Lando Norris handed Belgian Grand Prix grid penalty as McLaren introduces reliability upgrades

Lando Norris will serve a 10-place grid penalty at Sunday's Belgian Grand Prix after McLaren elected to install engine components that exceed Formula 1's seasonal allocation.

The reigning world champion's MCL40 will receive a fourth battery-related power electronics unit, one more than the three permitted under the regulations. 

Although the change carries an automatic penalty, McLaren believes the long-term benefits outweigh the short-term setback.

The team has also introduced the latest Mercedes power unit specification, which includes reliability improvements developed after several failures earlier this season.

McLaren chose Spa-Francorchamps for the penalty because overtaking opportunities are generally better than at most circuits, allowing Norris a stronger chance of recovering positions during the race.

Reliability takes priority before major upgrades

The Belgian Grand Prix is the final race before McLaren rolls out a significant aerodynamic development programme, with further upgrades planned across the Hungarian and Dutch Grands Prix.

After slipping behind Mercedes, Ferrari and Red Bull in recent rounds, the Woking outfit hopes the upcoming packages will return the team to the front of the field.

By taking the penalty this weekend, McLaren avoids compromising its chances in Hungary, where overtaking is notoriously difficult and the upgraded car is expected to be more competitive.

The component being replaced is the power electronics unit, which controls the battery system. Norris has already endured several reliability setbacks this season, including a retirement in China after a failure and further issues with replacement units in Japan and Monaco.

McLaren explained that while its current system has performed reliably in recent races, Mercedes has since introduced upgraded versions designed to improve durability.

The team intends to use this latest unit for the remainder of the championship in an effort to avoid additional penalties later in the season.

New McLaren rear wing arrives as rivals battle reliability

Alongside the engine updates, McLaren has introduced a revised rear wing specifically designed for Spa's high-speed layout.

Unlike the innovative rotating rear wing concepts pioneered by Ferrari and Red Bull this season, McLaren's latest design uses a more conventional drag reduction system.

Red Bull has abandoned its own aggressive concept this weekend after Max Verstappen suffered high-speed crashes in Austria and Britain that were linked to the wing's operation.

Mercedes continues to battle reliability concerns of its own. Championship leader Kimi Antonelli has taken a fresh engine for Spa after problems with the unit used at Silverstone. 

Because the change falls within his allocated engine pool, the Italian avoids any grid penalty while Mercedes investigates whether the previous engine can be repaired and returned to service later this season.