GLK350 Engine Whine when Accelerating
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Joined: Feb 2013
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GLK 350
GLK350 Engine Whine when Accelerating
GLK350 Engine Whine when Accelerating
I have a 2010 GLK350, with about 45000 miles on it. All of a sudden today my engine started producing a loud whining sound when I push on the gas. I can hear it pretty well even with the windows closed, and it's most prominent at lower gears.
I can reproduce the sound even with the car parked and applying some gas the rev the engine.
I'm not sure if this is a coincidence or not, but I drove my car to work in what was like monsoon storm the day before I heard this sound. The rain was nearly impossible to see in when on my way to work, and I even hit some large patches of flood water pooling up in the road that I hydroplaned through, thankfully I didn't crash. But intense splashes shot up, and also huge splashes coming from the other side of the highway that splashed as high as my windshield. I don't think I did anything wrong, and don't think water could do this, but I'm mentioning just in case someone might think it's correlated.
I have a 2010 GLK350, with about 45000 miles on it. All of a sudden today my engine started producing a loud whining sound when I push on the gas. I can hear it pretty well even with the windows closed, and it's most prominent at lower gears.
I can reproduce the sound even with the car parked and applying some gas the rev the engine.
I'm not sure if this is a coincidence or not, but I drove my car to work in what was like monsoon storm the day before I heard this sound. The rain was nearly impossible to see in when on my way to work, and I even hit some large patches of flood water pooling up in the road that I hydroplaned through, thankfully I didn't crash. But intense splashes shot up, and also huge splashes coming from the other side of the highway that splashed as high as my windshield. I don't think I did anything wrong, and don't think water could do this, but I'm mentioning just in case someone might think it's correlated.
Newbie
Joined: Apr 2012
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From: Mississauga, Ontario
2012 GLK 350
Could it be the transmission? Mine is a 2012 and complained of slight whining sound especially at slower speeds. Mechanics heard sound coming but not sure. Germany corporate recently told them to replace both the transmission and transfer case. Getting this done next week.
Senior Member
Joined: Sep 2012
Posts: 323
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From: Ottawa ON Canada
2015 ML350 Bluetec
Glk350s have had a problem with some of the trans/differentials and the dealer will replace under warranty. Another source of the whine can come from the belt turning your AC compressor. You mentioned driving through lots of water, quite possibly allowing the belt to slip... and whine! Try turning the AC off (meaning the AC button) to disengage the ac clutch. If the wining stops, or sounds different change out your belt.
cheaper than a tranny/diff out of warranty!
cheaper than a tranny/diff out of warranty!
Super Member
Joined: Sep 2011
Posts: 714
Likes: 38
From: CANADA eh!
Very very slow
I am surprised to hear a 2012 has transmission/transfer case failure.
However, the OP were able to produce the similar noise when the car is parked.
So I don't think it's related.
However, the OP were able to produce the similar noise when the car is parked.
So I don't think it's related.
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Joined: Mar 2014
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2010 Mercedes Benz GLK350 4Matic
I had the Engine whine noise right after my GLK was out of warranty. I got it checked at the dealership, they told me it was the idler pulley and they replaced the idler pulley and belts and charged me $500. Still the noise was present, so I took my car back and they told me it was alternator (worn out bearings). I used a stethoscope to make sure it was alternator and it was.
Dealership quoted me $1100 for alternator and $500 for the labor plus taxes. Since my car was already out of warranty,so I decided to take my car to an certified technician to get the alternator replaced. I ordered the alternator thru www.buyautoparts.com, which cost me $400 (with $75 refund for the core) and the technician charged me $130 for 2.5 hours job.
My GLK is quiet again, as a brand new car.
Dealership quoted me $1100 for alternator and $500 for the labor plus taxes. Since my car was already out of warranty,so I decided to take my car to an certified technician to get the alternator replaced. I ordered the alternator thru www.buyautoparts.com, which cost me $400 (with $75 refund for the core) and the technician charged me $130 for 2.5 hours job.
My GLK is quiet again, as a brand new car.
