A complete service kit for professionals — a tool designed for authorized workshops, electronic service centers, and automotive locksmiths who require a reliable and safe solution for working with MQB instrument clusters based on the RH850 processor.
What the kit includes
PolDiag PROGRAMMER (device)
MQB RH850 LICENSE (activated for working with MQB RH850)
RH850 POWER SUPPLY (dedicated)
ADAPTER CABLE (complete connection set)
1 year of subscription and updates FREE
Access to a closed technical support group (Poldiag RH850 Official Support Group)
Key Features
1) Mileage Functions
Reading, decrypting, and editing mileage data on MQB RH850 connectors.
Writing modified dumps directly to the Renesas microcontroller.
Support for analog and LCD/virtual VDO clusters with IMMO 5A / 5C.
2) Immobilizer (IMMO) Functions — for IMMO 5A
Reading data when all keys are lost (All Keys Lost).
Generating IMMO files compatible with VVDI2.
Decrypting IMMO data: FAZIT, VIN, component security, MAC, PIN, configurations, keys.
Preparing dealer keys, cloning (1:1), transferring data between units (if both have IMMO 5A).
Retrofit capabilities (e.g., analog ⇒ LCD/virtual conversion) while preserving IMMO data integrity.
3) RH5D Extension — support for modern models
The only known solution for working with Continental RH850 clusters in aluminum casing (e.g., Golf VIII, Octavia IV, A3 8Y).
Dedicated procedures for safe data correction in these models.
Supported MCUs and Vehicles
Supported Renesas microcontrollers: R7F701401, R7F701402, R7F701407 (BGA), R7F701414.
Brands: Audi, Škoda, Seat, VW, Cupra.
Cluster types: analog, LCD/virtual, Continental RH850 in aluminum casing (RH5D).
Workshop Benefits
Full proprietary technology from PolDiag — access to functions unavailable in any other tool.
Optimized procedures save time on complex repairs and retrofits.
Technical support and updates included for 1 year, with optional subscription renewal.
Ability to perform “all keys lost” tasks, cloning, and transfers without replacing entire modules.
Safety and Compliance
The kit is intended exclusively for qualified and authorized service centers.
Using mileage editing or IMMO functions for fraud, hiding vehicle condition, or any illegal activity is strictly prohibited.
By purchasing and using the device, the user declares that it will be used in accordance with applicable laws and solely for legal service purposes.
Support and Warranty
1 year of subscription and updates included.
Access to a closed technical group with expert instructions and guidance.
Option to purchase extended support and additional licenses (details available from the vendor).
Intended Users
Automotive electrical and electronics workshops
Authorized service stations and body/mechanical workshops performing retrofits/cloning
Specialists in IMMO systems and advanced diagnostics
About the Subscription
The first year of use is completely free.
Each subsequent year costs €200 net.
IMPORTANT: WhatsApp installation is required to use the device.
Every user who purchases the RH850 solution will be added to a special group for license activation and use.
If you do not agree to participate in the WhatsApp group, please do not purchase the device.
PolDiag MQB RH850 SET1 (Device + License) — Legal Protection
All PolDiag devices, including the PolDiag MQB RH850 SET1, are protected by copyright and intellectual property laws.
PolDiag retains full rights to its products, including designs, software, and unique technological solutions.
Unauthorized copying, modification, distribution, or use of the devices without PolDiag’s explicit consent is strictly prohibited and may result in legal consequences.
PolDiag ensures the protection of its innovations, providing customers with original, high-quality products.
The device must be used in compliance with the laws of your country. Unauthorized use of the device, license, or software is prohibited.
Additionally, our devices include advanced protections to safeguard PolDiag software and licenses from unauthorized use.















