Queueing on the high road and the filter you breathe through
Streatham High Road and Streatham Hill are red routes with a 20mph limit, frequent crossings and constant buses, so a car based near the Common or over towards Norwood Grove spends a lot of its life stationary in a queue with the fan running. The cabin filter takes the particulates, the pollen off the Common and the soot from the bus in front, and it is one of the few service items whose condition you can actually feel in daily use.
When it saturates, the blower slows on every setting, the windscreen takes much longer to clear on a cold morning and the car develops a musty smell with the heater on. We fit the type the car was built with, plain particle or activated carbon, rather than whatever will physically go in the housing. The air filter is renewed at the same time and matched to the airbox, because one that does not seal lets unfiltered air straight past it.
Beyond the filters, the annual service is where the slow effects of this traffic get checked. All four wheels come off for pad and disc measurements that go on your report, the brake fluid is tested for moisture, the coolant is tested for strength and the battery and charging output are checked, which matters on cars whose stop-start systems cycle endlessly between Streatham Hill and the Common. A fault code scan rounds it off.
The low traffic neighbourhood filters on roads like Palace Road and Mount Nod Road mean local trips often go the long way, so if a 20-minute run to Hackbridge is unwelcome, collection and delivery from Streatham can be arranged. Everything beyond the service is quoted in writing first and repairs carry our 3-month workmanship guarantee. Most cars are finished the same day they come in, filters and all.

