Toyota2000–2006Technical specifications

MR2 1.8: Technical specifications

Workshop data for the 1.8-litre petrol (engine code 1ZZ-FE). Covers engine, fluids, brakes, service, torques and air conditioning: the figures to check before a job or a parts order.

Common faults & fixes

Summary

Match the engine code (1ZZ-FE) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Toyota
Model: MR2
Years: 2000–2006
Fuel: Petrol
Engine code: 1ZZ-FE

Performance & efficiency

Power: 103 kW (140 hp)
Engine size: 1,794 cc
Cylinders: 4 · DOHC
Compression ratio: 10:1
Fuel system: Toyota

Fluids & capacities

Engine oil (with the filter): 3.7 litres

All 120 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/DOHC
Capacity (Fiscal) cc	1794
Compression ratio :1	10
Suitable for unleaded petrol	Yes
Minimum octane rating RON	95
Ignition system Make	Toyota
Ignition system Type	TDI
Ignition system Description	Map-DI
Trigger location	Cam/Crankshaft
Fuel system Make	Toyota
Fuel system Type	EFI
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 MR2 1.8 (2000–2006) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Toyota MR2 1.8 (2000–2006) are 0,15-0,25 mm inlet and 0,25-0,35 mm exhaust, measured cold.

Valve clearance - INLET mm	0,15-0,25 cold
Valve clearance - EXHAUST mm	0,25-0,35 cold

Engine oil & fluids

Engine oil

The Toyota MR2 1.8 (2000–2006) takes 3.7 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

Lubricants and capacities — complete reference
Preferred engine oil
Ambient temperature range	All temperatures
Engine oil grade SAE	5W-30
Engine oil classification API/ACEA	SJ/A1, A3
Engine oil options
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	3.7
Other lubricants and capacities
Manual transmission oil grade SAE	75W-90
Manual transmission litres	1.9
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	1.8-1.9
Auto shift manual (ASM) transmission
Auto shift manual (ASM) transmission hydraulic control fluid Type	08886-02206
Auto shift manual (ASM) transmission hydraulic control fluid litres	—
View more information	—
Auto shift manual (ASM) transmission hydraulic control fluid
Cooling system - total capacity litres	10.4
Brake fluid Type	DOT 3
Power steering fluid Type	Toyota power steering fluid EH 08886-01206
Power steering fluid litres	0.6

Brakes & wear limits

Brake disc thickness

Brake discs on the Toyota MR2 1.8 (2000–2006) are replaced at a minimum thickness of 18 mm (ventilated) front and 15 mm rear.

Minimum disc thickness for replacement - ventilated Front	18 mm
Minimum disc thickness for replacement Rear	15 mm

Brake disc and drum dimensions

Disc runout Front	0,05 mm
Disc runout Rear	0,10 mm
Minimum pad thickness Front	1 mm
Minimum pad thickness Rear	1 mm
Parking brake travel No. of notches	5-8

Service & electrical

Spark plugs

The Toyota MR2 1.8 (2000–2006) uses Denso K16R-U11 spark plugs with a 1,1 mm electrode gap.

Spark plugs Original equipment	Denso
Spark plug Type	K16R-U11
Electrode gap mm	1,1
Spark plugs Make	NGK
Spark plug Type	BKR5EYA-11
Electrode gap mm	1,1

Tuning and emissions

Ignition timing, idle speed
Tuning conditions	—
View more information	—
Ignition timing - basic BTDC °Engine/rpm	10±2/800 Not adjustable
Ignition advance checks °Engine/rpm	ECM Controlled
Idle speed rpm	800±50 Not adjustable
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

Battery V/RC(Ah)	12
Alternator output A/V/rpm	80/-/-

Service checks and adjustments

Compression pressure bar	10,0-12,7
Oil pressure bar/rpm	2,9-5,4/3000
Radiator cap bar	0,93-1,23
Thermostat opens °C	80-84

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	1630-2740
Injector Ohm	13,4-14,2
Injector opening duration (hot) ms/rpm	1,92-3,37
Lambda sensor (Oxygen) heater Ohm	11,0-16,0

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Toyota MR2 1.8 (2000–2006) are tightened in 3 stages: 25 Nm, then 49 Nm, then a final 90°.

Cylinder head
Tighten	25 Nm
Tighten	49 Nm
Tighten	90°

Cylinder head
Cylinder head instructions	—
View more information	—
Other engine tightening torques
Main bearings Renew bolts/nuts	—
View more information	—
Main bearings
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	9 Nm
Sump bolts	9 Nm
Sump drain bolt	37 Nm
Flywheel/driveplate	49 Nm+90°
Clutch pressure plate	19 Nm
Crankshaft pulley/damper centre bolt	138 Nm
Camshaft sprocket/gear	54 Nm
Camshaft carrier/cap	—
Camshaft carrier/cap
Camshaft/rocker cover	10 Nm
Inlet manifold to cylinder head	30 Nm
Exhaust manifold to cylinder head	37 Nm
Exhaust downpipe to manifold	62 Nm
Spark plugs	25 Nm
Fuel rail	19 Nm
Crankshaft position (CKP) sensor/engine speed (RPM) sensor	9 Nm
Camshaft position (CMP) sensor	9 Nm
Engine coolant temperature (ECT) sensor	20 Nm
Lambda sensor (Oxygen)	44 Nm
Knock sensor (KS)	39 Nm
Engine oil pressure switch	13 Nm
Chassis tightening torques
Rear hub	216 Nm
Steering track rod end	49 Nm
Brake caliper to carrier Front	34 Nm
Brake caliper/carrier to hub Front	109 Nm
Brake caliper to carrier Rear	20 Nm
Brake caliper/carrier to hub Rear	59 Nm
ABS sensor Rear	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	500±30
Air conditioning oil group	PAG
Air conditioning oil Type	Dens Oil 8
Air conditioning oil quantity cm³	120
Air conditioning oil viscosity ISO	46

Frequently asked questions

What is the firing order of the Toyota MR2 1.8?

The firing order for the Toyota MR2 1.8 (2000–2006) is 1-3-4-2.

What spark plugs does the Toyota MR2 1.8 use?

The Toyota MR2 1.8 (2000–2006) uses Denso K16R-U11 spark plugs with a 1,1 mm electrode gap.

How much oil does the Toyota MR2 1.8 take?

The Toyota MR2 1.8 (2000–2006) takes 3.7 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 MR2 1.8?

Valve clearances for the Toyota MR2 1.8 (2000–2006) are 0,15-0,25 mm inlet and 0,25-0,35 mm exhaust, measured cold.

What is the cylinder head torque for the Toyota MR2 1.8?

The cylinder head bolts on the Toyota MR2 1.8 (2000–2006) are tightened in 3 stages: 25 Nm, then 49 Nm, then a final 90°.

What is the minimum brake disc thickness for the Toyota MR2 1.8?

Brake discs on the Toyota MR2 1.8 (2000–2006) are replaced at a minimum thickness of 18 mm (ventilated) front and 15 mm rear.