1989 Audi 100 emission

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Condition	Value

expand_moreDiesel exhaust gas values

expand_moreCut-off control speed


All Audi diesel straight-5 2.4 L 3D engines	4950–5050 rpm4950–5050 rpm4950–5050 rpm
All other modifications	5050–5150 rpm5050–5150 rpm5050–5150 rpm

expand_moreMaximum K-value


All other modifications	2.5 1/m2.5 1/m2.5 1/m

expand_moreGeneral exhaust gas values

expand_moreIdling speed with automatic gearbox


Audi gasoline straight-5 2.3 L NF 134 HP	650–790 rpm650–790 rpm650–790 rpm

expand_moreAudi gasoline straight-4 1.8 L DS 89 HP

expand_moreDS engine


With regulated catalytic converter	825–975 rpm825–975 rpm825–975 rpm
Unregulated catalytic converter	700–800 rpm700–800 rpm700–800 rpm
Without catalytic converter	700–800 rpm700–800 rpm700–800 rpm


JW engine	800–900 rpm800–900 rpm800–900 rpm

expand_moreNP engine


With regulated catalytic converter	825–975 rpm825–975 rpm825–975 rpm
Without catalytic converter	700–800 rpm700–800 rpm700–800 rpm

expand_moreAudi gasoline straight-4 1.8 L 4B 89 HP


4B engine	750–950 rpm750–950 rpm750–950 rpm
PH engine	800–1000 rpm800–1000 rpm800–1000 rpm


All other modifications	750–850 rpm750–850 rpm750–850 rpm

expand_moreIdling speed with manual gearbox


Audi gasoline straight-5 2.3 L NF 134 HP	650–790 rpm650–790 rpm650–790 rpm
Audi diesel straight-5 2.4 L 3D 80 HP	800–860 rpm800–860 rpm800–860 rpm

expand_moreAudi gasoline straight-4 1.8 L DS 89 HP

expand_moreDS engine


With regulated catalytic converter	825–975 rpm825–975 rpm825–975 rpm
Unregulated catalytic converter	700–800 rpm700–800 rpm700–800 rpm
Without catalytic converter	700–800 rpm700–800 rpm700–800 rpm


JW engine	800–900 rpm800–900 rpm800–900 rpm

expand_moreNP engine


With regulated catalytic converter	825–975 rpm825–975 rpm825–975 rpm
Without catalytic converter	700–800 rpm700–800 rpm700–800 rpm

expand_moreAudi gasoline straight-4 1.8 L 4B 89 HP


4B engine	750–950 rpm750–950 rpm750–950 rpm
PH engine	800–1000 rpm800–1000 rpm800–1000 rpm


Audi diesel straight-5 2.0 L NC 99 HP at 4500 RPM, 192 N⋅m at 2200 RPM	700–800 rpm700–800 rpm700–800 rpm
All other modifications	750–850 rpm750–850 rpm750–850 rpm


Minimum engine oil temperature at VET	176°F176°F80°C

expand_morePetrol exhaust gas values

expand_moreCO content at idling speed


Audi gasoline straight-5 2.0 L RT 114 HP	0.8–1.2 %0.8–1.2 %0.8–1.2 %
Audi gasoline straight-5 2.3 L NF 134 HP	0.5 %0.5 %0.5 %
Audi gasoline straight-5 2.2 L MC 162 HP	0.5 %0.5 %0.5 %

expand_moreAudi gasoline straight-4 1.8 L 4B 89 HP


4B engine	0–0.5 %0–0.5 %0–0.5 %
PH engine	0–0.5 %0–0.5 %0–0.5 %

expand_moreAudi gasoline straight-4 1.8 L DS 89 HP

expand_moreDS engine


With regulated catalytic converter	0–0.5 %0–0.5 %0–0.5 %
Unregulated catalytic converter	0.01–1.01 %0.01–1.01 %0.01–1.01 %
Without catalytic converter	0.5–1.5 %0.5–1.5 %0.5–1.5 %


JW engine	0.5–1.5 %0.5–1.5 %0.5–1.5 %

expand_moreNP engine


With regulated catalytic converter	0–0.5 %0–0.5 %0–0.5 %
Without catalytic converter	0.5–1.5 %0.5–1.5 %0.5–1.5 %


All other modifications	0.5–1.5 %0.5–1.5 %0.5–1.5 %

expand_moreCO content at increased idling speed

expand_moreAll Audi gasoline straight-4 1.8 L 4B engines


4B engine	0–0.3 %0–0.3 %0–0.3 %
PH engine	0–0.3 %0–0.3 %0–0.3 %

expand_moreAll Audi gasoline straight-4 1.8 L DS engines

expand_moreDS engine


With regulated catalytic converter	0–0.3 %0–0.3 %0–0.3 %

expand_moreNP engine


With regulated catalytic converter	0–0.3 %0–0.3 %0–0.3 %


All other modifications	0.3 %0.3 %0.3 %

expand_moreDelta lambda

expand_moreAll Audi gasoline straight-4 1.8 L 4B engines


4B engine	0.03 λ0.03 λ0.03 λ
PH engine	0.03 λ0.03 λ0.03 λ

expand_moreAll other modifications

expand_moreDS engine


With regulated catalytic converter	0.03 λ0.03 λ0.03 λ

expand_moreNP engine


With regulated catalytic converter	0.03 λ0.03 λ0.03 λ

expand_moreIgnition time

expand_more1.8 CAT with gasoline straight-4 1.8 L 89 HP engine (1985.3–1990.11)


4B engine	-6°00'±2°00' - before TDC + after TDC
PH engine	-6°00'±2°00' - before TDC + after TDC

expand_more1.8 with gasoline straight-4 1.8 L 89 HP engine (1983.8–1989.7)

expand_moreDS engine with regulated catalytic converter


With ROZ 98	-18°00'±2°00' - before TDC + after TDC

expand_moreDS engine with unregulated catalytic converter


With ROZ 95	-13°00'±1°00' - before TDC + after TDC
With ROZ 98	-18°00'±2°00' - before TDC + after TDC

expand_moreDS engine without catalytic converter


With ROZ 95	-13°00'±1°00' - before TDC + after TDC
With ROZ 98	-18°00'±2°00' - before TDC + after TDC


JW engine	-6°00'±2°00' - before TDC + after TDC

expand_moreNP engine with regulated catalytic converter


With ROZ 98	-18°00'±2°00' - before TDC + after TDC

expand_moreNP engine without catalytic converter


With ROZ 95	-10°00'±2°00' - before TDC + after TDC
With ROZ 98	-18°00'±2°00' - before TDC + after TDC


2.0 CAT with gasoline straight-5 2.0 L 114 HP engine (1988.1–1990.11)	-18°00'±2°00' - before TDC + after TDC
2.2 CAT with gasoline straight-5 2.2 L 135 HP engine (1989.6–1990.11)	-9°00'±1°00' - before TDC + after TDC
2.2 CAT with gasoline straight-5 2.2 L 135 HP engine (1989.6–1990.11)	-9°00'±1°00' - before TDC + after TDC
2.3 E with gasoline straight-5 2.3 L 134 HP engine (1986.10–1990.11)	-15°00'±1°00' - before TDC + after TDC
All other modifications	-18°00'±1°00' - before TDC + after TDC

expand_moreIncreased idling speed

expand_moreAll Audi gasoline straight-4 1.8 L 4B engines


4B engine	2500–2800 rpm2500–2800 rpm2500–2800 rpm
PH engine	2500–2800 rpm2500–2800 rpm2500–2800 rpm

expand_moreAll Audi gasoline straight-4 1.8 L DS engines

expand_moreDS engine


With regulated catalytic converter	2500–2800 rpm2500–2800 rpm2500–2800 rpm

expand_moreNP engine


With regulated catalytic converter	2500–2800 rpm2500–2800 rpm2500–2800 rpm


All other modifications	2500–2800 rpm2500–2800 rpm2500–2800 rpm

expand_moreLambda value

expand_moreAll Audi gasoline straight-4 1.8 L 4B engines


4B engine	0.97–1.03 λ0.97–1.03 λ0.97–1.03 λ
PH engine	0.97–1.03 λ0.97–1.03 λ0.97–1.03 λ

expand_moreAll Audi gasoline straight-4 1.8 L DS engines

expand_moreDS engine


With regulated catalytic converter	0.97–1.03 λ0.97–1.03 λ0.97–1.03 λ

expand_moreNP engine


With regulated catalytic converter	0.97–1.03 λ0.97–1.03 λ0.97–1.03 λ


All other modifications	0.97–1.03 λ0.97–1.03 λ0.97–1.03 λ

expand_moreMaximum HC content at idling


2.2 CAT with gasoline straight-5 2.2 L 135 HP engine (1989.6–1990.11)	300 ppm300 ppm300 ppm
2.2 CAT with gasoline straight-5 2.2 L 135 HP engine (1989.6–1990.11)	300 ppm300 ppm300 ppm
2.2 Turbo with gasoline straight-5 2.2 L 162 HP engine (1986.8–1990.11)	100 ppm100 ppm100 ppm
2.3 E with gasoline straight-5 2.3 L 134 HP engine (1986.10–1990.11)	100 ppm100 ppm100 ppm
All other modifications	350 ppm350 ppm350 ppm

expand_morePetrol conditioning speed

expand_moreAll Audi gasoline straight-4 1.8 L 4B engines


4B engine	2500 rpm2500 rpm2500 rpm
PH engine	2500 rpm2500 rpm2500 rpm

expand_moreAll other modifications

expand_moreDS engine


With regulated catalytic converter	2500 rpm2500 rpm2500 rpm

expand_moreNP engine


With regulated catalytic converter	2500 rpm2500 rpm2500 rpm

expand_morePetrol conditioning time

expand_moreAll Audi gasoline straight-4 1.8 L 4B engines


4B engine	120 s120 s120 s
PH engine	60 s60 s60 s

expand_moreAll other modifications

expand_moreDS engine


With regulated catalytic converter	120 s120 s120 s

expand_moreNP engine


With regulated catalytic converter	120 s120 s120 s

expand_moreSpeed for disturbance variable

expand_moreAll Audi gasoline straight-4 1.8 L 4B engines


4B engine	650–1050 rpm650–1050 rpm650–1050 rpm
PH engine	700–1100 rpm700–1100 rpm700–1100 rpm

expand_moreAll other modifications

expand_moreDS engine


With regulated catalytic converter	725–1025 rpm725–1025 rpm725–1025 rpm

expand_moreNP engine


With regulated catalytic converter	725–1075 rpm725–1075 rpm725–1075 rpm

expand_moreVacuum hose of centrifugal force adjustment connected/disconnected

expand_moreAll Audi gasoline straight-4 1.8 L DS engines

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 1989 Audi 100 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.

Maintenance Items

Service Intervals

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 100 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 1989 Audi 100 you're not only saving money, but also also improving your technical skills and learning something new.

1989 Audi 100 C3 facelift Emission

Table of Contents

Conquer your fears and never give up!

Audi 100 C3 facelift model years

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