AT Technicians Limited

30/10/2026

Mercedes-Benz is evolving. So are we.
At AT Technicians Ltd, we are ready for the next generation of Mercedes-Benz technology.

From Advanced Diagnostics and XENTRY Programming to DAS4 / FBS4 specialist work, EV & Hybrid expertise, and complex electrical fault diagnosis: we provide the knowledge, equipment, and experience modern Mercedes-Benz vehicles demand.

With 15 years of Mercedes-Benz specialist experience, we continue to invest in the technology, training, and systems needed to support both current and future Mercedes-Benz models.

Your Mercedes. Our focus.
📍 Grays, Essex
📞 01375 768343
🌐 www.attechnicians.co.uk

16/10/2026

⚡ MERCEDES-BENZ ELECTRICAL, EV & ADVANCED CODING SPECIALISTS 🔧

Modern Mercedes-Benz vehicles need more than a standard mechanic. They need advanced technology, specialist knowledge and the right diagnostic equipment.

At AT Technicians Ltd, we specialise in complex electrical faults, electronic systems, coding, programming and electric vehicle technology.

🚗 WHAT CAN WE DO FOR YOUR MERCEDES-BENZ?

⚡ Electric & Hybrid Vehicles (EV/Hybrid)

Mercedes-Benz EQ range diagnostics and servicing

High-voltage system diagnostics

Electric and hybrid system fault finding

Battery management and charging system diagnostics

💻 Advanced Coding & Programming

FBS3 & FBS4 control module programming

ECU coding, adaptation and replacement

New and compatible used control module programming

EIS/EZS programming and key solutions

Transmission and engine control unit programming

Software configuration and module adaptation

🔍 Electrical Fault Diagnosis & Repairs

Complex electrical and electronic fault finding

Wiring, sensors and communication faults

CAN bus network diagnostics

Intermittent electrical problems

Electronic control unit faults

Starting and immobiliser system diagnostics

🛠️ MERCEDES-BENZ XENTRY DIAGNOSTICS

We use professional Mercedes-Benz diagnostic technology to investigate faults accurately, identify the cause and provide effective repair solutions.

✅ Why choose AT Technicians?

✔️ Independent Mercedes-Benz & Smart specialists since 2011

✔️ Advanced diagnostic and programming capabilities

✔️ Experienced technicians and specialist equipment

✔️ Solutions for complex electrical problems

✔️ Professional service without main dealer prices

From a warning light to complex electronic programming — we've got the technology and expertise to help.

📍 AT Technicians Ltd | Grays, Essex

📩 Contact our team to book your diagnostic appointment.

AT TECHNICIANS LTD – SPECIALIST KNOWLEDGE. ADVANCED TECHNOLOGY. REAL SOLUTIONS.

Independent Mercedes-Benz & Smart specialist. Not affiliated with Mercedes-Benz Group AG.

12/10/2026

🔧Mercedes-Benz Electronic Control Module Programming, Adaptation & Replacement

We programme, adapt and replace Mercedes-Benz electronic control modules.

🔑 Keys & ignition modules
We supply and programme new keys and new EZS/EIS ignition modules.

⚙️ Engine & transmission modules
We programme and adapt engine control modules, including ME, MED, CRD, MRD and MRG.
We also work with transmission modules, including 9G, FDCT and NAG2.

♻️ New & second-hand modules
Many compatible second-hand control modules can be programmed and adapted to your vehicle.

💻 Cloning & activation
We clone, programme and activate a wide range of electronic control modules.

🚗 Instrument clusters & multimedia
We replace instrument clusters, enable AMG menus and activate Apple CarPlay and Android Auto on compatible vehicles.

📍 AT Technicians Ltd — Grays, Essex
📩 Message us with your vehicle model, year and the service you need.

Services depend on vehicle and module compatibility. We are independent specialists and are not affiliated with Mercedes-Benz.

08/10/2026

🔑 NEED A NEW MERCEDES-BENZ KEY?

Lost your key, damaged it, or simply need a spare?

At AT Technicians Ltd, we can programme and supply a brand-new Mercedes-Benz key using specialist DAS4 programming technology.

🚗 Mercedes-Benz key programming
🔑 New and replacement keys
🔐 Advanced vehicle security technology
🛠️ Professional programming by Mercedes-Benz specialists

📍 Grays, Essex

📞 Contact us today to check availability for your vehicle!

07/10/2026

Mercedes-Benz DAS4 Programming

DAS4 is Mercedes-Benz’s advanced vehicle security and authorisation system, used on many Mercedes-Benz models from approximately 2013 onwards.

The system is designed to:
* Protect the vehicle against theft
* Prevent unauthorised use of stolen vehicle components
* Secure communication between key vehicle control units
* Link the vehicle key to a unique identification and authorisation system

At AT Technicians Ltd, we can carry out Mercedes-Benz DAS4 programming and provide a correctly programmed replacement key for compatible vehicles.

Mercedes-Benz key supply & programming: £483.33 + VAT

Mercedes-Benz & Smart Independent Specialists

30/09/2026

🔋 How well do you know your electric vehicle battery?

Have you checked your EV battery condition, how much range it can still deliver, or noticed that it is no longer performing as it should?

At AT Technicians, we are ready to help with electric and hybrid vehicle battery diagnostics, assessment and battery-related repairs or replacement options.

We support Mercedes-Benz and smart electric vehicles, helping you understand the condition of your battery and what options are available.

⚡ Battery concerns? Reduced range? Warning messages?
Get in touch with us for more information.

📍 AT Technicians – Mercedes-Benz & smart Independent Specialists

30/08/2026

Bank Holiday Monday,
31st August — we’re closed!
A good reminder that work-life balance matters. Enjoy the break and recharge! ☀️

25/06/2026

17/06/2026

🚗 MERCEDES-BENZ CODING, PROGRAMMING & DIAGNOSTICS – DONE THE RIGHT WAY 🚗

At AT Technicians Ltd, we use the latest Mercedes-Benz XENTRY Diagnostic System to provide dealer-level coding, programming, software updates and advanced diagnostics.

✅ SCN Coding
✅ Control Unit Programming
✅ Software Updates
✅ AdBlue System Coding
✅ ECU, TCU & Module Replacement Programming
✅ Retrofit Coding & Vehicle Configuration
✅ Advanced Fault Finding
✅ Mercedes-Benz, AMG, EQ & Smart Vehicles

Our experienced technicians use genuine Mercedes-Benz diagnostic equipment to ensure your vehicle is programmed correctly, safely and to manufacturer standards.

🔧 Dealer-Level Technology
🔧 Fast Turnaround
🔧 Mercedes Specialists Since 2011
🔧 Professional Advice & Support

Whether your vehicle needs a software update, module replacement, coding after repairs, or complex diagnostics, we have the tools and expertise to help.

📞 01375 768343
📍 Grays, Essex
📧 [email protected]

AT Technicians Ltd – Keeping Your Mercedes Performing at Its Best.

# AMG # GraysEssex # MercedesService # SmartCar ATTechnicians # MercedesExperts

16/06/2026

☀️ Summer is here! Are you ready?
FREE Summer Inspection from 21st–27th June only.
Book now and make sure your car is holiday-ready!
Call us on 01375 768343 to book your FREE Summer Inspection. Limited spaces available! mercedesspecialist