Volvo B7TL deafens you with its cooling fan (VLA54 LJ53BBO)

...that title is pretty much the only description I need for this to be honest, but I'll crack on.
It's a tired old B7TL. It makes a lot of noise without moving particularly fast. There seems to be some kickdown, but good luck hearing it. We got overtaken by an LT on a hill after I stopped filming.
I uploaded this because I ran out of good footage, oops.
This bus was serving route 176 to Tottenham Court Road.
Operator: Arriva London
Fleetnumber: VLA54
Registration: LJ53BBO
Chassis: Volvo B7TL
Body: Alexander (Transbus) ALX400