Check Engine Light

**zlang04s4** · 05-10-2008 07:38 PM

started the car up like normal today everything seemed fine....drove across the street to target shopped for an hour....came back out started the car up and i noticed a slight shaking/rumbling from the engine didnt think anything of it then sure enough i see my yellow check engine light......the digital readout says OK in green so im wondering what can be wrong....i plan on trading it in soon so i would like to get that cel outta there....any input at all would be greatly appreciated....btw i have an 04 s4 52,000 miles im in so cal so the climate is definetly moderate.

**AudiOso** · 05-10-2008 07:42 PM

Coil pack going out.

**zlang04s4** · 05-10-2008 07:51 PM

thats not good......how much will that hurt the pocket book.????????????...my warranty ran out a few thousand miles ago :-(

**AudiOso** · 05-10-2008 07:55 PM

Coil packs aren't that expensive. ECS has the Audi OEM and the Bremi part for $29.95 each. Now the trick is to find which one is bad. The car needs to be VAG'd.

**zlang04s4** · 05-10-2008 08:02 PM

Anyone in oc up for letting use their VAG ??? And once i find out what pack it is how hard would the install be ??

**zlang04s4** · 05-11-2008 02:20 AM

now whenever i accelerate i experience a sort of slipping or mis-firing of some sort...any input????

**zlang04s4** · 05-11-2008 02:20 AM

my next question is should i be alright driving for another day unti monday when i can bring it in

**jester7677** · 05-11-2008 06:01 AM

Don't keep driving it. A coil pack is one of those red things on the top of the engine.

Part should be $30.
1/2 hour plus for labor depending on which one it is.
Very simple to DIY.

**zlang04s4** · 05-11-2008 06:44 AM

how do i change out cp's ????? what tools will i need ? Plus i need a vag reading before i know what cp it is

**zlang04s4** · 05-11-2008 07:15 AM

and what will happen if i do drive until monday morning ??

**b spot** · 05-12-2008 02:18 AM

You need a flat head screw driver, if any tools at all.

My advice, make sure the engine is cool so you don't burn the crap out of your hands like I did (those suckers stay hot for a long time!).

Disconnect the harness from your coil pack, pull it out of the engine, insert new one, done.