I have a T Reg Audi A3 1.8T. 60k on the clock. The other day I was driving along the road when all of a sudden the battery light came on, then the abs light came on. My CD player kept going on and off, and the wipers lost speed and power. The airbag light came on and then the car cut out completely.
I then replaced the altenator and the car was working fine...until a day later, when the exact same thing happened. So I replaced the battery thinking that could be the problem. Another day later, driving along...and I had to get towed back home by my friend. HELP?
The problem is in the voltage regulator
IT is probably in the ECM which will require an ECM replacement
get it to an accredited auto electrician for a full check of the charge system to eliminate all faults , fires etc
SOURCE: Changing the wiper motor on a 1997 Audi A3
Here you will find the replacement of the wiper motor for Audi A4. Maybe similar for Audi A3! First you must diagnose your problem. In order to find out the cause of wipers stopping you can try follows: 1. Carefully extract the wiper arms from their axles (two pieces). In some cases you need to use an extracting tool. Heed of the windscreen !!! 2. Disassemble the plastic covers from the bottom of the windscreen. 3. With the bonnet up you can start the engine, (transmission in "N" or "P" position and parking brake on). Now you must switch on the control lever of the wipers, and go to the engine compartment. If the wiper motor runs let the wiper motor running for a few minutes and switch off. Go to the step 4. If the wiper motor do not runs you must check first the electrical feeding of the motor. It is necessary to unscrew three bolts of the mechanism and disconnect the electrical coupling (difficult assurance). If the electrical feeding is OK you must replace the motor - steps 5, 6, 7. If not you must check electrical connections, the control switch of wipers and electric cables. 4. Now you must check the two bearings of wiper mechanism with your hand. In the most cases the left bearing is out of order (is very hot). This is the most encounter fault of the wipers running at Audi. 5. For have enough space to manipulation the wiper motor together with their mechanism you must extract the plastic cover of the engine computer box, and extract also the box screws. Then you can move slowly the engine computer box, just for a few milimeters. 6. You must disconnect the electrical coupling of the motor (difficult assurance), unscrew three bolts of the mechanism and extract together with the motor. You must move them slowly between windscreen and engine computer box until the wiper motor go out together with the mechanism. This is the most difficult operation! 7. Now you can repair the bearings, replace entire wiper mechanism or replace the wiper motor. It is not very simply, but it works. Heed of the windscreen !!! Refit all in reverse order. Success!
Hi, I had the same problem. it is the imoboliser, it reads a code in your key while starting. you need to get the code in the key reprogramed. if that wont work you will need to get a new ignition barrel. Audi dealer will reprogram your key.
SOURCE: audi a3 r reg remove inner door panel drivers side
On the inside trim, you can remove screws (these screws may be covered by filler pieces or may be visible, or they may require you pry a plastic piece off that covers the screws) that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. You'll need to lift the door panel upwards in order to get it off the window ledge. Then you'll need to manipulate the panel and disconnect the door handle linkage from the door handle and disconnect the wiring for your controls.
SOURCE: audi a3 54 plate .new wiper motor fitted by dealer
The problem is in the wiper switch assembly itself.
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c
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