Engine ticking noise
MBWorld Fanatic!
Joined: Jun 2021
Posts: 1,008
Likes: 280
From: South Texas
2014 GLK350 base model (active) ; 2001 E320 base (retired); 2001 Wrangler soft-top
Maybe a 30 second YouTube video highlighting the ticking would be helpful. One person's ticking might be very different than others think ...
MBWorld Fanatic!
Joined: Sep 2013
Posts: 2,346
Likes: 692
2021 GLB250 FWD, 2023 GLA250 FWD, 2013 C250, 2015 GLK350, 2005 ML350SE, 2003 E320
Dry and cracked serpentine belt
Cracked plastic pulley or idler
Loose exhaust manifold
Cracked exhaust manifold
Valve train component
Dry and cracked spark plug insulator
And on and on …
An auto diagnostics stethoscope can help pinpoint the location. Just be careful around the belt, pulleys, and radiator fan.
Senior Member
Joined: Feb 2020
Posts: 490
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
Mine has ticked since the day I bought it 4 years ago. It hasn't gotten worse in that time. I just assumed it is normal. What, me worry.
Newbie
Joined: Feb 2024
Posts: 12
Likes: 0
2014 GLK 250
I bought my 2014 GLK 250 Bluetech brand new. And this year comes my 10th year of ownership. There is always a clicking noise from under the hood. I can only notice it when I slowly crews close to a wall on the driver's side with window down, so the clicking noise would bounce back to me. The clicking time interval is about every 3-4 seconds. If what I have descripted is same as what you have experienced, I wouldn't worry about it.
MBWorld Fanatic!
Joined: Sep 2015
Posts: 2,583
Likes: 342
2013 glk 350
The high pressure fuel pump clicks, mine does, my 13 always has a bit. There are different “clicks” , valve lifter , timing chain , high pressure fuel pump, main bearing, , I can’t hear it from here. Use a stethoscope to pinpoint it. , just a broom stick will work!
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Senior Member
Joined: Apr 2013
Posts: 445
Likes: 8
From: Tucson AZ
2010 Mercedes GLK 350, 2001 BMW Z3 3.0 Roadster, 1997 Cherokee XJ
Interesting & helpful comments regarding the engine ticking noise. Several possible causes are mentioned, some of which I had not considered. Another one to consider is wear in the counterbalance shaft chain. This applies only to the 2009-2012 models because the engine introduced in 2013 is a 60 degree V design. It does not have the counterbalance shafts.
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