Mo_Qazi

Hi guys,

I am a recent owner of a mercedes s500 (2010) and am loving the experience. However, while driving when I cross 100 kmh speed, I feel little vibration on the steering. The salesman mentioned that once I replace the tyres it will go, I did replace the tyres but the vibration is still there. I did wheel balancing 2 times and the tire salesman also checked the rims they told me all is good. I also took the car to mercedes authorized workshop and their driver tested the car and told me its a tire issue nothing is wrong with the car as the milage is very less. The car has only done 30000 kms and I got the car from mercedes benz showroom.

Can you please help me? Why am I feeling this vibration and what can I do?

T.H.Carrera

most likely a bent rim.

Mike5215

My 2010 did that on the test drive. The dealer installed camber bolts and did an alignment. Did the trick.

superpop

Go get the Mercedes service adviser and get them in the car and take them for a ride and show them this. Tell them you want it fixed. Should still be under warranty hopefully.

Mike5215

His 2010 is out of original warranty by age (not miles though in his case, but it's whichever comes first). Is it a CPO car?

Mo_Qazi

Thanks Mike. This is the issue, I purchased it from Mercedes dealer but they are not giving me one year warranty (as a general CPO). I think they should as Mercedes gives it in every country, in Aussie they give 2 yrs! I am living in Kuwait and have raised the issue with Mercedes Germany. Its strange that Mercedes Kuwait wont give me warranty..

Mike5215

Right. Here at least the dealer has to pay MB for the certification, plus pay to recondition the car to the extent needed to satisfy MBs certification requirements. So not every used MB gets automatically certified here. Usually just the really clean ones.

But an MB dealer or indie can do an alignment and determine if the car needs camber bolts. I'd start there. If you rotate the front wheels to the back and vice versa and the vibration stays it's not a wheel issue, although 90% of vibration problems at certain speeds is a wheel/tire problem.

Are these OEM wheels in the factory offsets (no spacers, not aftermarket wheels, etc.?) On the back side of the wheels there should be a stamped part number that starts A221...

A lot of replica wheels look totally authentic but they'll lack that stamp, and most replica wheels are in a 35mm offset vs 44mm on OEM. They can, occasionally, cause vibration problems up front.

Mo_Qazi

Thank you Mike, yes these are OEM wheels 100%. I think I will take the car to the dealer and suggest we rotate the wheels to see if it resolves the issue.

Mike5215

Definitely need to swap fronts for rears and see if the vibration migrated from the steering wheel to the seats.

alx

Have the tires balanced using a road force machine.

Mike5215

^Yes, and have them measure run-out while it's on the RFB machine. Minor extra step but it can find something the balancing can't detect or fix.

Mo_Qazi

Thx alx, I have already tried balancing two times with the tire dealer. Is balancing using road force something different?

alx

Look up hunter road force balancing machine. You want that one to balance difficult wheels (or find what is wrong). Any model with road force drum will do.