Fuse box in the engine compartment mounting block (the location, rated current and purpose of the fuses are indicated next to the block)
And some of it is in the luggage compartment behind the right side trim panel.
Fuses in the luggage compartment (the location, rated current and purpose of the fuses are indicated on the rear of the side trim panel of the luggage compartment)
Each individual fuse is used to protect a specific electrical circuit or several circuits at once.
Fuses of compact design, equipped with bayonet contacts, are used in the mounting blocks and, if necessary, are easily removed with fingers from their sockets in the block. If any of the power consumers fails, the condition of the corresponding fuse should always be checked first. Turn on the ignition and use a test lamp to probe the open terminals of each of the fuses. If the lamp lights up when connected to each of the terminals, then the fuse is OK. If voltage is present only on the power supply side, then the fuse has blown. Note also that the fuse body is usually made of transparent plastic, through which it is easy to determine the condition of the working jumper.
When replacing a blown fuse, make sure that the replacement element you prepare matches the type of the one that failed. Fuses rated for different nominal current may not physically differ from each other, but they are not interchangeable. Each electrical circuit has different operating parameters and requires a different degree of protection, so replacing a fuse rated for a certain current with a fuse with parameters that do not match is fraught with the most serious consequences (until a fire breaks out). The operating parameters of the fuse are usually marked on its plastic housing, in addition, color identification is used (see Specifications in Chapter On-board electrical equipment).
If the new fuse also fails immediately after installation, there is no point in replacing it further - first you should identify and eliminate the cause of the overload in the circuit. In most cases, this is a short circuit in the connecting wiring caused by damage to its insulation. Spare fuses are usually placed in free terminal blocks of the mounting block.
[Original publication posted on the website BMWman.ru]