s5blitzer

Hi Folks!

Asked in the Q7 forum but thought I run it by folks who may have experience in this. Check Engine Light (CEL) came on and stayed on. Dealer said knock sensor needs to be replaced at $$$. Tech cleared the CEL. Searched our forum, saw a few past incidents, and now need advice on a couple of questions:

1. Can I drive the car until the next CEL or will I cause damage somewhere else in the engine? Will I subsequently hear knocking coming from the engine bay and what does that really mean?

2. Is this an easy fix that an Indy repair center can perform without unknowingly breaking something else?

3. Do you find it worth the dollars spent on an extended warranty like the 2yr/24K miles on a Platinum coverage for $2,600 when I am putting in 14K miles a year?

Checked my 2010 USA Warranty book and no coverage there too -

A. Federal Emissions Control System Defect Warranty for 8 years or 80,000 miles includes major emission control components only:
- catalytic converter
- engine electronic control module
- on-board diagnostic device

B. California Emissions Warranty Supplement covers for 7 years / 70,000 miles on the knock sensor only for the S6 5.2 vehicle.

Thanks in advance!
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