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A4

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Related questions

Question
Rough idle and RPM fluctuation
This may be a sign of a faulty MAP sensor. The Manifold Absolute Pressure (MAP) sensor senses engine load and generates a signal that is proportional to the amount of vacuum in the intake manifold. The engine computer then uses...
Question
Possible issue with transmission
It sounds like your transmission may be having trouble building up enough oil pressure to engage the clutches while it is idling. The oil transmission oil pump runs off of the input shaft and runs at engine speed. When things...
Question
discarcing the batery when is off
You should have the battery inspected. If the battery is not holding a charge, that is if it fails a load test, it has to be replaced. Other causes of the difficulty you are reporting are a malfunctioning charging system,...
Question
Why do I get heavy fumes smell while the car idles?
Hi there. Check the ignition system to see if the spark plugs have wet fuel on them. If they have fuel on them, then check to see if the spark plug wires are good and have any burn spots. Check...
Question
Getting fumes and smell while idling and driving
Hello there, many common faults will cause your 2003 Audi A4 to have fumes and a smell when idling. Generally any EVAP or gasoline vapor leaks will trigger a check engine light with an EVAP leak code. In some cases...
Question
Transmission Issue
Hi there: The symptoms you're describing are similar in many ways to restriction of hydraulic fluid inside the transmission. Sometimes flushing the transmission fluid can help remove those obstructions; but in most cases, it delays the inevitable task of removing...
Question
Car overheats aftr 10 mins of idle, but heater blows cold air. Trapped air noises? 2003 Audi A4
Hello - you have at least one cooling system problem that could be causing all of the symptoms, or more than one problem. The cooling system was not properly bled, and still big air pockets. This will cause overheating for...
Question
What causes the fuel pump to keep burning out?
The first thing to come to mind is the quality of your replacement pumps. There are many manufacturers in the business of making inferior pumps and selling them for a tempting price. These are often what you get at the...
Question
Speed sensor passive
Hello. If the speed sensor is passive, as in it is not responding then there is likely some sort of issue with the speed sensor or circuit. Common causes are issues with the speed sensor, circuit, or even the computer....
Question
Oil consumption is very high ,after oil service if we drive for 500 km indicates oil level low top up 2011 Audi A4 Turbo
Hello - oil consumption is, for some reason, higher on this specific engine than on other 4 cylinder engines, turbocharged or not. Typical oil consumption is approximately 1 quart per 1500 miles. If you have blue exhaust smoke on an...
Question
getting p2181 even after changing the CTS 2007 Audi A4
Hi there - the problem is a failing thermostat. On this Audi, engine management has a "warm-up" profile it expects the thermostat to manage while the engine comes up to temperature. The fact that yours is not reaching correct operating...
Question
Makes a clicking sound
A clicking or ticking sound can be coming from lots of components. Lack of engine oil, low oil level, or poor oil pressure can cause the engine to make a loud clicking or ticking sound. If it were the engine...
Question
Need help in reading wiring information
Hi - www.hackaday.com has a number of articles on remote start apps and implementations. I would start there. Their readers are like-minded techno fans such as yourself. Happy Hacking!
Question
Timing change
Hey there. The sound does not increase with speed or while turning the vehicle left or right? If the vehicle only makes the sounds while moving, you may even have a faulty wheel bearing assembly. A worn wheel bearing will...
Question
Temperature gauge isn't working properly
This may suggest a faulty cooling fan relay. As you may know the helps to maintain the proper coolant temperature by turning the fans on and off at specific temperature thresholds. When this switch is not working properly, this can...
Question
The car cuts off mostly towards a stop sign. When I start an EPC warning light, it shows on the dashboard.
At such a high mileage, it could really be just about anything. But the first thing I would look for is air leaks. There are a number of rubber hoses and boots under the hood that have to remain air...
Question
Engine temperature
Hi there. In most cases, the engine's operating temperature will decrease during normal city driving as this is usually when the thermostat opens and allows the radiator to circulate coolant through the motor and to be cooled by the fans....
Question
EPC Light is on - 2011 Audi A4
Hi there. While driving the vehicle and having the engine light begin to flash, then there is a major problem that is currently existing. When the EPC light comes on, there is an issue with the throttle pedal, throttle body,...
Question
Engine stalls when I come to a stop
Hello - There are several possible reasons for this form of stalling. A dirty or malfunctioning idle air control valve, an air leak in the intake (more complicated with all the turbocharger and intercooler hoses on your model), a dirty...
Question
ABS brakes lock up
Your traction control and anti-lock braking system work together to control the car in adverse conditions such as snowing conditions. The traction control system monitors the steering stability of the vehicle and engages when loss of traction has been detected....

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