Engine & identification
Vehicle identification
| No. of cylinders Type | 4/DOHC |
|---|---|
| Capacity (Fiscal) cc | 998 |
| Suitable for unleaded petrol | Yes |
| Minimum octane rating RON | 95 |
| Ignition system Make | Toyota |
| Ignition system Type | TCCS |
| Ignition system Description | Map-DI |
| Trigger location | Cam/Crankshaft |
| Fuel system Make | Toyota |
| Fuel system Type | TCCS |
| Fuel system Description | MFI-s |
| Air metering Type | Mass |
| 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 1.0 (1999–2006) is 1-3-4-2.
| Firing order | 1-3-4-2 |
|---|
Valve clearances
Valve clearances for the Toyota Yaris 1.0 (1999–2006) are 0,15-0,23 mm inlet and 0,22-0,30 mm exhaust, measured cold.
| Valve clearance - INLET mm | 0,15-0,23 cold |
|---|---|
| Valve clearance - EXHAUST mm | 0,22-0,30 cold |
Engine oil & fluids
Engine oil
The Toyota Yaris 1.0 (1999–2006) takes 3.2 litres of engine oil with the filter.
See the reference table for the complete engine oil entries and their conditions.
Manual gearbox
See the reference table for the complete manual gearbox entries and their conditions.
Coolant
See the reference table for the complete coolant entries and their conditions.
Grades, filling conditions and capacities
| Engine oil options | |
|---|---|
| Ambient temperature range | -29°C➞10°C |
| Engine oil grade SAE | 5W-30 |
| Engine oil classification API/ACEA | SJ/A1, A3 |
| Ambient temperature range | -18°C➞38°C |
| Engine oil grade SAE | 10W-30 |
| Engine oil classification API/ACEA | SJ/A1, A3 |
| Ambient temperature range | -12°C➞38°C |
| Engine oil grade SAE | 15W-40 |
| Engine oil classification API/ACEA | SJ/A2 |
| Ambient temperature range | -7°C➞38°C |
| Engine oil grade SAE | 20W-50 |
| Engine oil classification API/ACEA | SJ/A2 |
| Engine with filter(s) litres | 3.2 |
| Other lubricants and capacities | |
| Manual transmission oil grade SAE | 75W-90 |
| Manual transmission oil classification | GL-4/5 |
| Manual transmission litres | 1.4 |
| Auto shift manual (ASM) transmission oil grade SAE | 75W-90 |
| Auto shift manual (ASM) transmission oil classification | GL-4/5 |
| Auto shift manual (ASM) transmission (drain & refill) litres | 1.4 |
| Auto shift manual (ASM) transmission | |
| Coolant Type | Toyota SLLC |
| Coolant Colour | Pink |
| Cooling system - total capacity litres | 4.7 |
| Brake fluid Type | DOT 3 |
| Clutch fluid Type | DOT 3 |
| Power steering fluid Type | Dexron III |
| Power steering fluid litres | 0.7 |
Brakes & wear limits
Brake disc thickness
Brake discs on the Toyota Yaris 1.0 (1999–2006) are replaced at a minimum thickness of 16 mm (ventilated) front; the rear brake drums are replaced at a maximum diameter of 201 mm.
| Minimum disc thickness for replacement - ventilated Front | 16 mm |
|---|---|
| Maximum drum diameter for replacement Rear | 201 mm |
Brake disc and drum dimensions
| Disc runout Front | 0,05 mm |
|---|---|
| Minimum pad thickness Front | 1 mm |
| Minimum shoe thickness Rear | 1 mm |
| Parking brake travel No. of notches | 6-9 |
Service & electrical
Battery
The Toyota Yaris 1.0 (1999–2006) uses a 12 V, 36 Ah battery.
| Battery V/RC(Ah) | 12 (36) |
|---|
Spark plugs
The Toyota Yaris 1.0 (1999–2006) uses NGK BKR5EYA spark plugs with a 0,8 mm electrode gap.
| Spark plugs Original equipment | Denso |
|---|---|
| Spark plug Type | — |
| Electrode gap mm | — |
| Electrode gap | |
| Spark plugs Make | Bosch |
| Spark plug Type | FR7KCU |
| Electrode gap mm | 1.0 |
| Spark plugs Make | NGK |
| Spark plug Type | BKR5EYA |
| Electrode gap mm | 0,8 |
Tuning and emissions
| Tuning conditions | — |
|---|---|
| View more information | — |
| Ignition timing, idle speed | |
| Ignition timing - basic BTDC °Engine/rpm | 10±2/550 Not adjustable |
| Ignition timing - alternative °Engine/rpm | Not adjustable |
| Ignition advance checks °Engine/rpm | ECM Controlled |
| Idle speed rpm | 550±50 Not adjustable |
| Idle speed | |
| Oil temperature °C | 80 |
| CO level at idle speed - tailpipe Vol. % CO | 0,5 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 |
| Increased idle speed for CO test rpm | 2400-2600 |
| CO content at increased idle speed Vol. % | 0,3 |
| Lambda at increased idle λ | 0,98-1,02 |
Starting and charging
| Alternator output A/V/rpm | 10/13,8-14,4/5000 |
|---|
Service checks and adjustments
| Compression pressure bar | 11,3-14,7 |
|---|---|
| Oil pressure bar/rpm | — |
| Oil pressure | |
| Radiator cap bar | 0,93-1,23 |
| Thermostat opens °C | 78-82 |
| Drive belt tension - alternator/PAS/AC mm | /11,5-12,5 |
Fuel system
| Regulated pressure with vacuum bar | 3,0-3,4 |
|---|---|
| Engine coolant temperature (ECT) sensor Ohm/°C | 200-400/80 |
| Crankshaft position (CKP) sensor/engine speed (RPM) sensor Ohm | 985-1600 |
| Injector Ohm | 13,4-14,2 |
| Injector opening duration (hot) ms/rpm | 1,8-3,4 |
| Lambda sensor (Oxygen) heater Ohm | 11,0-16,0 |
Tightening torques
Cylinder head bolt torque
The cylinder head bolts on the Toyota Yaris 1.0 (1999–2006) are tightened in 3 stages: 17 Nm, then 34 Nm, then a final 90°.
| Cylinder head | |
|---|---|
| Tighten | 17 Nm |
| Tighten | 34 Nm |
| Tighten | 90° |
| Cylinder head instructions | — |
|---|---|
| View more information | — |
| Cylinder head | |
| View more information | — |
| Other engine tightening torques | |
| Main bearings Renew bolts/nuts | No |
| Main bearings Stage 1 | 47 Nm |
| Main bearings Stage 2 | 59 Nm |
| Big end bearings Renew bolts/nuts | — |
| View more information | — |
| Big end bearings | |
| Big end bearings Stage 1 | 22 Nm |
| Big end bearings Stage 2 | 90° |
| Oil pump to cylinder block | 9 Nm |
| Sump bolts | — |
| View more information | — |
| Wait 2 hours before starting engine. | |
| Sump drain bolt | 30 Nm |
| Flywheel/driveplate | 1)32 Nm 2)64 Nm |
| Flywheel/driveplate | |
| Clutch pressure plate | 19 Nm |
| Crankshaft pulley/damper centre bolt | 130 Nm |
| Camshaft sprocket/gear | — |
| Camshaft sprocket/gear | |
| Camshaft carrier/cap | 13 Nm |
| Camshaft/rocker cover | — |
| View more information | — |
| Assemble components within 3 minutes. | |
| Inlet manifold to cylinder head | 19 Nm |
| Exhaust manifold to cylinder head | 25 Nm |
| Exhaust downpipe to manifold | 62 Nm |
| Water pump | 9 Nm |
| Spark plugs | 18 Nm |
| Fuel rail | 21 Nm |
| Crankshaft position (CKP) sensor/engine speed (RPM) sensor | 8 Nm |
| Camshaft position (CMP) sensor | 8 Nm |
| Lambda sensor (Oxygen) | 44 Nm |
| Knock sensor (KS) | 39 Nm |
| Engine oil pressure switch | 13 Nm |
| Chassis tightening torques | |
| Front hub | 216 Nm |
| Rear hub - wheel bearing housing bolts | 52 Nm |
| Steering wheel | 34 Nm |
| Steering rack/box mounting | 74 Nm |
| Steering track rod end | 49 Nm |
| Brake caliper to carrier Front | 34 Nm |
| Brake caliper/carrier to hub Front | 88 Nm |
| Back plate to hub Rear | 52 Nm |
| ABS sensor Front | 8 Nm |
| Road wheels | 103 Nm |
Air conditioning
| No. of AC service connectors | 2 |
|---|---|
| Air conditioning restrictor type | Expansion valve |
| Compressor clutch/magnetic coupling | Yes |
| Compressor variable displacement solenoid | No |
| Air conditioning refrigerant Type | R134a |
| Air conditioning refrigerant quantity grams | — |
| Air conditioning refrigerant quantity | |
| Air conditioning oil group | PAG |
| Air conditioning oil Type | Dens Oil 8 |
| Air conditioning oil quantity cm³ | — |
| Oil quantity | |
| Air conditioning oil viscosity ISO | 46 |
Frequently asked questions
What is the firing order of the Toyota Yaris 1.0?
The firing order for the Toyota Yaris 1.0 (1999–2006) is 1-3-4-2.
What spark plugs does the Toyota Yaris 1.0 use?
The Toyota Yaris 1.0 (1999–2006) uses NGK BKR5EYA spark plugs with a 0,8 mm electrode gap.
How much oil does the Toyota Yaris 1.0 take?
The Toyota Yaris 1.0 (1999–2006) takes 3.2 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 1.0?
Valve clearances for the Toyota Yaris 1.0 (1999–2006) are 0,15-0,23 mm inlet and 0,22-0,30 mm exhaust, measured cold.
What is the cylinder head torque for the Toyota Yaris 1.0?
The cylinder head bolts on the Toyota Yaris 1.0 (1999–2006) are tightened in 3 stages: 17 Nm, then 34 Nm, then a final 90°.
What is the minimum brake disc thickness for the Toyota Yaris 1.0?
Brake discs on the Toyota Yaris 1.0 (1999–2006) are replaced at a minimum thickness of 16 mm (ventilated) front; the rear brake drums are replaced at a maximum diameter of 201 mm.