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Old 12-15-2018, 12:58 AM
Join Date: Jul 2016
Location: Menlo Park, CA
Posts: 923
Fifty150hs is on a distinguished road
Originally Posted by Overboost View Post
Just a set of jumper cables in the back of mine... For other stranded motorists...
I've been known to carry a jump box on occasion, but still, no spare parts.
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Old 12-15-2018, 11:39 AM
Join Date: Jun 2014
Location: Omaha, NE
Posts: 1,158
cn90 is on a distinguished road
I carry jump cables, 2 used coils (from junk yard), old coolant reservoir (still good), 1 gallon of premixed coolant, 1-2 qts of engine oil.

On very long trips, I carry the brand-new Bosch alternator and a brand-new Pierburg fuel pump.

Of course, carry some basic tools for the above items.

Preventive maintenance is the KEY!
1998 E39 528i 5sp MT
2006 E53 X5 3.0 6sp MT
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Old 12-15-2018, 12:22 PM
semcoinc's Avatar
Join Date: Dec 2014
Location: Dallas, TX
Posts: 771
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Originally Posted by jsoto View Post
"All this talk about junk in the trunk carrying a spare fuel pump in the back pocket " has left me pondering

My 2019 resolutions is to not put any more PM parts but I swear, my ju-ju is telling me I should at least keep a coil pack on hand. At 145K and I'm on original except for maybe 2.

What camp do you fall in for coils. I've treated these as fail or no fail.
I do some very long road trips and reliability is paramount for me.

So I fall into the camp of: "How much more service does this part owe me?" when it comes to things that can shut an engine down and leave me coasting to the right shoulder of the road.

Coils, coolant hoses, water pumps, belts, spark plugs and fuel pumps certainly fall into that category for me.

I had a big trip coming up for my 130K E46 and put six new Bosch coils in it from FCP Euro. The fuel pump and relay are recent and all other critical items (belts, hoses, cam sensors) are low mileage.

I have 113K on my E53. The new fuel pump is in the garage awaiting install and I'm thinking strongly about installing new ignition coils sometime in the near future.

I carry a jump box, jumper cables (for others stranded) with compressor and a tire plug patching kit and a reasonable array of sockets and wrenches.

I keep my vehicles for the long term so I don't leave high mileage critical engine running items in service beyond my comfort zone.

To each their own choices.


Dallas, TX & Appleton, WI
2003 E53 4.4i Pearl Beige
2003 E46 330Xi Monaco Blue
2007 E90 335Xi Black Sapphire Metallic
2011 F25 X3 28i Black Sapphire Metallic
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Old 12-15-2018, 02:37 PM
Join Date: Jun 2014
Location: Omaha, NE
Posts: 1,158
cn90 is on a distinguished road
It depends on a few other factors:

1. Water Pump is a not a fun job in the middle of nowhere, especially winter time. The life of WP is about 100K-120K, ditto for thermostat.
So every 100K-110K, I replace the WP (Hepu brand) and thermostat (Wahler only), no matter what. Then I thrown the old parts in the trunk just in case I am stuck in the middle of nowhere, and God forbid the new parts fail, I can re-install the old parts just to get home.

2. Alternator: around town not an issue. It fails anywhere between 80K (VR failure) or 200K (worn out slip rings, brushes, VR etc.).
On long trips, bring the new alternator in the trunk.
Around town, the alternator sits on the garage shelf.

3. Coils. No need to replace them b/c they usually give you CEL error codes and replacing them is a piece of cake, even in the middle of nowhere.
Just keep the old coils in the trunk.
Better yet, test them (mark them with white paint before you install them) and drive around to be sure the used coils you get from junk yard or ebay are good to go when you need to use them. Then remove them a week later and throw them in the trunk.

4. Spark plugs: I replace them every 80K-100K, but throw the old plugs in the trunk.

5. MAF: no need to worry, worst case scenario, just unplug the connector to limp to a garage, then order the VDO Siemens stuff.

Just common sense.

The idea is how to "bit them before they bite you in the butt"...
1998 E39 528i 5sp MT
2006 E53 X5 3.0 6sp MT
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Old 01-06-2019, 06:35 PM
Join Date: Feb 2013
Location: nyc
Posts: 1,783
jsoto is on a distinguished road
I j1nxed myself. Getting a misfire here and there.

While I'm in there, platinum or ix iridium..
Seems like a hot debate. Some stay stick with platinum

Nvrmind. Ordered the IX plug
Plugs should still be fresh. Maybe has like like 32K miles on them. Did them a around 39 months ago

Last edited by jsoto; 01-06-2019 at 07:23 PM.
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Old 01-07-2019, 10:47 AM
upallnight's Avatar
Join Date: Aug 2012
Location: Cook County
Posts: 6,318
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I can get cheap parts at the local pick n pull, $10 for alternator or starter plus a core charge and $20.00 for a fuel pump plus core charge. I can bring the alternator to my local Pep Girl or the Manualzone and they can test it for me for FREE. I keep spare parts at home in case I need them, but if I sell the car before needing the parts, I just flip them on eBay for a profit.
2006 Infiniti G35
2001 BMW 3.0I E53 X5 Build date 08/2000
Lotus Europa 1970 Destroyed by fire
Lotus Europa 1970 S2 Renault Powered
Lotus Type 52 1970 Twincam Webers Powered
PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
BMW 525IT Sold
Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
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Triumph Spitfire 1971 Sold
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Old 01-07-2019, 11:21 AM
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Premier Member
Join Date: Aug 2017
Location: Alabama
Posts: 2,390
Crowz is on a distinguished road
I just bought 3 x5's. Ones bound to run
Just BMW's - All cars and trucks was two pages long
1994 318is
1997 528i
2000 323i
2001 X5 3.0 auto
2005 X5 3.0 auto
2013 X5 xdrive35 Turbo
More are at my website

Aftermarket E53 Radio Install
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Old 01-10-2019, 07:34 PM
Join Date: Feb 2013
Location: nyc
Posts: 1,783
jsoto is on a distinguished road
Got a big old box of new coils and plugs here. Call me cheap.
I might send it back for a refund.

I think the funky misfires was bad gas from my usual spot. Going to have to drive it often enough to get a baseline

I do er-sorta-wanna- just PM the coils just because of mileage creep. I'm just not in the mood to ~invest benjis~ at it at this time though
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