I cannot start BMW 545i normally.

The service and repair manual with diagram will provide step by step help to locate and fix the problem on your own easily and you will get the manual from the given link https://toolsnyou.com

BMW batteries are usually under the rear seat, however there are special terminals under the hood which can also be used. It really makes little sense to work on your own car without buying a cheap shop manual, especially a BMW.

You should not have paid for the repair till you saw the car started ,the fault is entirely yours .Sorry i have no idea why this vehicle will not start without a play under the bonnet so get the so called electrician back and play dumb and dont pay one cent till he starts the car ,no start no pay its that simple

when jump starting a car, be very careful not to contact the wrong post, this can result in a multude of probems.

The battery for your car is located in the trunk. There are jumper terminals located under the hood in the front of your car. There is a Red (+) terminal that is under a little black cover on the passenger side of the engine bay near the firewall. Right near that is a silver/gray bolt that is bolted to the frame of the car. This is the negative terminal.

Make sure both cars are and all accessories are off:
1) Connect the Postive cable to the dead battery
2) Connect the Positive cable to the good (BMW) terminal
3) Connect the Negative cable to the good (BMW) terminal
4) Connect the Negative cable to the dead battery
5) Start the BMW. (if you have 2 people then gently rev the engine)
6) Start the dead car.
7) Let both cars idle for a while before disconnecting any cables
8) Remove in the opposite order.

The battery location for a 2005 BMW 545i is in the trunk. Open your trunk, and on the right side of the car (passenger), look for two black plastic screws (flathead fit) along the paneling. Use a flathead (from the tool kit amongst the trunk lid), or a paper-clip to turn both of these plastic screws 90 degrees, you should be able to pull these out with your fingers afterwards. The plastic screws hold in the protective paneling, you'll have to to lift up trunk-liner (covers your spare tire), then pull the paneling outwards; underneath, you'll find the battery and terminals.

If it is a newer model, it is in the trunk under a panelif you have an older model, check underneath the rear passenger-side seat. For a jump, there is a positive contact you can use under the hood and of course connect the negative to the engine block.

should be under the rear seat on the right hand side. happy new year

red is postivie,black is negative, make sure where you are jumping it from is the same, make sure the other vehicle is running

I found the owners manual and it says take it back to BMW!

Most other posts I found on the net say it is under the passengers side rear seat. But I guess that depends on if you have a right hand or left hand drive.

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