Audi A6 1994 Avant 1.9 TDI

Audi A6 1994 1.9 diesel description

Estate car / wagon Audi A6 1994 Avant 1.9 TDI has been produced from September, 1994 to August, 1997. It has four-cylinder diesel engine with displacement of 1.9 litres, which produces power of 90 horsepower on 4000 rpm and torque 202 Nm (Newton metres) on 1900 revolutions per minute.

This 4-cylinder 8-valve engine camshaft is driven by belt (What is an engine chain and belt? ). Engine has fuel injection system and turbine. The engine meets the Euro 2 emissions standard. Average engine life expectancy (mileage before serious repairs are needed) is from 400 000 to 670 000 kilometres. Note that engine life can be longer or shorter depending on maintenance.
More engine specs 
This engine stands out for its durability and generally remains trouble-free until it has been used extensively over many years. Despite its  ...  This Audi A6 1.9 engine oil type is 5W-40 and oil capacity is 4.3 litres.

Audi A6 1994 Avant 1.9 TDI has front wheel drive (FWD) and manual gearbox with 5 gears.
Audi A6 1994 Avant 1.9 TDI accelerates to speed 100 kilometres per hour in 14.2 seconds. The maximum speed of this car is 173 km/h.

The fuel consumption of this Audi A6 1994 Avant 1.9 TDI in combined mode (combining urban and highway driving) is 6.4 litres per 100km (15.6 km/l) - this is the most fuel efficient Audi A6 1994 - 1997 version, fuel consumption in city - 8.5 l/100km, highway fuel economy - 5.2 l/100km. Fuel tank capacity is 80 litres or 21.14 gallons, which gives a mileage up to 1240 kilometers without refueling in urban cycle and even up to 1520 kilometers on highway.
According to user reviews, the real everyday fuel consumption of this Audi is in line with, and sometimes even lower than, the manufacturer's stated combined consumption. More - Real Audi A6 fuel consumption.

With the same engine there is also Audi A6 version with automatic gearbox (Audi A6 1994 Avant 1.9 TDI AT) available, which is more sluggish, reaching 100 km/h 3.7 seconds later (in 17.9 seconds), but manufacturer's fuel consumption is higher by 0.8 litres per 100 km or 13 % - 7.2 litres per 100 km.
Audi A6 1.9 service information and maintenance intervals Oil change intervals, capacities and specifications, service information for filters, spark plugs, belts etc.
Audi A6 1994

Audi A6 1994 Avant 1.9 TDI technical data

Model: Audi A6 Avant 1.9 TDI
Body style: Estate car / wagon
Production period: 1994. September ... 1997. August 
Engine: 1896 cm3 Diesel, 4 cylinders CO2 emissions: no data
Power: 90 HP ON 4000 RPM Torque: 202 NM ON 1900 RPM
Gearbox: Manual gearbox (5 gears) Drive type: Front wheel drive (FWD)
Maximum speed: 173 km/h Acceleration 0-100 km/h: 14.2 seconds
Fuel consumption (l/100km): 6.4 (combined) 8.5 (urban) 5.2 (highway)
Real fuel consumption: 6.3 l/100km (37.3 MPG) by user reviews from various sources
Fuel tank capacity: 80 litres (21.1 gallons)
Car dimensions: 4.80m (length) 1.78m (width) 1.44m (height)
Turning diameter: 11.4 meters
Trunk capacity: 390 litres
Gross weight: 2000 kg

Audi A6 1994 Avant 1.9 TDI engine 1Z

Engine reliability and common problems:

This engine stands out for its durability and generally remains trouble-free until it has been used extensively over many years. Despite its robust construction, the wear and tear from prolonged use, particularly in aging and low-cost vehicles, has started to reveal weaknesses. One of the most serious issues is the failure of the timing belt, which requires replacement every 60,000 km to prevent catastrophic engine damage. Common faults also include burnt valve seats, which result in a loss of compression, and oil leaks that are frequently traced to a broken lower flange in the crankcase ventilation system. Engine performance problems are often linked to malfunctions in the turbo management system, airflow meter, or EGR valve. Another critical concern arises when fragments of the serpentine belt, often caused by a damaged roller, interfere with the timing mechanism, leading to severe engine failure. The mechanical injectors feature a control injector equipped with a timing sensor, and if this sensor fails, the engine shifts into a limp mode, drastically reducing power output beyond 2000 rpm, with diagnostics identifying a loss of communication with the needle lift sensor.
Overall, this engine can last around 400,000 to 670,000 km if properly maintained, using the correct quality oil and fuel, and carrying out regular checks and maintenance.
The engine has hydraulic valve tappets (lifters), which provide quieter operation and do not require periodic adjustment, but are more complex in design and can cause serious engine damage in the event of failure.
Engine displacement 1896 cm3
Number of cylinders 4
Bore (cylinder diameter) 79.5 mm
Stroke length (piston move) 95.5 mm
Compression ratio 19.5 : 1
Camshaft drive Timing belt

Timing belt engines are generally quieter and less vibrating than chain engines, but belt usually needs to be replaced more often and the risk of breakage is higher.

More service info
Timing belt change interval 60,000 km (recommended)

Sometimes manufacturers do not specify timing chain replacement intervals and design chains for engine life. However, once the recommended change interval has been reached, it is recommended to periodically check the condition of the chain and to change the chain if excessive stretching is detected or if unusual noises from the engine or other symptoms occur.

Fuel system Injection
Audi A6 1994 Avant 1.9 TDI oil type 5W-40
Oil capacity 4.3 litres (4.5 quarts) More service info
Power 90 HP ON 4000 RPM
Torque 202 NM ON 1900 RPM
Engine manufacturer Volkswagen (VW)
Start of production (year) 1991
Duration of production 6 years
Engine also used on Volkswagen Golf Audi 80 Volkswagen Vento Seat Alhambra and 2 other models

All Audi A6 estate car [1994 - 1997] modifications

Modification Engine Power Consumption Gearbox Drive type
Audi A6 1995 Avant 1.8 5V Nov 1995 — Aug 1997 1.8 Petrol 125 HP 9.1 l/100km Manual (5) Front wheel
Audi A6 1996 Avant 1.8 5V Jan 1996 — Aug 1997 1.8 Petrol 125 HP 9.9 l/100km Automatic (4) Front wheel
Audi A6 1995 Avant 1.8 5V Quattro 4x4 Nov 1995 — Aug 1997 1.8 Petrol 125 HP 9.2 l/100km Manual (5) All wheel
Audi A6 1994 Avant 1.9 TDI

Most fuel efficient diesel version

1.9 Diesel 90 HP 6.4 l/100km Manual (5) Front wheel
Audi A6 1994 Avant 1.9 TDI 1.9 Diesel 90 HP 7.2 l/100km Automatic (4) Front wheel
Audi A6 1994 Avant 2.0 Sep 1994 — Nov 1995

Most fuel efficient petrol version

2.0 Petrol 116 HP 8.9 l/100km Manual (5) Front wheel
Audi A6 1994 Avant 2.0 Sep 1994 — Nov 1995 2.0 Petrol 116 HP 9.3 l/100km Automatic (4) Front wheel
Audi A6 1994 Avant 2.3 Sep 1994 — Jul 1995 2.3 Petrol 133 HP 9.5 l/100km Manual (5) Front wheel
Audi A6 1994 Avant 2.3 Sep 1994 — Jul 1995 2.3 Petrol 133 HP 10.0 l/100km Automatic (4) Front wheel
Audi A6 1994 Avant 2.5 TDI 2.5 Diesel 115 HP 6.9 l/100km Manual (5) Front wheel
Audi A6 1994 Avant 2.5 TDI 2.5 Diesel 115 HP 6.9 l/100km Manual (6) Front wheel
Audi A6 1994 Avant 2.5 TDI 2.5 Diesel 115 HP 7.6 l/100km Automatic (4) Front wheel
Audi A6 1994 Avant 2.5 TDI 2.5 Diesel 140 HP 6.9 l/100km Manual (6) Front wheel
Audi A6 1996 Avant 2.5 TDI Apr 1996 — Aug 1997 2.5 Diesel 140 HP 7.6 l/100km Automatic (4) Front wheel
Audi A6 1995 Avant 2.5 TDI Quattro 4x4 Jul 1995 — Aug 1997 2.5 Diesel 140 HP 7.0 l/100km Manual (6) All wheel
Audi A6 1994 Avant 2.6 2.6 Petrol 150 HP 10.2 l/100km Manual (5) Front wheel
Audi A6 1994 Avant 2.6 2.6 Petrol 150 HP 11.1 l/100km Automatic (4) Front wheel
Audi A6 1994 Avant 2.6 Quattro 4x4 2.6 Petrol 150 HP 11.2 l/100km Manual (5) All wheel
Audi A6 1994 Avant 2.6 Quattro 4x4 2.6 Petrol 150 HP 12.3 l/100km Automatic (4) All wheel
Audi A6 1994 Avant 2.8 2.8 Petrol 174 HP 10.6 l/100km Manual (5) Front wheel
Audi A6 1994 Avant 2.8 2.8 Petrol 174 HP 11.5 l/100km Automatic (4) Front wheel
Audi A6 1994 Avant 2.8 Quattro 4x4 2.8 Petrol 174 HP 11.4 l/100km Manual (5) All wheel
Audi A6 1994 Avant 2.8 Quattro 4x4 2.8 Petrol 174 HP 12.3 l/100km Automatic (4) All wheel
Audi A6 1995 Avant 2.8 5V Nov 1995 — Aug 1997 2.8 Petrol 193 HP 10.1 l/100km Manual (5) Front wheel
Audi A6 1995 Avant 2.8 5V Nov 1995 — Aug 1997 2.8 Petrol 193 HP 10.8 l/100km Automatic (4) Front wheel
Audi A6 1995 Avant 2.8 5V Quattro 4x4 Nov 1995 — Aug 1997

Most dynamic version - 100 km/h in 8.2 seconds

2.8 Petrol 193 HP 11.1 l/100km Manual (5) All wheel
Audi A6 1995 Avant 2.8 5V Quattro 4x4 Nov 1995 — Aug 1997 2.8 Petrol 193 HP 11.9 l/100km Automatic (4) All wheel
Audi A6 1994 reviews
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