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What that smell is, and whether a clean will fix it

A car that smells is usually a car that needs its fabric cleaned. Sometimes it is a car that needs a mechanic, and the two are easy to confuse from the driver's seat.

This is the split, because we would rather you spent the money in the right place. Everything in the first list comes out with a deep clean. Everything in the second list is something we cannot help with, and one of them is urgent.

Smells a deep clean removes

Musty or mildewy
Damp carpet, almost always. Water gets in through a door seal, a windshield surround or a blocked aircon drain, sits under the mat where nobody looks, and grows. Lifting the carpet finds it. A shampoo and a proper dry takes the smell with it, and if the leak is still there it comes back in a fortnight.
Cigarette smoke
The hardest of the cleanable ones, because it is not in the air, it is in the headliner, the seat foam and the vents. Surface cleaning moves it for a week. Getting it out means the fabric and the ventilation system, and on a car smoked in for years some of it stays.
Spilled milk, food or vomit
Organic, and it is in the foam under the fabric rather than on it. The smell outlasts the stain by months because the part you can see is the smallest part of what went in. This is what a shampoo and an extraction are for.
Wet dog, or a car left damp
The same problem as mildew and a shorter history, so it usually comes out in one visit. Seats and carpet shampooed, then dried properly rather than left to the aircon.
Durian, fish and the rest
Strong organic smells behave like the spills above: they soak into foam and stay there long after the source has gone. Airing the car does very little. Shampooing the fabric it landed on does most of it.

Smells that mean a mechanic, not a clean

Petrol, inside the cabin
Stop reading and get it looked at. A fuel smell in the cabin is a fuel system problem, not a dirty carpet, and it is the one on this page that can hurt you. No amount of cleaning is the answer and booking a detail delays the thing that is.
Burning rubber, oil or plastic
Something is hot that should not be. It belongs to a mechanic and it usually wants seeing the same week rather than the same month.
Sweet and syrupy
Commonly coolant, which means a leak somewhere it can reach warm air. A garage question rather than a cleaning one.
Exhaust fumes inside the car
Fumes should never reach the cabin. Get it checked rather than cleaned, and drive with a window down until somebody has.

We do not do any of this work, and cleaning the car will not change it. Better said here than after somebody has paid for a detail that was never going to help.

Which of the two doors a smell goes through One block at the top stands for the smell in the car, and two columns run down from it. The left column is the smells a deep clean removes: musty or mildewy, cigarette smoke, spilled food, a wet dog or a damp car, and durian or fish. The right column is the smells that belong to a mechanic: burning rubber, something sweet and syrupy, and exhaust fumes reaching the cabin. Petrol sits at the top of the right column in its own dark block, because the page treats it as the one to act on the same day. A smell in the car, sorted Start with what it smells of A clean removes A mechanic, not us Musty or mildewyCigarette smokeSpilled foodWet dog, damp carDurian and fish Petrol, today Burning rubberSweet and syrupyExhaust fumes
The left column is a booking
All five come from something on the surfaces or in the fabric, which is what a deep clean and a proper drying are for.
The right column is not ours to take
Burning, sweet and syrupy, or fumes in the cabin all mean something is wrong with the car rather than dirty in it. Booking a clean on top of one of those delays the thing that would have fixed it.
Petrol is drawn on its own
A fuel smell in the cabin is a fuel system problem and the one here that can hurt you. Stop reading and get it looked at.
A fork, not a ranking. Within each column the entries sit in the order the page lists them and at the same weight, except the one the page itself singles out.

Stains, and how honest to be about them

Coffee and soft drinks
Comes out readily while it is fresh and gets harder once it has dried and set into the weave. Sugar is the part that lingers, because it stays tacky and collects dirt afterwards.
Grease and oil
Water will not move it. It needs a solvent-based cleaner and patience, and on light fabric a shadow can remain after the grease itself has gone.
Ink
Often permanent on fabric, sometimes liftable from leather if it is caught early. Worth an honest expectation rather than an optimistic one.
Blood
Cold water only. Heat sets it, so a hot extraction on an untreated bloodstain makes it permanent, which is the opposite of what the machine is for.

If you are not sure which of these you have, send us a text and describe it. Smell and stain are two of the few things worth describing before anybody books anything.

The work this describes

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