BMW 545i Workshop Manuals
If you have to do auto repairs for your BMW 545i then it is always a good idea to own a Workshop Manual for a reference in the event that you need to know how you can remove a specific component for example Drive Shaft and fit it again in the correct manner.
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BMW 545i Workshop Manuals will give you exact diagnostic info for the vehicle so if something is faulty it will help you work out what the problem is and some ways to fix it. After that you can evaluate if you can do this by yourself or in the event the job is too big it is possible to book your 545i right into a local mechanic.