Some tariffs include an assistance coverage (Schutzbrief) in their tariffs. It’s a roadside assistance in case your car breaks down. It usually pays for towing, a hotel and travel back to your home. It is very similar to an automotive club association membership.
Usually, the assistance cover is a lot cheaper than the club membership. However, the club membership usually includes family members (and is not tied to a specific car) and offers additional services such as rental car discounts etc.