Cleaning a Family Car Properly (Including Under the Child Seats)

A family car accumulates in places that are genuinely hard to reach, and the worst of it is under things that are bolted down.

Take the seats out

Child seats have to come out to clean under them, and there is no way around it. Underneath a car seat that has been in place for a year you will typically find crushed food, spilled liquid that soaked into the upholstery, and staining that nobody knew about.

Photograph the installation before removing anything so it goes back correctly, and check the installation afterwards — a car seat that is not correctly secured is a serious matter, and it is worth being deliberate about.

The child seat itself

Check the manufacturer's instructions before cleaning one. Many covers are removable and washable; the harness webbing generally must not be machine washed or treated with detergents or solvents, because that can weaken the webbing. Wipe it with water and mild soap only.

What we do on a family car

• Full removal of floor mats and thorough vacuuming including under seats and in every rail.
• Extraction on carpet and upholstery — the step that removes what soaked in rather than what is on top.
• Enzymatic treatment on organic staining, which is what breaks down milk, food and biological spills rather than covering them.
• Every crevice: seat rails, console gaps, door pockets, cup holders.
• Cabin air filter check, because in a family car it is frequently the source of a smell.

The realistic expectation

Some staining is permanent, particularly on light fabric where a liquid has been left to set. We will tell you honestly what will come out and what will lift but not disappear, rather than promising and then explaining afterwards.

Between details

The most useful habit is dealing with spills the day they happen. A fresh spill blotted and treated comes out completely; the same spill in a week may not.