Top 20 2005 Audi A3 Questions & Answers

This is typical problem when AC Compressor starts to lock up and first makes a noise. then on overheating locks up and will stall the engine until something breaks either in the clutch or belt and it is free again to start engine. Thoroughly check you AC with/without belt and see if it rotates freely.

I’m happy to assist further over the phone at

2005 Audi A3 | 107 views | 0 helpful votes

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

2005 Audi A3 | 162 views | 0 helpful votes

The easiest way to find an electrical draw is to remove the negative battery cable and put a test light in between the battery post and the cable. If a draw is present the light will light bright, a dim light is normal. You can now remove fuses until you find the circuit that has a short. You should start at the alternator, it is very common that a diode will short out inside of the alternator allowing it to still charge, but also have a direct short.

2005 Audi A3 | 80 views | 0 helpful votes

You probably hit the nail on the head with the motor. When you engage it, go and feel if the base of the wiper is warming up (the center hub, not the tip). If it is, the motor is probably shot. See if you can clean away any debris and check for any loose connections.

2005 Audi A3 | 336 views | 0 helpful votes

Waterpump has plastic impeller prone to breaking also check thermostat

2005 Audi A3 | 132 views | 0 helpful votes

I don't think that light would come on for bearing make sure brake fluid is topped up first

2005 Audi A3 | 82 views | 1 helpful votes

Could be this fancy oil ,like the newer 0/30 multigrades ,try using a straight 40 monograde oil ,you have a pressure problem with the internals and it could be anything from worn oil pump to worn mains ,another trick is too add some winns or STP oil thickener and sell it quick or this will cost a arm and leg to repair ,maybe another engine from a accident damaged car in the scrapyard .

2005 Audi A3 | 143 views | 0 helpful votes

cluster could be bad the pixels or the solder you can replace it if its that bad.

2005 Audi A3 | 80 views | 0 helpful votes

Most often in engine bay fuse box on driver side fender well area and you will see several square plug in relays along with regular fuses, so easy to find.

2005 Audi A3 | 96 views | 0 helpful votes

change glass

I’m happy to assist further over the phone at

2005 Audi A3 | 153 views | 0 helpful votes

Pics on the box are worthless. Grab the owners manual, quick search will get you a PDF.

2005 Audi A3 | 111 views | 0 helpful votes


2005 Audi A3 | 250 views | 0 helpful votes

Possibly the gear inside the moyor is stripped.. OR The drive shaft at the motor is stripped or disconnected. .. stripped drive shaft most possible.

2005 Audi A3 | 41 views | 0 helpful votes

Hi all happy new year 2016 i have exactly same problem with Audi a3 8p 2.0l fsi 2005 fuel pump running all the Time ( with and without ignition)non stop . For stop it i need to remove fuel pump fuse.
I think this part is defective

I want to have helps before buy it

Thanks in advance.

2005 Audi A3 | 317 views | 0 helpful votes

It might be the head gasket

2005 Audi A3 | 118 views | 0 helpful votes

sounds like you have a grounding issue possibly a main grounding location. inconsistant grounding of the vehicles control module will cause erratic behaviours. check under the hood for ground locations containing multiple grounds at 1 bolt location.if different "experts" have attempted repair and failed chances are they are all looking in the wrong place.dash{interior of vehicle}..actual cause.{egine compartment or under side of locations.}good luck and safe motoring:>

2005 Audi A3 | 220 views | 1 helpful votes

Code P0234 Check N75 boost control solenoid and all vacuum hoses to and from N75.

If performance returns after brief ignition key cycling, Off /On.....check for vacuum to turbo dump valve canister.

If performance is always low, check turbo vanes for sticking or 'snow screen' in snorkel to air filer is not restricted..

2005 Audi A3 | 456 views | 0 helpful votes

Buy a manual version ,autos always go wrong and this is no exception the gearbox is worn out they do not last for ever ,or trade it in quick

2005 Audi A3 | 132 views | 0 helpful votes

Volkswagen/Audi Group VAG has an odd and long standing relationship with a zero maintenance transmission fluid that is based mineral oil. The procedure to check is even stranger, car should be warm and running (for an automatic) on the bottom of the car there will be a combination drain plug with a screw in the middle. Removing that screw should result in about 1 cc fluid loss because here is a small pipe that goes up to the design fill level. To fill there is another plug up higher where you add fluid until it comes out that drain. Not fun.

2005 Audi A3 | 127 views | 1 helpful votes

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