MMI lights blink on hard rev
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AudiWorld Member
Joined: Oct 2002
Posts: 141
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MMI lights blink on hard rev
2007 Q7 3.6
After a short drive in the cold, I decided to floor the gas pedal quickly (engine rev) to expell any water in the exhaust system. I noticed at idol, sometimes a rev would cause the MMI lights (center console) and door lights to blink off and on. This did not happen if the RPMs had not settled down to idle yet.
It also doesn't happen every day I try this.
Any ideas on what could be happening?
After a short drive in the cold, I decided to floor the gas pedal quickly (engine rev) to expell any water in the exhaust system. I noticed at idol, sometimes a rev would cause the MMI lights (center console) and door lights to blink off and on. This did not happen if the RPMs had not settled down to idle yet.
It also doesn't happen every day I try this.
Any ideas on what could be happening?
AudiWorld Super User
Joined: Jan 2021
Posts: 4,565
Likes: 1,456
From: USA - NM
You need to fully scan your Q7 for internally stored fault codes (VAGCOM type scan tool is required), and trust me, on a 2007 there will be some codes you don't know about...lol, well doesn't really matter the year, but the older they are...etc.
Typical problems/ faults on these Q7s are grounding cable internal failures (high resistance inside) leading to voltage losses, parasitic battery drains from specific grounded components, alternator and/or voltage regulator failures related to fluid leaks, and Battery charging/management system (BEM) not being reset properly during a battery swap. Scan your car to get a current baseline of what problems your car is able to tell you about directly.
Typical problems/ faults on these Q7s are grounding cable internal failures (high resistance inside) leading to voltage losses, parasitic battery drains from specific grounded components, alternator and/or voltage regulator failures related to fluid leaks, and Battery charging/management system (BEM) not being reset properly during a battery swap. Scan your car to get a current baseline of what problems your car is able to tell you about directly.
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