Question from visitor, 04/07/2016 :

Hi, Please help me with this information. I have fitted ContiSportContact 5 on my car. The tire size is 225/45R18.
I have recently measured my tyre tread depth. The results were 3mm tread depth but the tyre wear indicators were already flushing with the tread. So I am confused now because I thought that the TWI will start to show at 1.6mm. I drive a BMW 320i 2013 model. I stay in Johannesburg. I would also like to know that is the height of the tread wear indicator? What is the tread depth of the new ContisportContact 5?

Answer by rezulteo, 04/07/2016 :


It’s true that the Tread Wear Indicator usually starts to show at 1.6 mm. You can find more info on this topic here and here.

The 1.6 mm tread depth is the absolute minimum legal tread depth. However, Continental recommends the following tread depths for tyre replacement:

  • summer tyres 3 mm
  • winter tyres 4 mm

Since your CSC5’s are summer tyres, with just 3mm tread depth left, and you mention the TWI is already showing, we would recommend that you consider changing your tyres soon.

Unfortunately, tyre manufacturers don’t provide us with information on the exact tyre tread depth for new tyres. It is usually between 8 and 9 millimetres. 

Don’t hesitate to contact us for further questions on tyre maintenance or purchase advice.

Kind regards,

Team rezulteo

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