I drive a 2013 Audi A3 1.4 TFSI and lately I’ve noticed a few strange things. After turning off the engine, there’s sometimes a faint fuel smell near the rear of the car. Also, the engine occasionally idles a bit rough, especially when I come to a stop at traffic lights. No major power loss, but something definitely feels off.
There’s no EPC light, but I did get a Check Engine light once - it went away by itself after a day. I haven’t done any diagnostics yet, just wondering if anyone’s experienced similar symptoms?
Car smells like fuel after driving - normal or not?
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- Last Post 2 weeks ago
vomelo4028
posted this
2 weeks ago
mapesoy509
posted this
2 weeks ago
Hi, I had the same problem on my 2014 A3 1.8 TSI. This fuel smell after turning off the engine usually indicates a problem with the EVAP system, most likely the N80 purge valve. When this starts to fail, it can leak fuel vapor and cause rough idle. I would recommend scanning the codes with InCarDoc to confirm. It's not a big emergency, but don't ignore it for too long - it can affect emissions and fuel economy.
tegonab273
posted this
2 weeks ago
I had a weird fuel smell on my A3 too, and the idle was kind of shaky. Turned out to be a bad purge valve on mine. It wasn’t super obvious at first, but once I replaced it, the smell and rough idle went away.
Maybe try cleaning the valve or just get it tested at a shop.
diyofa7432
posted this
2 weeks ago
Sounds like a classic EVAP purge valve problem. The P1434 code is common for this, indicating an electrical fault or short in the purge valve circuit. Sometimes wiring or connectors get corroded or loose.
The rough idle can be caused by the valve sticking open and letting extra air into the intake. Definitely get it checked and replaced if needed. Driving isn’t immediately dangerous but fix it soon.
