Have a faulty air compressor for the self leveling system? Replace it with this Genuine BMW part. Keep in mind, the reason why the compressor goes bad or does not work, is because there is a leak somewhere in the system causing the compressor to over work and eventually burn out the compressor. Prior to replacing part check over system for any leaks.
The compressor relay should be replaced after installation of the compressor unit, as failure to do so will void the product’s warranty. When the compressor is installed, we recommend to check the complete air suspension system for any leakage. Leaky air springs should be replaced immediately to maintain optimum compressor performance.