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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > what preventative maintenance should i do for my n54?



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      06-05-2024, 06:04 PM   #1
335matt
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what preventative maintenance should i do for my n54?

I recently just got all the parts to go stage 2+ on mhd (fmic and catless dps) i’m currently on a stage 1 tune (stock tune) i already have a bunch of preventative maintenance done such as high pressure/low pressure fuel pump, new spark plugs/coil packs, after market charge pipe, and much more, just wondering what else i should do (my n54 has 56k miles)
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      06-05-2024, 09:51 PM   #2
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how is your PCV functionality? are you using catch cans? have you replaced the flapper valve? how about brake pads? engine oil? OFHG? crank seal guard installed just in case?
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      06-06-2024, 06:49 AM   #3
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2011 335is DCT BQ Tuning / BMS CAI / VRSF kittyless DP's / Synapse BOV and charge pipe / 7" VRSF Race FMIC / Walbro 535 and 450 on BMP4 / E90 tune / Diff Brace / PR Coils / Relocation Inlets / DAW Stage3+ Turbos / MMP port injection / xHP Stage 3 / FPR and -6 fuel lines
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      06-06-2024, 07:42 AM   #4
whyzee125
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Make sure your injectors aren't leaking and you should be in good shape
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