1988 Audi 100 Avant Quattro emission

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Condition	Value

expand_moreGeneral exhaust gas values

expand_moreIdling speed with automatic gearbox

expand_moreAll Audi gasoline straight-4 1.8 L 4B engines


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


All Audi gasoline straight-5 2.2 L MC engines	680–770 rpm680–770 rpm680–770 rpm

expand_moreAll Audi gasoline straight-4 1.8 L NP engines


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


All Audi gasoline straight-4 1.8 L SH engines	825–975 rpm825–975 rpm825–975 rpm
All other modifications	750–850 rpm750–850 rpm750–850 rpm

expand_moreIdling speed with manual gearbox

expand_moreAll Audi gasoline straight-4 1.8 L 4B engines


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

expand_moreAll Audi gasoline straight-4 1.8 L NP engines


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


All Audi gasoline straight-4 1.8 L SH engines	825–975 rpm825–975 rpm825–975 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

expand_moreAll Audi gasoline straight-4 1.8 L 4B engines


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

expand_moreAll Audi gasoline straight-4 1.8 L NP engines


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 %


CO content at increased idling speed	0–0.3 %0–0.3 %0–0.3 %
Delta lambda	0.03 λ0.03 λ0.03 λ

expand_moreIgnition time

expand_moreAll Audi gasoline straight-4 1.8 L 4B engines


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

expand_moreAll Audi gasoline straight-4 1.8 L NP engines


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


All Audi gasoline straight-4 1.8 L SH engines	-18°00'±2°00' - before TDC + after TDC
All other modifications	-9°00'±1°00' - before TDC + after TDC


Increased idling speed	2500–2800 rpm2500–2800 rpm2500–2800 rpm
Lambda value	0.97–1.03 λ0.97–1.03 λ0.97–1.03 λ

expand_moreMaximum HC content at idling


2.2 quattro with gasoline straight-5 2.2 L 135 HP engine (1984.8–1988.12)	400 ppm400 ppm400 ppm


Petrol conditioning speed	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 Audi gasoline straight-4 1.8 L NP engines

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 Audi gasoline straight-4 1.8 L NP engines

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 NP 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 1988 Audi 100 Avant 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.

Chassis Specifications
Emission

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 Avant 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 1988 Audi 100 Avant Quattro you're not only saving money, but also also improving your technical skills and learning something new.

1988 Audi 100 Avant Quattro C3 facelift Emission

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Conquer your fears and never give up!

Audi 100 Avant Quattro C3 facelift model years

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