CGDI Prog Programmer CGDI MB, CG100, CGDI BMW, CG Pro etc: CG FC200 Read and Write Benz ME17.7 ECU on Bench

11/25/2021

CG FC200 Read and Write Benz ME17.7 ECU on Bench

The new CG FC200 ecu programmer is capable of reading the original data of Mercedes Benz 272 with hybrid engine ECU and then write into a new same ECU on Bench.

Car info:

Vehicle model: 2012 Mercedes Benz S350L (W221)

Old mileage: 121004km

Engine computer type: ME17.7

Engine parameters: 272 hybrid, 6-cylinder 3.5L

Computer board information: BOSCH ME17.7 (TC1796)

ECU Programmer to use: FC200 (on Bench)

Operation guide:

Here is a Mercedes Benz 272 engine ECU with hybrid engine not gasoline engine, car can’t start. The client don’t want to repair it, but want to clone the data to a new 272 engine ECU.

CG FC200 Read and Write Benz ME17.7 ECU 1

CG FC200 Read and Write Benz ME17.7 ECU 2

CG FC200 Read and Write Benz ME17.7 ECU 3

Okay, we use CG FC200 to firstly clone the original data of Mercedes 272 engine ECU.

CG FC200 Read and Write Benz ME17.7 ECU 4

Connect CG FC200 device to the computer.

Open CG FC200 software, select “Mercedes Benz”, then “350 4MATIC M272 272”, it shows “Bosch ME17.7 TC1796”.

CG FC200 Read and Write Benz ME17.7 ECU 5

Choose “Wiring diagram” from the menu, then there is a clear wiring diagram to connect the cable between CG FC200 and Mercedes 272 engine ECU.

CG FC200 Read and Write Benz ME17.7 ECU 6

CG FC200 Read and Write Benz ME17.7 ECU 7

Caution: if the wire is connected incorrectly, it will burn the engine or lost data.

Next is to read the data.

So, click on “Indentify” to check if the wire is connected correctly, alright it says connects successfully, mean the wire is connected rightly, you can see it shows the serial number and hardware ID.

CG FC200 Read and Write Benz ME17.7 ECU 8

Click on “Read DFlash”, this file is only 128KB and can be read out in a second, after read successfully, save it.

CG FC200 Read and Write Benz ME17.7 ECU 9

Then “Read PFlash”, this file is 4MB and it takes 2-3 minutes, after read successfully, save it.

CG FC200 Read and Write Benz ME17.7 ECU 10

Okay, read out successfully the original data from the old Benz 272 engine ECU.

Disconnect the wire from the old Benz 272 engine ECU.

The car owner wanna replace a new Benz 272 engine.

So, next is to clone the original data to the new ECU and install back the car to test.

Instead the new ECU, here we find out the ECU box removed from the car, before cloning the original data to this ECU.

CG FC200 Read and Write Benz ME17.7 ECU 11

Firstly read the data and backup:

Enter the same option ” Bosch ME17.7 TC1796″;
Click on “Identify”;
Click on “Read DFlash” and save;
Click on “Read PFlash” and save;
Click on “Write DFlash” (it will prompt this operation will overwrite the original data), then select the backup data to write.
Click on “Write PFlash”, it will take a longer time, wait until CG FC200 prompts PFlash data is written successfully.