2016 GLC 300 whining noise
#1
Newbie
Thread Starter
2016 GLC 300 whining noise
I get the message about the battery and hear this noise (see attachment). Does anybody know what that could be and if they are related?
#2
"Low battery" warning.
See
System button. - Dynamic - Engine voltage
engine run 13.5volt ~ 14.9 (alternator good)
/ engine off 12.2 v ~ 12.5 (battery)
If the original battery never been changed 8 years, it's time anyway to
get a new AGM battery.
Check
alternator & Serpentine belt
See
System button. - Dynamic - Engine voltage
engine run 13.5volt ~ 14.9 (alternator good)
/ engine off 12.2 v ~ 12.5 (battery)
If the original battery never been changed 8 years, it's time anyway to
get a new AGM battery.
Check
alternator & Serpentine belt
#4
Voltage might be in good range but amperage might not.
Again, the cheapest thing to do is,
If the original battery never been changed 8 years, it's time anyway to get a new AGM battery.
H7-AGM type at Costco about US$250
Or
Wait until you see more obvious symptom.
Again, the cheapest thing to do is,
If the original battery never been changed 8 years, it's time anyway to get a new AGM battery.
H7-AGM type at Costco about US$250
Or
Wait until you see more obvious symptom.
Last edited by sn202020; 08-08-2024 at 08:35 PM.
#6
Your noise at 1500rpm sounds might be
- Serpentine belt
- pulleys - idler, AC, alternator, tensioner
- turbo bearing - not likely.
1. Hear and find noisy location under the hood at 1500rpm
2. Remove Serpentine belt and turn all the pulleys by hand and hear if any bearing is noisy. If possible, add some bearing grease into the noisy pulley bearing to see if it fixes. (My alternator pulley, OAD, was noisy and replaced)
3. Remove turbo intake hose and feel the fan blade bearing's play. Less than 1mm up/down and side/side is normal, I belive.
- Serpentine belt
- pulleys - idler, AC, alternator, tensioner
- turbo bearing - not likely.
1. Hear and find noisy location under the hood at 1500rpm
2. Remove Serpentine belt and turn all the pulleys by hand and hear if any bearing is noisy. If possible, add some bearing grease into the noisy pulley bearing to see if it fixes. (My alternator pulley, OAD, was noisy and replaced)
3. Remove turbo intake hose and feel the fan blade bearing's play. Less than 1mm up/down and side/side is normal, I belive.
Last edited by sn202020; 08-09-2024 at 12:38 AM.
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mikapen (08-24-2024)
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mikapen (08-24-2024)