S4 (B8 Platform) Discussion Discussion forum for the B8 Audi S4 produced from 2009-2016

ECU failure

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Old 08-14-2015, 09:42 AM
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Default ECU failure

Hello All Has anyone ever had their ECU fail? I was driving on the highway and almost all of the warnings started to flash in succession (emergency brake failure, stabilization system failure, etc.) and the check engine light went on and the car slowed down to 5 mph and went into limp mode. It looked like the alarms were going through a self test as they were all going off. Pulled over, tried to restart, etc. car started but was still in limp mode and not driveable. Had it towed and they say I need an ECU, does that sound right? I have 65k miles on the car and it has a Stasis tune, so I guess hopefully they will reflash it. I am the original owner and take perfect care of the car. Thanks if anyone has any info.
Old 08-14-2015, 11:16 AM
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Never heard of this... Id check all the grounds first
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