VW AG (VW, Audi, Seat, Porsche and etc) standard repair procedure - Every repair involving fuel leak, fire incident, unexpected acceleration or deceleration, transmission/engine replacement, mechatronic unit replacement and etc, VTA (VW technical assistance) is needed before proceeding repair. QTM and FOM will also involved for additional investigation.
In this case, it's about the manufacturer standing behind their products, and find the cause for the incident. Insurance is the least that VW AG will worry. Volkswagen and Audi had some bad reputation in the old days, ie. Audi 5000 (ask 路顺 for reason), VW MK3 which is why they are trying to change this image by building positive relation with their customer.
Volkswagen released a campaign in Feb, 2011- Washer reservoir TAB potentially might rubbing against fuel line causing fuel leak which may result fire (the campaign applies to most Rabbit, Bettles, some MK5 Jetta and Golf. I believe Audi had similar campaign.