Multiple Cylinder Misfires on Audi A4

[Mark_Reso]

Hey Guys,

I've recently had the Emission Control System light on my dashboard turn on briefly in my Audi A4 Cabriolet (2004, V6).*
It turns on and then off again.

I've read the fault codes but am not that knowledgable so was hoping you guys could give me an idea what I'd have to expect if I were to bring it down to a mechanic. A vague idea whether it's a minor issue or potentially expensive would be great. And whether there is any DIY I could do on it?

When I delete the codes some of them come back usually the 7 below.

The car drives a bit jerky sometimes but overall works relatively alright. I've stopped driving it for now until I find out more.

Looking forward to any help/advice I can get. Thanks guys.

Please find the fault codes listed below with a link to Ross-tech:


16684/P0300/000768 - Random/Multiple Cylinder Misfire Detected
http://wiki.ross-tech.com/wiki/index...4/P0300/000768

16685/P0301/000769 - Cylinder 1 Misfire Detected
http://wiki.ross-tech.com/wiki/index...5/P0301/000769

16686/P0302/000770 - Cylinder 2 Misfire Detected
http://wiki.ross-tech.com/wiki/index...6/P0302/000770

16687/P0303/000771 - Cylinder 3 Misfire Detected
http://wiki.ross-tech.com/wiki/index...7/P0303/000771

16688/P0304/000772 - Cylinder 4 Misfire Detected
http://wiki.ross-tech.com/wiki/index...8/P0304/000772

16689/P0305/000773 - Cylinder 5 Misfire Detected
http://wiki.ross-tech.com/wiki/index...9/P0305/000773

16690/P0306/000774 - Cylinder 6 Misfire Detected
http://wiki.ross-tech.com/wiki/index...0/P0306/000774

Recently when trying to check it I've also had the following code show up instead of the Cylinder 4 misfire:

16825/P0441/001089 - EVAP Emission Control Sys: Incorrect Flow
http://wiki.ross-tech.com/wiki/index...5/P0441/001089

Last but not least occasionally have gotten the following fault codes as well:

18149 - I believe this one means "Clutch Pressure Adaptation: Limit Reached"

18181 I believe this one means "Hydraulic Pressure Sensor 1 too large"

If you require any other information please let me know.
Thanks again!

-Mark

[niall campbell]

change all the spark plugs firstly

then look at coil pack(s) depending on what you have fitted

[Mark_Reso]

Thanks for your reply Niall, I will take that into account when seeing my mechanic in the countryside next week Thursday. Will be busy with work until then. I will not be driving it until then.