bmw525dreg05.nocking soud from dasbord

2005 BMW 525
117,000 MILES
Avatar
JANNAH
  • MEMBER
  • 1 POST
when the car is moving i can heare nocking sound.
Dec 2, 2011 at 9:31 PM
Advertisement
Avatar
DRCRANKNWRENCH
  • ✓ASE Certified Mechanic
  • 3,380 POSTS
  • ASE Certified Mechanic
Listen for the location of the noise with the engine running and the hood open. You may need someone to help if it needs to be in gear to hear the knocking.
You could have bad gas or need a higher octane or have an engine knock from the top end or bottom end.
Dec 3, 2011 at 12:43 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.