BMW software, built in a working workshop

Fix the real fault. Not the guess.

I'm building AI-assisted diagnostic and coding software for BMWs — for owners who like to work on their own car, and for the specialists who do it every day. Workshop knowledge and AI, in your own language.

Join the waitlistGet E-Series Switch, free
  • E-series first
  • Tested on real BMW data
  • Backups before every write

Diagnostic session · E90 325i · N52

  1. 29E0

    Fault memory · DME

    Mixture control, bank 1: too lean

  2. Lean on one bank only. Before replacing anything, read the mixture adaptation for both banks — at idle and at a steady 2,500 rpm.

  3. Bank 1 additive is high at idle, normal at 2,500. Bank 2 looks normal.

  4. Lean at idle, corrected under load, one bank only: most likely unmetered air on the cylinder 1–3 side, rather than injectors or O₂ sensors. Next: smoke test the intake, starting at the manifold gasket.

  5. Next test: smoke test, intake side
Illustrative concept of the AI assistant. Not final UI.
Why BimmerDock

I see the same problems in the workshop every week.

BimmerDock software exists because of real cars and real customers, not a market report.

01

The tools are stuck in the past

Deep work on E-series cars still means INPA, WinKFP, NCS Expert and friends: separate programs, cryptic config files, poor support on modern laptops — and one wrong step can leave a module unresponsive.

02

Real specialists are rare

In Hungary and across the region there are very few people who truly understand these cars. Owners wait weeks, drive hours, or end up with someone who is guessing.

03

Owners pay for guesses

Without clear information, a fault code turns into a parts list. I regularly see cars where hundreds of euros were spent replacing parts that were never the problem.

04

Knowledge is locked behind language

Factory documentation and the best forums are mostly in German or English. If you don't read either, most of what you need simply isn't available to you.

Products

One shipped. Two big ones on the way.

Small helper tools are free. The big apps are paid products, built to be used every day: by professionals in the workshop and by enthusiasts in their garage.

Available now

Free helper tool · open source

E-Series Switch

One click between the E-series tools and factory ISTA+.

The legacy E-series tools only run with EDIABAS in the Windows environment, and ISTA+ breaks when it is there. Every change of car meant registry edits, INI tweaks, reboots and cryptic NET-0009 errors. Now it's one click, and you always see which mode the PC is in.

  • Switches between INPA, WinKFP, NCS Expert, Tool32 and ISTA+ from BMW AOS on the same Windows PC
  • Sets up ICOM (with IP), ENET, K+DCAN or offline, with the matching LoadWin64 and ports
  • Keeps WinKFP's NFS.INI in sync, so NFS starts without surprises
  • Byte-exact edits that touch only EDIABAS entries, with a backup before every change
  • Single portable .exe, English and Hungarian UI, update notifications
Platform
Windows 10 / 11 (64-bit)
Price
Free · MIT licence
Download v1.4.1View on GitHub
E-Series Switch window in E-series mode with the ICOM interface selected
In development

For professionals

E-Series Studio

The modern E-series coding workbench.

NCS Expert data, EDIABAS control units and vehicle orders in one modern app, every value explained in English or Hungarian, and nothing written before you see what it changes. Jobs that used to take several outdated programs, in one place.

v0.1 is running today. An F- and G-series edition is planned as a separate app.

  • Every coding value explained, next to its factory value
  • Retrofit planner: see every change before anything is coded
  • FA and ZCS decoded and edited, check characters validated
  • SP-Daten check that verifies and repairs the BMW data install
  • Next: a built-in AI diagnostic assistant
Platform
Windows 10 / 11
Licence
One-time purchase per PC
See it in actionJoin the waitlist
Planned

For owners & DIY enthusiasts

AI Repair Assistantname coming soon

Your AI co-pilot for working on your own BMW.

You don't need to be a certified technician to fix your own car properly. The assistant walks you through a full diagnosis, from the first fault code to the right part, with a BMW specialist's know-how behind every answer.

  • Fault codes explained in plain language, with urgency
  • Guided fault finding: it asks for the live data it needs
  • Tells you what to measure next and what to replace
  • Step-by-step repair guidance once the cause is found
  • Chat in your own language; photo analysis on mobile
Platforms
iOS, Android, Windows, web
Pricing
Subscription, several tiers
Get early access

More free helper tools

Small, focused utilities for everyday BMW jobs, released free on GitHub as they're ready.

BimmerDock on GitHub
E-Series Studio · v0.1

Every coding decision, explained before you write it.

The old tools show German keywords and hex. E-Series Studio shows what they mean and what a change will do, in one modern app built on NCS Expert and EDIABAS data. These are real screenshots of the current build.

Every coding value, explained.

Every function of a control unit with the factory value from the vehicle order right next to it, and NCS Expert's German keywords translated into English or Hungarian. Changes go to FSW_PSW.MAN for NCS Expert, with a history you can undo.

386
functions of an E60 light module, each explained
21
values flagged that differ from the factory value
Rules
behind every factory value, shown in plain view
E-Series Studio coding screen: turn signal monitoring functions of an E60 light module, with values, factory value and the coding rules explained

Next milestone

An AI assistant, built into E-Series Studio.

The decoding, the rules and the safety checks are already in place. Next comes an assistant with BimmerDock's E-series knowledge behind it, working right inside the app.

  • Ask about any coding function

    What it does, what a change affects and whether it is safe, explained in plain language.

  • Describe a retrofit, get the plan

    Order options, modules and values to code, checked against the vehicle order before anything is written.

  • Diagnose with live data

    The assistant asks for the readings it needs, narrows down the cause and suggests the next measurement.

  • In your language, under your control

    Every answer in the language you work in. Nothing is written to the car without your confirmation.

2,669

option codes named in English and Hungarian

2,652

EDIABAS control unit files (SGBDs) indexed

2,474

coding words in its own translation dictionary

Safe by design. E-Series Studio never writes to the car on its own. It prepares and verifies, shows every change first, and keeps a backup of every file it touches.

The AI assistant

A specialist's reasoning, guided by AI.

A fault code is the start of a diagnosis, not the answer. The BimmerDock assistant walks you through the same process I follow in the workshop — step by step, until the cause is found.

  1. 1

    Read the car

    Fault memory from every module, decoded into plain language: what it means, how urgent it is, what usually causes it.

  2. 2

    The AI asks for evidence

    Instead of guessing, the assistant decides which live data values or measurements it needs next — and tells you exactly how to get them.

  3. 3

    Narrow it down

    You feed back the readings. The assistant weighs them against how these cars actually fail, rules causes in or out, and picks the next test.

  4. 4

    Fix it with guidance

    Once the cause is clear: which part, where it sits, how to get to it, and what to check after the repair.

Workshop knowledge built in

Failure patterns, test sequences and shortcuts from daily work on BMWs — not generic car advice.

Your language

Ask and get answers in the language you think in. No more German-only documentation.

Photos, not just codes

On the phone app, show the assistant a connector, a leak or a part number and talk it through.

You stay in control

The assistant explains and suggests. Every change to the car is shown, confirmed and backed up first.

Track record

One BMW specialist. Real software, shipped fast.

BimmerDock is a one-person company with deep BMW knowledge and a software engineering background. Every product decision is made by someone who works on these cars every day, and everything is tested on real BMW data before it ships.

Built from

the ground up

NCS Expert's binary data formats were read from scratch, its rules checked against the real tool, and every result tested on installed BMW data.

Shipped

in public

E-Series Switch is open source on GitHub, and every release, from the first switch to the latest fix, is published there.

Verified in

a real workshop

Every rule, translation and diagnostic path is checked against real cars before it ships.

E-Series Switch

Sep 25 – 28, 2026

8
public releases in 4 days
~1.5k
lines of C# / XAML
MIT
open source on GitHub
  1. v1.0first switch
  2. v1.1bilingual + docs
  3. v1.2auto-update
  4. v1.3ICOM / ENET / K+DCAN
  5. v1.4WinKFP / NFS
  6. v1.4.1laptop fix

E-Series Studio

v0.1 · October 2026

9
days from first commit to v0.1
2,669
option codes named in EN and HU
212
automated tests, also on real BMW data
  1. FA / ZCSdecoder
  2. Codingeditor
  3. Retrofitplanner
  4. SP-Datencheck
  5. NextAI assistant

Roadmap

  1. 2026BimmerDock founded in Hungary

  2. Sep 2026E-Series Switch shipped: v1.0 → v1.4.1, free and open source

  3. Oct 2026E-Series Studio v0.1: coding, retrofit planner, ZCS decoding, SP-Daten check

  4. NextAI assistant inside E-Series Studio, first paid release

  5. ThenAI repair assistant for owners and DIYers: mobile, Windows and web

  6. LaterF- and G-series edition of the pro tools

Who it's for

From the home garage to the workshop floor.

Owners & DIY enthusiasts

Wrench on your own BMW — with confidence.

Working on your own car is a big part of BMW culture. You shouldn't need a workshop degree or fluent German to do it right.

  • Understand what a fault really means before spending money
  • Know which part to buy — and which ones to leave alone
  • Get repair guidance in your own language
  • Know when a job is better left to a specialist

Professionals & specialists

Do the hard jobs faster and safer.

For technicians, independent workshops and serious enthusiasts who do coding, programming and deep diagnostics every day.

  • One application instead of a stack of legacy tools
  • Factory-level functions on current Windows hardware
  • Backups and safety checks before anything is written
  • An AI assistant that helps you reason through difficult faults
About

Built by one of its own users.

I'm Brendon, a BMW specialist and an authorized BMW service partner in Hungary. Every day I diagnose, code and repair these cars — and every day I run into the same outdated tools and the same avoidable, expensive mistakes.

I'm not building this for a community I've read about. I'm one of the people it's for. I know how frustrating it is that this software doesn't exist, which is exactly why I started building it.

I also studied software engineering at university, so I see the whole picture: from the car on the lift to the code that talks to it.

2026
BimmerDock founded in Hungary
Daily
hands-on work on BMWs in the workshop
E · F · G
series I diagnose, code and repair
Both sides
automotive specialist and software engineer

How BimmerDock software is built

  • Safety before speed

    Backups before every write, clear confirmations, no silent changes to the car.

  • No shortcuts around protections

    BimmerDock software does not bypass BMW's security measures or manufacturer safeguards.

  • Honest AI

    The assistant explains its reasoning, says when it isn't sure, and tells you when a job needs a professional.

  • Done properly

    A registered business with the right contracts and licences behind everything it ships.

Early access

Be first in line.

Tell me which app you're interested in and what you drive. Waitlist members hear about releases first and get early access to testing.

I'm an owner / DIYerI'm a professional

Or write directly to hello@bimmerdock.com