BMW 540i Repair and Maintenance
A guide to problems, costs, maintenance and repair for your BMW 540i
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BMW 540i ProblemsBlower Final Stage Fan Resistor May Fail
The blower final stage fan resistor is known to fail. Symptoms are the heater fan speed varies regardless of the setting, the fan will not turn off when the car is switched off, or the fan will not switch on at all.
The front thrust rod bushings—also referred to as tension strut bushings—are known to fail occasionally. The oil-filled rubber mounts weaken and crack over time, causing a mushy road feel and shuddering in the steering wheel when going over bumps. These worn bushings should be replaced.
BMW 540i QuestionsFuel gauge stay on empty. Change sending unit on drivers side tank checked voltage to sending unit. Ps new unit (1 answer)
Fuel gauge stay on empty. Change sending unit on drivers side tank checked voltage to sending unit. Ps new unit Installed
timing guides replacement
BMW 540i RecallsDriver's Front Air Bag Defective
In a crash that deploys the driver's front air bag, the inflator of the air bag can rupture, causing metal debris to strike vehicle occupants. Dealers will replace the front driver's air bag module free of charge to correct the concern.