How Hot Should A BMW Run? 240F – 250F is normal operating temp for a 335. “Normal” is 212, but it will go as high as 234 when cruising. The DME has 3 or 4 different modes it uses… when you’re cruising on the highway it will go as high as 234 to burn off
What Is The Best Engine Temperature? Most experts agree that your engine should run between 195 degrees and 220 degrees. In ideal situations, your needle will maintain a posture right in the middle of your gauge. Keep in mind that this can go up or down depending on the conditions in the vehicle itself (such