in your garage to make future searches easy.

Condition Value
Cooling fan is switched off at temperature 201.2°F
Cooling fan is switched on at temperature 179.6°F
Radiator cap opening pressure (Cooling system maximum pressure) 1.41.6 bar
expand_moreThermostat opens at temperature
All Audi gasoline straight-4 2.0 L AXW engines 221°F
Electronic regulation
All Audi gasoline straight-4 2.0 L BLR engines 221°F
Electronic regulation
All Audi gasoline straight-4 2.0 L BLX engines 221°F
Electronic regulation
All Audi gasoline straight-4 2.0 L BLY engines 221°F
Electronic regulation
All Audi gasoline straight-4 2.0 L BMB engines 221°F
Electronic regulation
All Audi gasoline straight-4 2.0 L BVY engines 221°F
Electronic regulation
All Audi gasoline straight-4 2.0 L BVZ engines 221°F
Electronic regulation
All other modifications 188.6215.6°F

Overheating is really dangerous for Audi A3 engines. Regularly check coolant level in the overflow reservoir. If the coolant level drops below minimum level inspect the cooling system for any signs of leakages and replace worn or damaged hoses. Use correct thermostat for your car.

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2003 Audi A3 user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Before doing any DIY service please check your insurance policy and Audi warranty policy for your region. In some regions DIY service may invalidate your warranty.

Conquer your fears and never give up!

DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Audi A3 service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.

Doing basic service for your 2003 Audi A3 you're not only saving money, but also also improving your technical skills and learning something new.

2003 Audi A3 generations

In 2003 Audi offered 2 generations of the A3. Cooling system specifications may vary in different generations. Be sure that you are looking at the rigt modification.

Audi A3 Second generation model years

Units:
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