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2015 C 300 Spark Plugs at 50K miles?

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2015 C 300 Spark Plugs at 50K miles?

Old 11-08-2018, 12:54 AM
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2015 C 300 Spark Plugs at 50K miles?

Just had the 50K service A done on my 2015 C300.
Dealer recommended changing spark plugs for $550. When I pushed for details, the breakdown was $100 for 4 spark plugs ( Q-4-15-0038) and 2.5 hrs of labor.

Has anyone else replaced the plugs at 50K miles and what was the cost? I thought spark plugs had a much longer life than 50K miles..
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Old 11-08-2018, 04:48 AM
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I haven't done it, my car is only at 7K miles, but at that price you need to find an indy to do these jobs. It'll be far cheaper.
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Old 11-08-2018, 04:13 PM
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There's no way it take 2.5 hrs to do spark plugs on a inline 4. Take it to a indie or have a friend do it.
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Old 11-08-2018, 07:31 PM
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that's about right. I paid 840$ for 50k service with spark plugs replaced at dealer.
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Old 11-09-2018, 09:59 AM
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I purchased OEM spark plugs online, bought the torque wrench and other tools, and it took me about 30-40 mins to do on my own. Altogether, it was prob $150 I spent. Iím not tech savvy and definitely not handy when it comes to Dyi for cars, and have never changed a spark plug omg any car, and I was easily able to do it. Research / watch videos / review the WIS to see if youíre comfortsble doing it on your own
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Old 11-09-2018, 02:22 PM
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Originally Posted by Elbandito View Post
I purchased OEM spark plugs online, bought the torque wrench and other tools, and it took me about 30-40 mins to do on my own. Altogether, it was prob $150 I spent. Iím not tech savvy and definitely not handy when it comes to Dyi for cars, and have never changed a spark plug omg any car, and I was easily able to do it. Research / watch videos / review the WIS to see if youíre comfortsble doing it on your own
Completely agree. Changing spark plugs on an inline 4 is as straight forward as it gets. V6s on the other hand can be tricky and it's worth it sometimes to pay a shop to do it. The torque spec for the C300 is 23nm for those wondering.
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Old 11-14-2018, 09:55 PM
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Did the plugs look like they needed to be changed at 50,000 miles?
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