Nightlifephantom

Ok. 2005 Audi A6 4.2 Quattro S-Line

Today, I was driving to a local store and I notice my car was acting really strange. I pulled out of my driveway and the car felt like it was struggling to move. The engine got louder as in like a deep loud rumble as I stepped on the gas and felt like it had a loss of power. I know the valve cover has a slight oil leak that was discovered about 2 weeks ago (which I'm scheduled to get the work done on Tuesday). Also, it felt like the car wasn't shifting the way it used to yesterday.

Now... if my engine oil was low and causing this issue wouldn't the "low oil" light pop up on the dash? Also wouldn't something pop up under "Engine" in VCDS? (States no fault codes were found). I notice that there is no way for me to check the oil level as well. The option to check oil level on the MMI display is grayed out and nothing about oil level shows up on the dash. I'm starting to think the oil level sensor is not working or it could be something else. While going through VCDS and under "Auto Trans" I noticed there is no serial number for my transmission... is this normal? Anyone's 2 cents is appreciated.

raj99

Go to the front of your car, open the hood and remove the dipstick...that how you check the oil level on your car. The C6 does not have an electronic means of displaying the level of your oil. FWIW, if the oil light does come on you will be severely low on oil. Although the car is advanced, it's not THAT advanced...you're going to have to get up and actually do stuff from other that the driver seat

Also, you transmission type is stamped on it and can easily be seen from under the car.

As for your issue with regards to "loss of power", it could be that your tranny is going or perhaps something worse. Upload a FULL TEXT log of your VCDS and not the little picture captures you've been doing.

Loss of power isn't usually a low oil issue, but if you already know you have such an issue the car could have other issues which are just manifesting themselves now. Could be spark plugs, coil packs, fuel injectors, etc...

SchwarzS6

Also, if you have a bad valve cover gasket the oil could be getting into the spark plug hole and causing a misfire. If that were happening it would show up in a VCDS scan.

I do not know about the 2005 but I know that my 2008 has an oil level sensor which will come on when you are 1 quart low. I do not think that VCDS tells you the level, as raj99 says, that is what the dipstick is for. Note that it is very unlikely that you would be down a quart due to a leaking valve cover gasket. If that much had leaked there would be a large oil slick where you park your car.

Nightlifephantom

Where is the dipstick located? The only dipstick I see is a orange handle dipstick on the front right side of the motor that I believe says ATF...

There has been pretty good oil spots whereever I park.

I also notice that my coolant level is a little below the minimum line. What color coolant do you guys use and what brand? My current coolant color is blue/green.

I will try and upload my VCDS log when I get a chance.

KevinGary

The orange dipstick is for the oil. The transmission is sealed and there is no dipstick for the tranny.

raj99

OP, I'd strongly recommend you read your vehicle owners manual to familiarize yourself with the basics of the vehicle.

Nightlifephantom

Is it? That's what I thought but I saw ATF on it and thought it was some how related to the tranny. Thanks for the clarification, I now feel really dumb.

Nightlifephantom

You're right. I actually haven't touch the manual yet.

raj99

Your coolant is supposed to be G-012-A8F-A4, which is definitely NOT blue/green. It's looks like the previous owner didn't care what they put in as coolant and just put in whatever was handy. Your coolant should be G12+, which is PINK in color.

raj99

Spend the time and read it...you'll be better informed about the basics.