Hello everyone, I am a new member and hope someone can help on here. I am impressed by the quick replies and the general range of skills,knowledge & motor experiences.

I have a fine old Audi A4 Avant, TDI SE ( Reg 2000),only 90k miles!..... and this warning light keeps bugging me. Its yellow and hope not serious.

I attach it here. I have checked warning light images on the web and I am unable to find this one!

Hope to hear from someone soon.

Many thanks!​