I have managed to read 1J35D MCU of Mercedes-Benz W203 EZS with Xprog-m 5.0 ECU programmer.Here are some useful tips/ infomation for sharing. Wish i help you out also.
The China Xprog-m i used
Also, someone in a forum says the best way to read this MCU is to use R270 BDM programmer – it’s so easy to read this MCU’S. He said he did it many times always with success. I will try it if possible.