This light has lit up on the car tonight coming home from work.

Viewers of Briskoda may recall me having the light on last month when the fault turned out to be an EGR valve leaking oil.

I have had a look tonight and it appears that there is a broken black seal to the left hand side of the valve, separating it from a black pipe. It is hanging down and there is side to side movement in the pipe. There is a little oil on the sheathing of wires below and on the brake fluid reservoir.

The EGR valve itself is free from oil.

I plan to get a new seal a fit as soon as they can get me one. Does anyone know if the light will go out or whether some damage has been done to another part?

Any help/advice appreciated. Ta.

So the seal you are refering to is on the rubber 90 degree pipe that fits into your EGR? As theres another seal the other end whee it attaches to the inlet manifold. Dont think you woud have any probs here just because a seal has gone. Did you here any hissing from the engine? ie boost leaks

Yes it is on the 90 degree pipe and it did hiss until I managed to use some tie wraps all interlocked to help keep it tighter.

I noticed the pipe had some oil in it and am wondering now if some of it has gone into the exhaust and affected the lambda probe or worse the cat and sent the emissions high enough to cause the light to come on.

The valve still appears clean though. Could some of the oil cause it to stick? Either way the light is still on but the car doesn't drive any differently.

However I have noticed a drop in MPG as it seems to have gone from half a tank full to nothing in less than 200 miles. There is no black smoke when you rev it. And low fuel light and emissions light came on together at same time.