Mercedes confirms cooling issue, no change for Hamilton

Mercedes has confirmed the issue that forced it to change Nico Rosberg's engine ahead of the Italian Grand Prix was a leak in the cooling system, but it isn't expected to affect pole sitter Lewis Hamilton.

Rosberg was forced to change back to a former specification engine ahead of qualifying after problems with the newly upgraded power unit were detected during FP3.

Related Articles

Proceeding to qualify in fourth place - his lowest start since China 2014 -, Rosberg went on to blame the deficit on the fact he is using an engine which will be entering its sixth race today.

Overnight investigations have subsequently revealed a leak in the cooling system contaminated the engine, which Mercedes admits is a problem with the Power Unit, rather than the engine itself.

Despite this, Hamilton - whose car cannot be checked for a similar issue due to parc ferme rules - isn't expected to take a precautionary engine change of his own ahead of the Monza race. If he does he would be forced to start from the pit-lane.

As it stands, Mercedes is still determining whether the problem is terminal for the engine or whether it can be used for future events.