Which costs are to be expected for the exchange of a cap on a Montblanc Meisterstück 145 via the Montblanc service, and is a repair basically sensible?

Repairs on newer Montblanc writing instruments, including the cap exchange, can be carried out exclusively via Montblanc itself (possibly mediated by an authorised dealer). In the specific case of the 145, a price of 85 euros for the cap exchange was named by phone, which compared to the acquisition of a complete replacement pen is a sensible option. Generally, however, spare-part prices are often very high, and with some repairs, e.g. small damages on gilded rings, three-digit to high quotes are possible. Before a repair, the offered price should therefore always be compared with the costs of used writing instruments.