Hi I have a 2010 Mercedes e class rwd. It hasn’t been stock in years but I’ve been running 255/35/19 front and 275/35/19 rear. I recently went to 235/40/19 front and 285/35/19 rear. I love the ride so much better but I think it gave me a few weird shifts or maybe I imagined it. I was wondering if this is a large enough size to mess up the transmission of the car if I continue to drive with this setup. The wheel widths are 8.5 front and 9.5 rear if that helps.
yeah, changing tire sizes like that can mess with your transmission’s shift points. it’s best to stick with the manufacturer’s recommended sizes to avoid potential issues.