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.
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.
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.
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
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
1⃣ Start the operation
2⃣ Decrypt the chip & chip ID
3⃣ Read and save DFlash & PFlash data
4⃣ CG100X will automatically calculate the mileage online
5⃣ Input the new mileage (e.g., 2,345 km)
6⃣ Write the new mileage to the module
Step 6: Verify and Reassemble
- Confirm the new mileage by reading the data again (should show 2,345 km).
- 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
Yanhua ACDP2 Correct Benz A247 W177 A-Class HU6 Cluster Mileage
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
Yanhua ACDP Reset MB HU6 ODO Module (IC177) Mileage by Bench