The Van's SB corresponding to the Rotax SB contains no information on replacement. And the original Rotax SB said that an authorized service center can replace them. But it also said that "This exchange program and cost sharing is valid until August 1, 2019. Up to this date limited reimbursement of costs can be applied for."
That's clear as mud. The expiration date was almost three years before the SB was even issued?
What's the proper procedure here?