CGDI CG100X Repair 2019- Benz HU6 R7F701403 Cluster Mileage

How to correct mileage for 2019- Mercedes-Benz HU6 R7F701403 cluster by CGDI CG100X? Check the requirement and operation guide below.

Requirement:

CG100X Programmer
CG100X Pro V2 Adapter>
CG100X D1 Adapter
Ensure the CG100X software is V1.7.1.0 or newer version
Make sure the network connection is normal

Key Benefits:

No soldering required
No need to lift pins
No filter needed

About the Mercedes-Benz HU6 System:

The HU6 (HEADUNIT6) is an advanced in-vehicle infotainment and instrument control system used in various Mercedes-Benz models, including:

2019- W247 (A-Class, B-Class, CLA-Class, GLA-Class, GLB-Class)
2019- W177 (CLA-Class, GLA-Class)
2019- W167 (GLE-Class, GLS-Class)
2020- W213 (E-Class, CLS-Class)
2021- H243/X243 (EQA, EQB)

Mercedes-Benz HU6 instrument computers contain three types:

A167, A213, and A247.
All use the encrypted R7F701403 processor

HU6 Cluster Locations:

A-Class, GLE-Class, GLS-Class→ Left lower part of the steering wheel guard plate
E-Class→ Under the steering wheel
B-Class, CLA-Class, GLA-Class, GLB-Class, EQB, EQA→ Under the driver’s seat

Supported HU6 Cluster Models (CG100X V1.7.1.0):

✅ A-Class (W247) 2019+ – R7F701403 (encrypted)

✅ B-Class (W247) 2019+ – R7F701403 (encrypted)

✅ CLA-Class (W247) 2019+ – R7F701403 (encrypted)

✅ GLA-Class (W247) 2019+ – R7F701403 (encrypted)

✅ GLB-Class (W247) 2019+ – R7F701403 (encrypted)

✅ GLE-Class (W167) 2019+ – R7F701403 (encrypted)

✅ E-Class (W213) 2020+ – R7F701403 (encrypted)

✅ CLS-Class (W213) 2020+ – R7F701403 (encrypted)

Step-by-Step Guide to Correct HU6 Cluster Mileage by CG100X:

Step 1: Record Original Mileage

Before starting, record the current mileage (e.g., 564.1 km).

Step 2: Remove and Inspect the HU6 Instrument Module

Remove the instrument cluster from the vehicle.

Disassemble and check both front and back sides.

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)

Follow 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 theD1 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 CGDI CG100X Programmer will automatically calculate the mileage online
5️⃣ Enter the desired new mileage (e.g., 2,345 km)
6️⃣ Write the new mileage to the module