Workers at car maker Rolls-Royce will be striking for the first time in living memory on Friday in the long-running dispute over pensions at BMW.
Members of the Unite union based at the Rolls-Royce plant near Chichester will walk out for 24 hours following previous stoppages at BMW factories including the Mini plant at Cowley, near Oxford.
Talks aimed at breaking the deadlock over BMW Group's pension changes adjourned without agreement on Thursday.
The union says plans to close the final salary pension scheme could lead to some workers losing over £160,000 in retirement income.
P icket lines will be mounted outside the main gate at the Rolls-Royce plant on Friday.
Unite national officer Fred Hanna said: "BMW bosses need to realise that workers who make the world-renowned Rolls-Royce motor cars, along with their colleagues elsewhere in BMW UK will not roll over.
"Rolls-Royce workers make some of the most luxurious cars for some of the richest people on the planet. Yet BMW wants to repay their hard work and craftsmanship, which has generated record orders and delivered record profits, by pinching their pensions.
"With industrial action clearly having an impact on production, BMW bosses need to reflect on today's talks and demonstrate a serious willingness to address our members' concerns.
"There is a window of a week, before further action, in which BMW can work with us to hammer out a deal that is good for the workforce and the business.
"A failure to do so will result in the further planned industrial action going ahead with the continued disruption it brings to car production."