my audi a3 says cd error when i put a cd what could be the course

ANSWER : Hi there. Sometimes this error is caused by something being stuck inside the CD player, such as paper or debris. In other instances, it’s an electrical malfunction inside the radio / cd player that may not be able to be repaired. In most cases like this, it’s best to have a professional mechanic complete a car radio is not working inspection.

ANSWER : Hello. We will be happy to assist you. The issue you are having is common with Ford 6-CD radio units of that generation. Usually people attempt a reset by disconnecting the negative cable from the battery for an hour or so. Which will reset the vehicle’s electrical system. However that rarely gets the radio to function normally again. The second thing people would generally try is to pull all the fuses related to the radio unit and leave them out for 30 min to an hour. You will need to check in your manual to see where the fuses are located. This last option people tries a little more involving. However these instructions have been verified to work by other Ford F-150 owner’s! Carefully take apart the trim and remove the console cover (two screws) to release the bottom of the trim piece. Once removed, disassemble the cage and remove the cd changer. Carefully separate the ribbon, cleaned the contacts with Q-tips dipped lighty in diluted Alcohol and reassemble. If that does not work you may want to consider getting a new stock radio or purchasing an aftermarket unit.

ANSWER : Hello. The low battery should not cause problem with the MAP sensor but will cause the computer to have different issues. It could cause the charging system to overcharge. You need to verify that the intake does not have any cracks or air leaks between the MAF and throttle body. If you would like to have the Check Engine Light diagnosed and addressed properly, a certified professional from YourMechanic can come to your car’s location to inspect the car and guide you through repairs.

ANSWER : Hi and thanks for contacting Your Mechanic. You had mentioned that your battery had 10.1 volts at the time and said that is what the battery usually has. A fully charged battery will have 12.6 volts, a 75% charged battery will have 12.4 volts, a 50% charged battery will have 12.2 volts, and a 25 % charged battery will have 12.0 volts. Any thing under 12.0 volts is considered a dead battery (a battery without a charge). This will cause lots of problems with the vehicle. The computer in vehicles of 2009 and newer require a minimum of 11.5 volts to make the computer function. A computer will keep its memory with a minimum of 9.6 volts, but it will not function. I recommend replacing charging the battery to a full charge and rechecking your symptoms that are occurring. Now, if the vehicle was driven around with a low charged battery, it is possible that the battery could have a bad burned cell which will cause the battery to drain back down fast. In this case, the battery should be replaced. Check the alternator for operation when the engine is running and see if there is a voltage of 13.5 to 14.7. Then turn on the head lights with the brights on and operate all of the windows at the same time. Check to see if the lights dim out. If the lights dim out, then the alternator may not be producing enough amperage and it may need to be replaced. If you need further assistance troubleshooting your vehicle, then seek out a technician, such as one from Your Mechanic, that can assist you with your low voltage battery and electrical issue within the cab.

ANSWER : Hi there. Sometimes components like motor mounts or internal transmission parts can wear out over time, as opposed to mileage on the vehicle. This is especially true for vehicles that have sat for a long time without starting or having fluids replaced frequently. Transmission fluid itself is very corrosive and can cause shifting issues if not flushed as recommended. Since your vehicle is more than 10 years old, it’s probably a good idea to have one of our professional mobile mechanics come to your location and complete a car jerks forward inspection so they can isolate the source of the problem and recommend the right repairs.

ANSWER : Hello.

The symptoms that you are experiencing can be produced by a wide variety of issues.

Common problems that cause these symptoms for this vehicle are faulty ignition coils, bad EGR piping, a bad EGR valve, or a clogged catalytic converter.

I would recommend checking those components out, and also scanning the vehicle for trouble codes, before moving on to looking at the transfer case or the rear end.

If you feel like you need assistance with this, enlist a professional mechanic who can diagnose the source of the noise and make the repairs that are necessary.

ANSWER : The fact that the CD is not ejecting is an indication that the CD player is broken. The CD player will likely have to be replaced. For more information on how you may be able to do this yourself, check out our article, "How to Remove a CD Stuck in a CD Player." If you need help, a certified technician can check your CD player to see what repair will need to be made.

ANSWER : Unfortunately, there is no way to tell without doing some more testing. The timing and small details about the noises you are hearing may make a huge difference in diagnosing the issue.

Lifters will make more of a "clicking" sound if they are not lubricated or are starting to wear down. These clicks will go away at higher speeds. If you are replacing one, replace all of them. The best way to inspect these is to open up the valves and take a look. This can be time consuming. One of the most common reasons for knock is due to improper combustion. New spark plugs can help tremendously if this is the case. The timing of the spark can also be an issue.

You may want to inspect the spark plugs and distributor as well. They might be the reason the combustion is off time. Engine knock can also be caused by fuel delivery issues, or poor fuel quality. Piston and engine knock will typically sound better as the engine warms up. A compression test can help give you insight to the condition of the pistons. This will take a special set up that plugs into your spark plug socket. If you would like to have this diagnosed, a certified technician from YourMechanic can come to your car’s location to inspect the noise and advise you on repairs.