Audi 1T engine
Engines

Audi 1T engine

Technical characteristics of the 2.5-liter diesel engine Audi 1T, reliability, resource, reviews, problems and fuel consumption.

The 2.5-liter Audi 1T 2.5 TDI diesel engine was produced by the concern from 1989 to 1991 and was installed only on a restyled version of the popular model with an index of 100 in the C3 body. This engine was the first representative of a very famous line of 5-cylinder diesel engines.

The EA381 series also includes: CN, AAS, AAT, AEL, BJK and AHD.

Specifications of the Audi 1T 2.5 TDI engine

Exact volume2460 cm³
Supply systemdirect injection
Internal combustion engine power120 hp
Torque265 Nm
Cylinder blockcast iron R5
Block headaluminum 10v
Bore81 mm
Piston stroke95.5 mm
Compression ratio20.5
Features of the internal combustion engineSOHC, intercooler
Hydraulic compensatorsYes
Timing drivebelt
Phase regulatorno
TurbochargingYes
What kind of oil to pour5.2 liters 5W-40
fuel typediesel
Environmental classEURO 1
Approximate resource500 000 km

Fuel consumption Audi 2.5 1T

Using the example of a 100 Audi 1990 with a manual transmission:

City8.8 liters
Track6.3 liters
Mixed7.2 liters

Which cars were equipped with a 1T 2.5 l engine

Audi
100 C3 (44)1990 – 1991
  

Disadvantages, breakdowns and problems of 1T

This engine is known for its high reliability and all its problems from old age.

The main difficulties for the owner are the adjustment of the electronic injection pump VE37

Aluminum cylinder head does not like overheating, monitor the condition of the cooling system

Every 100 km, it is advisable to change the timing belt, since the valve bends when it breaks

On long runs, the turbine, mass air flow sensor and hydraulic lifters often require attention.


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