Burning smell from the engine bay

Identify the smell: oil on the manifold is sharp and acrid, coolant is sweet, and burnt clutch or brakes is pungent.

Stop driving

Likely causes, most common first

Oil leaking onto the exhaust

Valve cover or turbo lines are the usual suspects.

Coolant leak

Sweet smell and white vapour.

Radiator replacement: $235–$1,140 in the US

Dragging brake

Hot wheel and acrid smell after a drive.

Brake pad replacement: $110–$455 in the US

Slipping clutch

Strong smell after hills or heavy traffic.

Clutch replacement: $580–$2,435 in the US

Checks to run first

  1. 1.Stop and look for smoke
  2. 2.Feel each wheel for excessive heat
  3. 3.Check oil and coolant levels once cool

Frequently asked questions

burning smell coming from car engine?
Identify the smell: oil on the manifold is sharp and acrid, coolant is sweet, and burnt clutch or brakes is pungent.
Is it safe to drive with this?
No. This symptom can leave you stranded or cause much more expensive damage — get it looked at before driving further.
How much does it cost to fix?
The most likely repair is radiator replacement, which runs $235–$1,140 in the US including labour, or $90–$480 in parts if you fit it yourself.

Engine & drivetrain parts

Filters, belts, pumps, plugs, clutches and gaskets

Find parts that fit

Year, make, model, trim — then only parts that fit your car.

Other symptoms