expand_more1.6 FSI with gasoline straight-4 1.6 L 114 HP at 6000 RPM, 155 N⋅m at 4000 RPM engine (2003.8–2007.9)
BAG engine
600–800 rpm600–800 rpm600–800 rpm
BLF engine
600–800 rpm600–800 rpm600–800 rpm
BLP engine
640–840 rpm640–840 rpm640–840 rpm
expand_more1.6 with gasoline straight-4 1.6 L 101 HP at 5600 RPM, 148 N⋅m at 3800 RPM engine (2003.5–2012.8)
BGU engine
600–800 rpm600–800 rpm600–800 rpm
BSE engine
650–850 rpm650–850 rpm650–850 rpm
1.9 TDI with diesel straight-4 1.9 L 103 HP at 4000 RPM, 250 N⋅m at 1900 RPM engine (2003.5–2010.5)
760–960 rpm760–960 rpm760–960 rpm
1.9 TDI with diesel straight-4 1.9 L 103 HP at 4000 RPM, 250 N⋅m at 1900 RPM engine (2003.5–2010.5)
760–960 rpm760–960 rpm760–960 rpm
1.9 TDI with diesel straight-4 1.9 L 103 HP engine (2003.5–2010.5)
760–960 rpm760–960 rpm760–960 rpm
expand_more2.0 TDI 16V with diesel straight-4 2.0 L 138 HP at 4000 RPM, 320 N⋅m at 1750 RPM engine (2003.5–2012.8)
BKD engine
760–960 rpm760–960 rpm760–960 rpm
CBAB engine
730–930 rpm730–930 rpm730–930 rpm
expand_more2.0 TDI with diesel straight-4 2.0 L 134 HP at 4000 RPM, 320 N⋅m at 1750 RPM engine (2003.5–2012.8)
AZV engine
760–960 rpm760–960 rpm760–960 rpm
CBAA engine
730–930 rpm730–930 rpm730–930 rpm
expand_moreAll other modifications
AXW engine
600–880 rpm600–880 rpm600–880 rpm
All other modifications
640–840 rpm640–840 rpm640–840 rpm
Minimum engine oil temperature at VET
176°F176°F80°C
expand_morePetrol exhaust gas values
CO content at idling speed
0–0.5 %0–0.5 %0–0.5 %
CO content at increased idling speed
0–0.2 %0–0.2 %0–0.2 %
Delta lambda
0.03 λ0.03 λ0.03 λ
expand_moreIncreased idling speed
expand_more1.6 FSI with gasoline straight-4 1.6 L 114 HP at 6000 RPM, 155 N⋅m at 4000 RPM engine (2003.8–2007.9)
BAG engine
3800–4500 rpm3800–4500 rpm3800–4500 rpm
BLF engine
3800–4500 rpm3800–4500 rpm3800–4500 rpm
BLP engine
3000–3500 rpm3000–3500 rpm3000–3500 rpm
expand_more2.0 FSI with gasoline straight-4 2.0 L 148 HP at 6000 RPM, 200 N⋅m at 3500 RPM engine (2003.5–2008.6)
expand_moreAXW and BLR engines
BVY engine
3800–4500 rpm3800–4500 rpm3800–4500 rpm
All other modifications
3000–3500 rpm3000–3500 rpm3000–3500 rpm
All other modifications
2500–3000 rpm2500–3000 rpm2500–3000 rpm
Lambda sensor design
wideband sensor
Lambda value
0.97–1.03 λ0.97–1.03 λ0.97–1.03 λ
expand_morePetrol conditioning speed
expand_more1.6 FSI with gasoline straight-4 1.6 L 114 HP at 6000 RPM, 155 N⋅m at 4000 RPM engine (2003.8–2007.9)
BAG engine
3800–4500 rpm3800–4500 rpm3800–4500 rpm
BLF engine
3800–4500 rpm3800–4500 rpm3800–4500 rpm
BLP engine
3000–3500 rpm3000–3500 rpm3000–3500 rpm
expand_more2.0 FSI with gasoline straight-4 2.0 L 148 HP at 6000 RPM, 200 N⋅m at 3500 RPM engine (2003.5–2008.6)
expand_moreAXW and BLR engines
BVY engine
3800–4500 rpm3800–4500 rpm3800–4500 rpm
All other modifications
3000–3500 rpm3000–3500 rpm3000–3500 rpm
All other modifications
2500–3000 rpm2500–3000 rpm2500–3000 rpm
Petrol conditioning time
120 s120 s120 s
expand_moreTest speed for lambda sensor signal
expand_more1.6 FSI with gasoline straight-4 1.6 L 114 HP at 6000 RPM, 155 N⋅m at 4000 RPM engine (2003.8–2007.9)
BAG engine
600–800 rpm600–800 rpm600–800 rpm
BLF engine
600–800 rpm600–800 rpm600–800 rpm
BLP engine
640–840 rpm640–840 rpm640–840 rpm
expand_more1.6 with gasoline straight-4 1.6 L 101 HP at 5600 RPM, 148 N⋅m at 3800 RPM engine (2003.5–2012.8)
BGU engine
600–800 rpm600–800 rpm600–800 rpm
BSE engine
650–850 rpm650–850 rpm650–850 rpm
expand_moreAll other modifications
AXW engine
600–880 rpm600–880 rpm600–880 rpm
All other modifications
640–840 rpm640–840 rpm640–840 rpm
To reduce environment impact and pass government inspections keep emission parameters at the level prescribed by Audi.
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.
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. Emission may vary in different generations. Be sure that you are looking at the rigt modification.