Engine light just came on
 

Driving at about 40 mph on a digi speed camera ridden A428, the engine shaped yellow light (not the EML light) just came on out of the blue :smt017. In the handbook it says "Exhaust emission values have deteriorated. Please arrange for the problem to be examined by BMW Service." Could this be yet another Lambda Probe ? :banghead: The car already had one of these under warranty @ 39 000 in 2006. Is this a common fault ? :whistle:

It will be because you have 100 cell cats on your car. Common occurence - no problems.

So what do I need do next then ? :smt017

Nowt! It will probably go away the next time you drive it...

Right ... so I should just get use to this light coming on from time to time. I'll check it again in the morning and see if it clears itself overnight. I presume the ECU will keep this fault in it's memory. Is it worth having a diagnostic plugged in to clear any stored faults ?

Mine has only come on once in the 15 months i've had 100 cell cats on.

The light came on and i shit myself :hahaha: but in the morning the light had gone off.

Like Rob says no biggy :thumbs:

Yep... I too had a bit of a brown moment myself :smt053 yesterday, then I thought (worst case scenario) at least I have a BMW Warranty (though I didn't want the hassle). Unfortunately I started her this morning and the light is still staying on :smt017. Any further thoughts ??? :whistle:

are you using decent petrol. When I had 100 cell cats it came on if I ever put lower grade petrol in. I'm running decats now and Its on 90% of the time, regardless what I put in, I've just got used to the light staying on :)

Well, I put £50 worth of Tesco's 99 Super Unleaded in yesterday morning (didn't have much choice at the time) which seems highly recommended by many (though I prefer Shell's V-Power 98 :tonqe:) and it was OK for most of the day, until I was driving back home at very slow speed through road works, doing amazing MPG and suddenly the light just came On. It's still on this morning :bigcry:

yep, nothing wrong with the fuel, just high emissions then ;)