Q: Warning lights coming on and car bogging down.

asked by on January 13, 2016

The EPC and Service Now light is on. The car has been bogging down when I give it gas.

Service Light is on Inspection $94.99 - $114.99 Get a Quote

Your 2009 CC has a number of issues that come up often. When the Service Engine light comes on this will also turn on the EPC light as the computer cannot control the electronic power control (EPC) system. A computer scan with a scan tool is the first place to start to see what codes are in the computer. Most of the time the problems that come up that also affect engine power is an intake manifold runner problem or a turbo problem. The first thing a mechanic would do is scan the computer as the codes will give clues as to where to start the diagnosis. You should enlist the help of a certified mechanic, like one from YourMechanic, that has the tools and experience to do this.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

2003 Honda Civic not moving in reverse
Unfortunately there could be several reasons as to why your Honda Civic is unable to engage reverse gear when you shift the transmission into reverse. Knowing if your Civic is equipped with a manual or automatic transmission can greatly assist...
brake light issues
Hello. If the high mount light is working, I would trace the circuit from the other brake light bulbs (https://www.yourmechanic.com/services/brake-light-bulb-replacement) to identify an open in the circuit or an excessive voltage drop. If the voltage drop along the circuit exceeds...
Speed sensors on transmission
Without additional detail as to what the issue is that you are experiencing, this may be tough to diagnose without physically inspecting the vehicle or taking it for a test drive. As you may know the speed sensors on your...
Can a 12V tire inflator burn my car electrical system
Yes, it can be dangerous to plug high-current loads into the cigarette lighter! And, yes, this circuit should be fuse protected so that wiring or other components on the power path are not damaged. Not all manufacturers fuse-protect the cigarette...
Oil level is low.
Your engine may use up about a liter of oil for every 2000 km you drive so you should add oil until you see that the oil comes up to the top full mark. Running the engine low on oil...
Removing the car battery in a 2012 S63 other than the cross bar on top of the battery what other bolt holds the battery in ??
If you look straight down at the base of the battery, there will be a little "foot" that clamps the base of the battery to the car. The battery is slid up under a notch on one side and the...
How can I tell if my tensioners are keeping pressure on my serpentine belt?
Hi there. Many serpentine belt tensioners have a built in gauge that can help you determine if it is in need of replacement. Here is a link to a picture of a similar style tensioner and what to look at...
Motor & Transmission Mounts 2006 Mazda3 2.3 liter cost?
Hi there. It really depends on where you live and what mounts specifically need to be replaced that will determine the cost. In order to offer you a price quote to have one of our mobile mechanics complete the engine...
2008 Ford Escape emergency flashers sometimes come on by themselves
Hello, thank you for writing in. Considering that most of the time you can utilize the switch to turn off the hazards, the switch is likely to blame. If the switch is what is allowing the power to go to...

Related articles

A Buyer’s Guide to the 2012 Volkswagen Touareg TDI
The The 2012 Volkswagen Touareg TDI brings diesel to the family in a big way. This crossover SUV delivers seamless performance in a vehicle that obviously designed for the open road rather than any trails or other types of off-road...
Symptoms of a Bad or Failing Air Charge Temperature Sensor
Common signs include a lack of power when accelerating, trouble when starting in cold weather, and a decrease in fuel efficiency.
Ten Sports Cars That Double as Good Daily Drivers
The best daily driver is a car that's reliable, usable, and still fun to drive. Popular daily sports cars include the BMW M3, Subaru WRX, and VW GTI.