Currently reading: Porsche 718 air-vent fix aims to stop cigarette ingestion
Cigarettes can be drawn into the engine of Cayman and Boxster when discarded out of the window

Porsche is offering to replace the side air-intake grilles on the 718 Boxster and 718 Cayman to prevent cigarettes or cigars from entering and damaging the engine. 

The issue has long affected Boxster and Cayman models, going back into previous generations. After “continuous quality analysis,” Porsche found that discarded cigarettes can be caught by the model’s airstream and drawn into the side air intakes.

“Fanning from the airflow can cause the cigarettes, cigars or their embers to further ignite there, affecting plastic elements or the like, and damaging the vehicle,” Porsche said in a statement to customers.

“This can ultimately lead to a smouldering fire in the engine compartment. Typical warning signs and indications are smoke development in the rear area, loss of engine power, warning messages lighting up in the central display or burning smells." 

The issue will be counteracted with tighter-mesh protective grilles that customers can have fitted free of charge in a process that will take around an hour to complete. 

Porsche didn't say how many cars had suffered significant damage from the issue. There's also no indication that other Porsche models are affected, but a recall was issued for 718 models produced between 2017 and 2019. The problem can be traced back to as early as 2005 online. 

“The high quality of our vehicles over their entire life is one of the core values of the Porsche brand and contributes significantly to the fascination of our sports cars,” Porsche told Autocar. “To ensure their long-term enjoyment, we carry out continuous quality checks.

“Porsche has already installed or retrofitted special protective grilles in the side air intakes of the corresponding models to prevent cigarettes or embers from entering the engine compartment." 

Drivers of cars with the previous style of vent have been asked to contact their local Porsche dealer to have the new ones fitted.

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Gerhard 28 January 2022

One would have hoped that owners of such cars would have the brains to think this could happen, before littering the roads! Perhaps it could be a way of cleaning up the roads of discarded butts, by adding a 'butt filter' to the intake grilles on Porsches... 

si73 28 January 2022
As long as it didn't suck up a cigarette but thrown from a car in an adjacent lane, a filthy habit and should be banned in cars anyway.
Not that it could be policed I suppose.
I assume it must have happened enough times for Porsche to have reacted though.
martin_66 28 January 2022

It could be policed a lot easier than looking for people using mobile phones - just look for an open window with smoke billowing out of it - bit of a clue there!

Peter Cavellini 27 January 2022

Oh please!, by rational there's bound to many drivers and passengers chucking the Cigarette butts out of the Cars, is it any worse than the ones who toss there half eaten food out the window?

martin_66 28 January 2022
Peter Cavellini wrote:

Oh please!, by rational there's bound to many drivers and passengers chucking the Cigarette butts out of the Cars, is it any worse than the ones who toss there half eaten food out the window?

While I think anybody who throws anything out of a car window is utter scum, the answer to your question, Peter, is YES, it is worse than throwing food out of the window.  1.  Cigarette butts take up to TEN years to degrade.  Food does not, and will probably be eaten by local wildlife.  2.  Tossed cigarettes start fires (see this article for proof of that), food does not.