jessica_dunkel1
Siena radar sensor failure
Summary of the thread
A 2013 Fiat Siena diesel with 171,480 km is experiencing a radar sensor failure, leading to error messages and system malfunctions. Despite no visible damage, the issue may be due to dirt accumulation on the sensor. Cleaning the sensor resolved the problem, eliminating the error and avoiding costly repairs.
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4 comment(s)
jessica_dunkel1 (community.author)
Thanks for the quick reply! That's a good point, I hadn't really considered it being that simple. By 'dirty', do you just mean giving it a wipe with a cloth, or is there a specific cleaning procedure I should follow? I don't want to damage anything further!
larawagner23
In my case, a simple wipe-down wasn't enough, unfortunately. The sensor was quite grimy, and the error persisted. I would recommend taking your Fiat to a workshop. They will be able to diagnose the problem accurately and recalibrate the radar if necessary.
jessica_dunkel1 (community.author)
You were spot on! I took the Siena to a local garage, and it turned out the radar sensor was just caked in dirt. They cleaned it thoroughly, and the error's gone! Cost me 45€ for the cleaning. Thanks so much for the suggestion; you saved me a potential fortune!
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FIAT
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SIENA
larawagner23
I had a similar issue with my Volvo a while back. The error messages and system failures sound very familiar. Have you checked if the sensor is simply dirty? Road grime and salt can accumulate and interfere with the radar's functionality.