Vibration though the floor and seats
11-19-2020, 02:38 AM
#1
Vibration though the floor and seats
Hi Friend, I need help with My 2016 GLC300 4Matic that vibration coming from underneath the car at freeway speed 70mph up . Vibration is very notable though the floor and seats ( not steering wheel ) any idea what is causes the problem. Thank you in advance
11-19-2020, 08:17 PM
#2
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Join Date: Jan 2019
Location: Palm Beach, Fl
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2016 S550 sport, 2018 GLC300, M3, Zo7, 2021 Sierra Denali
When you feel it in your seat it is usually a rear tire, not a front. Check your tire pressure and inpect your tires for damage is first on the list. After that could be a lost wheel weight, and need balancing or could be a bad shock also. Have you hit any potholes lately? Bent rim? Tires also go out of balance as they wear. Might be time to rotate and balance. Good luck
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PaulGLC300 (11-19-2020)
11-19-2020, 10:26 PM
#3
I hit potholes once and slightly Bent the wheel but have it fixed by the Dealer . All Tires are new and been balance twice at dealership . But vibration still remain. Car is run out of warranty now
11-20-2020, 08:43 AM
#4
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Join Date: Jan 2019
Location: Palm Beach, Fl
Posts: 495
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2016 S550 sport, 2018 GLC300, M3, Zo7, 2021 Sierra Denali
Personally I would find an independent tire shop that has a roadforce balance machine. It will check tire and rim and does a much better job of balancing the tire/rim. I have had this issue and it was crappy tires. Michelins were the fix. I was shocked at how many tires the roadforce balance rejected. Some brands are just terrible. If you did not have this probelm when new I will bet it is tire/rim related. It is possible to be a bad hub/bearing and they can do a hub runout with a dial indicator. They also do this to check your rotors which is also a possibility. 95% of the time it is tires. Good luck
