To fix lean conditions on both bank 1 and bank 2 in a BMW 540i, start by checking for vacuum leaks in the intake system, as these can cause an improper air-fuel mixture. Inspect the mass air flow (MAF) sensor and ensure it's clean and functioning correctly, as a faulty MAF can lead to incorrect readings. Additionally, examine the fuel system for issues such as a clogged fuel filter or failing fuel pump, which can restrict fuel delivery. If these components are functioning properly, consider checking the oxygen sensors and engine control unit (ECU) for further diagnostics.
18.5 to 19.5 gallons for a 2001-2003 BMW 540i
The battery on the E39 540i is in the boot on the r/h/s. Remove the plastic bin, and you will see it. BMW 540i owner, Chichester.
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e39 540
The BMW 540i seems to have a V8 engine with 32V. At the revolutions per minute of 5400, the BMW would have a horsepower of 282. This can vary according to the condition of the car as well.
Its in the trunk where the battery is.
8
The power steering fluid reservoir is located next to the oil filter on a 1999 BMW 540i. The reservoir will have ATF written on it.
9 quarts on the e39
Go to http://www. bmwairbag.com
inside the oil filter housing