If you choose to conduct maintenance on your MuZ ES 150 then it is usually recommended to have a Workshop Manual to keep just for personal reference if you want to know the right way to take out a certain part like the Gearbox and fit it again safely.
MuZ ES 150 Workshop Manuals offers you unique diagnostic information with regards to your car or truck so if something is not working it helps you understand what the situation is and how you can make it better. Then you are able to analyse if you can do this by yourself or in case the job is just too big you can actually make a reservation for your ES 150 into a suitable garage.
MuZ ES 150 manual