The Pole's debut at the World Rally Championship's top level proved shortlived as he had accidents on both Friday and Saturday mornings.
Although the damage from his first roll on leg two was relatively minor, allowing him to restart from 36th place, he had a bigger accident just two stages into his return.
Kubica put his Saturday crash down to a pace note error. Co-driver Maciek Baran's sudden departure prior to Rally GB meant Kubica was working alongside Michele Ferrara for the first time this weekend.
"Like yesterday, I had adopted a sensible pace, but that wasn't enough to make up for a misunderstanding with one of the pace notes on a very fast corner," said Kubica.
"The rear of the car slid wide and off the road into a ditch, and we ended up rolling twice."
Citroen has now lost two of its three works entries to big crashes this weekend, as Mikko Hirvonen was another to have an accident on Friday.
The team's remaining representative Dani Sordo goes into Sunday in seventh place, having taken a five-minute pre-rally penalty for a chassis change.
- Sports & Recreation
- World Rally Championship
- Maciek Baran