50K service - Spark Plugs needs replacement?
Thread Starter
Junior Member
Joined: Jan 2016
Posts: 34
Likes: 1
2013 GL550
50K service - Spark Plugs needs replacement?
Hello all,
I just took my 2013 GL550 in for 50k service and dealer called back suggesting Spark Plug replacement. I am a bit surprised as 50K miles seems too soon to replace spark plugs. This is my first MB, so just wanted to reach out to the community to see if this is accurate or am I being taken for a ride by the dealer.
If it is required, any price guidance will be great too. Dealer is quoting me $700 for replacing the spark plugs.
thank you in advance,
John
I just took my 2013 GL550 in for 50k service and dealer called back suggesting Spark Plug replacement. I am a bit surprised as 50K miles seems too soon to replace spark plugs. This is my first MB, so just wanted to reach out to the community to see if this is accurate or am I being taken for a ride by the dealer.
If it is required, any price guidance will be great too. Dealer is quoting me $700 for replacing the spark plugs.
thank you in advance,
John
MBWorld Fanatic!
Joined: Nov 2017
Posts: 1,218
Likes: 149
From: Bethesda, MD
2010 Mercedes GL450; 2000 Mercedes ML55 AMG; 2016 VW GLI SEL Stick!!!
50k is right.
The price...I would be more comfortable at the 400-500 mark at the dealer.
That's what I spent 2 years ago
The price...I would be more comfortable at the 400-500 mark at the dealer.
That's what I spent 2 years ago
MBWorld Fanatic!
Joined: Nov 2014
Posts: 4,242
Likes: 628
From: Chicago burbs
2015 S550
6 yrs or 60k miles is the recommended interval for changing the spark plugs on the gas GL's.
You can download your service manual here: https://www.mbusa.com/mercedes/servi...enance_manuals
You can download your service manual here: https://www.mbusa.com/mercedes/servi...enance_manuals
MBWorld Fanatic!
Joined: Nov 2017
Posts: 1,218
Likes: 149
From: Bethesda, MD
2010 Mercedes GL450; 2000 Mercedes ML55 AMG; 2016 VW GLI SEL Stick!!!
6 yrs or 60k miles is the recommended interval for
changing the spark plugs on the gas GL's.
You can download your service manual here: https://www.mbusa.com/mercedes/servi...enance_manuals
changing the spark plugs on the gas GL's.
You can download your service manual here: https://www.mbusa.com/mercedes/servi...enance_manuals
That being said....the engine in yours is no different than those in the 2015s.....
So you may be wondering what is behind Mercedes' earlier recommendation.....
Beats me too...
Thread Starter
Junior Member
Joined: Jan 2016
Posts: 34
Likes: 1
2013 GL550
Thank you all for the response. I will check the service schedule (hind sight, I should have started there). I will push on dealer to see if this is really needed or they are just "recommending".
MBWorld Fanatic!
Joined: Nov 2014
Posts: 4,242
Likes: 628
From: Chicago burbs
2015 S550
If your rig is running smoothly and you haven't noticed a drop off in gas mileage, then you don't need the plugs yet.
Senior Member
Joined: Feb 2016
Posts: 298
Likes: 32
From: America's Mitten
on GLC300 #2, a 2022 CPO purchased b/c I really dislike the X254's UI (GL350 before those)
Mercedes dealers have such *****, $700 for a set of spark plugs, price it like it's brain surgery and the plugs are of solid unobtanium. Thank goodness the change interval is much, much, much, much longer on my gl350.
Trending Topics
MBWorld Fanatic!
Joined: Nov 2014
Posts: 4,242
Likes: 628
From: Chicago burbs
2015 S550
The cost of plugs are probably the least of your worries with a MB Bluetec diesel motor. That motor is a friggin oil sludge and soot clogging nightmare if you follow the mfr service recommendations and use the MB recommended oil.
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
Senior Member
Joined: Feb 2016
Posts: 298
Likes: 32
From: America's Mitten
on GLC300 #2, a 2022 CPO purchased b/c I really dislike the X254's UI (GL350 before those)
my comment was not one of smug superiority, rather it was aimed at the dealers and not the gasoline engine itself.
MBWorld Fanatic!
Joined: Nov 2014
Posts: 4,242
Likes: 628
From: Chicago burbs
2015 S550
For your information and that of others with Bluetec diesel motors, you should take the time to fully read this article. If you follow this mechanic's recommendations to the letter, you may be able to stem the damage that your motor is doing to itself without your knowledge. If you already have a high mileage Bluetec motor and have been following the MB recommended service schedule, you may be beyond the point of being able to save your motor for the long term.
http://www.stephensservice.com/bluet...ssuesproblems/
MBWorld Fanatic!
Joined: Nov 2017
Posts: 1,218
Likes: 149
From: Bethesda, MD
2010 Mercedes GL450; 2000 Mercedes ML55 AMG; 2016 VW GLI SEL Stick!!!
Got it.
For your information and that of others with Bluetec diesel motors, you should take the time to fully read this article. If you follow this mechanic's recommendations to the letter, you may be able to stem the damage that your motor is doing to itself without your knowledge. If you already have a high mileage Bluetec motor and have been following the MB recommended service schedule, you may be beyond the point of being able to save your motor for the long term.
http://www.stephensservice.com/bluet...ssuesproblems/
For your information and that of others with Bluetec diesel motors, you should take the time to fully read this article. If you follow this mechanic's recommendations to the letter, you may be able to stem the damage that your motor is doing to itself without your knowledge. If you already have a high mileage Bluetec motor and have been following the MB recommended service schedule, you may be beyond the point of being able to save your motor for the long term.
http://www.stephensservice.com/bluet...ssuesproblems/
It's a shame the bluetec engines are handicapped in the US when compared to the worldwide market.
They are known and praised for their longevity everywhere else.
Dave is right. And even if you do stick to manufacturer recommended service intervals it might be best to stick a bottle of liqui molly engine flush into the oil before you change it.
It does work.
Liqui Moly 2037 Pro-Line Engine Flush - 500 Milliliters https://www.amazon.com/dp/B00CR3RXTO/ref=cm_sw_r_cp_api_vozOAb2W5G526
Member
Joined: Mar 2006
Posts: 186
Likes: 9
My 2012 E350 Coupe spark plugs change was at 60,000 per maintenance guide (V6 engine) cost $750. We also own a 2016 GLC, thanks for alerting us. I have always thought that new cars don’t need spark plugs replacement till 100,000 miles. Obviously I was wrong.
Senior Member
Joined: Aug 2014
Posts: 299
Likes: 20
From: HHI, SC
2002 C4 Cab, 2014 Audi A5 cab, 2017 X5 35d
The next time one of us gets a straight answer (from MB dealer) to 'recommended' vs 'required' will be the first time
Senior Member
Joined: Apr 2016
Posts: 266
Likes: 20
From: Australia
GLC 250D
For your information and that of others with Bluetec diesel motors, you should take the time to fully read this article. If you follow this mechanic's recommendations to the letter, you may be able to stem the damage that your motor is doing to itself without your knowledge.
http://www.stephensservice.com/bluet...ssuesproblems/
http://www.stephensservice.com/bluet...ssuesproblems/
In what way are they handicapped in the US and not elsewhere? ( I'm not in the US)
Newbie
Joined: Jan 2019
Posts: 7
Likes: 0
e360
U can try to fix your old plugs. I can not give 100% guarantee that they will earn again, but thanks to this article selfgrowth.com/articles/how-to-fix-a-car-s-spark-plug I had a couple of weeks ago to resuscitate a couple of his. Perhaps it will work for you.
Last edited by John Gaarg; Jun 27, 2019 at 05:32 PM.
MBWorld Fanatic!
Joined: Nov 2014
Posts: 4,242
Likes: 628
From: Chicago burbs
2015 S550
U can try to fix your old plugs. I can not give 100% guarantee that they will earn again, but thanks to this article selfgrowth.com/articles/how-to-fix-a-car-s-spark-plug I had a couple of weeks ago to resuscitate a couple of his. Perhaps it will work for you.
MBWorld Fanatic!
Joined: Nov 2012
Posts: 6,130
Likes: 1,117
A gaggle of MB's
Well back to reality - with 50K miles on a 2013 GL - before checkin I would suggest you consider 2yrs/20K miles Mercedes prepaid Service for $1,255 - which covers ALL recommended items for 50/60 incl plug change... for dealer service that's the best deal... 3yrs/30K is $1,750
Member
Joined: Feb 2018
Posts: 154
Likes: 18
From: South Florida
GL550
$700 is very high to just to replace the plugs and does not include anything else. My Indi charged me $600ish (I don't recall the exact amount but was under $700). This included the A3 service, plug change, cabin and engine filter change. I had asked him to change the plugs a little early from the scheduled 60k.
Senior Member
Joined: Mar 2009
Posts: 401
Likes: 31
From: CT
GL 450, 993TT, Cayenne Diesel, 964C4
I started on my plugs today. Was able to finish the passenger bank in two hours. The last bolt closest to the passenger firewall is a *****. No combinations of wobble and socket will work so I had to go to Autozone and pick up a flexible extension which burned up time to do the driver side. Driver side will be a breeze with a lot more room.
The spark plug extension tool from Mercedes is worth the investment. I will be all in $160 for parts and tools with 3-4 hours of time.
The spark plug extension tool from Mercedes is worth the investment. I will be all in $160 for parts and tools with 3-4 hours of time.
Senior Member
Joined: Mar 2009
Posts: 401
Likes: 31
From: CT
GL 450, 993TT, Cayenne Diesel, 964C4
Originally Posted by chassis
Great job. Do you have a link for the Mercedes spark plug extension?
https://www.genuinemercedesparts.com...h-278589000900
