VW/Audi 1.2 TDI CR EA189 Engine Specs, Problems, Reliability

VW/Audi 1.2 TDI CR EA189 Engine Specs, Problems, Reliability. The 1.2 TDI-CR 3-cylinder diesel engine seemed first in 2009 as the new engine for the VW Polo. This engine is the result of downsizing in the engine development. The 1.2 TDI is derived by cutting one cylinder of the four-cylinder 1.6 TDI-CR engine.

VW Audi 1.2 TDI CR EA189 Engine Specs

The cast iron cylinder block corresponds to the 1.6-liter version, but without one cylinder it is shorter and lighter. The cylinder bore and stroke coincide. The forged steel crankshaft has counterweights for the first and third cylinder. The engine got balancing shaft driven by chain from the crankshaft. Balancing shaft is placed under the crankshaft in the crankcase.

VW/Audi 1.2 TDI CR EA189 Engine Specs, Problems, Reliability

VW/Audi 1.2 TDI CR EA189 Engine Specs, Problems, Reliability

The cylinder head is crafted from aluminum alloy, and it has four valves per cylinder (two intake and two fatigue valves), intake and fatigue overhead camshafts (DOHC). Like four-cylinder TDI engines with Common Rail, the 1.2 TDI timing belt drives wear down camshaft only, and the intake camshaft drives by gear from fatigue camshaft. The high-pressure fuel pump is driven by timing belt also. The engine has hydraulic tappets/lifters.

The engine control system for the 1.2 TDI with Common Rail is Delphi DCM 3.7. The engine is equipped with variable geometry intake manifold, variable geometry turbocharger, diesel particulate filter and low-temperature EGR system.

VW/Audi 1.2 TDI CR EA189 Engine Problems and Reliability

DPF problem. The engine has problems with the diesel particulate filter while city driving. When your driving style is too ecologically, such issue often came to be. This engine every now and then needs high revs to clean out a DPF. Use high-quality diesel fuel to prevents a DPF clogging.

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VW/Audi 1.2 TDI CR EA189 Engine Specs

Manufacturer Volkswagen AG
Production years 2009-2015
Cylinder block material Cast Iron
Cylinder head material Aluminum
Fuel type Diesel
Fuel system Common Rail
Configuration Inline
Number of cylinders 3
Valves per cylinder 4
Valvetrain layout DOHC
Bore, mm 79.5
Stroke, mm 80.5
Displacement, cc 1199
Type of internal combustion engine Four-stroke, turbocharged
Compression Ratio 16.5:1
Power, hp 75/4200 (55kW) – CFWA
Torque, lb ft 132 lb-ft (180 Nm)/2,000
Engine weight
Firing order 1-2-3
Engine oil weight VW 504.00 – 507.00, 5W30
Engine oil capacity, liter 4.3
Oil change interval, mile 10,000
Applications Volkswagen Polo Mk5, SEAT Ibiza Mk5 Ecomotive, Skoda Fabia Mk2, Skoda Roomster

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