Smoke from the exhaust
A little vapour that clears on a cold start can be condensation. If smoke appears suddenly, is heavy or comes with a loss of power that makes driving unsafe, pull over as soon as it is safe and switch off. Avoid revving the engine to see if it happens again.
What colour can tell us
- Blue or grey-blue: oil may be burning. Tell us if the engine has also been using more oil.
- Dark: the cause can involve combustion or air supply, depending on the engine and when it happens.
- Persistent white: the context matters. Mention any coolant loss or recent overheating.
Why timing and location matter
Tell us whether it was on a cold start, once warm or under acceleration. Note how long it lasted and where it came from. Smoke under the bonnet calls for a different assessment from smoke at the tailpipe.
What helps us choose the next check
Share what you already noticed and any warnings. We can use that information to plan engine diagnostics.
Start by telling us about the fault
Open WhatsApp, review the suggested message and decide whether to send it.