I’ve just been doing some tidying up under the hood and noticed lots of pine needles under the brake servo.
I removed all the “dressing panels” to gain access, you wouldn’t believe the amount I removed, half filled the Dyson vacuum cleaner. There were also quite a lot around the battery.
The previous owner obviously parked under pine trees.
I was worried that with the heat under the hood they might ignite
Might be worth checking yours

Regards

John