STRUGGLING MCLAREN: McLaren drivers Jenson Button (left) and Fernando Alonso arrive in Singapore. The last thing the struggling team needs is electromagnetic interference during the race. Image: AP / Joseph Nair
Singapore - Team engineers are nervous each time their cars approach Singapore's Anderson Bridge, according to a report in the German newspaper Bild.
It is said that a strange magnetic or electrical interference, probably related to subway lines that run nearby and underground, is threatening to grind the sophisticated, hybrid F1 cars of 2015 to a halt.
McLaren technical boss Tim Goss said: "The sensors are showing some odd numbers. If the cars get this electrical pulse during a gear change, it can disturb the workings between the throttle, clutch and gearbox."
As it happened: 2015 Singapore GP - Second practice
Bild said Mercedes, the world champion team, has built in some shielding against the interference.
But "We are still a little worried," technical chief Paddy Lowe admitted.