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.

Engine warning light from oxygen sensor

Rachael D
in BMW 2 Series Forum

Featured Replies

I have a BMW 1.6 sport 2012 and on day of passing mot with no advisory’s the engine light later came on been back and forth to garage who diagnosed oxygen sensor this was replaced and light always comes back on the 2nd time I drive the car- the ECU was sent off for diagnostics as they said it was a known fault with my make model etc they kept ECU for nearly 2 weeks and returned it with “no faults” so all 3 components checked multiple times sensor ECU and wiring - the light is back on and all garage is saying now is go to BMW any ideas welcomed gratefully as can’t afford to go to BMW atm car drives fine 

  • Quote

    Morning Rachael

    O2 sensors measure the ratio of air to unburnt fuel in the exhaust before and after the Cat so the engine management can make adjustments, so you have 2. An air or vacuum leak can trigger the EML (engine management light) as can EGR issues 

    If I were you I would Google the Register of BMW Specialists and find one near you as they will (a) have the equipment to diagnose your cars issues properly (b) they are not going to be any more expensive than the Garage you just used.

    I hope this helps

    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/18459-engine-warning-light-from-oxygen-sensor/
    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.