Jump to content
Ad: Genuine BMW parts & accessories from the BMW official store on eBay ×

Car emissions advice

X5smw

By X5smw,
in 2001 Onwards Mini Forum

 Share

Recommended Posts

X5smw Community Regular

X5smw

Posted
Posted

Evening all.. my friends mini 1.6 just failed its mot on emissions. 
can someone point me in the right direction. Does this sound like lamda sensor failure or cat failure? 
 

thanks!

stu 

9fc4d322-b38f-40f7-8129-f8d35c4ddbde.jpeg

816bac12-2b51-46d0-9b7c-b25d570e7419.jpeg

Greydog Grand Master

Greydog

Posted
Posted

Morning Stu

Could well be O2 sensors failing that is where I would start but normally they would throw an engine light.

It needs a scan to be sure, could be just general accumulation of wear and tear. Things like MAF, engine EVAP system. Vacuum lines, Air leaks even a compression test 

Good Luck

Dave

  • 1 month later...
X5smw Community Regular

X5smw

Posted
  • Author
Posted

Quick update after a long pause….. 

filled it up with premium unleaded and redex and took it for a run…. Did this all week til it ran through the fuel and then repeated. Took it for an hours drive before the mot and it passed its emissions test. 👍🏻👍🏻👍🏻

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.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing




  • Latest Topics

    1. 0

      Access to Battery terminals on BMW 1 Series 2020

      Hi, Does any one know how to access the Battery terminals on BMW 1 Series 2020, 118I. The battery is in the engine compartment and the red cap is visable, however I want to connections from the battery terminals? Many thanks.
      Max123 in BMW 1 Series Forum
    2. 0

      Remove front seat back panel for BMW 1 series 2020 118i

      Hi , Does anyone know how to remove front seat back panel for BMW 1 series 2020 118i. The are no visble screws or caps? Many thanks.
      Max123 in BMW 1 Series Forum
    3. 3

      Rough idle problem

      Hello Dave, Just an update and I think you may be right. Went out and gave it a few revs when cold, nothing. Let it warm up and there was a loud “shoooo”. I’ve attached a photo of where the sound was coming from. Going to get it looked into but do you have any idea of what it could be? First BMW, always had vag cars so engine are a little different to what I’m used to
      BLM06 in BMW 1 Series Forum
    4. 3

      Rough idle problem

      Hello Dave thanks for your reply, thanks for the reply and it does sound like that could be the problem. I was thinking injector but never pops an engine light up so wasn’t certain. Was serviced 6500 miles ago but was just oil and filters. Going to check later and see if I can see any visible cracks or splits. Got a friend who has a garage and will obd and smoke test it for me. Billy
      BLM06 in BMW 1 Series Forum
    5. 1

      E53 petrol fail safe again.

      Morning Stu Long time since I played with a straight six so the old memory might be wonky here so check realoem From memory it is linked to the Air Pump and Vacuum control system. Find the Airpump and follow the Vac lines to the rear of the engine you should find a valve with a plug on top (or end) first make sure all lines are good no splits or cracks check the valve is operating, dont forget there is a non return vale in the system close to the inlet manifold. Hope this helps Dave
      Greydog in BMW X5 Series Forum

  • Recent Achievements

    • Conversation Starter
      Max123
      Max123 earned a badge
      Conversation Starter
    • First Post
      BLM06
      BLM06 earned a badge
      First Post
    • One Year In
      Driverbus70
      Driverbus70 earned a badge
      One Year In
    • Conversation Starter
      BLM06
      BLM06 earned a badge
      Conversation Starter
    • Conversation Starter
      Marvin chui
      Marvin chui earned a badge
      Conversation Starter

×
×
  • Create New...

Forums

News

Membership