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CGDI CG100X Repair Mileage for 2019- Benz HU6 R7F701403 Cluster No Filter

Posted on April 3, 2025 by

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CGDI CG100X Programmer can support mileage repair for 2019- Mercedes-Benz HU6 cluster since V1.7.1.0. Follow this post to check the operation guide.

Something about MB HU6:

The HU6 (HEADUNIT6) system is a highly integrated in-vehicle infotainment and instrument control system in Mercedes-Benz models. The Mercedes-Benz HU6 system is typically installed in recent Mercedes-Benz models, such as:

2019- W247 A-Class, B-Class, CLA-Class, GLA-Class, GLB-Class
2019-W177 CLA-Class, GLA-Class
2019-W167 GLE-Class, GL-Class
2020- W213 E-Class, CLS-Class
2021- H243 EQA and X243 EQB

The instrument computer types of Mercedes-Benz HU6 are divided into three kinds:

A167, A213, and A247.

All of which are encrypted chips: R7F701403.

CGDI CG100X Repair Mileage for 2019- Benz HU6 R7F701403 Cluster No Filter

The locations of Mercedes-Benz HU6 clusters are as follows:

A-Class, GLE-Class and GLS-Class: usually have the repair area on the left lower part of the steering wheel guard plate.
E-Class: usually under the steering wheel.
B-Class, CLA-Class, GLA-Class, GLB-Class, GL-Class, H243 EQA and X243 EQB: usually under the driver’s seat.

CGDI CG100X Repair Mileage for 2019- Benz HU6 R7F701403 Cluster No Filter

CG100X V1.7.1.0 added Benz HU6 cluster models below:

Benz A-class(W247) 2019- R7F701403 (encrypted)
Benz B-class(W247) 2019- R7F701403 (encrypted)
Benz CLA(W247) 2019- R7F701403 (encrypted)
Benz GLA(W247) 2019- R7F701403 (encrypted)
Benz GLB(W247) 2019- R7F701403 (encrypted)
Benz GLE(W167) 2019- R7F701403 (encrypted)
Benz E-class(W213) 2020- R7F701403 (encrypted)
Benz CLS(W213) 2020- R7F701403 (encrypted)

How to repair Benz HU6 R7F701403 cluster mileage by CGDI CG100X?

Requirement:

CG100X Programmer
CG100X Pro V2 Adapter
CG100X D1 Adapter
CG100X V1.7.1.0 or newer version
Network connection

Highlight:

No soldering
No lift pin
No need filter

Step-by-step guide:

Step 1: Record Original Mileage

Before starting, note the original mileage. In this case, it’s 564.1 km.

CGDI CG100X Repair Mileage for 2019- Benz HU6 R7F701403 Cluster No Filter

Step 2: Remove and Inspect the HU6 Instrument Module

Remove the HU6 instrument module from the vehicle.
Disassemble the module and check both front and back

CGDI CG100X Repair Mileage for 2019- Benz HU6 R7F701403 Cluster No Filter

Step 3: Identify and Connect to the Processor

The mileage data is stored in the R7F701403 (encrypted) processor.
Open CG100X software and select:
Dashboard→ Europe → Mercedes → GLE W167 → 2019 → R7F701403 (encrypted)
Check the wiring diagram for proper connections.

Step 4: Connect the Module to CG100X

Use the Pro V2 Adapter to connect the Benz HU6 module to CG100X.
Remove three capacitors (220nf each) around the processor as shown in the wiring diagram.
Connect the D1 adapter (Do not extend the wire harness).
Provide DC 12V power supply.

Step 5: Perform Mileage Correction

1️⃣ Start the operation
2️⃣ Decrypt the chip & chip ID
3️⃣ Read and save DFlash & PFlash data
4️⃣ CG100X will automatically calculate the mileage online
5️⃣ Input the new mileage (e.g., 2,345 km)
6️⃣ Write the new mileage to the module

CGDI CG100X Repair Mileage for 2019- Benz HU6 R7F701403 Cluster No Filter CGDI CG100X Repair Mileage for 2019- Benz HU6 R7F701403 Cluster No Filter CGDI CG100X Repair Mileage for 2019- Benz HU6 R7F701403 Cluster No Filter

Step 6: Verify and Reassemble

Confirm the new mileage by reading the data again (should show 2,345 km).

CGDI CG100X Repair Mileage for 2019- Benz HU6 R7F701403 Cluster No Filter

Resolder the three capacitors to restore the module to its original state.
Reinstall the HU6 module back into the vehicle.

✅ Mileage correction is successful!

Yanhua ACDP2 also can correct mileage for Benz HU6 cluster perfectly.

1.For MB HU6 instrument module (A 167/A 213/A 247) via OBD

Require Yanhua Mini ACDP/ACDP2+ Module 37

2.For Mercedes-Benz A247 W177 A-Class HU6 cluster via OBD

Require Yanhua Mini ACDP/ACDP2+ Module 37+ YANHUA MB HU6-R7F71403-B Interface Board

3.For Mercedes-Benz HU6 (IC77) R7F701403 by Bench

Require Yanhua Mini ACDP/ACDP2+ Module 37+ (YANHUA MB HU6-R7F71403-B Interface Board) + Yanhua MB HU6 YH-OBD Platform

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