Description
This BMW EHC air suspension control module is a genuine OEM electronic component for BMW E61 5 Series Touring and E65 and E66 7 Series vehicles equipped with electronic height control. Primary OEM number 6770411. It is designed to read the ride height sensors and to control the air compressor and the air spring valves that set the height of the car.
Its job is to keep the body at the correct ride height regardless of load, to raise and lower the vehicle as the system requires and to monitor the compressor and valves for faults. A properly working EHC control module supports a level stance, stable handling, ride comfort and correct operation of the complete air suspension system, including self-leveling when the car is loaded.
Common signs of a faulty unit include a rear axle or corner that sags overnight, an air suspension or suspension fault message on the dashboard, a compressor that runs constantly or not at all, a car that sits too high or too low, or a ride that becomes harsh. When the module fails, the system may switch to an emergency mode, limit the ride height range, store fault codes and protect the air springs from damage.
This is a used original part, removed from a vehicle and tested before sale. Match the exact OEM number 6770411 before ordering, and check that the connector type matches your original unit. Professional installation is recommended, and a diagnostic scan, coding and a ride height calibration should always be performed after fitting where applicable.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
