Engine & identification
Vehicle identification
| No. of cylinders Type | 4/DOHC |
|---|---|
| Capacity (Fiscal) cc | 1798 |
| Compression ratio :1 | 10,0 |
| Suitable for unleaded petrol | Yes |
| Minimum octane rating RON | 97 |
| Ignition system Make | Toyota |
| Ignition system Description | Map-DI |
| Trigger location | Cam/Crankshaft |
| Fuel system Make | Toyota |
| Fuel system Description | MFI-s |
| Air metering Type | MAP |
| Combined ignition and fuel ECM | Yes |
| Diagnostic socket | Yes |
Ignition system
| Ignition coil supply voltage + with ballast V | 12,0 |
|---|
Firing order
The firing order for the Toyota Yaris 1.8 GRMN (2018) is 1-3-4-2.
| Firing order | 1-3-4-2 |
|---|
Valve clearances
Valve clearances on the Toyota Yaris 1.8 GRMN (2018) are hydraulic — they self-adjust, so no manual clearance figure applies.
| Valve clearance - INLET mm | Hydraulic |
|---|---|
| Valve clearance - EXHAUST mm | Hydraulic |
Engine oil & fluids
Engine oil
The Toyota Yaris 1.8 GRMN (2018) takes 4.9 litres of engine oil with the filter.
See the reference table for the complete engine oil entries and their conditions.
Manual gearbox
The manual gearbox has a listed capacity of 2.4 litres. The specified oil is SAE 75W, with classification GL-4.
Coolant
The listed total cooling-system capacity is 5.4 litres.
See the reference table for the complete coolant entries and their conditions.
Grades, filling conditions and capacities
| Engine oil options | |
|---|---|
| Ambient temperature range | All temperatures |
| Engine oil grade SAE | 5W-40 |
| Engine oil classification API/ACEA | SN/A3+B4, A3 |
| Engine with filter(s) litres | 4.9 |
| Other lubricants and capacities | |
| Manual transmission oil grade SAE | 75W |
| Manual transmission oil classification | GL-4 |
| Manual transmission litres | 2.4 |
| Coolant Type | Toyota SLLC |
| Coolant Colour | Pink |
| Cooling system - total capacity litres | 5.4 |
| Brake fluid Type | DOT 4 |
| Clutch fluid Type | DOT 4 |
Brakes & wear limits
Brake disc thickness
Brake discs on the Toyota Yaris 1.8 GRMN (2018) are replaced at a minimum thickness of 22 mm (ventilated) front and 7 mm rear.
| Minimum disc thickness for replacement - ventilated Front | 22 mm |
|---|---|
| Minimum disc thickness for replacement Rear | 7 mm |
Brake disc and drum dimensions
| Disc runout Front | 0,05 mm |
|---|---|
| Minimum pad thickness Front | 1 mm |
| Minimum pad thickness Rear | 2 mm |
Service & electrical
Ignition timing
The ignition timing on the Toyota Yaris 1.8 GRMN (2018) is not adjustable.
| Ignition timing | |
|---|---|
| Ignition timing - basic BTDC °Engine/rpm | Not adjustable |
Battery
The Toyota Yaris 1.8 GRMN (2018) uses a 12 V, 25 Ah battery.
| Battery V/RC(Ah) | 12 (25) |
|---|
Tuning and emissions
| Tuning conditions | — |
|---|---|
| View more information | — |
| Ignition timing | |
| Ignition advance checks °Engine/rpm | ECM Controlled |
| Idle speed rpm | 820±50 Not adjustable |
| Oil temperature °C | 80 |
| CO level at idle speed - tailpipe Vol. % CO | 0,2 Max Not adjustable |
| HC level at idle speed ppm | 100 |
| CO2 level at idle speed Vol. % CO2 | 14,5-16 |
| O2 level at idle speed Vol. % O2 | 0,1-0,5 |
| CO content at increased idle speed Vol. % | 0,1 |
| Lambda at increased idle λ | 0,97-1,03 |
Service checks and adjustments
| Compression pressure bar | 11,0-14,0 |
|---|---|
| Radiator cap bar | 0,79-1,23 |
| Thermostat opens °C | 80-84 |
Fuel system
| System pressure bar | 3,1-3,5 |
|---|---|
| Engine coolant temperature (ECT) sensor Ohm/°C | 2320-2590/20 |
| Injector Ohm | 11,6-12,4 |
| Lambda sensor (Oxygen) heater Ohm | — |
Spark plugs
| Spark plugs Original equipment | NGK |
|---|---|
| Spark plug Type | ILKAR7G9 |
| Electrode gap mm | 0,8-0,9 |
| Spark plugs Make | NGK |
| Spark plug Type | ILKAR7G9 |
| Electrode gap mm | 0,8-0,9 |
Tightening torques
Cylinder head bolt torque
The cylinder head bolts on the Toyota Yaris 1.8 GRMN (2018) are tightened in 3 stages: 49 Nm, then 90°, then a final 45°.
| Cylinder head | |
|---|---|
| Maximum bolt length | 149,2 mm |
| Tighten | 49 Nm |
| Tighten | 90° |
| Tighten | 45° |
| Cylinder head instructions | — |
|---|---|
| Other engine tightening torques | |
| Main bearings Renew bolts/nuts | — |
| View more information | — |
| Main bearings | |
| Main bearings Stage 1 | 40 Nm |
| Main bearings Stage 2 | 90° |
| Big end bearings Renew bolts/nuts | — |
| View more information | — |
| Big end bearings | |
| Big end bearings Stage 1 | 20 Nm |
| Big end bearings Stage 2 | 90° |
| Oil pump to cylinder block | 21 Nm |
| Sump bolts | — |
| View more information | — |
| Wait 2 hours before starting engine or filling engine with oil to allow sealant to dry. | |
| Sump drain bolt | 37 Nm |
| Flywheel/driveplate | 49 Nm+90°/- |
| Flywheel/driveplate | |
| Crankshaft pulley/damper centre bolt | 190 Nm |
| Camshaft sprocket/gear | 54 Nm |
| Camshaft carrier/cap | — |
| View more information | — |
| Wait 2 hours before starting engine or filling engine with oil to allow sealant to dry. | |
| Camshaft/rocker cover | 10 Nm |
| View more information | — |
| Assemble components within 3 minutes and tighten bolts within 10 minutes. Wait 2 hours before starting engine or filling engine with oil to allow sealant to dry. | |
| Inlet manifold to cylinder head | 25 Nm |
| Exhaust manifold to cylinder head | — |
| View more information | — |
| Exhaust manifold to cylinder head | |
| Exhaust downpipe to manifold | 43 Nm |
| Spark plugs | 20 Nm |
| Fuel rail | 21 Nm |
| Crankshaft position (CKP) sensor/engine speed (RPM) sensor | 10 Nm |
| Camshaft position (CMP) sensor | 10 Nm |
| Engine coolant temperature (ECT) sensor | 20 Nm |
| Lambda sensor (Oxygen) | 44 Nm |
| Knock sensor (KS) | 21 Nm |
| Engine oil pressure switch | 15 Nm |
| Oil filter | 18 Nm |
| Chassis tightening torques | |
| Front hub | 216 Nm |
| Rear hub - wheel bearing housing bolts | 90 Nm |
| Steering wheel | 50 Nm |
| Steering rack/box mounting | 79 Nm |
| Steering track rod end | 49 Nm |
| Brake caliper to carrier Front | 34 Nm |
| Brake caliper to carrier | |
| Brake caliper/carrier to hub Front | 107 Nm |
| Brake caliper to carrier Rear | 28 Nm |
| Brake caliper/carrier to hub Rear | 57 Nm |
| ABS sensor Front | 9 Nm |
| ABS sensor Rear | 9 Nm |
| Road wheels | 103 Nm |
Air conditioning
| No. of AC service connectors | 2 |
|---|---|
| Air conditioning restrictor type | Expansion valve |
| Compressor clutch/magnetic coupling | No |
| Compressor variable displacement solenoid | Yes |
| Air conditioning refrigerant Type | — |
| Do not mix R134a with R1234yf. | |
| Air conditioning refrigerant quantity grams | R134a=360±30 R1234yf=350±30 |
| Air conditioning oil group | PAG |
| Air conditioning oil Type | — |
| Do not mix different oil types. | |
| Air conditioning oil quantity cm³ | 90 |
| Air conditioning oil viscosity ISO | 46 |
Frequently asked questions
What is the firing order of the Toyota Yaris 1.8 GRMN?
The firing order for the Toyota Yaris 1.8 GRMN (2018) is 1-3-4-2.
How much oil does the Toyota Yaris 1.8 GRMN take?
The Toyota Yaris 1.8 GRMN (2018) takes 4.9 litres of engine oil with the filter. See the reference table for the complete engine oil entries and their conditions.
What are the valve clearances for the Toyota Yaris 1.8 GRMN?
Valve clearances on the Toyota Yaris 1.8 GRMN (2018) are hydraulic — they self-adjust, so no manual clearance figure applies.
What is the cylinder head torque for the Toyota Yaris 1.8 GRMN?
The cylinder head bolts on the Toyota Yaris 1.8 GRMN (2018) are tightened in 3 stages: 49 Nm, then 90°, then a final 45°.
What is the ignition timing for the Toyota Yaris 1.8 GRMN?
The ignition timing on the Toyota Yaris 1.8 GRMN (2018) is not adjustable.
What is the minimum brake disc thickness for the Toyota Yaris 1.8 GRMN?
Brake discs on the Toyota Yaris 1.8 GRMN (2018) are replaced at a minimum thickness of 22 mm (ventilated) front and 7 mm rear.