Emissions Service light gone off

[VEIGHT]

How long before it comes on again?

The light has been on for a few weeks but as I haven't driven it much I thought I would get it looked at with the next service which is coming up shortly!

Today it didn't come on when I started the car, how long have I got before it comes on again?

[Bravo73]

How long is a piece of string?

There are too many variables at play to tell you if or when it might come back on. Some do, some don't. If the sensor is knackered then it will definitely come back on.

[bomberh]

When you have your service, as the dealer to check all four of the sensors to see if one is playing up. It is a common problem, which is covered on here quite a lot. Most of us have OBD sensor readers to turn this off, if it keeps coming up, until we can get it checked out.

It has happened to me quite a lot over the last 11 months, so much so I have had 2 of the four sensors replaced. However, I am not the norm regarding this.

Like it has been said, there are too many variables with this warning message, sometimes it sorts itself out, sometimes it stays on all the time when you know there isn't anything wrong, (had a sensor replaced, or the message has been reset by the dealer and it comes up again).

just ask them to check it out, the diagnostic will tell them if there is something wrong.