GLK-Class (X204) Produced 2008-2014

Leaking water pump

Old Mar 9, 2025 | 06:19 AM
  #1  
Mmr1's Avatar
Thread Starter
MBWorld Fanatic!
10 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Sep 2015
Posts: 2,570
Likes: 342
2013 glk 350
Leaking water pump

My 13 Glk water pump has been leaking 6 months . I’ve used maybe 3/4 gallon antifreeze in 2000 miles but now it’s leaking a bit more. Will or can it start to turn into a big leak that can ruin my motor ? I have the pump, but I’m a bit busy - lazy to go through getting a mechanic to do it. I bought a replacement tension pulley, Belt and hoses are maybe 6 months old . Should I replace more of the pulleys or anything else? 85,000 miles .
Reply
Old Mar 9, 2025 | 06:43 AM
  #2  
DenisMcG's Avatar
Member
Veteran: Canadian Forces
 
Joined: Oct 2023
Posts: 109
Likes: 34
2015 GLK 250 Bluetec
The only concern for the engine would be damage from possible overheating due to loss of coolant. A bigger concern would be that the bearing in the water pump seizes and the pulley gets broken. This could cause all kinds of damage to the front of the engine. I strongly suggest that you bite the bullet and get it changed asap.
Reply
Old Mar 9, 2025 | 11:30 AM
  #3  
habbyguy's Avatar
Super Member
Photogenic
Liked
Loved
Community Favorite
 
Joined: Feb 2023
Posts: 728
Likes: 271
2011 GLK 350 4Matic
This is a bit like the guys you see driving the cars with half a roll of duct tape holding up one of their windows. Sometimes it's on there long enough to get crusty and really nasty.

In the end, the job to fix it right will be exactly as difficult and expensive after they've driven around with tape all over their car for X months (or even years).

Get it done and stop worrying about it. It's not like you're saving anything by putting it off...
Reply
Old Mar 9, 2025 | 12:24 PM
  #4  
JohnnyC's Avatar
MBWorld Fanatic!
10 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Sep 2014
Posts: 1,051
Likes: 216
From: LaLaLand
2015 GLK350 & 2020 C300
Replace this too 2762000156

Reply
Old Mar 9, 2025 | 02:58 PM
  #5  
Mmr1's Avatar
Thread Starter
MBWorld Fanatic!
10 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Sep 2015
Posts: 2,570
Likes: 342
2013 glk 350
What is the flange in the photo ?
Reply
Old Mar 9, 2025 | 03:15 PM
  #6  
Silver Shadow's Avatar
Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2020
Posts: 486
Likes: 150
From: Lac Ste. Marie, Quebec
2006 Alfa Romeo Brera, 2010 GLK350, 2018 BMW 640i GT, 1997 Subaru SVX, 2012 Moto Guzzi Norge GT8V
coolant inlet flange $20 FCP Euro.
Reply
Old Mar 9, 2025 | 03:19 PM
  #7  
calder-cay's Avatar
MBWorld Fanatic!
Photogenic
Liked
Loved
Community Favorite
 
Joined: Jun 2021
Posts: 1,004
Likes: 279
From: South Texas
2014 GLK350 base model (active) ; 2001 E320 base (retired); 2001 Wrangler soft-top
Originally Posted by Mmr1
What is the flange in the photo ?
Part # shown in that Reply: 2762000156



Reply
Old Mar 10, 2025 | 07:39 AM
  #8  
Mmr1's Avatar
Thread Starter
MBWorld Fanatic!
10 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Sep 2015
Posts: 2,570
Likes: 342
2013 glk 350
Ok thanks 👍
Reply
Old Mar 14, 2025 | 05:32 PM
  #9  
JohnnyC's Avatar
MBWorld Fanatic!
10 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Sep 2014
Posts: 1,051
Likes: 216
From: LaLaLand
2015 GLK350 & 2020 C300
Reply
Old Mar 14, 2025 | 07:50 PM
  #10  
John CC's Avatar
MBWorld Fanatic!
Photogenic
Liked
Loved
Community Favorite
 
Joined: Jun 2021
Posts: 1,899
Likes: 507
From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
Originally Posted by Mmr1
Will or can it start to turn into a big leak that can ruin my motor ?
To answer your question, it's unlikely it will suddenly dump enough coolant to cause the engine to overheat, but, over time it will get worse. As long as you stay on top of the leak, and keep topping it off, you should be fine, but, I'd check it every 100 miles or so, top it off, and if it starts to get worse, get it fixed. Right now you're using less than a cup in 100 miles.
Reply
Old Mar 14, 2025 | 07:50 PM
  #11  
Mmr1's Avatar
Thread Starter
MBWorld Fanatic!
10 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Sep 2015
Posts: 2,570
Likes: 342
2013 glk 350
Great a video 👍
Reply

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

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 03:44 PM.