[suni_335]

Hey guys. I recorded my engine sound where you can hear when I close up my phone to the left side near the boost solenoids a strange noise which I’m not sure if it’s normal. Do your sound the same and is this the valvetronic or something else? Thanks for the attention!

VIDEO:

[akg123]

My car makes a similar sound toward the rear of the engine. I got paranoid so I sent in an oil sample for analysis, but still waiting for results. Following

[Groganrocket]

Originally Posted by suni_335

Hey guys. I recorded my engine sound where you can hear when I close up my phone to the left side near the boost solenoids a strange noise which I’m not sure if it’s normal. Do your sound the same and is this the valvetronic or something else? Thanks for the attention!

VIDEO:

That’s normal and on these cars the injectors are also pretty loud.

[eastsidaz]

Originally Posted by Groganrocket

That’s normal and on these cars the injectors are also pretty loud.

Just like an old sewing machine. There insanely loud without the engine cover.

[LaynEE92]

The chugging or helicopter sort of noise you hear i think is coming from the throw out bearing near the clutch or is the dmfw. My first 335i made the same noise.. everthing else is normal.

[Mike@N54Tuning.com]

Originally Posted by GovernUrMental

Just like an old sewing machine. There insanely loud without the engine cover.

+1

The engine cover muffles A LOT of noise..

Mike