I have 2001, S4, 60,000miles. Just had annual service which show no fault codes.

At low speed (20-30 mph) especially during warm up I feel I am struggling to hold a steady speed. It is like a miss fire but once I put my foot down it picks up straight away.

Any suggestion what to look at first. I don't have VAG-COM or other scan tools but would welcome any suggestions.

Regards
Dermot, Oxford