Brakes
1 documented fault — symptoms, causes and workshop fixes.
Brakes squeal
Overview
- Affects
- All models.
Cause
Replacement brake pads fitted without anti-squeal shims.
Repair
- Ensure brake pad anti-squeal shims are fitted.
- Replacement shims available separately.
Data: Motorwise Workshop. Bulletin 1.
Clutch & gearbox
2 documented faults — symptoms, causes and workshop fixes.
Squeaking noise when clutch pedal depressed or released
Symptoms
Erratic clutch pedal action. Gears difficult to engage.
Cause
Faulty clutch master cylinder.
Repair
- Fit modified clutch master cylinder.
Data: Motorwise Workshop. Bulletin 2.
Air conditioning (AC) inefficient
Cause
AC compressor clutch relay faulty.
Repair
- Replace AC compressor clutch relay.
Data: Motorwise Workshop. Bulletin 3.
Glossary
Technical terms used in this guide.
- AC
- Air conditioning — the system that cools the cabin
- Relay
- An electrically operated switch
Frequently asked questions
What are the common faults with the Toyota Avensis 1.8?
This guide contains three workshop bulletins for the Toyota Avensis 1.8. Of these, two concern the clutch and gearbox and one the brakes. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Toyota Avensis 1.8 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 1.8 faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.