GL Class (X166) 2013-2015 after facelift became GLS (X166)

Stuck ! GL350 or 450 ?

Old Feb 19, 2019 | 10:28 AM
  #1  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
Stuck ! GL350 or 450 ?

I am sure this has been covered guys but time is of the essence as I need a replacement SUV asap. Drove a 2011 GL350 last night and really liked the truck but of coarse there is so much badness on the internet about this engine I am having trouble choosing. Can I get some clarity please ? I am a very competent mechanic have done it all before. This dosen't mean I want to spend all of my time under my new truck though.
Reply
Old Feb 19, 2019 | 12:18 PM
  #2  
kombifan's Avatar
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!!!
Originally Posted by wrightbenz
I am sure this has been covered guys but time is of the essence as I need a replacement SUV asap. Drove a 2011 GL350 last night and really liked the truck but of coarse there is so much badness on the internet about this engine I am having trouble choosing. Can I get some clarity please ? I am a very competent mechanic have done it all before. This dosen't mean I want to spend all of my time under my new truck though.
go for 450. 550 if you find one that you like.
Reply
Old Feb 19, 2019 | 01:37 PM
  #3  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
That seems to be the easy answer
Reply
Old Feb 19, 2019 | 01:50 PM
  #4  
kombifan's Avatar
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!!!
Originally Posted by wrightbenz
That seems to be the easy answer
i have a 450. If you look at my posts and service receipts , you’ll have plenty of opportunities to be under the car 😋

also so this is the x166 forum. You’ll have more specific advice in the x164 forum 07-12 gl
Reply
Old Feb 19, 2019 | 02:02 PM
  #5  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
So you have had lots of issues with the 450 ?
Reply
Old Feb 19, 2019 | 02:12 PM
  #6  
kombifan's Avatar
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!!!
I’ve had normal issues that are common to all gl models.

The 350 will have exponentially more issues than a 450 or 550.

Just normalstuff, some annoying stuff
brake wear harness. Handles. Intake manifold. Struts and airbags. Multiple idler pulleys. Tensioner. Belts. Sway bar end links, blower, PCv valve Etc.

thats all I can remember right now.

Last edited by kombifan; Feb 19, 2019 at 02:17 PM.
Reply
Old Feb 19, 2019 | 10:43 PM
  #7  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
Originally Posted by kombifan
I’ve had normal issues that are common to all gl models.

The 350 will have exponentially more issues than a 450 or 550.

Just normalstuff, some annoying stuff
brake wear harness. Handles. Intake manifold. Struts and airbags. Multiple idler pulleys. Tensioner. Belts. Sway bar end links, blower, PCv valve Etc.

thats all I can remember right now.
I take it your saying the GL series isn’t great no matter which power train I choose ? Maybe go another direction completely.
Reply
Old Feb 19, 2019 | 10:56 PM
  #8  
kombifan's Avatar
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!!!
Originally Posted by wrightbenz


I take it your saying the GL series isn’t great no matter which power train I choose ? Maybe go another direction completely.
quite the opposite.

it's an amazing platform that can tackle anything you throw at it. It has never left me stranded. Never not started.
Its comfortable. Safe. Planted and is as happy at 130 as well as 30. It fits 7 adults. Fully grown 6ft adults and it is comfortable getting in and out. It swallows up people and luggage. It can tow and is amazing with the air suspension with towing and heavy cargo.


I'm just mentioning some issues that might happen and they're not all that bad.

An infiniti qx80 drives like a pig. It's uncouth and just plainly is horrible to drive. The tow hitch is a pain to get to.
The escalate is a joke.
The disco doesn't compare to comfort. And anyway it has even more expensive issues. It's smaller and less luggage space.
Navigator and expedition twins are just not comparable in ride quality.

I think that's it.

The gl is really the best in its class.
And ive had the expedition. Had the infiniti and suburban escapade for a couple months as rentals.

Just a note about what you could expect.
I am very particular about my car...so every detail and noise gets scrutinised for wear and gets sorted. The blower got replaced because I found it to loud. End links because they were worn. Tensioner and pulleys because of squeaks. Etc.
So ymmv

Last edited by kombifan; Feb 19, 2019 at 10:58 PM.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

 Verdad Gallardo
story-1

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-2

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-3

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-4

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-5

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-6

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-7

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-8

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-9

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
Old Feb 19, 2019 | 11:02 PM
  #9  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
Originally Posted by kombifan

quite the opposite.

it's an amazing platform that can tackle anything you throw at it. It has never left me stranded. Never not started.
Its comfortable. Safe. Planted and is as happy at 130 as well as 30. It fits 7 adults. Fully grown 6ft adults and it is comfortable getting in and out. It swallows up people and luggage. It can tow and is amazing with the air suspension with towing and heavy cargo.


I'm just mentioning some issues that might happen and they're not all that bad.

An infiniti qx80 drives like a pig. It's uncouth and just plainly is horrible to drive. The tow hitch is a pain to get to.
The escalate is a joke.
The disco doesn't compare to comfort. And anyway it has even more expensive issues. It's smaller and less luggage space.
Navigator and expedition twins are just not comparable in ride quality.

I think that's it.

The gl is really the best in its class.
And ive had the expedition. Had the infiniti and suburban escapade for a couple months as rentals.

Just a note about what you could expect.
I am very particular about my car...so every detail and noise gets scrutinised for wear and gets sorted. The blower got replaced because I found it to loud. End links because they were worn. Tensioner and pulleys because of squeaks. Etc.
So ymmv
I just sold my Navigator which was a terrible truck in my experience. Granted it was a used vehicle but just over 100k and it always needed something plus was a terrible driving machine to me.
I have owned several Mercedes and currently have an SL55 as the summer toy. I look around and honda pilots used cost as much as the GL450. I’m sure the honda will be very easy to live with but the GL is much more appealing to me. I do get tired of the constant chasing of issues the Germans can give me at times though.
Reply
Old Feb 19, 2019 | 11:19 PM
  #10  
kombifan's Avatar
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!!!
Originally Posted by wrightbenz


I just sold my Navigator which was a terrible truck in my experience. Granted it was a used vehicle but just over 100k and it always needed something plus was a terrible driving machine to me.
I have owned several Mercedes and currently have an SL55 as the summer toy. I look around and honda pilots used cost as much as the GL450. I’m sure the honda will be very easy to live with but the GL is much more appealing to me. I do get tired of the constant chasing of issues the Germans can give me at times though.
I got rid of the expedition when it was 8 years old and turned 90k miles.it traveled to the pH and back.
It was pretty much tired. Left me stranded multiple times and had multiple paint defects. Put me in a ditch a couple times. Cut out in a 3 lane highway regularly.

The gl meanwhile is at 9 and 90k and is as tight as a drum.

Invest in xentry or star and you'll save yourself a lot of guess work.

Last edited by kombifan; Feb 19, 2019 at 11:25 PM.
Reply
Old Feb 20, 2019 | 07:30 AM
  #11  
chsu74's Avatar
Senior Member
15 Year Member
 
Joined: Mar 2009
Posts: 401
Likes: 31
From: CT
GL 450, 993TT, Cayenne Diesel, 964C4
How much emissions parts can you delete? My '09 GL with 70K miles have been reliable outside of emission parts. Currently sorting out a swirl motor/intake manifold issue properly before selling it.
Reply
Old Feb 20, 2019 | 11:35 AM
  #12  
DaveW68's Avatar
MBWorld Fanatic!
Veteran: Army
10 Year Member
Loved
Community Favorite
 
Joined: Nov 2014
Posts: 4,242
Likes: 629
From: Chicago burbs
2015 S550
I bought my GL550 with 40k miles in Dec, 2017. I currently have almost 52k miles and the only things I have done is change the front pads & rotors and 1 oil change. This vehicle has been spot on reliable (knocking hard on wood with one hand as I type with the other). I spent $5300 on a warranty for 4 yr, 45k miles and so far it hasn't had to pay out one cent. The other shoe can drop at any moment....but so far so good.

But I did have a full paint correction & ceramic coating last summer and did buy some 19" wheels clad with Toyo Celsius tires for winter driving (the OEM Conti's on the stock 21's are scary as hell on snow and ice).
Reply
Old Feb 23, 2019 | 12:12 PM
  #13  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
Ended up with a 2011 GL450 110k miles great service history.


Reply
Old Feb 23, 2019 | 12:40 PM
  #14  
DaveW68's Avatar
MBWorld Fanatic!
Veteran: Army
10 Year Member
Loved
Community Favorite
 
Joined: Nov 2014
Posts: 4,242
Likes: 629
From: Chicago burbs
2015 S550
Nice ride! At that age and mileage, you should budget around $4-5k per year in repairs and maintenance, especially if it will be your DD.
Reply
Old Feb 23, 2019 | 01:25 PM
  #15  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
Originally Posted by DaveW68
Nice ride! At that age and mileage, you should budget around $4-5k per year in repairs and maintenance, especially if it will be your DD.
i do all of my own repairs and I mean ALL and I promise it will be nowhere near $4k
I have an SL55 and I may spend $1k per year and that’s a bunch more demanding car.
Reply
Old Feb 23, 2019 | 04:04 PM
  #16  
BlownV8's Avatar
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2003
Posts: 8,882
Likes: 1,214
From: In my garage
E55, GLS450, GL63, GLE350
Originally Posted by DaveW68
Nice ride! At that age and mileage, you should budget around $4-5k per year in repairs and maintenance, especially if it will be your DD.
Maybe for a 350. GL450 should be trouble free for another 100k+ miles with the exception of struts but those can be purchased cheaply with a lifetime warranty.
Reply
Old Feb 23, 2019 | 05:10 PM
  #17  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
Originally Posted by BlownV8
Maybe for a 350. GL450 should be trouble free for another 100k+ miles with the exception of struts but those can be purchased cheaply with a lifetime warranty.
trouble free would be great but I’m sure something will come up. Regardless I am fairly certain it will not be thousands of dollars per year.
Reply
Old Feb 23, 2019 | 08:03 PM
  #18  
kombifan's Avatar
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!!!
Originally Posted by wrightbenz

Y
trouble free would be great but I’m sure something will come up. Regardless I am fairly certain it will not be thousands of dollars per year.
If you go to a dealership for everything yes. It can easily be thousands. My extended warranty paid out about 8k last year. 4K on just one ticket.

If uou do your own work. Much much less. Especially if you buy from a place with a lifetime warranty on parts.
Reply
Old Feb 23, 2019 | 09:50 PM
  #19  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
Originally Posted by kombifan

If you go to a dealership for everything yes. It can easily be thousands. My extended warranty paid out about 8k last year. 4K on just one ticket.

If uou do your own work. Much much less. Especially if you buy from a place with a lifetime warranty on parts.
like FCP you mean ? I do not know of others that offer the lifetime warranty. I really haven’t ever had to replace many things twice. I imagine the airmatic stuff is the one on this car you can plan on replacing every 60k or so.
Reply
Old Feb 23, 2019 | 10:08 PM
  #20  
kombifan's Avatar
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!!!
Originally Posted by wrightbenz


like FCP you mean ? I do not know of others that offer the lifetime warranty. I really haven’t ever had to replace many things twice. I imagine the airmatic stuff is the one on this car you can plan on replacing every 60k or so.
Arnott also has their lifetime warranty on their struts.

But yes fcp euro. I’ve had Idler pulleys and tensioners go more than once, as well as the end links.
The suspension for sure. That’s every 60-80 for oe bilstein or mb or much less for Arnott or other brands.
Reply
Old Feb 23, 2019 | 10:30 PM
  #21  
DaveW68's Avatar
MBWorld Fanatic!
Veteran: Army
10 Year Member
Loved
Community Favorite
 
Joined: Nov 2014
Posts: 4,242
Likes: 629
From: Chicago burbs
2015 S550
It's more than the Airmatic that is prone to failure. Those early M278 motors had issues with oil seals and turbo seals. The 7 speed auto was also prone to problems which can be very costly. COMAND can have problems in all years of the GL & ML trucks, as well as other electronics. Perhaps you'll get lucky and avoid many of these well known issues, but they are very expensive to fix when things go wrong, even if you're handy with a wrench.
Reply
Old Feb 23, 2019 | 11:17 PM
  #22  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
Originally Posted by DaveW68
It's more than the Airmatic that is prone to failure. Those early M278 motors had issues with oil seals and turbo seals. The 7 speed auto was also prone to problems which can be very costly. COMAND can have problems in all years of the GL & ML trucks, as well as other electronics. Perhaps you'll get lucky and avoid many of these well known issues, but they are very expensive to fix when things go wrong, even if you're handy with a wrench.
mine is a 2011 I wouldn’t think this is an early model unless your saying the facelift in 2010 is when things went wrong.
Reply
Old Feb 23, 2019 | 11:18 PM
  #23  
wrightbenz's Avatar
Thread Starter
Member
15 Year Member
 
Joined: Jul 2009
Posts: 100
Likes: 5
From: Chicago
SL55 SLK 320
Originally Posted by kombifan

Arnott also has their lifetime warranty on their struts.

But yes fcp euro. I’ve had Idler pulleys and tensioners go more than once, as well as the end links.
The suspension for sure. That’s every 60-80 for oe bilstein or mb or much less for Arnott or other brands.
the arnott bags do not last as long as the oem ? I would think they would last longer since they offer the warranty.
Reply
Old Feb 23, 2019 | 11:30 PM
  #24  
DaveW68's Avatar
MBWorld Fanatic!
Veteran: Army
10 Year Member
Loved
Community Favorite
 
Joined: Nov 2014
Posts: 4,242
Likes: 629
From: Chicago burbs
2015 S550
Originally Posted by wrightbenz

mine is a 2011 I wouldn’t think this is an early model unless your saying the facelift in 2010 is when things went wrong.
That trans was problematic for several years. I believe 2011 is when the M278 4.7 bi-turbo motor debuted in the GL. It is a great motor and highly tunable, but the earlier models did have issues with oil and turbo seals. Cylinder compression issues were also fairly common throughout several years.
Reply
Old Feb 23, 2019 | 11:38 PM
  #25  
kombifan's Avatar
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!!!
Originally Posted by DaveW68
That trans was problematic for several years. I believe 2011 is when the M278 4.7 bi-turbo motor debuted in the GL. It is a great motor and highly tunable, but the earlier models did have issues with oil and turbo seals. Cylinder compression issues were also fairly common throughout several years.
2013
Reply

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 09:30 AM.

story-0
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-1
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-2
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-3
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-4
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-5
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-6
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-7
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-8
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-9
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE