Hi Magpie,
Be careful, I asked Hymer in Germany about using a non authorised dealer for the servicing and got the reply below, it maybe worth asking them if you can just have the damp inspection to qualify for any damp ingress. The email below suggests that they require all the servicing to be done by a Hymer dealer for them to honour any warranty claims.
Email:
persoenliche_nachricht: Hi Hymer, please can you advise, I live in the UK and I have a 2015 Eriba Familia, do I have to use an official Hymer dealer for all the servicing to keep the mechanical/damp warranty valid or can I use any Caravan engineer/company? Thanks
Dear Mr.......,
We refer to your request dated 18.11.2016.
You definitely have to go to an authorized Hymer/Eriba dealer for your warranty inspections.
We hope we were able to help you.
Mit freundlichen Grüßen / Kind regards / Cordiali Saluti
Hymer GmbH & Co. KG
Rocco Lauretta
Technischer Kundendienst
Holzstr. 19
88339 Bad Waldsee