Silencing BMW Droning Noise

This applies to 2012 BMW 7-series vehicles. A pulsing or droning noise may be heard from the front of the vehicle. The auxiliary water pump or the water hoses that lead from it may be in contact with adjacent components, or the auxiliary pump may be installed incorrectly on the rubber mount.

Mike Mavrigian

Information courtesy of Mitchell 1

Oct. 3, 2022

Remove the auxiliary water pump and remove the original water pump bracket. Install the new water pump equipped with the modified bracket. When reinstalling the pump, ensure that the connecting

hoses do not come into contact with adjacent components. The new auxiliary water pump with the modified bracket is available as P/N 64 11 9 253 081.

About the Author

Mike Mavrigian

Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.

Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.