If it's not an iL, it shouldn't be that difficult at all. All it takes, is to pry the back seat up and it'll be right there underneath the seat. I'm not as familiar with the 1994 735 but if it's anything like my previous 7 which was an 88 735, all I did to get to my battery, was pry the seat up. If memory serves me correctly, it popped out rather easily.
It is very easy to replace the battery on a 1994 BMW 318i. The battery can be found in the trunk on the right hand side of the car. All you need to do is to use a screwdriver to take the plastic clip holding the battery in place off. After the clip is removed, take the battery out and then replace with a new one.
The 1989 BMW 735 oil drain plug is located on the bottom of the oil pan. The oil drain plug can be removed with a 9/16 ratchet.
under back seat
In the trunk
take the battery back out
In the trunk on the right side.
Under the back seat
The battery in your 325i is in the trunk on the passengers side under a plastic cover.
It is under the back seat, on the passenger side.
In a 1999 BMW 735, the fuse box is located in the passenger compartment, specifically on the driver's side. You can find it behind a cover near the footwell area. There may also be an additional fuse box in the engine compartment, near the battery. Always refer to the owner's manual for specific details and diagrams.
The power of the engine and the maximum speed of the BMW 735 injection 1978 is 240 hp (179 kW) and 180 km/h or 112 mph. respectively.
IF IT IS THE SAME LOCATION AS A '93 THEN IT IS UNDER YOUR BACK SEAT PASSENGER SIDE