ENGINE UNIT GENERAL


  1. OUTLINE


    1. The 2AR-FE engine is an in-line 4-cylinder, 2.5 liter, 16 valve DOHC engine. This engine uses the Dual Variable Valve Timing-intelligent (VVT-i) system, Direct Ignition System (DIS), Acoustic Control Induction System (ACIS) and Electronic Throttle Control System-intelligent (ETCS-i). These control functions achieve improved engine performance, fuel economy, and clean emissions.

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  2. MAJOR DIFFERENCE


    1. The 2015 models have been modified from the 2014 models as shown below:


      1. Emission regulation has been changed.

  3. SPECIFICATION

    Engine Type 2AR-FE
    No. of Cyls. & Arrangement 4-cylinder, In-line
    Valve Mechanism

    16-valve DOHC, Chain Drive

    (With Dual VVT-i)
    Combustion Chamber Pentroof Type
    Flow of Intake and Exhaust Gasses Cross-flow
    Fuel System SFI
    Ignition System DIS
    Displacement

    cm3(cu. in.)

    		 2494 (152.2)
    Bore X Stroke mm (in.) 90.0 X 98.0 (3.54 X 3.86)
    Compression Ratio 10.4 : 1
    Max. Output (SAE-NET)*1

    kW@rpm

    (HP@rpm)

    133@6000

    (178@6000)

    Max. Torque (SAE-NET)*1

    Tier2-Bin5

    N*m@rpm

    (ft.*lbf@rpm)

    231@4100

    (170@4100)
    Oil Capacity Dry liters (US qts, Imp. qts) 5.7 (6.0, 5.0)
    With Oil Filter liters (US qts, Imp. qts) 4.4 (4.6, 3.9)
    Without Oil Filter liters (US qts, Imp. qts) 4.0 (4.2, 3.5)
    Oil Grade

    ILSAC GF-5 multigrade engine oil*7

    API grade SL "Energy-Conserving", SM "Energy-Conserving", SN "Resource-Conserving" or ILSAC multigrade engine oil*8
    Engine Coolant Type

    TOYOTA Genuine Super Long Life

    Coolant or the following*2
    Capacity liters (US qts, Imp. qts) 7.3 (7.7, 6.4)
    Spark Plug Type DENSO Made SK16HR11 (Iridium)
    Plug Gap mm (in.) 1.0 to 1.1 (0.0394 to 0.0433)
    Firing Order 1 - 3 - 4 - 2
    Fuel Octane Rating 87 or higher
    Emission Regulation Tailpipe EPA*5 Tier2-Bin5 (SFTP*4)
    CARB*6 LEVII-ULEV (SFTP*4)
    Evaporative LEVII, ORVR
    Engine Service Mass*3 (Reference) kg (lb) 148 (326.3)

    • *1: Maximum output and torque rating are determined using the revised SAE J1349 procedure.

    • *2: Similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid organic acid technology. (Coolant with long-life hybrid organic acid technology consists of a combination of low phosphates and organic acids.)

    • *3: The figure shown is the weight of the part without coolant and oil.

    • *4: Supplemental Federal Test Procedure

    • *5: Environmental Protection Agency (EPA)

    • *6: California Air Resources Board (CARB)

    • *7: Models for U.S.A. and Canada

    • *8: Destination packages for South Korea and Mexico

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  4. MAIN FEATURES


    1. The 2AR-FE engine has achieved the following performance through the use of the items listed in the table below.


      1. High performance and reliability

      2. Low noise and vibration

      3. Lightweight and compact design

      4. Good serviceability

      5. Clean emissions and fuel economy

        Item (1) (2) (3) (4) (5)
        Engine Proper A cylinder head cover sub-assembly made of magnesium alloy is used. ○
        A taper squish shape is used for combustion chambers. ○ ○
        Spiny-type liners are used in the cylinder bores. ○ ○ ○
        A water jacket spacer is used. ○ ○
        The piston skirt is coated with resin. ○ ○ ○
        Low tension piston rings are used. ○ ○
        A resin gear balance shaft is used. ○ ○
        Valve Mechanism The Dual Variable Valve Timing-intelligent (VVT-i) system is used. ○ ○
        A chain sub-assembly and No. 1 chain tensioner assembly are used. ○ ○
        Valve lash adjuster assemblies are used. ○ ○ ○
        No. 1 valve rocker arm sub-assemblies are used. ○ ○
        Lubrication System An oil filter with a replaceable element is used. ○
        Cooling System TOYOTA Genuine Super Long Life Coolant (SLLC) is used. ○
        Intake and Exhaust System A charcoal filter is used in the air cleaner cap. ○
        An intake manifold made of plastic is used. ○
        A linkless type throttle body with motor assembly is used. ○ ○
        A stainless steel exhaust manifold sub-assembly is used. ○ ○
        An ultra thin-wall, high-cell density ceramic type Three-Way Catalytic converter (TWC) is used. ○
        Fuel System A fuel returnless system is used. ○ ○ ○
        Quick connectors are used to connect the fuel hose with the fuel pipe. ○
        Compact 12-hole type fuel injector assemblies are used. ○ ○
        Ignition System The Direct Ignition System (DIS) is used. ○ ○ ○ ○
        Long-reach type iridium-tipped spark plugs are used. ○ ○ ○
        Charging System A segment conductor type generator assembly is used. ○ ○
        A generator clutch pulley with a one-way clutch is used. ○ ○
        Starting System A planetary reduction-segment conductor motor type starter assembly is used. ○
        Serpentine Belt Drive System A serpentine belt drive system is used. ○ ○
        Engine Control System Magnetic Resistance Element (MRE) type camshaft position sensors are used. ○ ○
        The Electronic Throttle Control System-intelligent (ETCS-i) is used. ○ ○
        An Acoustic Control Induction System (ACIS) is used. ○
        The cranking hold function* is used. ○
        An evaporative emission control system is used. ○

        *: Models with smart key system