Toyota2003–2009

Avensis 2.0: Common faults & known problems

Common faults & known problems

5 known faults documented in workshop bulletins. Of these, two concern the clutch and gearbox and one the engine and fuel system. Symptoms, causes, repair steps and part numbers are shown where supplied.

Technical specifications

Engine & fuel system

1 documented fault — symptoms, causes and workshop fixes.

Coolant loss

Affects All models: Engine code: 1AZ-FE, VIN →085291. Engine code: 1AZ-FSE, VIN →085291. Engine code: 2AZ-FSE, VIN →012207.Fit new part

Symptoms

Coolant leak from cylinder head gasket. Engine overheating.

Cause

Insufficient cylinder head bolt hole depth in engine block.

Repair

Fit new short engine assembly.

Parts3 parts

Parts listed in the bulletin
Part	Part number	Qty
Short engine assembly - 1AZ-FSE	11400-28251	1
Short engine assembly - 1AZ-FE	11400-28261	1
Short engine assembly - 2AZ-FSE	11400-28281	1

Data: Motorwise Workshop. Bulletin 3.

Steering

1 documented fault — symptoms, causes and workshop fixes.

ESP warning lamp illuminated

Incorrect calibration of steering angle sensor.

Overview

Affects: All models with electronic stability program (ESP).
Fault codes: C1288

Symptoms

Trouble code stored: C1288. Unable to program steering angle sensor.

Repair steps

Ensure steering in straight-ahead position.
Ensure steering angle sensor aligned with steering column.
Carry out steering angle sensor calibration.

Data: Motorwise Workshop. Bulletin 2.

Clutch & gearbox

2 documented faults — symptoms, causes and workshop fixes.

Squeaking noise when clutch pedal depressed or released

Affects rightHandAll models with manual transmission, →02/05. leftHandAll models with manual transmission, →03/05.Fit modified part

Symptoms

Erratic clutch pedal action. Gears difficult to engage.

Cause

Faulty clutch master cylinder.

Repair

Fit modified clutch master cylinder.

Data: Motorwise Workshop. Bulletin 1.

Air conditioning (AC) inefficient

Affects All models with air conditioning (AC).

Cause

AC compressor clutch relay faulty.

Repair

Replace AC compressor clutch relay.

Data: Motorwise Workshop. Bulletin 5.

Other

1 documented fault — symptoms, causes and workshop fixes.

Abnormal noise from auxiliary drive belt

Overview

Affects: All models with 1AZ-FE engine code.
Remedy: Fit new part

Cause

Faulty auxiliary drive belt tensioner.

Repair

Renew auxiliary drive belt tensioner.
Fit new auxiliary drive belt if necessary.

Data: Motorwise Workshop. Bulletin 4.

Glossary

Technical terms used in this guide.

VIN: Vehicle identification number — 17 characters, found at the base of the windscreen and on the V5C logbook
AC: Air conditioning — the system that cools the cabin
ESP: Electronic stability programme — brakes individual wheels to stop a skid
Relay: An electrically operated switch
Steering Angle Sensor: Tells the stability-control system which way the steering wheel is pointing
Trouble Code: A standardised fault code stored by a control module, read with a diagnostic tool
Auxiliary Drive Belt: The belt that drives the alternator, water pump, steering pump or air-conditioning compressor
Calibration: Setting a sensor or module so its readings match the real world
Head Gasket: The seal between the cylinder head and the engine block

Frequently asked questions

What are the common faults with the Toyota Avensis 2.0?

This guide contains five workshop bulletins for the Toyota Avensis 2.0. Of these, two concern the clutch and gearbox and one the engine and fuel system. Symptoms, causes, repair steps and part numbers are shown where supplied.

Does every Toyota Avensis 2.0 have these faults?

No. These are patterns documented across the model by workshops, not predictions for an individual vehicle. Where a fault applies only to certain vehicles or VIN ranges, that is listed with the fault.

Can I check for Toyota Avensis 2.0 faults myself?

Many of them. The documented symptoms can be seen, heard or felt during a test drive.