Audi A6 1994 Avant 2.5 TDI Quattro

Audi A6 1994 2.5 diesel description

Estate car / wagon Audi A6 1994 Avant 2.5 TDI Quattro has been produced from July, 1995 to August, 1997. It has five-cylinder diesel engine with displacement of 2.5 litres, which produces power of 140 horsepower on 4000 rpm and torque 290 Nm (Newton metres) on 1900 revolutions per minute.

This 5-cylinder 10-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. Approximate engine life expectancy (mileage until serious repairs are required) for this engine is between 400 000 and 670 000 kilometres. It is important to remember that engine life is highly dependent on regular maintenance and the quality of the oils and fuels used.
More engine specs 
Quite reliable engine if not overheated. Occasionally, the high pressure fuel pump can cause  ...  This Audi A6 2.5 engine oil type is 5W-40 and oil capacity is 5.2 litres.

Audi A6 1994 Avant 2.5 TDI Quattro has AWD (all wheel drive) (power is automatically distributed between the wheel axles) and manual gearbox with 6 gears. The vehicle features full-time Quattro IV all-wheel drive with Torsen center differential and electronic traction control, which operates at speeds up to 40 km/h (25 mph) and applies braking to spinning wheels, with the effect of locking the front and rear differentials.
Audi A6 1994 Avant 2.5 TDI Quattro accelerates to speed 100 kilometres per hour in 10.2 seconds. The maximum speed of this car is 201 km/h.

In combined cycle (city and motorway), the Audi A6 1994 Avant 2.5 TDI Quattro fuel consumption is 7 litres per 100km (14.3 km/l) - this is one of most fuel efficient Audi A6 1994 - 1997 versions, city fuel economy - 9.4 l/100km, fuel consumption on highway - 5.6 l/100km. Fuel tank capacity is 80 litres or 21.14 gallons, which gives a mileage up to 1140 kilometers without refueling in urban cycle and even up to 1420 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 are also two other Audi A6 versions - with front wheel drive and manual gearbox (Audi A6 1994 Avant 2.5 TDI MT), and with front wheel drive and automatic gearbox (Audi A6 1996 Avant 2.5 TDI AT) available:
  • Audi A6 1994 Avant 2.5 TDI MT manufacturer's fuel consumption is similar - 6.9 litres per 100 km, whereas users reported real fuel consumption is similar - 6.8 litres per 100 km
  • Audi A6 1996 Avant 2.5 TDI AT is more sluggish, reaching 100 km/h 1.2 seconds later (in 11.4 seconds), moreover, it is less economic with manufacturer's fuel consumption is higher by 0.6 litres per 100 km or 9 % - 7.6 litres per 100 km, whereas users reported real fuel consumption is higher by 0.3 litres per 100 km or 4 % - 7.1 litres per 100 km
Audi A6 2.5 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 2.5 TDI Quattro technical data

Model: Audi A6 Avant 2.5 TDI Quattro
Body style: Estate car / wagon
Production period: 1995. July ... 1997. August 
Engine: 2461 cm3 Diesel, 5 cylinders CO2 emissions: no data
Power: 140 HP ON 4000 RPM Torque: 290 NM ON 1900 RPM
Gearbox: Manual gearbox (6 gears) Drive type: All wheel drive (AWD, 4x4)
Top speed: 201 km/h Acceleration 0-100 km/h: 10.2 seconds
Fuel consumption (l/100km): 7.0 (combined) 9.4 (urban) 5.6 (highway)
Real fuel consumption: 7.5 l/100km (31.4 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: 2160 kg

Audi A6 1994 Avant 2.5 TDI Quattro engine AEL

Engine reliability and common problems:

Quite reliable engine if not overheated. Occasionally, the high pressure fuel pump can cause problems.
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 2460 cm3
Number of cylinders 5
Bore (cylinder diameter) 81 mm
Stroke length (piston move) 95.5 mm
Compression ratio 20.5 : 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 100,000 km
Fuel system Injection
Audi A6 1994 Avant 2.5 TDI Quattro oil type 5W-40
Oil capacity 5.2 litres (5.5 quarts) More service info
Power 140 HP ON 4000 RPM
Torque 290 NM ON 1900 RPM
Start of production (year) 1994
Duration of production 3 years

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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