Skip the auto shop - Our mechanics make house calls

Q: How many spark plugs does my car have, so I can replace them.

asked by on

It is shaking in idle. EPC light is on and the engine light blinks sometimes. I think it is the water pump and something else.
My car has an automatic transmission.

A: Hello Your Audi Quattro should be equipped ...

Hello Your Audi Quattro should be equipped with a V6, meaning it has 6 cylinders in the V formation. You should replace all 6 spark plugs when changing them. If warning lights are coming on, you will want to have the vehicle scanned for diagnostic troubleshooting codes. Anytime a warning light illuminates, it means there is a code set by the computer. These codes can be read with a scan tool at your mechanic or dealership, as well as at most local automotive parts stores. This will give you more insight into what the computer is detecting. The EPC light typically tells you that the drive-by-wire (or throttle) is malfunctioning somehow. Again, to truly know what the warning lights are trying to tell you, you will want to have the vehicle scanned. You can take any possible repairs from there.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: engine malfunction

Although the check engine light, or warning light such as "engine malfunction", only came on intermittently, and is now off, your car's PCM would still store the diagnostic trouble codes that caused the light to illuminate. Those codes can be...

Q: Audi Q5 gets short of coolant in the reservoir and when I turn on my air conditioning it seems to drain 2012 Audi A5 Quattro

Hi there, unless the "coolant loss" you continue to see is the result of an incomplete coolant bleeding procedure, there is still a coolant loss somewhere is the cooling system. Hopefully, the "temperature rise" you mention did not cause overheating...

Q: security key programs garage door, but not security gate

It is possible the gate has a rolling code, which will require an extra step of pressing the learning button on the gate transmitter while programming your HomeLink button. The Audi website has a customer service chat line where they...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.