Mercedes admits it is battling some "issues" with its engine preparations for the new Formula 1 season, but is confident it can have fixes in place for the first race.
The German manufacturer is chasing an eighth consecutive F1 title double this season, having been undefeated during the turbo-hybrid era.
But, as it ramps up work for the start of the 2021 campaign, its engine chief Hywel Thomas has revealed that it is facing some early year challenges.
"We have got some issues with the power units," he said in a video released by Mercedes.
"We know we have issues but we have plenty of plans in place to fix all of those issues.
"I'm sure it will all be ready for the first race."
Mercedes is no stranger to facing dramas in the pre-season build-up, and 12 months ago its then engine chief Andy Cowell admitted that the team was facing troubles in its preparations for the new campaign.
While the team endured some reliability dramas in testing, it was eventually able to get on top of the matter by the time the delayed season started in July.
https://www.autosport.com/f1/news/15...e-preparations