in your garage to make future searches easy.

Condition Value
expand_moreCooling fan is switched off at temperature
First stage 183.2195.8°F
Second stage 195.8208.4°F
expand_moreCooling fan is switched on at temperature
First stage 197.6206.6°F
Second stage 210.2221°F
expand_moreRadiator cap opening pressure (Cooling system maximum pressure)
All Audi diesel straight-4 1.9 L AGR engines 1.21.5 bar
All Audi diesel straight-4 1.9 L AHF engines 1.21.5 bar
All Audi diesel straight-4 1.9 L ALH engines 1.21.5 bar
All Audi diesel straight-4 1.9 L ASV engines 1.21.5 bar
All other modifications 1.41.6 bar
expand_moreThermostat opens at temperature
expand_moreAll Audi gasoline straight-4 1.6 L AEH engines
APF engine 176239°F
Electronic regulation
Otherwise 188.6215.6°F
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 1998 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 1998 Audi A3 you're not only saving money, but also also improving your technical skills and learning something new.

Audi A3 First generation model years

Units:
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