in your garage to make future searches easy.

Condition Value
expand_moreAuxiliary drive belt size
expand_moreAll Audi diesel straight-4 2.0 L AZV engines
expand_moreAZV engine
With air-conditioning 21.18 x 1050 mm
Without air-conditioning system 21.34 x 950 mm
expand_moreCBAA engine
With air-conditioning 21.18 x 1070 mm
expand_moreAll Audi gasoline straight-4 1.6 L BAG engines
With air-conditioning 21.16 x 1736 mm
Without air-conditioning system 21.16 x 1088 mm
expand_moreAll Audi diesel straight-4 1.9 L BKC engines
With air-conditioning 21.18 x 1050 mm
Without air-conditioning system 21.34 x 950 mm
expand_moreAll Audi diesel straight-4 2.0 L BKD engines
expand_moreBKD engine
With air-conditioning 21.18 x 1050 mm
Without air-conditioning system 21.34 x 900 mm
expand_moreCBAB engine
With air-conditioning 21.18 x 1070 mm
expand_moreAll other modifications
With air-conditioning 21.34 x 1042 mm
Without air-conditioning system 21.34 x 900 mm

Check drive belts regularly on your A3 and replace them if you found any signs of wear or any tears or damages.

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. Drive belts 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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