I own an Astra Convertible, not the latest model, just the one before with soft rooftop. It's about 5 years old now I think, or thereabouts :P
Since it's full leather interiors, even the steering wheel, including airbag cover and horn are leather. Just before 3 years passed, I noticed that air was accumulating underneath the horn and created a sort of "bubble horn". The leather on top of the horn inflated hehe, then one fine day the leather cracked ;(
Went to our local agent and after sending photos to manufacturer, he changed the centre piece that included airbag, horn, etc in leather.
After almost another 2 years, same problem again! Does this mean that all Astra leather steering wheels that fit my model are faulty? I am no way ready to pay for something that seems to be faulty in origin. In theory, they gave me a faulty replacement in the first place!!!
Anyone else had same problem?