title: 3.6 FSI VR6 EA390 Engine Specs
image: ../engimages/3.6fsi.jpg
description: 
The VW 3.6 FSI engine is a VR6 (narrow V family EA390) gasoline 3.6-liter engine. It was first introduced to Audi Q7 in 2005 (BHK and BHL engines) and later to other VW vehicles: Passat R36 and CC (BLV, BWS), Phaeton (CHNA and CMVA), Touareg (CGRA and etc.). The 3.6-liter version was build from the 3.2 V6 FSI engine installed in Audi models. The bigger displacement gave a noticeable increase in power and torque compared with the 3.2L engine.

The 3.6 FSI engine has a new 10.6 degrees VR-shape cylinder block made of cast iron with lamellar graphite. The cylinder offset was also changed from 12.5 mm to 22 mm. The dimension of the new cylinder block is the same as the 3.2 VR6 manifold injection engine. The oil pump is integrated into the engine block. Now, the engine has cast iron crankshaft but still carried by seven main bearings. There are also new aluminum alloy pistons with a graphite coating.

The 3.6 VR6 engine has 24-valve cylinder head made of a hypereutectic 'Alusil' aluminum-silicon alloy (AlSi17Cu4Mg). The cylinder head design is identical to the 3.2 FSI V6 engine head. The engine has double overhead chain-driven camshafts. One camshaft is for all intake valves, and one for all exhaust valves. Both of them are equipped with continuous timing adjustment. The variable valve timing system has a following maximum adjustment of the camshafts: 52 degrees for the intake timing; 42 degrees for the exhaust. The cylinder head has 4 valves per cylinder (24 valves total). They have an unequal length. The diameter of the intake valves is 33.2 mm; the diameter of the exhaust valves is 30.2 mm; the valve stem diameter of both valves is 6 mm. The valves are actuated by low-friction roller finger cam followers equipped with hydraulic valve clearance compensation.

The engine has a direct fuel injection FSI (Fuel Stratified Injection). The fuel injectors are mounted from the intake sides. The bores for cylinders 1, 3 and 5 are located above the intake manifold; the fuel injectors for cylinders 2, 4 and 6 are installed below the intake manifold. The high-pressure fuel pump is located on the cylinder head and driven by the camshaft timing chain. It produces fuel the pressure of 1,595 psi (110 bars). The 3.6 FSI has a plastic variable length intake manifold with the power and torque positions switched by opening and closing the flap control valve. The power settings are actuated at 0-1,200 and 4,000+ rpm; the torque position is switched on between 1,200 and 4,000 rpm. The engine also has an electronically controlled throttle valve/body (drive by wire).

The engine is controlled by ECU Bosch Motronic MED 9.1. The ignition is also electronic. The exhaust system is equipped with two pre-catalytic converters and two main catalytic converters. With all these features, the 3.6 FSI engine complies with the Low Emission Vehicle (LEV2) and European Euro 5 emission standards.
enginespecs:
Manufacturer: Volkswagen AG
Production years: 2005-present day
Cylinder block material: Cast Iron
Cylinder head material: Aluminum
Fuel type: Gasoline
Fuel system: Direct fuel injection
Configuration: VR
Number of cylinders: 6
Valves per cylinder: 4
Valvetrain layout: DOHC
Bore, mm: 89.0 mm (3.50 in)
Stroke, mm: 96.4 mm (3.80 in)
Displacement, cc: 3,598 cc (219.6 cu in)
Type of internal combustion engine: Four-stroke, naturally aspirated
Compression Ratio: 12.1:1, 11.4:1 - CDVA engine
Power, hp: 260-300 hp (191-221kW)/ 6,000-6,600
Torque, lb ft: 258-295 lb-ft (350-400 Nm)/ 2,500-5,300
Engine weight: -
Firing order: 1-5-3-6-2-4
Engine oil weight: VW 502.00/504.00; SAE 5W-30, 5W-40
Engine oil capacity, liter: 6.7 (7.1 qts)
Oil change interval, mile: 9,000 (15,000 km) or 12 month
Applications: VW Passat, VW Passat CC, VW Touareg, VW Phaeton, VW Teramont/Atlas, Audi Q7, Skoda Sup