Why does my car smell of petrol?

Treat as urgent. Causes include a leaking fuel line, perished filler hose, faulty EVAP system, or a leaking injector seal. Fuel leaks risk fire.

Here's a quick, honest answer from a working UK mechanic — what causes it, what it costs to fix, and what to do next.

Can I drive it? — Only the shortest distance to a garage, with windows open. Better to call a recovery service if the smell is strong.

Could it be a faulty fuel cap? — Yes — a worn seal lets vapour escape and triggers EVAP codes. £15–£40 to replace.

Bob's Mechanical Repairs — independent family-run garage in Birnam, Dunkeld, Perthshire. Call 01350 727 276 or email bob@bobsmechanicalrepairs.co.uk.