Do you need to replace drain & fill plugs on diff & manual tranny?

pjr710 · 10-22-2018, 05:42 AM

I'm replacing my rear diff and tranny fluid on my 6MT e92 2007 ... can I reuse the old plugs or am I better off just buying new ones?

bvanlieu · 10-22-2018, 07:25 AM

Need? no. Recommended as they typically can be buggered up pretty good and are $5 or so each.

Original plug over 10 years old? Spend the $5

- b

pjr710 · 10-22-2018, 08:46 AM

Quote:

Originally Posted by bvanlieu

Need? no. Recommended as they typically can be buggered up pretty good and are $5 or so each.

Original plug over 10 years old? Spend the $5

- b

Cool thanks. Def gunna replace them!

Efthreeoh · 10-22-2018, 08:56 AM

IMO, it is a waste of money if they are in good shape. Spend the money on good tools instead. You need a breaker bar for the diff plug and a IIRC, 16 or 17MM Allen socket. Using substandard tools is what messes up the plugs.

Phil325i · 10-22-2018, 04:18 PM

Only worth replacing if your changing to magnetic plugs (a good idea IMHO).

10-22-2018, 05:42 AM	#1
pjr710 Lieutenant 93 Rep 541 Posts Drives: 335i Join Date: Sep 2015 Location: PA iTrader: (0)	Do you need to replace drain & fill plugs on diff & manual tranny? I'm replacing my rear diff and tranny fluid on my 6MT e92 2007 ... can I reuse the old plugs or am I better off just buying new ones?
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10-22-2018, 07:25 AM	#2
bvanlieu Second Lieutenant 57 Rep 268 Posts Drives: Alpine 335d Join Date: Nov 2013 Location: PA iTrader: (0)	Need? no. Recommended as they typically can be buggered up pretty good and are $5 or so each. Original plug over 10 years old? Spend the $5 - b
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10-22-2018, 08:56 AM	#4
Efthreeoh General 17205 Rep 18,696 Posts Drives: The E90 + Z4 Coupe & Z3 R'ster Join Date: May 2012 Location: Virginia iTrader: (0)	IMO, it is a waste of money if they are in good shape. Spend the money on good tools instead. You need a breaker bar for the diff plug and a IIRC, 16 or 17MM Allen socket. Using substandard tools is what messes up the plugs.
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10-22-2018, 04:18 PM	#5
Phil325i Brigadier General 615 Rep 3,193 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	Only worth replacing if your changing to magnetic plugs (a good idea IMHO). __________________ 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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