20 Most Recent 2002 Audi A4 - Page 9 Questions & Answers

P1857 is usually a bad MAF (mass air flow) sensor. You can find a bit more detail here but that code is pretty consistent.

Here is the owners manual for your 2002 Audi A4 in PDF format:http://mactron.sytes.net/Audi_A4_B8_manual.pdf

It could be a few things, but my guess is a fouled spark plug. This could also be a sign of a bad ignition coil, clogged air filter or something wrong with the air sensor, or a major issue like a leaky head gasket. Start with the easy stuff like the air filter and the spark plugs. Also, try to borrow or pay someone to read the fault coded with a VAG-COM, at the very least it will tell you which cylinder is misfiring.

1 check brake fluid and pads front brakes.when they are worn out,the oil drops and contact will go on.

There are several thngs that can cause this. Your best bet is to get scan your car with a VAG-COM and see what the trouble codes are. Most auto part stores (like autozone) will scan them for free, some smog check stations will charge you a small fee to do it, or, there is always the dealership. You can also check the VAG-COM locator to see if there is someone near you that will let you use theirs. Vag Com Locator

It sounds like one of 2 things happened:1. You blew a fuse, be sure to check the fuse panel2. You knocked the power block to the climate control system loose. Check that the power block leading to the climate controll is tight into the control unit

No, Other than the frame of the car, and in some models the engine, most of the parts are different.

You may be overheating. The water pums have been an issue with these cars (Audi,VW). The impeller breaks and will no longer push water. This can be verified if you remove the thermostat and turn the impeller with your fingers (vehicle off of course). If you're able to turn it replace water pump, thermostat and timing belt.

will your passenger door open with the key and is it just one side that your windows are not working or both. if its just one side it might be your regulator motor in the door thats not working if its both it might be your central locking pump usually in the boot. however if both of them are working fine it could be that your key needs reprogrammed however i think the 1st 2 are more likely to be the problem.

-Flash the whole system with garden water from both direction.-Check radiator's fin. If it clog , blow it out with air nozzle or best use pressure washer. But careful not to damage the fin. (Do not aim or point at angle and too close)You should be good to go.Mai

that is easy to do that take a OBD2 code scanner to have a check, and it will tell you what problems on the abs system.

car systems r so complicated-dont go buyin new parts till u hookit to a tech ll that runs a data stream--hav u done regular tuneups and fuel filter change

if you have the symphony sytem you have to rplace all of the speakers in the car i have the same one. you have to do this becuase each speakers has its own mini amp powering. the only problem i cant fix now is the am/fm is still really fuzzy unlike when i had the symphony installed