RAZTECHECU ENGINEERING
ECU repair

Engineering-grade ECU & Control Unit Repair

Mail-in repair, cloning & programming for workshops across Germany. Fixed price, fast turnaround, dedicated contact.

4336 ECUs mapped. Repaired, cloned, programmed. OBD - Bench - Boot
Services

Control Unit Repair & ECU Service

ECU Repair

Engine ECU, DME/DDE, EDC17/MED17 - no communication, water damage, defect.

ECU Coding / Cloning

Including immobilizer adaptation & coding after replacement.

Programming & Flash Service

Flashing, programming and adapting control units of all major brands.

Diagnostic Support

Fault diagnosis, DTC analysis and support for complex issues.

How it works

1. Request

Via the form - you get a dedicated contact person.

2. Send in

Ship your control unit to us, securely packaged.

3. Processing

Diagnosis by our technicians - feedback after receipt with a quote.

4. Return

Repaired unit ships back to you.

OBD - Bench - Boot
Online support & dedicated contact
Fast turnaround
Engineering-Grade Qualität

RazTech Tuning Services

Custom remapped tuning

files & solutions

Power & Eco Remaps

Stage 1 or Stage 2 performance calibration and eco-optimization tailored for performance and efficiency across all vehicle types.

Car catalogue

Deactivations

Reliable software solutions for DPF, EGR, SCR (AdBlue), Vmax limiters and other solutions and deactivations across all vehicle types.

View Services

Dedicated Engineers

No automated solutions. Every file is manually modified and double-checked by a dedicated developer who provides 1-on-1 project support.

Contact & support

PRO Tuning Dashboard

Professional portal with total control of your projects, technical support, vehicle catalogue, DTC codes and ECUs database.

PRO File service
Tuning files

Engineers with deep expertise in ECU calibration.

Precision
 tuning files

Control Unit Repair

Repair the control unit instead of replacing on suspicion.

Limp mode, no-start, or a "control unit defective" verdict from another workshop? We diagnose the real cause and repair the unit at board level — the part stays in the vehicle until we confirm.

Board-level repair

Component-level diagnostics and repair of faulty control units — before you pay for a costly replacement.

All major ECU/TCU families

Bosch, Siemens/Continental, Delphi and more — engine, gearbox, body and comfort modules.

Tested before return

Every repaired unit is bench-tested and verified before it leaves our engineering lab.

Control unit board-level repair

Unit repaired & verified

No replacement needed

RazTech Tuning advisor

Ready to unlock your vehicle's true potential?

Discover the ultimate performance

upgrades for your vehicle.

Tuning Advisor

Powered by RazTech Engineering

Start tuning in 3 simple steps!

Register, upload and get your tuned file in under 1 hour!

1

Create Account

Register quickly to purchase tokens, handle projects, and access our custom tuning files engineering support.

2

Upload & Search

Upload your original ECU/TCU/DCU read, select your options, and receive your tuned file in under 1 hour.

3

Pay & Download

Secure payment via Credit Card, PayPal, or Bank Transfer. Receive your tuned file within 1 hour.

CRM & File Service

One dashboard for your entire tuning business.

Manage projects, quotes, and support in a single professional B2B portal built for tuning shops and workshops.

Live Dashboard

Real-time service status, wallet balance and active projects at a glance.

File Projects

Secure upload zone with ECU selection and status tracking: Waiting, In Progress, Finished.

Support Tickets

Ticket-based communication linked directly to your file uploads for logs and technical issues.

Custom Quotes

Request a tailored quote for any calibration project — you approve the price before any work begins.

RazTech client portal dashboard preview

File Ready

Delivered in under 1 hour

Trusted engineering protocols

Supported Hardware & ECU Families

Professional Licensed Tools

OBD, Bench & Boot read/write

WinOLS Calibration

Manual map editing & checksums

Bosch EDC / MED

Full checksum support

Siemens / Continental

PCR2.1 & legacy families

Latest news

and offers from the world of ECU remapping

Electronic Ignition Switch (EZS): Function, Common Symptoms and ECU Diagnosis
2026-10-10

Electronic Ignition Switch (EZS): Function, Common Symptoms and ECU Diagnosis

Learn what an electronic ignition switch (EZS) does, which symptoms may indicate a fault, and why vehicle-specific ECU diagnosis matters.

EPC Warning Light On: Causes, Diagnosis and ECU Repair
2026-10-09

EPC Warning Light On: Causes, Diagnosis and ECU Repair

The EPC symbol lights up on the instrument cluster, the engine runs rough, drops into limp mode or won't start at all. The EPC warning light is one of the most common messages in the Volkswagen Group – and often one of the trickiest for workshops. What EPC means, how to narrow down the cause systematically, and when the engine control unit itself is affected.

Jump Start Consequences: When a Jump Start Damages the ECU
2026-10-08

Jump Start Consequences: When a Jump Start Damages the ECU

The quick jump start from another vehicle — and afterwards the engine still won't fire. Worse: the car suddenly shows faults that weren't there before. What many don't know: improper jump starting can damage the engine control unit.

MED17 Capacitor Failure: When the ECU Fails Intermittently
2026-10-07

MED17 Capacitor Failure: When the ECU Fails Intermittently

Not every ECU defect is spectacular. Some creep in over months: intermittent starting, OBD communication drops, fault codes that return after clearing. The cause is often aging electrolytic capacitors in MED17 and Simos control units.

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