335 N55 w/ 77K

skaper · 01-27-2020, 10:38 PM

Hey,

While the car has been up-to-date with recalls, standard plug and coil changes, I am curious if there are other items I should watch for or even possibly replace before they become a serious factor?

Really appreciate the tips!

bimmerfan1972 · 01-28-2020, 09:16 AM

I would like to know this as well. Filters would be a good place to start, cabin and air.

Phil325i · 01-28-2020, 01:08 PM

At that mileage I would think about:

Gearbox fluid change
Diff fluid change
Serpentine belt and tensioner replace

Just my five cents...

bimmerfan1972 · 01-28-2020, 02:13 PM

Quote:

Originally Posted by Phil325i

At that mileage I would think about:

Gearbox fluid change
Diff fluid change
Serpentine belt and tensioner replace

Just my five cents...

How do you know if your tensioner is bad? Just replaced my belt and didn't see any issues.

C2YT · 01-28-2020, 03:56 PM

If you haven't had to replace the water pump/thermostat you will soon. I would expect it anytime between now and 100k.

Mine went at 50k on the dot, my brothers at 82k. Just make sure you are ready for it to happen.

skaper · 01-28-2020, 04:47 PM

Quote:

Originally Posted by bimmerfan1972

I would like to know this as well. Filters would be a good place to start, cabin and air.

Just did both of these. Even though the previous owner took decent car of the car, that cabin filter was naaaaasty!

Quote:

Originally Posted by Phil325i

At that mileage I would think about:

Gearbox fluid change
Diff fluid change
Serpentine belt and tensioner replace

Just my five cents...

Much appreciated! I wouldn't have looked at the gearbox fluid. I'll check out that belt and tensioner as well.

Quote:

Originally Posted by C2YT

If you haven't had to replace the water pump/thermostat you will soon. I would expect it anytime between now and 100k.

Mine went at 50k on the dot, my brothers at 82k. Just make sure you are ready for it to happen.

I'll need to confirm but I think the previous owner did the pump. Are the replacements good for another 50K or are these a continuous issue?

Phil325i · 01-29-2020, 10:52 AM

Quote:

Originally Posted by bimmerfan1972

How do you know if your tensioner is bad? Just replaced my belt and didn't see any issues.

You don't necessarily, though spinning it without the belt might reveal noises. But if it seizes and the belt shreds and gets ingested into the engine via the lower crankshaft pulley seal (yes, this does happen) then you'll wished you'd changed it...

bimmerfan1972 · 01-29-2020, 11:10 AM

Yeah, I've read about that issue. Probably best to change it at some point. Not too difficult? Have to remove fan shroud?

fortywater · 02-05-2020, 01:44 PM

Tensioner and Pulley Kit. Transmission fluid and filter. Valve cover/valve cover gasket.

Full trans service is usually done at 100k (Filter, pan, mech seals, new fluid). Fluid changes I've heard between every 40-60k miles.

I would 100% do your accessory belt and tensioner/pulleys soon. It's not expensive but breaking one can leave you spending thousands. Ask me how I know....

Also the valve covers on these cars are known to leak. I wouldn't change it until you need to put get on there with a flashlight and look for oil seepage. Most start to fail around 80-90k miles.

rbryantaz · 02-05-2020, 01:49 PM

Have you had the valves de-carboned (walnut blasted)? My 2008 has about the same miles and the valves were really nasty.

-Rich

01-27-2020, 10:38 PM	#1
skaper Private First Class 43 Rep 106 Posts Drives: E90 N55 M-Sport Join Date: Oct 2012 Location: Portland iTrader: (1)	335 N55 w/ 77K - Suggested Maintenance Hey, While the car has been up-to-date with recalls, standard plug and coil changes, I am curious if there are other items I should watch for or even possibly replace before they become a serious factor? Really appreciate the tips! __________________ Kennethavery.com // Portland Real Estate Wagner Evo 1 IC // Active Autowerke CP // JB4 + BEF // CAtuned Coilovers // AR Design D/P // Future Classic Spacers // E46 OE CSL Wheels // (PURE Stage 2 w/ wedge next!)
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01-28-2020, 09:16 AM	#2
bimmerfan1972 First Lieutenant 101 Rep 300 Posts Drives: 2011 BMW 335xi Join Date: Nov 2019 Location: Nashville, TN, USA iTrader: (0) Garage List 2011 BMW 335i x-dri ... [0.00]	I would like to know this as well. Filters would be a good place to start, cabin and air. __________________ 2011 BMW 335i xDrive E92 N55 Alpine White\M-Sport /BMS CAF/HPS CAI/VRSF 5" FMIC/VRSF CP/VRSF Inlet and Outlet/VRSF Catless DP/NGK 1-Step Colder Plugs/xHP Stage 1//MHD Stage 2+
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01-28-2020, 01:08 PM	#3
Phil325i Brigadier General 645 Rep 3,227 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	At that mileage I would think about: Gearbox fluid change Diff fluid change Serpentine belt and tensioner replace Just my five cents... __________________ 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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01-28-2020, 03:56 PM	#5
C2YT Private First Class 68 Rep 159 Posts Drives: 2011 e90 335i Join Date: Dec 2017 Location: Taylor, MI iTrader: (0)	If you haven't had to replace the water pump/thermostat you will soon. I would expect it anytime between now and 100k. Mine went at 50k on the dot, my brothers at 82k. Just make sure you are ready for it to happen. __________________ 2011 BMW 335i E90 - FBO w/ Pure Stage 2 Turbo on JB4 BEF
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01-29-2020, 11:10 AM	#8
bimmerfan1972 First Lieutenant 101 Rep 300 Posts Drives: 2011 BMW 335xi Join Date: Nov 2019 Location: Nashville, TN, USA iTrader: (0) Garage List 2011 BMW 335i x-dri ... [0.00]	Yeah, I've read about that issue. Probably best to change it at some point. Not too difficult? Have to remove fan shroud? __________________ 2011 BMW 335i xDrive E92 N55 Alpine White\M-Sport /BMS CAF/HPS CAI/VRSF 5" FMIC/VRSF CP/VRSF Inlet and Outlet/VRSF Catless DP/NGK 1-Step Colder Plugs/xHP Stage 1//MHD Stage 2+
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02-05-2020, 01:44 PM	#9
fortywater Private 15 Rep 86 Posts Drives: E90 335i M-Sport Join Date: Jan 2020 Location: San Diego iTrader: (0)	Tensioner and Pulley Kit. Transmission fluid and filter. Valve cover/valve cover gasket. Full trans service is usually done at 100k (Filter, pan, mech seals, new fluid). Fluid changes I've heard between every 40-60k miles. I would 100% do your accessory belt and tensioner/pulleys soon. It's not expensive but breaking one can leave you spending thousands. Ask me how I know.... Also the valve covers on these cars are known to leak. I wouldn't change it until you need to put get on there with a flashlight and look for oil seepage. Most start to fail around 80-90k miles.
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02-05-2020, 01:49 PM	#10
rbryantaz Lieutenant 400 Rep 554 Posts Drives: 2007 E70 4.8i, 2008 E90 335i Join Date: Jul 2015 Location: Phoenix, AZ area iTrader: (4) Garage List 2008 BMW 335i [7.67] 2007 BMW X5 4.8i [10.00]	Have you had the valves de-carboned (walnut blasted)? My 2008 has about the same miles and the valves were really nasty. -Rich __________________ 2007 E70 X5 4.8i with 10" android screen Running 265/60/18 AT34s All Terrains (Mainly for road trips) 2008 E90 335i with 10" android screen, 7" intercooler, inlets, Dinan intake, JB4 BEF, E85 conversion, Mfactory LSD, M3 suspension, EDC shocks with custom controller.
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