2004 Audi A4 Quattro emission

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	4500–5500 rpm4500–5500 rpm4500–5500 rpm
Otherwise	4650–4950 rpm4650–4950 rpm4650–4950 rpm


All Audi diesel straight-4 1.9 L AVF engines	4800–5200 rpm4800–5200 rpm4800–5200 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	4500–5500 rpm4500–5500 rpm4500–5500 rpm
Otherwise	4650–4950 rpm4650–4950 rpm4650–4950 rpm


All Audi diesel straight-4 1.9 L AVF engines	4800–5200 rpm4800–5200 rpm4800–5200 rpm
from 60° C engine oil temperature


Maximum K-value	2 1/m2 1/m2 1/m
Measuring mode	B
Measuring sensor	1
Measuring time	0.5 s0.5 s0.5 s
Stoppage time	1 s1 s1 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	680–820 rpm680–820 rpm680–820 rpm
All Audi gasoline V6 3.0 L AVK engines	680–820 rpm680–820 rpm680–820 rpm
All Audi gasoline V6 3.0 L BBJ engines	680–800 rpm680–800 rpm680–800 rpm
All Audi gasoline straight-4 1.8 L BEX engines	680–900 rpm680–900 rpm680–900 rpm
All Audi gasoline straight-4 1.8 L BFB engines	650–850 rpm650–850 rpm650–850 rpm

expand_moreAll other modifications


AKE engine	740–840 rpm740–840 rpm740–840 rpm
BAU engine	650–880 rpm650–880 rpm650–880 rpm
BDH engine	650–860 rpm650–860 rpm650–860 rpm

expand_moreIdling speed with manual gearbox


All Audi gasoline V6 3.0 L ASN engines	680–820 rpm680–820 rpm680–820 rpm
All Audi diesel straight-4 1.9 L AVF engines	800–950 rpm800–950 rpm800–950 rpm
All Audi gasoline V6 3.0 L AVK engines	680–820 rpm680–820 rpm680–820 rpm
All Audi gasoline V6 3.0 L BBJ engines	680–800 rpm680–800 rpm680–800 rpm
All Audi gasoline straight-4 1.8 L BEX engines	680–900 rpm680–900 rpm680–900 rpm
All Audi gasoline straight-4 1.8 L BFB engines	650–850 rpm650–850 rpm650–850 rpm

expand_moreAll other modifications


AKE engine	740–840 rpm740–840 rpm740–840 rpm
BAU engine	650–880 rpm650–880 rpm650–880 rpm
BDH engine	650–860 rpm650–860 rpm650–860 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 %

expand_moreCO content at increased idling speed


All Audi gasoline V6 3.0 L ASN engines	0–0.3 %0–0.3 %0–0.3 %
All Audi gasoline V6 3.0 L AVK engines	0–0.3 %0–0.3 %0–0.3 %
All other modifications	0–0.2 %0–0.2 %0–0.2 %


Increased idling speed	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
Maximum HC content at idling	100 ppm100 ppm100 ppm
Petrol conditioning speed	2500–3000 rpm2500–3000 rpm2500–3000 rpm
Petrol conditioning time	120 s120 s120 s

expand_moreTest speed for lambda sensor signal


All Audi gasoline V6 3.0 L BBJ engines	680–800 rpm680–800 rpm680–800 rpm
All Audi gasoline straight-4 1.8 L BEX engines	680–900 rpm680–900 rpm680–900 rpm
All Audi gasoline straight-4 1.8 L BFB engines	650–850 rpm650–850 rpm650–850 rpm
All other modifications	680–820 rpm680–820 rpm680–820 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.

B7

Type 8EC

2004 Audi A4 Quattro B6 Emission

Table of Contents

Conquer your fears and never give up!

2004 Audi A4 Quattro generations

B7

Audi A4 Quattro B6 model years

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