GLK-Class (X204) Produced 2008-2014

120,000 mile additional maintenance items

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Apr 22, 2019 | 08:43 AM
  #1  
LadyS's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2019
Posts: 64
Likes: 3
GLK350
120,000 mile additional maintenance items

Happy Monday!

I am about 2 months away from 120,000 miles (193,000ish Kms) on my GLK350.

The maintenance manual has a hefty list of maintenance items, including spark plugs, and a transmission service. Brake fluid is being changed, as well.

I flushed the power steering at 110,000, and did an oil change on the rear differential oil.

All non-wear items are original, and I’ve been trying to find a list of common issues, or failure points that can be proactively replaced. I’d rather be able to schedule work, and plan a day off around it, rather than waiting to replace stuff after it’s broken.

The only things that come to mind for me are the basic things. Starter, alternator, battery. Battery under the hood was replaced in October with an MB battery.

Shocks/struts front and rear are on the list, no noise or indications of failure - but my car rides harder than a friends 2012 with 50,000 fewer miles.

Ive seen FCPEuros write up about the M272 that’s in my car, and they indicated the intake manifold, and the air injection pump are common areas where issues arise.

Any other ideas, or things people seem to run into regularly?

Thank you!
Reply
Old Apr 23, 2019 | 02:47 PM
  #2  
lyonkster's Avatar
Member
 
Joined: Dec 2012
Posts: 153
Likes: 8
2011 GLK350
You have the regular maintenance items already listed, I just finished doing this on ours. I also had to replace a leaking centrifuge/separator thingie at around 110K, so you might want to have a look there. I also replaced the three cam plugs while I was there, that was a five minute job.

The dealer replaced the entire intake manifold under extended warranty at around 100K, that was a $4000 job on Mercedes' dime. They replaced the entire manifold, even though there are much cheaper solutions out there if you are willing to spend some time on it.
Reply
Old Apr 23, 2019 | 04:56 PM
  #3  
LadyS's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2019
Posts: 64
Likes: 3
GLK350
Originally Posted by lyonkster
You have the regular maintenance items already listed, I just finished doing this on ours. I also had to replace a leaking centrifuge/separator thingie at around 110K, so you might want to have a look there. I also replaced the three cam plugs while I was there, that was a five minute job.

The dealer replaced the entire intake manifold under extended warranty at around 100K, that was a $4000 job on Mercedes' dime. They replaced the entire manifold, even though there are much cheaper solutions out there if you are willing to spend some time on it.
the centerfuge/separator is the same as the “PCV” valve, yes? FCP has a breather repair kit that includes the hoses, replacement valves, and some plugs for a mere $162.

I’ll add that, and the cam plugs to my list. I think I saw a cam plug kit on FCP, as well.

I didn’t see any DIYs that walked through re-habbing the intake manifold, and if I can get one for less than 700/800$, id rather just swap out the entire unit. I get nervous when it comes to taking things apart and replacing inside bits.
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 03:36 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