Engine Audi ADR

The 1.8-liter Audi 1.8 ADR gasoline engine was produced by the concern from 1994 to 2000 and was installed on the most popular models of the company A4, A6 or the fifth generation Passat. This power unit, in fact, did not differ much from its half-brother under the ARG index.

EA827 1.8l family: RP, AAM, ABS, ADZ, PF, ADR, ARG, AEB, ANB, JN.

Specifications

Production years	1994-2000
Displacement, cc	1781
Fuel system	injector
Power output, hp	125
Torque output, Nm	168
Cylinder block	cast iron R4
Block head	aluminum 20v
Cylinder bore, mm	81
Piston stroke, mm	86.4
Compression ratio	10.3
Features	DOHC
Hydraulic lifters	yes
Timing drive	chain & belt
Phase regulator	yes
Turbocharging	no
Recommended engine oil	5W-30
Engine oil capacity, liter	4.5
Fuel type	petrol
Euro standards	EURO 3
Fuel consumption, L/100 km (for Audi A4 1996) — city — highway — combined	12.1 6.5 8.6
Engine lifespan, km	~330 000

The engine was installed on:

Audi A4 B5 (8D) in 1994 – 1998;
Audi A6 C4 (4A) in 1995 – 1997;
Volkswagen Passat B5 (3B) in 1996 – 2000.

Disadvantages of the Audi ADR engine

The most problems are caused by the chain tensioner, which is also the phase regulator.
Also monitor the condition of the timing belt, because when it breaks, the valves always bend.
The crankcase ventilation is often clogged, and the oil separator gasket tans in frost.
The cause of engine thrust failures is usually a dirty throttle or intake flaps.
The viscous coupling of the fan, the pump and the flow meter have a low resource here.

Frequently asked questions about the Audi ADR

How much power does the Audi ADR make?

The Audi ADR develops 125 hp and 168 Nm of torque.

How much oil does the Audi ADR take and which one?

Engine oil capacity: 4.5 liters. Recommended oil: 5W-30.

Does the Audi ADR have a timing belt or chain?

Timing drive of the Audi ADR: chain & belt.

Is the Audi ADR turbocharged?

No, the Audi ADR is naturally aspirated.

Does the Audi ADR need valve clearance adjustment?

No, the Audi ADR has hydraulic lifters, so the valve clearances do not need to be adjusted.

How long does the Audi ADR last?

The typical lifespan of the Audi ADR is ~330 000 km with proper maintenance.

What is the fuel consumption of the Audi ADR?

Audi A4 1996: city 12.1, highway 6.5, combined 8.6 L/100 km.

What cars was the Audi ADR installed on?

Audi A4 B5 (8D) in 1994 - 1998; Audi A6 C4 (4A) in 1995 - 1997; Volkswagen Passat B5 (3B) in 1996 - 2000.

What are the common problems of the Audi ADR?

The most problems are caused by the chain tensioner, which is also the phase regulator. Also monitor the condition of the timing belt, because when it breaks, the valves always bend. All known problems.

What engines are related to the Audi ADR?

EA827 1.8l family: RP, AAM, ABS, ADZ, PF, ARG, AEB, ANB, JN.