Autotuner Solution for Mercedes CRD3PLUS.A0 ECU Reading

2015 Mercedes- C220D Delphi CRD3PLUS.A0 TC1797 ECU reading and writing review:

Flex could not read/connect via Bench or even OBD- Tried both pinots, Tried TC1793 etc.

Pulled out Foxflash with the same result.
In the end completed with Autotuner worked first time.

Very Strange as have done many of these before and there’s no info out there to say this can be a case.

But looking through the forum a couple people had the exact same issue.

Conclusion — there’s a small batch of these which can’t be done with flex etc.

So if you have this issue try with Autotuner!

 

Flex OBD Write Fail on VAG DCM6.2V ECU Fix

Problem: Read and write DCM6.2V Vag ECU with MMS Flex programmer. At 29% the write failed and car didn’t start, voltage was 13.3. Any solution?

Solution:

Do these without a charger. Probably an internet or server issue.

Or do it in bootmode! OBD after 21 with flex maybe can damage eeprom.

Never had an issue but generally use Autotuner for these. Even without a charger they are stable.

Instead of flex, we can use AT on it only because checksum by flex takes ages!

How to Solve Foxflash Update Server Connection Error

Problem: Cannot get Foxflash working today. Error: There is a problem reaching the update server.

Solution:

so here’s the quickfix from one of our users FOR THE UPDATE SERVER ERROR!

Download link and unzip to foxflash folder, then make a shortcut on desktop of the foxflash software.

[https://files.fm/u/cn4dk6m6jz]

Be sure to install also drivers, found inside folder.

How to Fix Foxflash Simos 18.1 Password Read Failure

Problem: Tried to read and write Simos 18.1 ECU with Foxflash but extract password not working.

Solution:

Voltage is not good.

User feedback:

Solved! Had a problem with the resistances, the voltage is true, the power supply died and did it with the standard.
READ OK.
WRITE OK.
CHEKSUM OK FOXFLASH.
STAGE 1 + POPS
VW GTI 7 2.0TSI 230CV

KESS3 Adds EVPT VCU3000 Boot Mode for EVs

Alientech KESS3 released a new protocol for EVPT VCU3000- Citroen, Fiat, Opel/Vauxhall.

Take the next step in EV tuning: work in BOOT mode on the latest EVPT VCU3000 units, now supported on ultra-compact electric vehicles equipped with 5.5 kWh systems from 2025.

• Full read and write access in BOOT mode
• Direct operations on the VCU memory for precise parameter control
• Expand your workshop services with micro-EV support

EVPT VCU3000 — Citroën, Fiat, Opel/Vauxhall.
Work in BOOT mode on the new VCU units for EVs, now supported.

03.12.2025 — UPGRADE 2.67

With this update you can operate directly on the memory of the EVPT VCU3000 control unit, installed on ultra-compact electric vehicles from Citroën, Fiat and Opel/Vauxhall with 5.5 kWh power units from 2025 onward.

The BOOT connection guarantees full access to the VCU data, enabling complete read and write operations for accurate parameter management and full control over your tuning workflow. A solution designed for workshops beginning to work on the new generation of micro-EVs.

Thanks to the support for Citroën Ami, Fiat Topolino and Opel/Vauxhall Rocks-e, you can expand your service offering to include electric vehicles increasingly common in urban environments, providing specialist and high-value services.

Technical focus
Connection: BOOT
ECU: EVPT VCU3000
Production years: from 2025
Brands involved: Citroën, Fiat, Opel, Vauxhall

Supported vehicles
Citroën Ami
Fiat Topolino,
Opel Rocks-e
Vauxhall Rocks-e