in your garage to make future searches easy.

Condition Value
expand_moreDiesel exhaust gas values
expand_moreCut-off control speed
expand_moreAll Audi diesel V6 2.5 L AKE engines
AKE engine 45005500 rpm
Otherwise 46504950 rpm
All Audi diesel straight-4 1.9 L AVF engines 48005200 rpm
expand_moreDiesel conditioning gas injections
1.9 TDI quattro with diesel straight-4 1.9 L 129 HP engine (2001.11–2004.12) 10
from 60° C engine oil temperature
expand_moreDiesel conditioning speed
expand_moreAll Audi diesel V6 2.5 L AKE engines
AKE engine 45005500 rpm
Otherwise 46504950 rpm
All Audi diesel straight-4 1.9 L AVF engines 48005200 rpm
from 60° C engine oil temperature
Maximum K-value 2 1/m
Measuring mode B
Measuring sensor 1
Measuring time 0.5 s
Stoppage time 1 s
expand_moreGeneral exhaust gas values
Diagnostic socket location The diagnostic socket is at the
lower edge of the dashboard on the
driver's side.
expand_moreIdling speed with automatic gearbox
All Audi gasoline V6 3.0 L ASN engines 680820 rpm
All Audi gasoline V6 3.0 L AVK engines 680820 rpm
All Audi gasoline V6 3.0 L BBJ engines 680800 rpm
All Audi gasoline straight-4 1.8 L BEX engines 680900 rpm
All Audi gasoline straight-4 1.8 L BFB engines 650850 rpm
expand_moreAll other modifications
AKE engine 740840 rpm
BAU engine 650880 rpm
BDH engine 650860 rpm
expand_moreIdling speed with manual gearbox
All Audi gasoline V6 3.0 L ASN engines 680820 rpm
All Audi diesel straight-4 1.9 L AVF engines 800950 rpm
All Audi gasoline V6 3.0 L AVK engines 680820 rpm
All Audi gasoline V6 3.0 L BBJ engines 680800 rpm
All Audi gasoline straight-4 1.8 L BEX engines 680900 rpm
All Audi gasoline straight-4 1.8 L BFB engines 650850 rpm
expand_moreAll other modifications
AKE engine 740840 rpm
BAU engine 650880 rpm
BDH engine 650860 rpm
Minimum engine oil temperature at VET 176°F
expand_morePetrol exhaust gas values
CO content at idling speed 00.5 %
expand_moreCO content at increased idling speed
All Audi gasoline V6 3.0 L ASN engines 00.3 %
All Audi gasoline V6 3.0 L AVK engines 00.3 %
All other modifications 00.2 %
Increased idling speed 25003000 rpm
Lambda sensor design wideband sensor
Lambda value 0.971.03 λ
Maximum HC content at idling 100 ppm
Petrol conditioning speed 25003000 rpm
Petrol conditioning time 120 s
expand_moreTest speed for lambda sensor signal
All Audi gasoline V6 3.0 L BBJ engines 680800 rpm
All Audi gasoline straight-4 1.8 L BEX engines 680900 rpm
All Audi gasoline straight-4 1.8 L BFB engines 650850 rpm
All other modifications 680820 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 2004 Audi A4 Quattro 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 A4 Quattro 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 2004 Audi A4 Quattro you're not only saving money, but also also improving your technical skills and learning something new.

2004 Audi A4 Quattro generations

In 2004 Audi offered 2 generations of the A4 Quattro. Emission may vary in different generations. Be sure that you are looking at the rigt modification.

Audi A4 Quattro B6 model years

Units:
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