hotspots
Battery
A maintainer or power supply that holds the voltage for the whole session
Vehicle
With the ignition accessible, doors closed if the job requires it and no electrical loads switched on
One person
Beside the car for the whole session, with a phone to hand

Why the battery matters more than anything

Programming a control unit means writing to its memory. If, halfway through writing, the voltage drops below what the unit needs, the write may be left unfinished and the control unit may not start. With the ignition on and the fan, radio or lights running, a battery that seems fine drains faster than you think.

That is why a charged battery or a clamp-on jump starter isn't enough: you need a maintainer or power supply that delivers current continuously and steadily for as long as the job lasts. If you don't have one, tell us beforehand and we will look at it.

What can be done remotely and what can't

JobRemotely?Why
Coding a new or replacement unitUsually yesIt is done through the diagnostic socket
Adaptations after a repair (gearbox, injectors, sensors)Usually yesThey are guided diagnostic routines
Activating hidden features the car already hasIf the equipment is fittedSee VAG activations
Programming keysDepends on the immobiliserSome systems require a unit to be read or opened
Bench or boot-mode readsNoThe control unit has to be removed and opened
Cloning a control unitNoBoth units need to be on the workbench
Repairing an instrument clusterNoIt is hands-on electronics work

What can't be done remotely we sort out by coming to your garage or at our workshop.

How a session is organised

  1. You message us beforehand

    vehicle, VIN, the job you want and the interface you have. We confirm whether it can be done remotely.

  2. We tell you what to prepare

    interface, access program and power supply, and the price.

  3. We agree the time

    the session is booked by WhatsApp or phone 48 hours in advance, within our hours (Monday to Friday, 8:00–14:00 and 16:00–19:30 (closed on Saturday and Sunday)), with the car already at your garage and the person who will be beside it.

  4. You prepare the vehicle

    maintainer connected, interface plugged in, computer with access open.

  5. Session

    we read faults, do the job and ask you for any actions needed on the car.

  6. Check

    we clear codes generated during the job, check everything works and close the access.

Price

Remote coding is price on request, depending on the vehicle and the job. We give you the price when we confirm the session. We invoice in your garage's name.

Message us with the vehicle, the job and the interface you have. We will tell you whether it can be done remotely, what you need and the price.

Reviewed on .

Common questions

Frequently asked questions

Which interface do I need exactly?

It depends on the vehicle and the job. When you message us with the make, model, year and what you want to do, using the most common equipment and software on the market, we tell you which interface and which remote access program are needed and whether what you have at your garage will do.

Can I leave the car connected and go?

No. During the session someone has to be beside the vehicle: some steps require switching the ignition on or off, checking a warning light or pressing a remote fob, and if something goes wrong you have to react there and then.

What happens if the internet drops halfway through programming?

Don't disconnect anything or switch off the ignition: call us on 641 125 798. Many programming jobs can be resumed if the control unit is still powered and connected. That is why we insist so much on a wired connection and a battery maintainer.

Can a key be programmed remotely?

On some systems yes and on others no, because some immobilisers require a unit to be read or opened. Tell us the vehicle and we will confirm; if it can't be done, we do it by coming to you or at the workshop. More under keys.

Is it any use if my garage is outside the Community of Madrid?

Remote coding reaches garages in the Community of Madrid and also in nearby areas. If you are close by, message us and we will look into it.

Keep reading

You may also find useful

File service

You read the ECU at your garage, send us the original and we return the modified file ready to write.

Garages

The electronics work your garage doesn't do, without the customer ever leaving your hands.

VAG activations

Features your Volkswagen, Audi, Seat, Cupra or Skoda comes with from the factory but switched off.

Keys

Copy, new key or all keys lost: transponder, remote fob and immobiliser.

No-obligation quote

Let's talk about your car

Tell us the make, model, engine and year. We reply with what can be done and the price before we start, at the workshop in Alcalá de Henares or wherever the vehicle is within the Community of Madrid.

Mobile and WhatsApp641 125 798