Crazy Spark Plug Replace price
#26
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12' E559
socket extensions and swivels are key in doing plugs on the 4.7. did a S63 monh or so ago, given you have the tools its easy...just time consuming. doing mine soon. hoping the 4.7 has a bit more room than the 5.5tt.
#27
Mercedes 2013 GLK SPARK PLUGS
So my dealership said that my 2016 E350 with 50k is due for spark plugs and I was thinking ... ok cool no big deal right? They said it would be like $750!! WOW is this correct? I told them not to proceed.. Also concerned this may affect my warranty if I don’t submit to their crazy price. Anyone have a similar situation?
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#29
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2008 E350 (W211 @170K), 2012 ML350 (W166 @119K), 2014 E350 (W212 @100K), 2015 ML350 (W166 @96K)
MB dealer quoted $700 (Sep 2020) for the spark plug maintenance and that was it. Said thank you, but I can do that type of work (though I had not done spark plugs for @10 years)
Researched the videos, and found the one in post $4, bought
- 16mm socket with a swivel extension. My mistake, I got the 12" extension, instead of getting a shorter one (see spark plug driver's side next to firewall = PITA)
- Spark plug boot removal plier. There is a workaround with a string that I could fancy one day.
The most important advice includes:
- get familiar with how the locks on the coil's connector work, so it will be a breeze to disconnect the coils and not figuring it out as you go along.
- be certain the socket is magnetic and with a permanently attached swivel extension; otherwise, if it gets stuck in and you cannot see it and you will sweat it out. Do not ask me how I know.
With a stuck socket on the plug near the firewall, a nasty connector that refused to give out, and a trip to the store for another socket it took me about 2+ hours to do. If you do the most difficult one first, the next 5 are a breeze.
With tools, plugs, and the refreshment, I still kept $500+ in my pocket. That is a transmission service (something I would not even attempt to do), or else.
Researched the videos, and found the one in post $4, bought
- 16mm socket with a swivel extension. My mistake, I got the 12" extension, instead of getting a shorter one (see spark plug driver's side next to firewall = PITA)
- Spark plug boot removal plier. There is a workaround with a string that I could fancy one day.
The most important advice includes:
- get familiar with how the locks on the coil's connector work, so it will be a breeze to disconnect the coils and not figuring it out as you go along.
- be certain the socket is magnetic and with a permanently attached swivel extension; otherwise, if it gets stuck in and you cannot see it and you will sweat it out. Do not ask me how I know.
With a stuck socket on the plug near the firewall, a nasty connector that refused to give out, and a trip to the store for another socket it took me about 2+ hours to do. If you do the most difficult one first, the next 5 are a breeze.
With tools, plugs, and the refreshment, I still kept $500+ in my pocket. That is a transmission service (something I would not even attempt to do), or else.
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#30
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2017 GLE350 4MATIC
I found the driver's side (left side) spark plugs the most difficult because of the ECU bracket and vacuum lines in the area. I think this is why WIS says to remove the intake manifold (and replace intake manifold seals) to replace the spark plugs. Removing the intake manifold makes easier access from above, avoiding the ECU bracket and vaccuum lines.
I will replace spark plugs next year at 100k miles, and I will allow extra time for either full removal of the ECU bracket and possibly removal of a vacuum line, or go the WIS route and remove the intake manifold.
I will replace spark plugs next year at 100k miles, and I will allow extra time for either full removal of the ECU bracket and possibly removal of a vacuum line, or go the WIS route and remove the intake manifold.
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#32
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2008 E350 (W211 @170K), 2012 ML350 (W166 @119K), 2014 E350 (W212 @100K), 2015 ML350 (W166 @96K)
Removing the intake manifold makes easier access from above, avoiding the ECU bracket and vacuum lines.
I will replace spark plugs next year at 100k miles, and I will allow extra time for either full removal of the ECU bracket and possibly removal of a vacuum line, or go the WIS route and remove the intake manifold.
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2017 GLE350 4MATIC
Agree; however, touching the intake manifold is in my opinion looking for other problems. Your experience dealing with sealing, vacuum, and leaks is very important then.
Easy access perhaps, introducing another failure point in the way back is true as well. Though I agree that incorrect handling of the ECU connector and its harness could also bring problems.
I recall removing the ECU altogether as shown in the video (post #4), but I do not recall removing any vacuum line. Well, I will find out at @100K miles then.
Easy access perhaps, introducing another failure point in the way back is true as well. Though I agree that incorrect handling of the ECU connector and its harness could also bring problems.
I recall removing the ECU altogether as shown in the video (post #4), but I do not recall removing any vacuum line. Well, I will find out at @100K miles then.
You will encounter a vacuum line if you do this job.
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#34
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2008 E350 (W211 @170K), 2012 ML350 (W166 @119K), 2014 E350 (W212 @100K), 2015 ML350 (W166 @96K)
@juanmor40 Removing the ECU is easy. Removing the metal ECU bracket is a challenge because the small screws to the engine block are behind other components. Also in an SUV, the fender needs to be reached over. It’s a challenge.
You will encounter a vacuum line if you do this job.
You will encounter a vacuum line if you do this job.
Is this the vacuum hose you are referring to? I did it like the video, but I never had to remove the hose
Last edited by juanmor40; 09-02-2021 at 04:01 PM.
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#36
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2017 GLE350 4MATIC
Let me look at it over the weekend. I recall my major regret on the W212 Sedan was the one next to the driver's side firewall. I was ready to give up and the socket got stuck, %^&*(, regrouped after considering failure and managed it out. After that, it was a breeze to finish the other ones. I will never use a socket with a rubber into either the M272 or M276 engine (only ones I have done), magnetic all the way. I will have to try on my sister's W166 (also an M276 if I recall correctly) and see if the fender height makes it even worse (time of a step to work on?)
https://youtu.be/HpD3Aq1rYIo?t=329
Is this the vacuum hose you are referring to? I did it like the video, but I never had to remove the hose
https://youtu.be/HpD3Aq1rYIo?t=329
Is this the vacuum hose you are referring to? I did it like the video, but I never had to remove the hose
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#37
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2008 E350 (W211 @170K), 2012 ML350 (W166 @119K), 2014 E350 (W212 @100K), 2015 ML350 (W166 @96K)
Notice the W166 requires more paneling to be removed, and I needed steps tool to reach more comfortably.
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2017 GLE350 4MATIC
supposedly the W166 is more challenging, except for the oil dipstick and harness around it, I would say it is the same level of difficulty than the W212 RWD. I did sister's a few weeks ago
Notice the W166 requires more paneling to be removed, and I needed steps tool to reach more comfortably.
Notice the W166 requires more paneling to be removed, and I needed steps tool to reach more comfortably.