Emmision Control Light S4

[S Hussain]

Hi,

Was wondering if anyone can help.

I have a 2006 Audi S4. The Emission Control light came on and the car is now slightly jumping/jerking, even when non idle.

Any ideas what it could be and how it could be resolved?

S

[iwaters]

Emission control light is what used to be called the Check Engine Light or Malfunction Indicator Light.

It means the ECU has detected something and logged a fault code. You need to get the car scanned for faults.

[kite]

I would suspect a failed coil pack.
Scan for faults first.

[S Hussain]

Emission control light is what used to be called the Check Engine Light or Malfunction Indicator Light.

It means the ECU has detected something and logged a fault code. You need to get the car scanned for faults.

Thanks.

Worrying part is the car jumps and jerks slightly, but the engine runs fine. I just booked it into a local garage for a scan,lets see what comes up.

Also, any chance you can enlighten as to what the potentail problem may be.

Thanks

[S Hussain]

I would suspect a failed coil pack.
Scan for faults first.

Thank you

[iwaters]

As Kite says sounds likely to be a coil pack. The description you gave sounds like an enigne missfire. Could be other things though.

[S Hussain]

Apologies to sound completely car ignorant. But is that a big issue or a lot of work required and expensive?

[iwaters]

Assuming it is a coil pack, it is very little work involved in changing it. Not sure how much the part costs but wont be massive amounts of cash.

[S Hussain]

The final Cost came to 250 pounds not sure how the priced that form an independent garage.

Ask audi, their charge is £35 for the ignition coil, £140 labour and VAT. but they all so need to doa diagnostic to it will be a further £100 .