BMW 430i noisy solenoid

[maeowenti]

Hi All, I have owned a 430i for the last few months. I have a niggling issue with one solenoid which is the loudest thing on the car! I investigated the source of the noise using a stethoscope (thinking I had a leaking manifold gasket or something) and it turns out it is this one solenoid. It sits on a fuel or hydraulic line at the front of the engine, inboard of the fuel injector rail. The car is performing great, and constanty astonishes me with its oomph, but this noise is bugging the heck out of me. Any ideas or opinions?