Mercedes has postponed the engine update it planned to introduce for its cars and customers at this weekend’s Canadian Grand Prix.
The reigning Constructors’ Champions confirmed earlier in the week that its ‘PU2’ spec would debut to coincide with Formula 1’s visit to the power-hungry Circuit Gilles Villeneuve.
Customer teams Williams and Force India were also set to receive the upgraded engine.
However, on Wednesday Mercedes announced that the introduction of PU2 has been delayed until the following round of the season at the returning French Grand Prix.
“Although we had hoped to introduce PU2 this weekend, a quality issue means that this has now been delayed by one race,” a Mercedes spokesperson confirmed.
“So all Mercedes-powered cars will be running PU1 for this weekend, too, before receiving new units in France.”
Mercedes heads to the Canadian Grand Prix atop the Constructors’ Championship, having taken victory at the event across the past three years.
Renault and Honda are set to bring updated engine components to this weekend's round of the championship, with the outcome of the upgrades set to be a factor in Red Bull's decision-making exercise for 2019.
