Simos 12.1 bench cable

This activation enables support for the Continental Simos 12.1 bench cable, including all its supported wiring variants (if multiple exist).
To use this activation, you'll need an Express Box along with the C3 Cable (105-91pin connectors) which together provide the physical connection to the ECU.

Each of our cables (C1, C2, ... Cx) can connect to multiple ECUs in both boot and bench mode, depending on the activations.
Thanks to this innovation, full ECU coverage is achieved with just a few physical cables, supporting over 350+ types of control units and their 440+ wiring variants.
This allows you to expand your bench cable coverage with an investment of only 8–39 EUR per ECU, compared to the 80–250 EUR cost of traditional bench cables.

This Simos 12.1 ECU is implemented across the following vehicle brands. With the Express Cable, you're fully covered: Audi, Seat, Skoda, Volkswagen

You can buy the (physical) cables with full activation included - this is the most cost-effective option.
If you'd rather start small and expand later, you have two options: activate ECUs one by one (like this Simos 12.1), or save more by purchasing a bundle of, say, 10 bench cable activations in advance - and decide later which ECUs you want to activate.

Check out our
• Basic and Pro packages
• Cx Cables
• Activation Bundles
in the webshop.

Note: The physical cable, Express Box, and other items shown are not included - they are for demonstration purposes only. This is a software activation for use with an existing Express Cable set.

See how quick and effortless

• bench mode tuning is without ECU removal
• how easy to setup the cable
• instant ECU connection on bench

Simos 12.1 Bench Cable

Working with the Continental Simos 12.1 bench cable? This solution offers a reliable way to interact directly with the ECU for programming or diagnostics.

Why choose the Continental Simos 12.1 bench cable?

This bench cable is a key part of our intelligent system. Each harness is designed to support multiple ECU types, streamlining your daily tasks.

From data backup to full firmware flashing, the Continental Simos 12.1 bench cable allows professionals to handle ECUs efficiently outside the vehicle environment.

The design of this solution prioritizes both compatibility and workshop efficiency. Unlike traditional cables that are limited to one function or ECU model, this bench cable operates within a flexible modular ecosystem — perfect for dynamic environments and frequently changing project needs.

Smart investment: this approach gets you maximum coverage without overspending on hardware.

This solution is built not only for compatibility, but also for high reliability. You can count on it even in high-volume tuning environments.

Who is this cable for?

This product is an excellent fit for tuning professionals, ECU programmers, remapping engineers, and anyone needing consistent and safe bench access to the Simos 12.1. Whether you're working with stock vehicles, damaged ECUs, or highly modified setups, the Continental Simos 12.1 bench cable enables access without opening or soldering.

Garage workshops, mobile technicians, and electronic service centers will benefit from the speed and convenience this cable offers. It’s a go-to tool for those who value both precision and reliability during bench-mode operations.

Vehicle Compatibility

The Simos 12.1 ECU is installed in a range of vehicles. This product supports brands including:

• Audi
• Seat
• Skoda
• Volkswagen

Activation Options

Whether you want to try one ECU or unlock ten, both options are supported via single or package deals.

Both options are supported through our webshop, and bundle discounts are available for frequent users. If you are just starting, you can grow your activation set gradually.

Compatible Tuning Tools

The Continental Simos 12.1 bench cable supports numerous tuning platforms using adapter-based connections. Below is the list of compatible tools our users frequently rely on:

• AMT-BST
• PCMFlash
• Kess3
• Trasdata
• KTAG
• MMCFlash
• CMD
• Flex
• Galetto
• Scanmatik (SM2, SM2-Pro, SM3)
• DFOX
• Bitbox
• Autotuner
• Hexprog2
• bFlash

Each of these platforms has been tested for compatibility and stability with our system. Just plug in the appropriate adapter, and you're ready for ECU communication.

Bench cables you may also need

Each of these cables is available for under 8 EUR when included in a bulk activation via our Pro Package. It's the most cost-effective way to expand your ECU coverage.

Simos 12.2 bench cable
1JXXX-59052 bench cable
39199-4ADN0 bench cable
CPGPSH2.14.1 bench cable
MJ9DF bench cable
MJD9DF bench cable
M17.8.42 bench cable
M17.8.7 bench cable
ME17.0.3 bench cable
ME17.3.0 bench cable