Jump to content
View in the app

A better way to browse. Learn more.
Bimmer Owners Club - BMW Forum for BMW Owners

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Knocking

Mark Watson
in BMW 3 Series Forum

Featured Replies

Hi Experts,

                     I have a worrying knock on my 2010 E93 Convertible.  On start up I get a knocking sound for only a second then it disappears. The car runs and sounds fine..if I stop and start there is no sign of the knock. But if I leave the car for a few hours the knock re appears..

 

any suggestions or have you heared of the same problem..

 

thanks

  • Quote

    More information about the car, what engine? how many miles? what service history?

    Stu has probably nailed it as an oil distribution issue, when the engine is off oil is draining back to the sump so no pressure in the chain tensioner or lifters or both. Try turning the engine 2 or 3 times but not letting it fire to build pressure see if that helps.

    If it does then you could try 5-40 grade oil that may help short term, but the only real cure is an engine out job to fit a new oil pump and pressure switch plus chain tensioners

    Dave

     

  • Quote

    • Latest Deals

    BMW Official Store for genuine BMW parts & accessories

    Disclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase via eBay links

    Join the conversation

    You can post now and register later. If you have an account, sign in now to post with your account.
    Note: Your post will require moderator approval before it will be visible.

    Guest
    Reply to this topic...
    https://www.bimmerownersclub.com/forums/topic/19018-knocking/
    Go to topic listing
    eBay disclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase you make on eBay via the club.

    DISCLAIMER: Bimmerownersclub.com is an independent BMW car forum for owners of BMW vehicles. The club is not part of BMW nor affiliated with or endorsed by the offical BMW AG in any way. The material contained in the forums is submitted by the general public, and is not endorsed by Bimmer Owners Club, BMW AG, or Bayerische Motoren Werke AG. The official website for BMW AG can be found at http://www.bmw.co.uk
    Background Picker
    Customize Layout

    Configure browser push notifications
    Chrome (Android)
    1. Tap the lock icon next to the address bar.
    2. Tap Permissions → Notifications.
    3. Adjust your preference.
    Chrome (Desktop)
    1. Click the padlock icon in the address bar.
    2. Select Site settings.
    3. Find Notifications and adjust your preference.