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VW Eos - Awful sawtooth tyre wear and noise


bbrbob
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Hi, can one of the experts give me some advice please?  I bought a 2010 VW Eos Sport TDI with the 235-18 tyres last year.  I treated it to brand new Uniroyal Rainmaster tyres all round but now have awful sawtooth wear on them with the associated droning going on at any speed above 10mph. 

 

I've read some good stuff online about what casues this but also a load of junk.... So really my question whether there is anything that can be done to help this by changing alignment settings (even if it were slightly outsite of VW tolerances) and whether anyone has any suggestions for tyres that are more resistant to this type of wear...

 

Thanks.

 

Bob.

 

     

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Hello and welcome to wim

I assume we are talking the rear tyres and the wear is on the insides? Sawtooth ( real condition called Heel and Toe ) is due to incorrect longitudinal toe position or tracking so the tyre trade like to call it. Toe is the direction the tyre is taking -V- the direction of travel, in a perfect world the tyres contact position would be perfectly aligned with the cars actual path.

 

Incorrect toe laterally scrubs the tread but favours certain sizes of tread blocks, historically the smaller blocks wear more than the larger blocks leaving a stepped effect hence the harmonics when driving. On most cars nowadays the rear toe is adjustable but the actual setting needs some lateral thinking? Reason i say this is the manufactures settings/ datum is only a suggestion! The tyres condition is however a matter of fact, so if the wear is on the inside then lateral wear is due to a toe out position meaning if the reading is in the tolerance or not move the toe in.

 

If your car has a rear beam then thing get a little more difficult because normally the toe angle is fixed but if one tyre is wearing more than another then i would move the beam to compensate.

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