Engine & fuel system
2 documented faults — symptoms, causes and workshop fixes.
Engine difficult to start after standing for 3hours or more
Cause
Unsatisfactory design of injectors.
Repair
- Inspect production number on injectors If production number 0692, replace injectors.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| Injector | 23209-39145 | 4 |
Data: Motorwise Workshop. Bulletin 4.
Abnormal noise from engine when engine cranking
Overview
- Affects
- All models with 1ZR-FE/1ZR-FAE/2ZR-FE engine codes.
- Parts
- 1 part
Cause
Faulty starter motor.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Renew starter motor.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| Starter motor | 28100-0T060 | 1 |
Data: Motorwise Workshop. Bulletin 5.
Electrical & ignition
1 documented fault — symptoms, causes and workshop fixes.
Front passenger's seat belt warning lamp does not illuminate when seat is occupied
Overview
- Affects
- All models, →09/14.
- Remedy
- Fit new part
Cause
Faulty front passenger's seat occupation pressure sensor.
Repair
- Apply a load of 47-55 Kg to front passenger's seat.
- If front passenger's seat belt warning lamp does not illuminate: Fit new seat occupation pressure sensor.
Data: Motorwise Workshop. Bulletin 2.
Brakes
2 documented faults — symptoms, causes and workshop fixes.
Whistling noise from front of vehicle at constant speed between 45-75mph (70-120kph)
Overview
- Affects
- All models with 15 inch front brake discs.
- Remedy
- Fit modified part
- Parts
- 1 part
Cause
Unsatisfactory design of front brake pads.
Repair
- Remove front brake pads and inspect.
- If central slot not present in brake pad: Fit modified front brake pads.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| Front brake pad kit | 04465-02430 | 1 |
Data: Motorwise Workshop. Bulletin 1.
Rattling noise from front brakes over uneven surfaces
Cause
Unsatisfactory design of front brake caliper carrier.
Repair
- Fit modified front brake caliper carriers.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| Front brake caliper carrier | 47721-09560 | As required |
Data: Motorwise Workshop. Bulletin 3.
Body & trim
1 documented fault — symptoms, causes and workshop fixes.
Knocking noise when opening/closing front doors
Unsatisfactory design of front door check strap. Fix: fit a modified part.
Overview
- Affects
- All models, →10/16.
- Remedy
- Fit modified part
Repair steps
- Remove and discard front door check strap.
- Apply thread locking compound to door check strap retaining bolt.
- Fit modified door check strap.
- Tighten door check strap bolts to correct torque setting.
- Apply a light coating of grease to moving parts of door check strap mechanism.
- If necessary, repeat procedure for opposite side.
Parts
| Part | Part number | Qty |
|---|---|---|
| Door check strap | 68610-02241 | 1 |
Data: Motorwise Workshop. Bulletin 6.
Glossary
Technical terms used in this guide.
- Caliper
- The part that squeezes the brake pads onto the disc
Frequently asked questions
What are the common faults with the Toyota Corolla 1.8?
This guide contains six workshop bulletins for the Toyota Corolla 1.8. Of these, two concern the engine and fuel system and two the brakes. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Toyota Corolla 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 Corolla 1.8 faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.