N54 Timing Chain Maintenance

BadOneThreeFive · 03-10-2014, 08:11 AM

Does anyone know when to replace them? I read online the following:

Engine Drive Belts- Inspect every 15,000 miles and replace every 120,000 miles.

They talking about the serpentine belt? Or the timing chain as well? Thanks.

MightyMouseTech · 03-10-2014, 08:37 AM

Belt. They are talking about the belt.

If your oil level is always good, and the oil is in good condition, the chains should never require replacement. Low oil level and sludged up motors causes chains to wear.

03-10-2014, 08:11 AM	#1
BadOneThreeFive Lieutenant 60 Rep 508 Posts Drives: 2008 BMW 135i Join Date: Mar 2010 Location: Guam iTrader: (1)	N54 Timing Chain Maintenance Does anyone know when to replace them? I read online the following: Engine Drive Belts- Inspect every 15,000 miles and replace every 120,000 miles. They talking about the serpentine belt? Or the timing chain as well? Thanks. __________________ 08 135i N54 - Vargas Stage 1 Turbos with Billet wheels - BMS Intake, BMS Charge pipe, AR DPs, Stock mids, berk race muffler delete - JB4 G5 Map 3 75 Meth Additive with RACE DME flash - MS-109 and 100% meth injection (Single CM12 nozzle)
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03-10-2014, 08:37 AM	#2
MightyMouseTech Major General 4338 Rep 6,196 Posts Drives: 13 135i 6MT LeMans Blue MSport Join Date: Feb 2013 Location: Ottawa, Canada iTrader: (0)	Belt. They are talking about the belt. If your oil level is always good, and the oil is in good condition, the chains should never require replacement. Low oil level and sludged up motors causes chains to wear.
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