N53 crickets

Dormermike · 04-04-2020, 03:24 PM

Hi

I know the n53 is known for a rough sounding idle compared to say the N52 and that the noise / clatter is the piezo injectors and the HPFP solenoid. There is another noise that sounds like brake disc rubbing slightly, like a high pitched crickets in the distance type sound.

Maybe that's just the solenoids etc but has anyone managed to either quieten it down or drown it out with a louder exhaust or intake mods?

Thx
Mike

Phil325i · 04-05-2020, 05:58 AM

Hard to tell which noise you're referring to without a soundtrack. Depending on miles covered, the rubbing sound could be serpentine belt/pulley/tensioner...

But you're right, the N53 isn't quiet (still a great engine though IMHO).

One thought - if your car isn't fitted with the under-bonnet blanket (or it's worn out) worth considering this to reduce underbonnet noise. Also the noise-absorbing foam under the cosmetic cylinder head cover tends to deteriorate with time.

04-04-2020, 03:24 PM	#1
Dormermike Captain 102 Rep 681 Posts Drives: Bmw f10 Join Date: Dec 2015 Location: Uk iTrader: (0)	N53 crickets Hi I know the n53 is known for a rough sounding idle compared to say the N52 and that the noise / clatter is the piezo injectors and the HPFP solenoid. There is another noise that sounds like brake disc rubbing slightly, like a high pitched crickets in the distance type sound. Maybe that's just the solenoids etc but has anyone managed to either quieten it down or drown it out with a louder exhaust or intake mods? Thx Mike
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04-05-2020, 05:58 AM	#2
Phil325i Brigadier General 616 Rep 3,194 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	Hard to tell which noise you're referring to without a soundtrack. Depending on miles covered, the rubbing sound could be serpentine belt/pulley/tensioner... But you're right, the N53 isn't quiet (still a great engine though IMHO). One thought - if your car isn't fitted with the under-bonnet blanket (or it's worn out) worth considering this to reduce underbonnet noise. Also the noise-absorbing foam under the cosmetic cylinder head cover tends to deteriorate with time. __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
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