Tune up before winter sign: What’s it mean?

[ahlam1399]

http://img-s-msn-com.akamaized.net/tenant/amp/entityid/BBGpKs4.img?h=100&w=100&m=6&q=60&o=f&l=f&x=183&y=287Winter Tune-Up-MTO.jpg

أكثر... (http://www.msn.com/en-ca/autos/ownership/tune-up-before-winter-sign-what%E2%80%99s-it-mean/ar-BBGpUnP?srcref=rss)