If the Civic is a 1.4 petro, 1.6 petrol or 1.7 diesel it will need a timing belt, tensioners and waterpump. If it's a 2.0 litre Type S that's chain cam so it doesn't. Could be lots of expensive problems with the Audi and it, too, needs a timing belt, tensioners and waterpump if they haven[t been replaced in the last 50k miles.