3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
Had to top up the oil yesterday, and I absentmindedly neglected to replace the oil cap. I didn't catch it until the check engine light came on. So its back on, and whatever oil was lost as a result of the cap not being on replaced.
The check engine light is still on. Whats the worst case scenario? I drove about 60km without the cap.
The oil level sensor will sense the capacity of oil, but it does not sense the pressure of the tank. When the cap is opened, there is possibility the oil will be evaporized guadrally. However, the check engine sign may cause from uneven pressure of pump. You still find check engine light-up when you put back the cap. There may have other problem. Try to reset the electric power and see any improve. Otherwise, you should go to the repairing shop.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.