The yellow triangle is a warning that a sensor has detected a problem. You might check that all of the fluids are full. especially the oil. Going around corners shift the fluids from one position to another and then the sensor thinks that the fluid is low therefor giving a false reading.
SOURCE: warning light on audi a4
This is the indicator for ESP (stability control). If you look on your dash, you'll see a button with, you guessed it, ESP written on it. This allows you to turn your stability control on and off. If your light is on constantly, try pushing the ESP button. If it flashes on and off (ie during hard driving) this simply means it is working.
Testimonial: "thanks, "
SOURCE: AUDI A4 2003 1.8T TRANSMISSION CONTROL UNIT
we too have the Audi A4 2004. the diagnostics say there is no problem but the official distributors machinist says that it might be a problem with the TCU. the cost of getting it replaced is very high and they do not asure that it will solve the problem. if not we might need to get the transmition case replaced or fixed. i too think that Audi should fix this. people buy this brand for it's quality, but after 5 years the car has such major problems- it's not right
SOURCE: A yellow circular arrow warning light has come on. What is it?
A yellow light containing an exclamation mark surrounded by a triangle, all surrounded by a curved arrow is the Automatic Stability Control warning light (ASC + Traction Control). If the light just flashes momentarily whilst driving it means that you have driven in a way that has triggered the ASC system to activate and protect you. If the light is on all the time it can mean that you have switched the system off. The switch for the ASC is one of the row of chrome switches just under the airconditioning controls. If you operate the switch and the light stays on, you have a faulty ASC system. OK to drive the car but be aware that the stability control will not save you from a skid. Have it looked at if you can't get the light to stay off.
Normal operation: Light on when you turn on the ignition, should go out after engine starts. Light flashes if you are driving hard on a slippery surface and the system is acting to stabilise the car.
Faulty: Light on all the time measn either you have turned the system off or there is a fault.
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OKAY, I WILL DEFENETELY CHECK ALL OF MY FLUIDS, AND SEE WHAT HAPPENS. THANKS
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