What is the lifting mode of the old BMW 730li?
2 Answers
Press and hold the air suspension button until the indicator light on the button flashes. Only BMW 7 Series models equipped with air suspension have the lifting mode. The specific details are as follows: Holding state: When the vehicle is lifted by a jack and leaves the ground, the air suspension system will close the relevant solenoid valves, while the computer memorizes the vehicle height to maintain the original height after the vehicle lands. Normal state: This refers to the engine running state. During driving, if the vehicle height changes beyond a certain range, the air suspension system will adjust the vehicle height at regular intervals. Wake-up state: When the air suspension system is activated by the remote key, door switch, or trunk lid switch, the system will check the vehicle height through the body level sensor. If the vehicle height is lower than the normal height by a certain degree, the air tank will provide pressure to raise the vehicle to the normal height.
The lift mode on the older BMW 730Li is essentially a maintenance function—I've worked on quite a few of these cars. When you need to use a lift to raise the car for undercarriage repairs, you must activate it first to lock the air suspension height. Otherwise, if the suspension system gets stretched, the airbags and linkages can easily get damaged. To engage it, start the engine but don’t drive off, shift into P (Park), then find a button combination on the dashboard or center console—I recall it’s usually holding the 'Raise' button for a few seconds. Once done, the system locks, and lifting the car becomes safe. This feature is especially crucial for older cars since air suspensions are delicate, and repairs aren’t cheap. Most car wash workers don’t know about this, so owners need to remind them. Bottom line: maintaining a BMW requires attention to detail, and using service mode saves hassle.
