As the request of a friend, due to time constraints, the relevant content of "Benz Maintenance Manual WIS" was temporarily posted below. The specific steps will be listed later. If you have replaced the ATF according to these documents, I'll appreciate it if you make some videos or photos of the process and post them to Forum to help more people to perform this work.

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Notice: Replace the high-pressure pump is one of repairing project. There are several steps to reach the position of high-pressure pump. and there also have some sealing part should be replace, preparing before you start the work.