2015 C300 spark plugs
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Newbie
Joined: Nov 2017
Posts: 13
Likes: 11
2015 C 300
2015 C300 spark plugs
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..
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..
MBWorld Fanatic!
Joined: Aug 2017
Posts: 1,694
Likes: 521
2019 S560, 2015 Honda Civic Hybrid
I believe normal plug life on newer cars is in the 100k mile range. This is partly because federal emissions warranties go pretty far out in mileage terms, so the mfgs have all moved to a plug life that ensures they won't have to pay for new parts to keep the vehicle in compliance during the emissions warranty period. I know my wife's Honda recommends plugs at 100k.
You might take a look at the discussion of emissions warranty for your car and ask the dealer to reimburse the plugs as a warranty item. If they truly needed to be replaced, you would think the vehicle emissions were affected.
You might take a look at the discussion of emissions warranty for your car and ask the dealer to reimburse the plugs as a warranty item. If they truly needed to be replaced, you would think the vehicle emissions were affected.
MBWorld Fanatic!
Joined: Aug 2013
Posts: 1,364
Likes: 149
2012 C300 4MATIC Sport
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..
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..
You might get better answers in the W205 section by the way.
Super Member
Joined: Jun 2017
Posts: 608
Likes: 107
From: Western NC
2009 MB C300 Sport 4matic
https://www.pelicanparts.com/catalog...BASTUN_pg1.htm
Definitely a DIY job if you want to do it... A Search will bring up the procedure somewhere on the Web. The M276 engine says 60K miles for the plugs but I think that's because it's a Direct Injection engine..probably to soon. My M272 has the 60K interval and the iridium plugs look great at that mileage. Fairly inexpensive to change though but would invest in your own plugs/thin wallws socket. Torque is 16 NM-23 NM with the higher end preferred. A Torx (T30?) bit needed for the COP bolts.
Definitely a DIY job if you want to do it... A Search will bring up the procedure somewhere on the Web. The M276 engine says 60K miles for the plugs but I think that's because it's a Direct Injection engine..probably to soon. My M272 has the 60K interval and the iridium plugs look great at that mileage. Fairly inexpensive to change though but would invest in your own plugs/thin wallws socket. Torque is 16 NM-23 NM with the higher end preferred. A Torx (T30?) bit needed for the COP bolts.
Member
Joined: Jul 2008
Posts: 168
Likes: 71
...
For reference, here are the maintenance intervals for a 2015 C300 sedan. In addition to spark plugs, the engine air filter is also due at 50k or 5yrs.
Service "A" (10,000 miles or 1 year)
- Engine oil and oil filter change
- Replace dust filter
Service "B" (20,000 miles or 2 years)
- Engine oil and oil filter change
- Replace dust filter
- Replace activated charcoal cabin filter
- Rotate tires (if applicable)
- Flush brake fluid
50,000 miles or 5 years
- Replace engine air-filter
- Replace spark plugs
60,000 miles or 6 years
- Automatic transmission oil and oil filter change
120,000 miles or 12 years
- Replace fuel filter
- Replace coolant
Service "A" (10,000 miles or 1 year)
- Engine oil and oil filter change
- Replace dust filter
Service "B" (20,000 miles or 2 years)
- Engine oil and oil filter change
- Replace dust filter
- Replace activated charcoal cabin filter
- Rotate tires (if applicable)
- Flush brake fluid
50,000 miles or 5 years
- Replace engine air-filter
- Replace spark plugs
60,000 miles or 6 years
- Automatic transmission oil and oil filter change
120,000 miles or 12 years
- Replace fuel filter
- Replace coolant
Last edited by MB_FanAddict; Nov 10, 2018 at 01:55 PM.
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MBWorld Fanatic!
Joined: May 2015
Posts: 4,037
Likes: 1,011
From: Miami, FL
2003 CL 600
For reference, here are the maintenance intervals for a 2015 C300 sedan. In addition to spark plugs, the engine air filter is also due at 50k or 5yrs.
Service "A" (10,000 miles or 1 year)
- Engine oil and oil filter change
- Replace cabin filter
Service "B" (20,000 miles or 2 years)
- Engine oil and oil filter change
- Replace cabin filter
- Rotate tires (if applicable)
- Flush brake fluid
50,000 miles or 5 years
- Replace engine air-filter
- Replace spark plugs
60,000 miles or 6 years
- Automatic transmission oil and oil filter change
120,000 miles or 12 years
- Replace fuel filter
- Replace coolant
Service "A" (10,000 miles or 1 year)
- Engine oil and oil filter change
- Replace cabin filter
Service "B" (20,000 miles or 2 years)
- Engine oil and oil filter change
- Replace cabin filter
- Rotate tires (if applicable)
- Flush brake fluid
50,000 miles or 5 years
- Replace engine air-filter
- Replace spark plugs
60,000 miles or 6 years
- Automatic transmission oil and oil filter change
120,000 miles or 12 years
- Replace fuel filter
- Replace coolant
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