Vibration at 40mph from rear right wheel
Thread Starter
Junior Member
Joined: Jan 2006
Posts: 15
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From: Boston, MA
'95 e320 Wagon, '92 300TE
Vibration at 40mph from rear right wheel
Hi everyone,
We have a 2004 C320 4matic wagon with 63K. We bought it in February and pretty much immediately thereafter we had new Michelin tires installed. Before doing so we noticed a noise that came from the rear right tire. It only happens when the car is going up an incline at roughly 40 mph. The sound is sort of like the sound you'd hear when going over a grated bridge (pulsating only for a few seconds from the one tire in the rear). If I accelerate or slow down it goes away.
Once we put the tires on the noise didn't go away but the tire shop pointed out that we had a significant dent on the inner right rear rim (who knows how long it was there as we just acquired the car). I found a replacement rim online and had them put it on the car. Anyway, the noise is still present from the rear right wheel/tire.
Any ideas as to what could cause this noise? Could it be a sensor of some sort...again, this is a 4matic model.
thanks,
Michael
We have a 2004 C320 4matic wagon with 63K. We bought it in February and pretty much immediately thereafter we had new Michelin tires installed. Before doing so we noticed a noise that came from the rear right tire. It only happens when the car is going up an incline at roughly 40 mph. The sound is sort of like the sound you'd hear when going over a grated bridge (pulsating only for a few seconds from the one tire in the rear). If I accelerate or slow down it goes away.
Once we put the tires on the noise didn't go away but the tire shop pointed out that we had a significant dent on the inner right rear rim (who knows how long it was there as we just acquired the car). I found a replacement rim online and had them put it on the car. Anyway, the noise is still present from the rear right wheel/tire.
Any ideas as to what could cause this noise? Could it be a sensor of some sort...again, this is a 4matic model.
thanks,
Michael
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Likely a damaged wheel bearing or side shaft (CV joint). If it has had a hard bang on that wheel part of the park brake assembly might have become dislodged. You need to investigate that hub properly. I will find you a diagram.
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Joined: Jul 2009
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From: Houston, Texas
2014 Mercedes Benz E350
mine did tht too when i first put my after market rims on. when i reached up to about 40-45 mph the car strted shaking so i got an alignment and had all my wheels balanced. after tht the shaking stopped. about a month later i hit a pot hole and messed up my cv joint so it could be ur cv joint. because as u explain the shakin and sound is coming from one wheel only so it is either a bent rim or cv joint problem
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Presume your new wheel is correctly torqued? If you are going to DIY let me know & I will pull diagrams of the rest of the sub frame & suspension.
Last edited by Glyn M Ruck; Sep 19, 2009 at 07:05 PM.
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Mercedes-Benz
check out my nightmare thread about the 40mph vibration.
Glyn remembers I'm sure
https://mbworld.org/forums/c-class-w...-50-70mph.html
Glyn remembers I'm sure
https://mbworld.org/forums/c-class-w...-50-70mph.html
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From: Toronto, NYC
2002 Mercedes Benz C230 Coupe
Definitely a wheel balancing problem. Your rims might be bent from hitting a road bump too hard, thereby throwing the balancing off...remove the wheel and check the inside of the rim for bumps.
If it looks OK, have the wheels rebalanced from a reputable shop that specializes in wheels/tires (bad experience from balancing at a general mechanic shop).
Drive steadily at the speed that causes the vibrations and notice there the vibrations are felt the most - the steering wheel or the seat. If its the steering wheel, balance the front 2 wheels. If its the seat, balance the rear 2 wheels.
If it looks OK, have the wheels rebalanced from a reputable shop that specializes in wheels/tires (bad experience from balancing at a general mechanic shop).
Drive steadily at the speed that causes the vibrations and notice there the vibrations are felt the most - the steering wheel or the seat. If its the steering wheel, balance the front 2 wheels. If its the seat, balance the rear 2 wheels.
MBWorld Fanatic!
Joined: Nov 2001
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Mercedes-Benz
Haha yeah I'm doin well, hope you are too!
CLS550 ran into some rattle issues. They pulled out the huge wood trim piece and insulated it... still had issues so they insulated the ash tray... still had issues and ended up installing a new COMAND unit. Rattle was coming from the COMAND unit.
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Joined: Jun 2008
Posts: 19,942
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Definitely a wheel balancing problem. Your rims might be bent from hitting a road bump too hard, thereby throwing the balancing off...remove the wheel and check the inside of the rim for bumps.
If it looks OK, have the wheels rebalanced from a reputable shop that specializes in wheels/tires (bad experience from balancing at a general mechanic shop).
Drive steadily at the speed that causes the vibrations and notice there the vibrations are felt the most - the steering wheel or the seat. If its the steering wheel, balance the front 2 wheels. If its the seat, balance the rear 2 wheels.
If it looks OK, have the wheels rebalanced from a reputable shop that specializes in wheels/tires (bad experience from balancing at a general mechanic shop).
Drive steadily at the speed that causes the vibrations and notice there the vibrations are felt the most - the steering wheel or the seat. If its the steering wheel, balance the front 2 wheels. If its the seat, balance the rear 2 wheels.
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From: Diamond Bar, CA
W206 PHEV AMG
I don't have time for two boards - have not been on Benzworld forever.
Thread Starter
Junior Member
Joined: Jan 2006
Posts: 15
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From: Boston, MA
'95 e320 Wagon, '92 300TE
Thanks everyone - I'll definitely have my mechanic look at the CV and wheeling bearing. Someone else on another board mentioned they had the exact same symptoms and it turned out to be a defective sub-frame mount bushing.
I won't be going in for a couple of weeks but I will be sure to post back findings.
thanks again,
Michael
I won't be going in for a couple of weeks but I will be sure to post back findings.
thanks again,
Michael
