Well Larry I must say that I am completely

Take care

Took the car back. The roadforce readings were 27/26/9/23.

Goodyear replaced 3 tires under warranty. All roadforce readings are now below 15.

Vibration is gone.

Tech claimed that numbers upto 25 were OK in most cases but certain cars have more sensitive suspensions.

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Zafar
94 E320 58000 Miles

larry is correct. if you balance the wheel by first only placing one weight on the wheel, you will have an improper balance.

by using only one weight on one side you effectively change the location of the heavy spot on the tire assembly. that machine doesnt know that you are planning to use the weight on the other side after another spin. it simply asseses the imbalance of each spin and reports.
we calibrate our balancer every morning, and usually after balancing a truck with heavy wheels too.

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'O=00=O'
bmw 2002.
long live the legend

If all the Goodyear tires I balanced left imbalanced than I am simply astonished that all those Mercedes owners were not right back on the service drive complaining?? Hm……15 years with a dealer, many services with rotate & balance tires, plenty of time to experiment, and plenty of time to be very picky about the work I released to a vehicle owner.

In my experience Goodyear tires were simply different when it came to balancing. More often than not the many Goodyear tires I balanced requested an additional weight in a third location (Sorry, this is unacceptable in my mind!!!) When I altered my balancing practice, previously mentioned, with respect to Goodyear tires I simply experienced better results. Either the equipment was bad or all the vehicles I serviced did not have picky drivers. I doubt that either one of these were a possibility since the dealer I was working for cycled 140 to 170 Mercedes vehicles a day, many of those were services that included rotate and balance.

Take care.