Another Emissions warning light.

[Wildfire]

So it just came on after I got a mile down the road.

Should I give it a few runs to see if it goes out or just swap out the Lambda sensors?

Can someone point me to where they are located and a part number at all? Please say it's not an exhaust off job!

 

[AnttiO]

Read fault codes first with proper reader (dis, inpa, bmwwhat).

 

[andysat]

At least yours is not a 2.0

 

[Wildfire]

Cool. Anyone got one and fancy decoding it for a few beer tokens?

 

[Wildfire]

Right, it's just gone out. I'll wait and see if it re-surfaces.

 

[Georgio]

You need to read the OBD information to find out for sure what the error code is. Buy a cheap reader of Flea-bay (about £40) that allows you to read and reset the codes; you have a Z4 so it's part of the maintenance kit for the marque.
You'll probably find it's one of the two O2 sensors either side of your CAT not tallying up with it's partner which is usually a fuel issue and absolutely nothing to worry about.
Just get the reader foe piece of mind.

 

[andysat]

You need to read the OBD information to find out for sure what the error code is. Buy a cheap reader of Flea-bay (about £40) that allows you to read and reset the codes; you have a Z4 so it's part of the maintenance kit for the marque.
You'll probably find it's one of the two O2 sensors either side of your CAT not tallying up with it's partner which is usually a fuel issue and absolutely nothing to worry about.
Just get the reader foe piece of mind.

That's what I was first told many moons ago.

 

[Scooba_Steve]

£25 from bmcables, saves you a fortune. Not quite sure why you'd just go straight into replacing things without knowing what codes it was throwing... :?