Vcds Kolimer Failed 2 New [2021] May 2026

The "VCDS Kolimer Failed 2 New" error typically occurs when using clone VCDS interfaces (VAG-COM) paired with Kolimer's Loader

. This message usually indicates a communication breakdown between the loader software and the cable's firmware, often triggered by internal license revocation or an attempted unauthorized update. 1. Identify the Cause License Revocation

: Ross-Tech software may detect the clone cable and "deactivate" it by writing junk data to the cable's EEPROM. Version Mismatch

: Using a version of VCDS that is newer than what your specific loader supports. Internet Interference

: Allowing the software to "phone home" can lead to the cable being blacklisted or bricked. 2. Troubleshooting & Recovery Steps

If you encounter this error, follow these steps to attempt a reset: Clean Reinstall Unplug the interface from the PC and car.

Delete all existing VCDS drivers and files from your laptop.

Perform a fresh install using the specific version provided with your cable (e.g., VCDS 20.4.2 or 22.3). Reflash the Firmware

Use a dedicated firmware updater tool (often found in "Loader 9.2" or similar archives) to reflash the EEPROM. This resets the "deactivation" junk written by the software.

: Only use firmware matched to your cable's chip (e.g., ATmega162 for older V1 clones or STM405/407 for newer V2 clones). Loader Configuration VCDSloader.exe is placed in the same folder as the main VCDS program. Always launch the software using the , never the original VCDS shortcut. 3. Prevention Best Practices

To avoid future "Failed 2 New" errors or license revocations: Disable Internet : Create a rule in Windows Firewall

to block all VCDS-related executables from accessing the internet. Turn Off Auto-Updates : In VCDS settings, set "Check for Updates" to "Never." Native Windows Environment

: Only run the software on a native Windows machine; avoid Virtual Machines (VMs) as they can cause timing issues during firmware communication.

: If these steps fail and the cable remains unresponsive (no lights or recognized port), it may be permanently bricked, requiring a new cable. firmware version matches your specific cable's internal chip?

It looks like you’re referencing an error message from VCDS (Vag-Com Diagnostic System) by Kolimer — likely a cracked or cloned version of Ross-Tech’s original VCDS software.

The phrase “failed 2 new” typically means:

The software tried to perform an activation check or firmware handshake with the interface cable.
The check failed — often because the cable is a clone and the software version is too new (e.g., newer VCDS releases detect counterfeit interfaces and show “Failed”).
“2 new” might refer to two new attempts or a second-stage check that failed.

Summary

You are likely seeing a communication failure between the tool and a specific module.

If you just installed a new part: The module is likely fitted but not "adapted" yet. You need to perform the Adaptation/Security Access procedure.
If nothing is new: You have a wiring issue, a blown fuse on the specific module circuit, or a failing control module.

Recommendation: Run a full Auto-Scan and save the log file. That file will show the exact German error code (e.g., K-Fehler or Keine Kommunikation), which is the key to solving the problem.

This document is structured for a technician or advanced user troubleshooting a VAG (VW/Audi/Seat/Skoda) vehicle using a non-genuine interface.

B. Corrupted or Modified `VCDS.exe`

Some antivirus programs (Windows Defender, Avast, etc.) delete or quarantine critical parts of the cracked VCDS executable. If VCDS.exe is missing or altered, Kolimer cannot patch it, leading to a “Failed 2 New” message.

Option 1: Tech Support / Help Request (Forums & FB Groups)

Title: VCDS Kolimer “Failed 2 – New” Error – Any Fix?

Body:
Hey everyone,
I’m running an unofficial VCDS loader (Kolimer) and suddenly got the “Failed 2 – New” message when trying to connect to a module. It was working fine before.

What I’ve tried so far:

Reinstalling the loader & driver
Using a different USB port
Running as admin
Disabling antivirus

Still getting the same “Failed 2 – New” error.
Has anyone found a working fix for this on the latest Kolimer version? Or is the loader simply dead now?

Thanks.

Technical Report: VCDS Kolimer Interface Failure – "Failed 2 New" Error

E. Missing or Incorrect `kolimer.exe` Dependencies

The Kolimer loader requires certain .dll files (e.g., msvcr100.dll, kernel32.dll calls) or a specific folder structure. If you placed the loader in the wrong directory, step 2 fails.

Step 2: Disable Antivirus and Windows Defender (Temporarily)

This is critical.

Go to Windows Security > Virus & threat protection > Manage settings.
Turn off Real-time protection.
Turn off Tamper Protection (if available).
Note: Do not browse the web or download other files during this time.

The "Silicon Labs" CP2102 Alternative

Some newer clone cables use Silicon Labs CP2102 chips instead of FTDI. If you have a "failed 2 new" error with an FTDI driver, your cable might actually be a CP2102 variant.

Download and install Silicon Labs CP210x Universal Windows Driver.
In Device Manager, manually assign the driver.
The Kolimer loader works with both, but you must tell the loader which chip you have (some versions have a config file named FTDI_or_Silabs.ini). Set it correctly.

Possible fixes (for informational purposes only):

Use an older version of VCDS that works with your cable.
Install the specific driver provided with the Kolimer release.
Disable automatic driver signature enforcement in Windows.
Buy a genuine Ross-Tech VCDS interface (legally required for full, reliable functionality).

⚠️ Note: Using cracked software may violate copyright laws, lacks support, and can damage vehicle modules. For professional diagnostics, genuine VCDS is strongly recommended.

If you need help interpreting a specific fault code from VCDS (e.g., engine, ABS, airbag), paste the full code and I’ll explain it.

The error message "vcds kolimer failed 2 new" typically appears when using Kolimer loaders with unofficial or "clone" VCDS (VAG-COM Diagnostic System) interfaces. This failure usually indicates a communication breakdown between the third-party loader software and the interface hardware, often triggered by a mismatch in software versions or anti-virus interference. Understanding the "Failed 2 New" Error

This specific error is associated with the Kolimer loader, a tool used to bypass official Ross-Tech licensing on clone cables. The "Failed 2 New" status often means the loader cannot properly initialize the interface because:

Software Version Mismatch: The loader version you are using does not support the specific VCDS software version installed on your PC.

Firmware Mismatch: The cable's firmware has been updated (or attempted to update) by the official Ross-Tech software, causing the third-party loader to lose control.

Security Conflicts: Windows Defender or other anti-virus software has flagged and quarantined essential loader files, preventing them from "patching" the VCDS executable. Step-by-Step Troubleshooting Guide

If you encounter this error, follow these steps to restore functionality: 1. Disable Anti-Virus and Windows Defender

Third-party loaders like Kolimer are frequently flagged as "False Positives" because of how they modify software behavior.

Disable Real-time Protection: Temporarily turn off your anti-virus before launching the loader.

Add Exclusions: Add the entire VCDS installation folder to your anti-virus exclusion list to prevent it from deleting the loader in the future. 2. Perform a Clean Reinstall

Conflicting drivers or corrupt installation files are common culprits.

Uninstall VCDS: Remove the software via "Apps & Features" in Windows.

Remove Drivers: In Device Manager, find the Ross-Tech interface, right-click it, and select "Uninstall device," ensuring you check the box for "Delete the driver software for this device".

Reinstall: Install the specific version of VCDS that was originally bundled with your Kolimer loader. Do not use the latest version from the official Ross-Tech Download Page unless your loader explicitly supports it. 3. Update the Loader Version

If you have updated your VCDS software to a newer version (e.g., from v20 to v23 or v24), your old Kolimer loader may no longer work.

Search for the latest Kolimer Loader compatible with your VCDS version. vcds kolimer failed 2 new

Ensure the VCDSLoader.exe is placed directly in the main VCDS installation directory before running it. 4. Fix a "Bricked" or Stuck Interface

If your interface shows flashing red lights, it may be stuck in an "update mode" or have corrupted firmware.

Force Update: If you are using a HEX-V2 or HEX-NET style clone, try using the VCI Config utility to force a firmware update, though this carries a risk of permanently "bricking" some clone cables.

Check Connection: Ensure you are using a high-quality USB cable. Sometimes a simple cable swap can resolve "enumeration" errors that the loader misinterprets. Summary of Best Practices To avoid the "Failed 2 New" error in the future:

Stay Offline: Always disconnect your PC from the internet when using clone cables to prevent the software from checking for official updates.

Use the Loader Only: Never launch VCDS using the original vcds.exe shortcut; always use the VCDSLoader.exe provided with your interface.

VCDS Kolimer Failed 2 New: Troubleshooting and Solutions

If you're a Volkswagen or Audi enthusiast, you're likely familiar with VCDS (VAG-COM Diagnostic System), a popular tool used for diagnosing and coding vehicle systems. However, some users have reported encountering a frustrating issue with VCDs, specifically the "Kolimer Failed 2" error message. In this article, we'll delve into the causes, troubleshooting steps, and potential solutions for this error.

What is VCDS and What is Kolimer?

VCDS is a software tool developed by Ross-Tech, designed to communicate with Volkswagen and Audi vehicles' onboard computers. It allows users to diagnose issues, perform repairs, and even modify vehicle settings. Kolimer, on the other hand, is a component of the VCDS system, responsible for establishing a stable connection between the software and the vehicle's ECU (Engine Control Unit).

What does "Kolimer Failed 2" mean?

When the VCDS software attempts to connect to the vehicle's ECU, it may display the "Kolimer Failed 2" error message. This indicates that the Kolimer component has failed to establish a stable connection with the ECU, preventing the VCDS software from functioning properly. This error can occur due to various reasons, including:

Incompatible or outdated VCDS software: Using an outdated or incompatible version of VCDS can cause communication issues with the vehicle's ECU.
Faulty or loose connections: Problems with the vehicle's wiring, faulty OBD-II connectors, or loose connections can disrupt communication between the VCDS and ECU.
ECU or vehicle issues: In some cases, the error may be related to the vehicle's ECU or other system problems, such as a faulty engine control module or issues with the vehicle's CAN (Controller Area Network) bus.
Incorrect or missing drivers: Missing or incorrect drivers for the vehicle's ECU or the VCDS interface can prevent a stable connection.

Troubleshooting Steps

To resolve the "Kolimer Failed 2" error, follow these troubleshooting steps:

Update VCDS software: Ensure you're running the latest version of VCDS software. Check the Ross-Tech website for updates and install the latest version.
Verify connections: Double-check the vehicle's OBD-II connector, ensuring it's securely connected to the VCDS interface. Inspect the vehicle's wiring for any signs of damage or wear.
Check ECU and vehicle systems: Verify that the vehicle's ECU and other systems are functioning properly. Consult the vehicle's repair manual or seek professional assistance if you're unsure.
Install correct drivers: Ensure that the correct drivers are installed for the vehicle's ECU and VCDS interface. Consult the Ross-Tech documentation or contact their support team for assistance.
Reset VCDS settings: Try resetting the VCDS settings to their default values. This can be done by deleting the VCDS configuration file (usually found in the "C:\Ross-Tech\VCDS\Cfg" directory).

Advanced Solutions

If the troubleshooting steps above don't resolve the issue, you may need to try more advanced solutions:

Reinstall VCDS software: Reinstall the VCDS software, ensuring you delete any existing configuration files and registry entries.
Update vehicle firmware: In some cases, updating the vehicle's firmware may resolve communication issues with the VCDS software.
Use a different VCDS interface: Try using a different VCDS interface or a different OBD-II adapter to rule out any issues with the current setup.

New VCDS Releases and Updates

The Ross-Tech team continuously works on improving and updating the VCDS software. Recently, new versions of VCDS have been released, addressing various issues, including the "Kolimer Failed 2" error. If you're experiencing this issue, ensure you've updated to the latest version of VCDS.

Conclusion

The "Kolimer Failed 2" error can be frustrating, but by understanding its causes and following the troubleshooting steps outlined in this article, you should be able to resolve the issue. If you're still experiencing problems, consider seeking assistance from the Ross-Tech support team or a professional mechanic familiar with VCDS and Volkswagen/Audi systems.

Recommendations

To avoid encountering the "Kolimer Failed 2" error in the future: The "VCDS Kolimer Failed 2 New" error typically

Regularly update VCDS software: Stay up-to-date with the latest VCDS releases and updates.
Verify vehicle connections: Double-check vehicle connections and wiring to ensure they're secure and undamaged.
Consult documentation and support: If you're unsure about any aspect of VCDS or vehicle systems, consult the Ross-Tech documentation or contact their support team.

By following these best practices and staying informed, you'll be well on your way to resolving any VCDS-related issues and enjoying a smooth, successful diagnostic experience.

Error Log Entry - VCDS Kolimer Failure

Date: 23/02/2023 Time: 14:47:32 Error Code: VCDS-KOLIMER-002

Description: The VCDS Kolimer process has failed to initialize two new instances. This error occurred during the scheduled maintenance window, impacting the overall system performance.

Failure Details:

Instance 1: VCDS-KOLIMER-01 failed to start due to a configuration mismatch. The kolimer configuration file was not updated with the latest parameters, causing the process to terminate immediately.
Instance 2: VCDS-KOLIMER-02 encountered an issue with the system's resource allocation. Insufficient memory was allocated to the process, leading to a critical failure.

Impact: The failure of both VCDS Kolimer instances has resulted in delayed data processing and potential data loss. The system will continue to operate in degraded mode until the issues are resolved.

Recommendations:

Update the kolimer configuration file with the latest parameters to ensure Instance 1 can start successfully.
Increase the memory allocation for Instance 2 to prevent resource-related failures.
Perform a thorough review of the system's resource utilization to prevent similar issues in the future.

Assigned Technician: [Name Redacted] Priority: High Estimated Resolution Time: 2 hours

The "Failed 2" error in the VCDS Kolimer loader—specifically the VCDSLoader.exe

used for clone interfaces—typically indicates a communication breakdown between the software, the loader, and the interface hardware. This error often occurs when the loader cannot properly hook into the VCDS process or when the interface firmware has been "blacklisted" or corrupted. Core Causes of "Failed 2" Version Mismatch:

Using a newer version of the official VCDS software with an older Kolimer loader that does not support the latest security patches. Antivirus Interference:

Modern security suites often flag loaders as malicious because they modify program execution in memory, leading to a "failed to start" or "failed 2" error. Driver Corruption:

Windows might have automatically updated the USB drivers to an official version that the clone hardware cannot negotiate with, effectively "hiding" the interface from the loader. Firmware Lock:

If the interface was connected to the internet while VCDS was open, the official server may have revoked the license or updated the firmware to a non-functional state. Troubleshooting and Solutions Fresh Installation: Completely remove all VCDS and VCDSLoader

files. Reinstall the specific version provided by the hardware vendor, as official updates often break clone functionality. 32-bit vs. 64-bit:

On some 64-bit laptops, the loader may fail unless the 32-bit version of VCDS is installed, even if the operating system is 64-bit. Antivirus Exclusion: Add the entire VCDS folder and the VCDSLoader.exe

to your antivirus exclusion list to prevent the executable from being blocked at runtime. Hardware Reset: Some users have success using tools like VAGCOM_EEWriteLang.exe

to flush the EEPROM of the cable before attempting to use the loader again. Offline Use:

To prevent future "Failed 2" or "License Revoked" errors, create a firewall rule to block

from accessing the internet or always disconnect Wi-Fi when using the tool. Have you checked if your has recently quarantined the loader file or if a Windows Update recently changed your USB drivers?

Here’s a ready-to-use post for forums, Facebook groups, or social media regarding the VCDS Kolimer (cracked/unofficial version) “Failed 2 – New” error.

Choose the tone that fits your audience (tech help, warning, or casual chat). The software tried to perform an activation check