Question If wheel bearing seals are leaking, you should: Answers Get the seals fixed. Not be concerned. Add more grease until the seal seems full. Add brake fluid to the bearing. Explanation When inspecting a vehicle, you should ensure that the wheel bearing seals are not leaking. If you find anything unsafe during the vehicle inspection, get it fixed. Federal and state laws forbid operating an unsafe vehicle. This questions appears in the following tests: Illinois Class B Knowledge Test Indiana Class A Knowledge Test Tennessee Class B Knowledge Test Utah Class A Knowledge Test