Serpentine belt

Dormermike · 12-11-2018, 08:36 AM

Hi

Can someone confirm the serpentine belt change mileage for an n53 engine please?

Mine is on 60k miles at the moment and no signs of wear but I don't want the engine to lunch on it either.

Thanks
Mike

Phil325i · 12-11-2018, 03:13 PM

Having seen the results of a shredded belt being sucked into the engine via the crankshaft pulley seal, I changed mine at 50K and will be doing so again soon, at 100K.

Dormermike · 12-12-2018, 03:22 AM

Thanks Phil, will get one ordered.

Genuine BMW is best bet I imagine.

msjt · 12-12-2018, 05:37 AM

It’s not really the belt that wears on it’s own. Leaking ofhg, loose power steering pump/pulley, or pulley hitting the subframe usually causes the belt to shred.

Dormermike · 12-12-2018, 11:35 AM

Mines an f10 so no power steering but perhaps worth chucking a new tensioner on?

Apologies if this is a common question btw I did search but didn't find anything.

Only oil leak on my engine is at the back of the sump, small leak, misting not dripping.

Needbmwpartzz · 12-12-2018, 12:25 PM

i would change after 100000 miles with tensioner/pulleys to be safe....and make sure no leaks as previously mentiined.

12-11-2018, 08:36 AM	#1
Dormermike Captain 104 Rep 674 Posts Drives: Bmw f10 Join Date: Dec 2015 Location: Uk iTrader: (0)	Serpentine belt Hi Can someone confirm the serpentine belt change mileage for an n53 engine please? Mine is on 60k miles at the moment and no signs of wear but I don't want the engine to lunch on it either. Thanks Mike
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12-11-2018, 03:13 PM	#2
Phil325i Brigadier General 639 Rep 3,212 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	Having seen the results of a shredded belt being sucked into the engine via the crankshaft pulley seal, I changed mine at 50K and will be doing so again soon, at 100K. __________________ 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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12-12-2018, 03:22 AM	#3
Dormermike Captain 104 Rep 674 Posts Drives: Bmw f10 Join Date: Dec 2015 Location: Uk iTrader: (0)	Thanks Phil, will get one ordered. Genuine BMW is best bet I imagine.
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12-12-2018, 05:37 AM	#4
msjt First Lieutenant 160 Rep 305 Posts Drives: e92 335i Join Date: Jan 2013 Location: queens, nyc iTrader: (0)	It’s not really the belt that wears on it’s own. Leaking ofhg, loose power steering pump/pulley, or pulley hitting the subframe usually causes the belt to shred.
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12-12-2018, 11:35 AM	#5
Dormermike Captain 104 Rep 674 Posts Drives: Bmw f10 Join Date: Dec 2015 Location: Uk iTrader: (0)	Mines an f10 so no power steering but perhaps worth chucking a new tensioner on? Apologies if this is a common question btw I did search but didn't find anything. Only oil leak on my engine is at the back of the sump, small leak, misting not dripping.
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12-12-2018, 12:25 PM	#6
Needbmwpartzz Colonel 855 Rep 2,792 Posts Drives: 2009 bmw 328i x-drive Join Date: Feb 2014 Location: Kitchener/Waterloo iTrader: (0)	i would change after 100000 miles with tensioner/pulleys to be safe....and make sure no leaks as previously mentiined.
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