Spark plugs on a 428

Astone22 · 03-02-2019, 01:49 PM

Just went in for service and per the key read it states my spark plugs are due in 7400 miles which will be around 40k. Is this correct? I thought they were rated for 60k miles?

5mall5nail5 · 03-02-2019, 02:07 PM

Don't know official replacement schedule but personally I don't like sparkplugs in a car past 40 - 50k

WallySlash · 03-02-2019, 04:07 PM

I see change intervals online from 50-60K. Personally, I am going to perform at 50K.

Astone22 · 03-02-2019, 04:11 PM

Thanks for the input I will wait till 50k

Rebound · 03-02-2019, 05:56 PM

Quote:

Originally Posted by 5mall5nail5

Don't know official replacement schedule but personally I don't like sparkplugs in a car past 40 - 50k

Spark plugs in newer cars are tipped with Iridium, which makes them exceptionally long-lasting. In BMW's N55 engine, the replacement interval is 60,000 miles and in my Prius, the interval is 120,000 miles!

5mall5nail5 · 03-02-2019, 05:57 PM

Quote:

Originally Posted by Rebound

Quote:

Originally Posted by 5mall5nail5

Don't know official replacement schedule but personally I don't like sparkplugs in a car past 40 - 50k

Spark plugs in newer cars are tipped with Iridium, which makes them exceptionally long-lasting. In BMW's N55 engine, the replacement interval is 60,000 miles and in my Prius, the interval is 120,000 miles!

Totally understand but still not my preference because they heat cycle so long they can get stuck and or even break in the combustion chamber. cheap insurance to replace every 25k.

328iX · 03-02-2019, 06:40 PM

Quote:

Originally Posted by 5mall5nail5

cheap insurance to replace every 25k.

adhrp · 03-02-2019, 06:46 PM

I changed mine at 60k, no issues and they looked great. Could have kept them in longer.

sspade · 03-02-2019, 08:51 PM

I replaced mine at 50k.

Simple DIY, wouldn't pay anyone to do it.

Astone22 · 03-02-2019, 08:53 PM

Quote:

Originally Posted by sspade

I replaced mine at 50k.

Simple DIY, wouldn't pay anyone to do it.

How involved is it? Does anything need to be removed ?

Wires · 03-03-2019, 02:48 PM

Quote:

Originally Posted by 5mall5nail5

Totally understand but still not my preference because they heat cycle so long they can get stuck and or even break in the combustion chamber. cheap insurance to replace every 25k.

What he said. They won't come out after extremely high miles, which is fine if you're flipping the car and not keeping it.

Plugs are cheap compared to getting heads re-tapped.

jaysal555 · 03-03-2019, 03:35 PM

On fcpeuro would you save the money and go for the Delphi tune-up kit with coils or pay for the genuine BMW? $150 difference...

rjd_F30 · 03-03-2019, 04:53 PM

Quote:

Originally Posted by Astone22

How involved is it? Does anything need to be removed ?

Not difficult at all. 30 minute job. You just need a special BMW spark plug socket that I got on FCP euro for like $5. I remove the rear most plastic that covers the engine, but that's not necessary per se, just makes it easier. I highly recommend you try it yourself.

SteveInfante · 03-04-2019, 01:05 PM

Make sure you check the gap. Don't trust the "factory" once they leave the factory how many times have they been shaken around? Even with the little sleeves on them they are sometimes still out of spec.

03-02-2019, 01:49 PM	#1
Astone22 First Lieutenant 78 Rep 388 Posts Drives: F30 320 xdrive, f32 428 Join Date: Mar 2017 Location: Stl iTrader: (1)	Spark plugs on a 428 Just went in for service and per the key read it states my spark plugs are due in 7400 miles which will be around 40k. Is this correct? I thought they were rated for 60k miles?
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03-02-2019, 02:07 PM	#2
5mall5nail5 Not stock 474 Rep 617 Posts Drives: E34 525i Turbo Join Date: Oct 2008 Location: PA iTrader: (0)	Don't know official replacement schedule but personally I don't like sparkplugs in a car past 40 - 50k __________________ 2015 BSM 328i Sport Line - BSM 2015 BSM X1 M Sport - BSM 1992 525i 1987 325e
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03-02-2019, 04:07 PM	#3
WallySlash Private First Class 96 Rep 153 Posts Drives: 2014 428xi Sport Line Join Date: Jul 2017 Location: Keller, TX iTrader: (0) Garage List 2014 BMW 428xi [9.00]	I see change intervals online from 50-60K. Personally, I am going to perform at 50K.
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03-02-2019, 04:11 PM	#4
Astone22 First Lieutenant 78 Rep 388 Posts Drives: F30 320 xdrive, f32 428 Join Date: Mar 2017 Location: Stl iTrader: (1)	Thanks for the input I will wait till 50k
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03-02-2019, 06:46 PM	#8
adhrp Lieutenant Colonel 1290 Rep 1,609 Posts Drives: 2020 M550i (G30)/2021 X3 (G02) Join Date: Jun 2014 Location: FL iTrader: (0)	I changed mine at 60k, no issues and they looked great. Could have kept them in longer. __________________ 2020 M550i (G30) \| Carbon Black/Black Nappa \| DHP \| DAP \| Executive \| Luxury Seating \| Park Asst \| Ceramic Controls \| Front/Rear Heated Seats \| 20" 668M wheels 2021 X3 (G02) \| Dark Graphite Metallic/Cognac \| Premium \| DAP \| Front/Rear Heated Seats Sold/Retired: 2012 328i (F30)
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03-02-2019, 08:51 PM	#9
sspade Major General 2465 Rep 5,457 Posts Drives: F30 Join Date: Oct 2017 Location: Stevenson, WA iTrader: (3) Garage List 2016 BMW 320i [7.87] 2014 BMW 328i [6.83]	I replaced mine at 50k. Simple DIY, wouldn't pay anyone to do it.
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03-03-2019, 03:35 PM	#12
jaysal555 Private 27 Rep 62 Posts Drives: 2015 428i SULEV Join Date: Apr 2018 Location: Orlando iTrader: (0)	On fcpeuro would you save the money and go for the Delphi tune-up kit with coils or pay for the genuine BMW? $150 difference...
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03-04-2019, 01:05 PM	#14
SteveInfante NewFinishColumbia/detailer 604 Rep 2,096 Posts Drives: 2015 F31 xDrive Join Date: Sep 2010 Location: Columbia, SC iTrader: (0)	Make sure you check the gap. Don't trust the "factory" once they leave the factory how many times have they been shaken around? Even with the little sleeves on them they are sometimes still out of spec. __________________ 328 F31 xDrive/OSM/Venetian Luxury Line/Cold Weather/Premium/Driving Assist/Nav/Tech "Golden Goose" 78' Honda CB400A project http://www.instagram.com/steve_inf31
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