Mazda2007–2013Technical specifications

CX-7 2.3: Technical specifications

Workshop data for the 2.3-litre petrol (engine code L3 Turbo). 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 (L3 Turbo) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Mazda
Model: CX-7
Years: 2007–2013
Fuel: Petrol
Engine code: L3 Turbo

Performance & efficiency

Power: 191 kW (260 hp)
Engine size: 2,261 cc
Cylinders: 4 · DOHC
Compression ratio: 9.5:1
Fuel system: Mazda

Fluids & capacities

Engine oil (with the filter): 5.7 litres

All 130 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/DOHC
Capacity (Fiscal) cc	2261
Compression ratio :1	9,5
Suitable for unleaded petrol	Yes
Minimum octane rating RON	98
Ignition system Make	Mazda
Ignition system Description	Map-DI
Trigger location	Cam/Crankshaft
Fuel system Make	Mazda
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 Mazda CX-7 2.3 (2007–2013) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Mazda CX-7 2.3 (2007–2013) are 0,22-0,28 mm inlet and 0,27-0,33 mm exhaust, measured cold.

Valve clearance - INLET mm	0,22-0,28 cold
Valve clearance - EXHAUST mm	0,27-0,33 cold

Engine oil & fluids

Engine oil

The Mazda CX-7 2.3 (2007–2013) takes 5.7 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 2.6 litres. The specified oil is SAE 75W-80, with classification GL-4.

Transfer box

The transfer box has a listed capacity of 1.2 litres. The specified oil is SAE 80W-90, with classification GL-5.

Coolant

The listed total cooling-system capacity is 9.0 litres.

See the reference table for the complete coolant entries and their conditions.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range	➞45°C
Engine oil grade SAE	5W-30
Engine oil classification API/ACEA	SL/A3, A5
Ambient temperature range	-25°C➞45°C
Engine oil grade SAE	10W-40
Engine oil classification API/ACEA	SL/A3
Engine with filter(s) litres	5.7
Other lubricants and capacities
Manual transmission oil grade SAE	75W-80
Manual transmission oil classification	GL-4
Manual transmission litres	2.6
Automatic transmission fluid Type	JWS 3309
Automatic transmission (dry fill) litres	7.0
Differential oil grade - rear SAE	80W-90
Differential oil classification - rear	GL-5
Differential rear litres	1.0
Transfer box oil grade SAE	80W-90
Transfer box oil classification	GL-5
Transfer box litres	1.2
Coolant Type	Ethylene glycol
Cooling system - total capacity litres	9.0
Brake fluid Type	DOT 3/4
Power steering fluid Type	Dexron II
Power steering fluid litres	0.8-1.0

Brakes & wear limits

Brake disc thickness

Brake discs on the Mazda CX-7 2.3 (2007–2013) are replaced at a minimum thickness of 26 mm (ventilated) front and 16 mm rear.

Minimum disc thickness for replacement - ventilated Front	26 mm
Minimum disc thickness for replacement Rear	16 mm
Maximum drum diameter for replacement Rear	191 mm

Brake disc and drum dimensions

Disc thickness variation Front	0,01 mm
Disc thickness variation Rear	0,01 mm
Disc runout Front	0,05 mm
Disc runout Rear	0,10 mm
Minimum pad thickness Front	2 mm
Minimum pad thickness Rear	2 mm
Minimum shoe thickness Rear	1 mm
Parking brake travel No. of notches	2-5

Service & electrical

Battery

The Mazda CX-7 2.3 (2007–2013) uses a 12 V, 55 Ah battery.

Battery V/RC(Ah)	12 (55)

Tuning and emissions

Idle speed and ignition timing
Tuning conditions	—
Ignition timing - basic BTDC °Engine/rpm	10/700 Not adjustable
Ignition advance checks °Engine/rpm	ECM Controlled
Idle speed rpm	700±50 Not adjustable
Idle speed - alternative rpm	AT=625±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
Increased idle speed for CO test rpm	2500-3000
CO content at increased idle speed Vol. %	0,2
Lambda at increased idle λ	0,97-1,03

Starting and charging

Alternator output A/V/rpm	77/13,5/2500

Service checks and adjustments

Compression pressure bar	8,9-12,8
Oil pressure bar/rpm	3,0-5,5/3000
Radiator cap bar	1,13-1,42
Thermostat opens °C	80-84

Fuel system

System pressure bar	4,1-4,9
Engine coolant temperature (ECT) sensor Ohm/°C	3650-4020/80
Injector Ohm	1,0-1,2

Spark plugs

Spark plugs Original equipment	Mazda
Spark plug Type	L3K9 18 110A
Electrode gap mm	0,7-0,8

Tightening torques

Cylinder head
Cylinder head instructions	—
Maximum bolt length	146 mm
Tighten	7±4 Nm
Tighten	15±2 Nm
Tighten	45±2 Nm
Tighten	90°±2°
Tighten	90°±2°
Other engine tightening torques
Main bearings Renew bolts/nuts	No
Main bearings Stage 1	—
Main bearings
Big end bearings Renew bolts/nuts	—
View more information	—
Big end bearings
Big end bearings Stage 1	29±2 Nm
Big end bearings Stage 2	90°±10°
Oil pump to cylinder block	1)10±2 Nm 2)20±3 Nm
Sump bolts	20±3 Nm
Sump drain bolt	36±5 Nm
Flywheel/driveplate	156±5 Nm
Bolts/nuts
Clutch pressure plate	29±4 Nm
Crankshaft pulley/damper centre bolt	100±4 Nm+90°±3°
Camshaft sprocket/gear	72±3 Nm
Camshaft carrier/cap	1)7±2 Nm 2)16±1 Nm
Camshaft/rocker cover	9±1 Nm
Inlet manifold to cylinder head	20±3 Nm
Exhaust manifold to cylinder head	54±10 Nm
Exhaust downpipe to manifold	45±6 Nm
Water pump	10±2 Nm
Spark plugs	12±2 Nm
Fuel rail	20±3 Nm
Crankshaft position (CKP) sensor/engine speed (RPM) sensor	7±1 Nm
Camshaft position (CMP) sensor	7±1 Nm
Engine coolant temperature (ECT) sensor	12±2 Nm
Lambda sensor (Oxygen)	39±10 Nm
Knock sensor (KS)	20±4 Nm
Engine oil pressure switch	15±3 Nm
Oil filter	—
Chassis tightening torques
Front hub	255±20 Nm
Bolts/nuts
Rear hub	255±20 Nm
Rear hub - wheel bearing housing bolts	109±11 Nm
Steering wheel	44±5 Nm
Steering rack/box mounting	90±15 Nm
Steering track rod end	53±6 Nm
Brake disc to hub Front	12±2 Nm
Brake caliper to carrier Front	88±5 Nm
Brake caliper/carrier to hub Front	117±10 Nm
Brake disc to hub Rear	12±2 Nm
Brake caliper to carrier Rear	26±5 Nm
Brake caliper/carrier to hub Rear	90±11 Nm
Back plate to hub Rear	109±11 Nm
ABS sensor Front	11 Nm
ABS sensor Rear	11 Nm
Road wheels	103±15 Nm

Air conditioning

Refrigerant quantity
No. of AC service connectors	2
Air conditioning restrictor type	Expansion valve
Compressor clutch/magnetic coupling	Yes
Air conditioning refrigerant Type	R134a
Air conditioning refrigerant quantity grams	500±25
Air conditioning oil group	PAG
Air conditioning oil Type	Atmos GU 10
Air conditioning oil quantity cm³	150
Oil quantity
Air conditioning oil viscosity ISO	46

Frequently asked questions

What is the firing order of the Mazda CX-7 2.3?

The firing order for the Mazda CX-7 2.3 (2007–2013) is 1-3-4-2.

How much oil does the Mazda CX-7 2.3 take?

The Mazda CX-7 2.3 (2007–2013) takes 5.7 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 Mazda CX-7 2.3?

Valve clearances for the Mazda CX-7 2.3 (2007–2013) are 0,22-0,28 mm inlet and 0,27-0,33 mm exhaust, measured cold.

What is the minimum brake disc thickness for the Mazda CX-7 2.3?

Brake discs on the Mazda CX-7 2.3 (2007–2013) are replaced at a minimum thickness of 26 mm (ventilated) front and 16 mm rear.

What battery does the Mazda CX-7 2.3 use?

The Mazda CX-7 2.3 (2007–2013) uses a 12 V, 55 Ah battery.