The Opel Astra, a popular hatchback in Australia, has its fair share of problems. While it's known for its style and performance, owners have reported several common issues. This article explores these problems, from engine troubles to electrical faults, and provides insights into what to watch out for.
Coolant level sensors in Opel Astras often give false low readings, causing unnecessary alarms.
Transmission bearing failures are a known issue, leading to symptoms like unusual noises and reduced vehicle performance.
Engine performance problems, including hesitation and damage, are commonly reported by Astra owners.
Several recall notices have been issued for Astra vehicles, particularly those manufactured in the UK and Poland.
Common electrical issues in the Astra include starting problems, alternator failures, and air flow sensor malfunctions.
The Opel Astra has been known to have problems with its coolant level sensor. Many owners have reported persistent false readings indicating low coolant levels, even when the coolant is at the correct level. This issue has been particularly frustrating for those who bought their Astra from Adelaide Opel, as the problem often persisted despite multiple service attempts by Holden after Opel left Australia.
Owners frequently encounter false alerts about low coolant levels. This can be alarming and inconvenient, especially when the vehicle is otherwise functioning normally. The issue often stems from a faulty sensor attached to the coolant box, which may need replacement to resolve the problem.
To address the false readings, some owners have opted to replace the entire coolant box, as the sensor is integrated into it. This solution has proven effective for many, especially in regions where Opel parts are readily available, such as the UK.
Servicing the Opel Astra in Australia can be challenging due to the limited availability of parts and expertise. After Opel's exit from the Australian market, Holden took over the servicing of these vehicles. However, many owners have found that the problem with the coolant level sensor persists despite multiple service attempts. This has led some to seek solutions independently, often sourcing parts from overseas markets where the Astra is more common.
For Opel Astra J vehicles with 1.4- and 1.6-litre turbocharged petrol engines, the bearing on top of the sixth gear in the M32 manual transmission is prone to wear and failure. Signs of a worn bearing include:
Whining noises, especially in gears 1, 2, 5, and 6.
Clutch slip, which can indicate an impending bearing collapse.
Gearstick feedback issues due to the selector ring.
If the worn bearing is not replaced, the outer bearing race can start to spin and wear the casing. Eventually, this can punch a hole in the casing, the bearing may collapse, the rollers can release and cause damage to the gears – if this occurs, the entire transmission has to be replaced. Owners have described clutch slip as a warning that the bearing is about to collapse.
Eco Torque has not seen a bearing failure with the revised end case and recommends that a revised end case be fitted when repairing the M32 transmission. Repair options include:
Full bearing rebuild to resolve the issue.
Fitting a revised end case to prevent future failures.
It's crucial to address these issues promptly to avoid more extensive damage and costly repairs.
Many Opel Astra owners have reported poor engine performance. This issue often manifests as the car not running smoothly, sometimes only operating on three pistons. This can make it hard to start the engine and can significantly affect the driving experience.
Another common problem is engine hesitation. Drivers have noted that their vehicles struggle to gain speed and may not exceed 3000 rpm. This hesitation can be particularly noticeable when accelerating deeply, making the car feel stuck and unresponsive.
Engine damage is a serious concern for Opel Astra owners. Some have experienced issues with sensors and other components, leading to significant engine problems. For example, failures in the forced induction system or issues with the throttle body can cause the engine to not work as it should, even after replacing parts like the oxygen sensor or EGR valve.
It's crucial to address these engine performance problems promptly to avoid further damage and ensure a smooth driving experience.
Opel Astra models made in the UK and Poland have been subject to several recalls. These recalls are often due to manufacturing defects that could potentially cause harm. It's crucial to check for recalls before buying a car, especially if it was made in these countries.
One of the significant recalls involved issues with child restraint systems. The problem was that the owner's manual did not include important information about child restraint loading precautions. This omission could lead to improper installation, posing a risk to child passengers.
The recalls generally affect specific Vehicle Identification Numbers (VINs). If you own an Opel Astra, you should verify if your car's VIN falls within the affected range. This can usually be done through the manufacturer's website or by contacting a local dealer.
When buying a used car, always check for any outstanding recalls. This is especially important for models known to have had multiple recalls, like the Opel Astra.
One of the most common electrical issues with the Opel Astra is starting problems. Sometimes, the car would start and then cut out, leaving you stranded. This could be due to a faulty ignition key contact. A simple solution might be to use a spray for electrical connections and apply it between the wires and in the ignition lock cylinder.
Alternator failures are another frequent issue. When the alternator fails, it can cause the battery to drain quickly, leaving the car without power. This problem often requires the alternator to be replaced to restore proper function.
Air flow sensor malfunctions can lead to poor engine performance. The sensor might give incorrect readings, causing the engine to run inefficiently. Replacing the faulty sensor is usually the best solution to this problem.
The Opel Astra, known as the Holden Astra in Australia, did not sell well due to unsustainably poor sales amid quality and reliability issues.
Throttle Body Issues
One common problem with the Opel Astra is related to the throttle body. Cracks can develop in the Positive Crankcase Ventilation (PCV) pressure regulator valve, causing a noise similar to a slowly deflating balloon. This sound can be quite alarming and may occur during driving, reversing, or changing gears.
Many owners have reported various noise issues with their Astra. For instance, the suspension can creak, especially when crossing larger bumps at low speeds. This is often due to a faulty lower suspension arm bush, which needs to be replaced. Additionally, some drivers have noticed strange and rough noises from the engine, even after repairs.
Vibrations during operation are another concern for Astra owners. These vibrations can be felt throughout the vehicle and are often more noticeable when hitting potholes or driving on uneven surfaces. The ride can become quite uncomfortable, and the noise from these vibrations can be unsettling.
If you experience any of these issues, it's important to address them promptly to ensure your vehicle's safety and performance. For more information, you can refer to a guide on filing complaints about car safety issues to ensure compliance with standards and potential recalls.
In summary, the Opel Astra has its fair share of issues that Australian owners should be aware of. From persistent coolant level warnings to transmission bearing failures, these problems can be frustrating. However, with proper maintenance and timely repairs, many of these issues can be managed effectively. It's important to stay informed and address any problems as soon as they arise to ensure your Astra remains reliable on the road. Always consult with a qualified mechanic to get the best advice for your specific situation.
This is a common problem with the Opel Astra. The coolant level sensor often gives false readings. Replacing the sensor or the coolant box can help fix this issue.
If your Astra has worn transmission bearings, you might hear unusual noises, feel vibrations, or notice poor performance. It's important to get it checked by a mechanic.
Regular maintenance like oil changes, using high-quality fuel, and cleaning or replacing air philtres can help improve engine performance.
Yes, there have been recalls for Astra models made in the UK and Poland. These were due to missing information in the owner's manual about child restraint precautions.
Starting problems can be due to a faulty battery, alternator, or starter motor. It's best to have a professional diagnose and fix the issue.
Noise and vibrations can be caused by throttle body issues, worn bearings, or other mechanical problems. Have a mechanic inspect your vehicle to find the exact cause.
