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Hago copia y pega Car & Driver: F30 335i interior noise: 3dB louder at 70mph than F30 328i & E90 330i - BMW 3-Series Forum (F30 / F32) | F30POST
"Car & Driver: F30 335i interior noise: 3dB louder at 70mph than F30 328i & E90 330i
http://media.caranddriver.com/files/...april-2012.pdf
BMW 335i (F30) Interior Noise
Idle 42 dBA
Full-throttle 77 dBA
70 mph 69 dBA
Car & Driver, April 2005:
BMW 330i (E90) Interior Noise
Idle 41 dBA
Full-throttle 73 dBA
70 mph 66 dBA
I couldn't find an instrumented test of the E90 335i sedan in back issues of C&D.
Car & Driver:
2007 BMW 335i coupe (E92) Interior Noise
Idle 49 dBA
Full-throttle 75 dBA
70 mph 69 dBA
4-cylinder:
http://media.caranddriver.com/files/...ison-tests.pdf
2012 BMW 328i (F30) (with sunroof) Interior Noise
Idle 40 dBA
Full-throttle 71 dBA
70 mph 66 dBA
http://media.caranddriver.com/files/...2-bmw-528i.pdf
2012 BMW 528i (F10) Interior Noise
Idle 38 dBA
Full-throttle 70 dBA
70 mph 64 dBA
The 2 dBA difference at idle between the current 328i & 335i suggests that differences at speed are due mainly to the louder 6-cylinder engine. The 2 dBA difference at idle between the 328i and 528i must be due to better noise insulation in the 5-series and possibly a noisier exhaust in the 328i."
"Car & Driver: F30 335i interior noise: 3dB louder at 70mph than F30 328i & E90 330i
http://media.caranddriver.com/files/...april-2012.pdf
BMW 335i (F30) Interior Noise
Idle 42 dBA
Full-throttle 77 dBA
70 mph 69 dBA
Car & Driver, April 2005:
BMW 330i (E90) Interior Noise
Idle 41 dBA
Full-throttle 73 dBA
70 mph 66 dBA
I couldn't find an instrumented test of the E90 335i sedan in back issues of C&D.
Car & Driver:
2007 BMW 335i coupe (E92) Interior Noise
Idle 49 dBA
Full-throttle 75 dBA
70 mph 69 dBA
4-cylinder:
http://media.caranddriver.com/files/...ison-tests.pdf
2012 BMW 328i (F30) (with sunroof) Interior Noise
Idle 40 dBA
Full-throttle 71 dBA
70 mph 66 dBA
http://media.caranddriver.com/files/...2-bmw-528i.pdf
2012 BMW 528i (F10) Interior Noise
Idle 38 dBA
Full-throttle 70 dBA
70 mph 64 dBA
The 2 dBA difference at idle between the current 328i & 335i suggests that differences at speed are due mainly to the louder 6-cylinder engine. The 2 dBA difference at idle between the 328i and 528i must be due to better noise insulation in the 5-series and possibly a noisier exhaust in the 328i."