PuroMexicano

Guys, looking for some help and input here.

About a week ago I got an engine check light on and the Start/Stop stopped working.

I took the Q3 to the dealership and they told me it was a gas return valve.

They took care of it under warranty and in under 30 minutes.

All was good, but, then it happened...

At red lights, idle is around 850 rpm (normal), start/stop off, foot on brake pedal.

As I take my foot off of the brake pedal to start accelerating, idle drops about 150-200 rpms and goes back up; car vibrates a bit, like it wants to stall.

Same when coming to a stop, idle comes back from accelerating, goes to 850 and drops.

I took it again and the scan showed NOTHING wrong. They even changed the valve again under warranty thinking it could be a faulty valve.

Besides those symptoms, I feel the car a bit slow.

WHat do you guys think it could be?

I'm taking the Q3 tomorrow for a thorough check, buy maybe I can give them some input if someone has had similar problems with their Q3 or other car for that matter.

Thanks!!

PuroMexicano

no one?

zkeach

How many miles does the car have? My first thought is that your ignition coil packs might be on their way out. But that'd be sort of unusual with a low mileage motor unless maybe you live in a super cold climate.

PuroMexicano

thanks,


not a cold climate (northern mexico), 25,000 miles

the Q3 just spent 2 days at the dealership, they told me no leaky vacuum hoses, they've even swapped the throttle body, try to install software update, unplugged battery to reset everything, all to no avail.