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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E60 / E61 (2004 - 2010)

E60 / E61 (2004 - 2010)
BMW 5-Series E60 Sedan was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E61 wagon followed shortly there after. The E60/E61 5 series is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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  #1  
Old 05-16-2015, 04:53 PM
ETNSandman ETNSandman is offline
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Location: Maryville
 
Join Date: Mar 2015
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Mein Auto: 2004 545i
545i 130k spark plug change today

After watching a few videos this was actually a pretty easy job. The back spark plugs on dad's Buick Century are actually way more difficult. They seem pretty dirty to me and we're ready to go.

I used some spray electrical contact cleaner on every connector I had to undo. Took my time and she's running great. My average day to day mileage was 18mpg, but in the 82 miles since the change its averaging 20. Nice.

I also had to remove the throttle body to replace a coolant return hose so it received a good cleaning as well. It was somewhat dirty but is shiny now.

What do you guys think about these plugs?Click image for larger version

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  #2  
Old 05-17-2015, 08:06 AM
ETNSandman ETNSandman is offline
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Location: Maryville
 
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Mein Auto: 2004 545i
Was hoping for a little input.... Do you guys think those are the factory plugs. They look a little worn and dirty to me. But I don't know if they look 130k miles old.
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  #3  
Old 05-17-2015, 09:53 AM
H F H F is offline
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Location: Claremont California
 
Join Date: Mar 2010
Posts: 2,679
Mein Auto: 2005 545i
Looks like they are , originals and been on the car for a while ... NGK is original equipment . I put in a fresh set at 90,000 .
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Last edited by H F; 05-17-2015 at 09:54 AM.
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  #4  
Old 05-17-2015, 10:54 AM
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07 E63650i 07 E63650i is offline
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Mein Auto: 2007 BMW E63 650i
I wouldn't wait until 100K for spark plugs. I choose to do mine every 60K miles.
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  #5  
Old 05-17-2015, 04:10 PM
ETNSandman ETNSandman is offline
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Location: Maryville
 
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After seeing how much better the car behaves and the gas mileage increase I'm with you. It wasn't even that hard. I did reset engine adaptations with INPA just for good measure since I also cleaned the throttle body.
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  #6  
Old 05-29-2015, 11:43 PM
ewbourne ewbourne is offline
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Location: Western KY
 
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Mein Auto: 535i sport
Is there a need to replace coils when changing plugs.

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  #7  
Old 05-30-2015, 04:57 AM
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dwlink dwlink is offline
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Quote:
Originally Posted by ewbourne View Post
Is there a need to replace coils when changing plugs.

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Nope
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Old 05-30-2015, 06:24 AM
ewbourne ewbourne is offline
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Location: Western KY
 
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Thanks for the info

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  #9  
Old 05-30-2015, 06:46 AM
ETNSandman ETNSandman is offline
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I just wiped my coils down and inspected them for cracks. Then I used a spray electrical contact cleaner on the connector and the area where the spark plug actually contacts the coil.
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