120K refresh

uberschnell · 04-29-2022, 02:55 PM

Doing a 120K refresh on my n54

Replacing belts, tensioner, water pump, thermostat, most of the cooling hoses, expansion tank, valve cover, installing aux radiator.

Radiator has no leaks, but it's original, do I go ahead and change it out anyways?

Dave92N54 · 04-29-2022, 04:01 PM

I probably would. Simple enough to do and not terribly expensive. My end tank started leaking on mine at 122k.

uberschnell · 04-29-2022, 04:29 PM

Quote:

Originally Posted by Dave92N54

I probably would. Simple enough to do and not terribly expensive. My end tank started leaking on mine at 122k.

True, already got most everything out.

By chance did you go with aftermarket?

Dave92N54 · 04-29-2022, 04:30 PM

Quote:

Originally Posted by uberschnell

True, already got most everything out.

By chance did you go with aftermarket?

I bought the nissens from FCP, no issues now at 141k

F13.KENN · 04-29-2022, 08:09 PM

If you do change it, get a csf. Im on my 3rd or 4th? stock radiator in the last 3 years. The plastic end tanks keep cracking or weeping coolant.

Replaced it 6-7 months ago & last week i walked out to my car at work, started it, low coolant light came on.. looked around at it and one of the plastic end tanks are weeping coolant again

:

335i54n · 04-29-2022, 08:54 PM

^ you got underlying issues, sport cooling will help extend the life of plastic parts. both my BMW is still on original rads and expansion tanks

F13.KENN · 04-30-2022, 05:36 AM

Quote:

Originally Posted by 335i54n

^ you got underlying issues, sport cooling will help extend the life of plastic parts. both my BMW is still on original rads and expansion tanks

Ive run sport cooling the last 100k miles.. just have had bad luck. Talking about bad luck, my fathers 135i is about to get its 5th water pump within the last 4-5 years he has had it. He is only at 136k miles

Jklad · 04-30-2022, 07:32 AM

Quote:

Originally Posted by uberschnell

Doing a 120K refresh on my n54

Replacing belts, tensioner, water pump, thermostat, most of the cooling hoses, expansion tank, valve cover, installing aux radiator.

Radiator has no leaks, but it's original, do I go ahead and change it out anyways?

I would. Mine started to leak around 120k. Replace some of the hoses too, the skinny hoes on top going across the front, and the hose that goes into the engine block where it tends to fail. Honestly just replace all the nearby hoses you can get to.

uberschnell · 04-30-2022, 11:08 AM

Quote:

Originally Posted by Jklad

I would. Mine started to leak around 120k. Replace some of the hoses too, the skinny hoes on top going across the front, and the hose that goes into the engine block where it tends to fail. Honestly just replace all the nearby hoses you can get to.

Plan on doing that. I already busted that skinny hose just pulling it out of the clips. The hoses are brittle! Should also mention that it's a 2008, so 14 years old.

zero2sixtyZ · 04-30-2022, 11:20 AM

Quote:

Originally Posted by Jklad

I would. Mine started to leak around 120k. Replace some of the hoses too, the skinny hoes on top going across the front, and the hose that goes into the engine block where it tends to fail. Honestly just replace all the nearby hoses you can get to.

RobC DIY to upgrade that hose: https://www.e90post.com/forums/showthread.php?t=870353

uberschnell · 04-30-2022, 11:30 AM

Quote:

Originally Posted by zero2sixtyZ

RobC DIY to upgrade that hose: https://www.e90post.com/forums/showthread.php?t=870353

Holy crap that's bad ass - on my list now

Jaronbwall · 05-02-2022, 10:25 AM

Quote:

Originally Posted by uberschnell

Holy crap that's bad ass - on my list now

RobC had a pretttttty badass build back in the day. Wonder where that car is now?.. I was broke college grad when I joined e90post and his posts kept popping up making me jealous.

Engine bay porn.

Jaronbwall · 05-02-2022, 10:26 AM

Quote:

Originally Posted by SCHWARZ_E92

Ive run sport cooling the last 100k miles.. just have had bad luck. Talking about bad luck, my fathers 135i is about to get its 5th water pump within the last 4-5 years he has had it. He is only at 136k miles

WHY? HOW? This makes no sense.

iqraceworks · 05-02-2022, 01:43 PM

Quote:

Originally Posted by Jaronbwall

WHY? HOW? This makes no sense.

Makes me wonder if they were OEM water pumps or cheap aftermarket ones. 5 in 4/5 years is nuts.....and doesn't make sense at all.

Saif2018 · 05-02-2022, 03:44 PM

Only changed Waterpump once since I bought my car, been about 4 years now.

Changing it 5 times is insane. The OEM waterpump is nowhere near that bad, something else must be causing the problem.

Dave92N54 · 05-02-2022, 07:05 PM

Quote:

Originally Posted by Jaronbwall

Quote:

Originally Posted by SCHWARZ_E92

Ive run sport cooling the last 100k miles.. just have had bad luck. Talking about bad luck, my fathers 135i is about to get its 5th water pump within the last 4-5 years he has had it. He is only at 136k miles

WHY? HOW? This makes no sense.

My guess is the molding. Within the first 4 months of owning my car I had to do the pump 3 times, the housing cracked on the first two replacements after about a month. Current one has been on for about a year and a half no issue.

Jaronbwall · 05-04-2022, 08:56 AM

Quote:

Originally Posted by Saif2018

Only changed Waterpump once since I bought my car, been about 4 years now.

Changing it 5 times is insane. The OEM waterpump is nowhere near that bad, something else must be causing the problem.

Ditto. Changed mine about 5 years ago.
"knock on wood"

04-29-2022, 02:55 PM	#1
uberschnell Brigadier General 680 Rep 4,077 Posts Drives: Wide Body 1 Join Date: Mar 2007 Location: Bay Area iTrader: (48)	120K refresh - do I change the radiator? Doing a 120K refresh on my n54 Replacing belts, tensioner, water pump, thermostat, most of the cooling hoses, expansion tank, valve cover, installing aux radiator. Radiator has no leaks, but it's original, do I go ahead and change it out anyways?
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04-29-2022, 04:01 PM	#2
Dave92N54 Major 535 Rep 1,173 Posts Drives: 09 E92 335i 6MT Join Date: Nov 2020 Location: Westminster, Maryland iTrader: (0) Garage List 2009 BMW 335i [10.00]	I probably would. Simple enough to do and not terribly expensive. My end tank started leaking on mine at 122k. __________________ 09 E92 335i 6MT / Alpine White / Coral Red / VRSF 7.5" / VRSF DCI / VRSF Catless Downpipes / VTT Charge Pipe / Turbosmart RacePort Gen V / RB OEM Billet Turbos / CD919 Custom Tune / Bilstein PSS9s
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04-29-2022, 08:09 PM	#5
F13.KENN Lieutenant 613 Rep 484 Posts Drives: 2014 BMW M6 Gran Coupe Join Date: Mar 2018 Location: Atlanta, Georgia iTrader: (0)	If you do change it, get a csf. Im on my 3rd or 4th? stock radiator in the last 3 years. The plastic end tanks keep cracking or weeping coolant. Replaced it 6-7 months ago & last week i walked out to my car at work, started it, low coolant light came on.. looked around at it and one of the plastic end tanks are weeping coolant again : __________________ Speedtech Top Mount 6766 2009 335i VF Supercharged 2003 540i msport https://www.instagram.com/schwarz.e92/
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04-29-2022, 08:54 PM	#6
335i54n Captain 358 Rep 610 Posts Drives: e90 335i, e39 m5 Join Date: Nov 2020 Location: socal iTrader: (0)	^ you got underlying issues, sport cooling will help extend the life of plastic parts. both my BMW is still on original rads and expansion tanks
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05-02-2022, 03:44 PM	#15
Saif2018 Brigadier General 978 Rep 3,219 Posts Drives: E90 335i Join Date: Jan 2019 Location: UK iTrader: (0)	Only changed Waterpump once since I bought my car, been about 4 years now. Changing it 5 times is insane. The OEM waterpump is nowhere near that bad, something else must be causing the problem.
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