Go Back  AudiForums.com > Audi Models > Audi A3
2006 Audi A3 Overheating Problem >

2006 Audi A3 Overheating Problem

Audi A3 The Audi A3 offers cutting edge engineering, performance, and luxury in one affordable package.

2006 Audi A3 Overheating Problem

Old 03-26-2017, 12:13 AM
1st Gear
Thread Starter
Join Date: Mar 2017
Posts: 1
Default 2006 Audi A3 Overheating Problem

Hey guys!
So I have a 2006 A3, and I noticed that my car has been overheatting. When I get out of my car i can feel the heat. About 2 weeks ago the radiators fans have started to turn on after I turn my car off so I decided to look into it. Then recently my dashboard gave a warning that I needed coolant and the gauge needle went from 1/2 to HOT. I felt a couple hoses around the car and they were very hot and some were cold(not warm.) So when I got home did some research before I messed with anything under the hood. I read through forums, and saw that it might be the thermostat or water pump, or head gasket. I was convinced that it was the thermostat so I recently replaced it and did a coolant change, but it seems to still heat up quickly and the fans are still turning on! Is there something that I'm missing, or something? Any help is appreciated, thank you!
Old 03-27-2017, 10:57 AM
2nd Gear
Join Date: Jul 2009
Location: Colorado
Posts: 664

Whenever I work on cooling related issues or maintenance there are 3 things I replace regardless of cause:

1. Waterpump
2. Thermostat
3. Cooling sensor(s)

The reason for all 3 is simple each one has something to do with the operation of the other part. So if only 1 of the 3 fails it will cause the other 2 to act up as well and deliver underwhelming performance. Usually if you do the work yourself adding just the other 2 parts that could potentially be the cause won't break the bank.
Most of the time it will be the thermostat like you mentioned however bad waterpump will have low or no flow causing the same symptoms but no error code (except overheating).

Another important step I've come across once with my Audi's:
Flush the cooling system. Not just dump it but flush it. I've had something gunk up inside my radiator once that I was able to flush out forcefully, so something to consider or check while you are at it - make sure there is good flow.
Related Topics
Thread Starter
Last Post
Audi A8
01-03-2013 12:49 PM
B5 Models
11-30-2012 02:38 PM
B5 Models
08-14-2011 10:10 PM
Audi A4
04-05-2005 07:04 PM

Thread Tools
Search this Thread
Quick Reply: 2006 Audi A3 Overheating Problem

Featured Sponsors

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.