The Peugeot 308 5-door hatchback, produced between 2017 and 2021, is a stylish and versatile compact car that strikes a balance between design, comfort, and efficiency. It is equipped with a variety of petrol, diesel, and hybrid engines, offering good fuel economy, a refined driving experience, and a range of technological features. The 308 appeals to a wide range of buyers, from families to young professionals looking for an economical yet sophisticated hatchback.
However, like any vehicle, the 2017-2021 Peugeot 308 comes with its share of common problems and known issues that prospective buyers should be aware of. In this article, we’ll take a detailed look at the most common problems experienced by owners of the Peugeot 308, explore what to look for when purchasing a used model, and discuss how expensive it is to own and maintain one.
Introduction: The Elegant Yet Practical Peugeot 308
The Peugeot 308 is known for its sleek design, comfortable interior, and efficient performance. With a premium feel compared to many of its rivals, this 5-door hatchback offers excellent build quality and a smooth ride, making it a popular choice in the compact car segment. Its impressive infotainment system, safety features, and modern engine options also add to its appeal.
But even the best cars come with potential drawbacks, and the Peugeot 308 has a few recurring issues that buyers should be mindful of. Whether you're considering a petrol, diesel, or hybrid version, it’s essential to understand the common problems that could arise over time.
Common Problems with the Peugeot 308 (2017-2021)
1. Timing Belt Wear (1.2 PureTech Petrol Engine)
One of the most significant issues that has affected the Peugeot 308, particularly models equipped with the 1.2-liter PureTech petrol engine, is timing belt wear. This engine uses a wet timing belt, which is submerged in oil. Over time, the belt can degrade and lose its structural integrity, leading to issues such as:
- Engine warning light appearing on the dashboard.
- Reduced performance or misfiring.
- Excessive noise from the engine, especially during idle.
If the timing belt starts to break down, it can cause severe engine damage, especially if it snaps. Peugeot has issued advisories regarding this problem, and it is recommended that the timing belt be inspected or replaced more frequently than initially stated in the service manual, particularly around the 60,000-mile mark.
2. EGR Valve Failure (Diesel Models)
For diesel variants of the Peugeot 308, one of the most common problems is EGR (Exhaust Gas Recirculation) valve failure. The EGR valve is a key component in controlling emissions, and over time, it can become clogged with soot and carbon deposits, leading to the following symptoms:
- Reduced engine performance, particularly during acceleration.
- Engine stalling or struggling at low speeds.
- Increased fuel consumption and emissions.
- Check engine light illuminating.
EGR valve issues are not uncommon in diesel cars, especially those driven in stop-start traffic, where the engine does not have a chance to burn off the carbon buildup properly. Cleaning or replacing the EGR valve is often the solution, but it can be an expensive repair if not caught early.
3. AdBlue System Malfunctions (Diesel Models)
In diesel-powered Peugeot 308s, the AdBlue system, which is responsible for reducing harmful emissions by injecting urea into the exhaust, can experience faults. Problems with the AdBlue system typically manifest as:
- Warning messages indicating the system needs service or a refill, even if the tank is full.
- Failure to start once the AdBlue tank is empty or if the system malfunctions.
- Excessive consumption of AdBlue, requiring more frequent refills.
These issues can sometimes be resolved by updating the car’s software, but in other cases, the AdBlue injector or sensor may need replacing. This can be a costly repair, and if ignored, the car may refuse to start as a fail-safe measure once the AdBlue system fails.
4. Clutch and Flywheel Issues (Manual Models)
Owners of manual transmission models have reported clutch and flywheel problems, particularly as the car accumulates higher mileage. The dual-mass flywheel (DMF), which is designed to reduce vibrations in the drivetrain, can wear out over time, leading to:
- Shuddering or juddering when pulling away in first gear.
- Slipping clutch, where engine revs increase without a corresponding increase in speed.
- Unusual noises from the transmission area, especially during gear changes or under load.
Clutch and flywheel replacement is a fairly common repair in manual cars, but it can be expensive due to the labor-intensive nature of the job.
5. Infotainment System Glitches
While the Peugeot 308’s infotainment system is one of its selling points, some owners have reported software glitches that affect its operation. Common complaints include:
- Slow response times when using the touchscreen.
- Freezing or crashing of the system, requiring a restart.
- Bluetooth connectivity issues, particularly with pairing and maintaining a connection with smartphones.
- Inaccurate GPS navigation, including incorrect routes or failure to lock onto satellites.
These issues are often resolved through software updates, but they can be frustrating for owners, especially if the system frequently malfunctions during use.
6. Suspension Wear and Noises
As with many compact cars, the Peugeot 308 can develop suspension issues over time, particularly involving components like the shock absorbers, bushings, and anti-roll bar links. Symptoms of worn suspension components include:
- Clunking or knocking noises when driving over bumps or uneven surfaces.
- Excessive body roll when cornering.
- Uneven tire wear, indicating misalignment or worn suspension parts.
While suspension issues are often a result of regular wear and tear, they can affect the car’s ride comfort and handling if not addressed promptly.
What to Look for When Buying a Peugeot 308 (2017-2021)
If you’re considering buying a used Peugeot 308 from this generation, it’s important to carry out a thorough inspection to avoid purchasing a vehicle with hidden problems. Here are some key things to look for:
- Service History: Ensure the car has a full service history, with particular attention to the timing belt replacement schedule for petrol models and regular AdBlue system maintenance for diesel variants.
- Engine Performance: During a test drive, pay attention to how the engine performs, especially when accelerating. Look out for any warning lights on the dashboard, as these could indicate issues with the EGR valve or AdBlue system.
- Suspension Condition: Listen for any unusual noises from the suspension when driving over bumps. Clunking or knocking sounds could indicate worn suspension components.
- Infotainment System: Test the infotainment system thoroughly to ensure it operates smoothly and that all features, such as Bluetooth and navigation, work as expected.
- Clutch and Gearbox: If considering a manual model, make sure the clutch operates smoothly and doesn’t slip. Unusual vibrations or noises could point to clutch or flywheel wear.
How Expensive is It to Own a Peugeot 308 (2017-2021)?
The cost of owning a Peugeot 308 can vary depending on the engine type, driving habits, and the car’s overall condition. Here are some factors to consider:
- Fuel Economy: The 308 is generally fuel-efficient, with diesel models offering better fuel economy, particularly on long motorway drives. Petrol models are more suited to city driving but can consume more fuel if driven aggressively.
- Insurance Costs: Insurance premiums for the Peugeot 308 are relatively affordable, though costs will vary based on the driver’s history and the specific model (petrol, diesel, or hybrid).
- Maintenance and Repairs: Routine maintenance costs, such as oil changes, brake replacements, and tire rotations, are in line with most compact cars. However, repairs related to the timing belt, AdBlue system, or clutch and flywheel can be more expensive.
- Depreciation: The Peugeot 308 holds its value reasonably well compared to other hatchbacks, but like all cars, it will depreciate over time. Diesel models may depreciate faster due to the growing shift towards petrol and electric vehicles.
Conclusion
The Peugeot 308 5-door (2017-2021) offers a great balance of style, comfort, and efficiency, making it a solid choice for those looking for a practical compact car. However, it’s essential to be aware of the common problems that can arise, such as timing belt wear, EGR valve issues, and AdBlue system malfunctions, particularly in petrol and diesel models.
When purchasing a used Peugeot 308, it’s crucial to check the service history, inspect the engine and suspension components, and ensure the infotainment system is functioning correctly. While ownership costs are generally affordable, unexpected repairs related to the timing belt, clutch, or AdBlue system can add to the long-term expenses. With proper care and attention to maintenance, the Peugeot 308 can provide a rewarding and enjoyable driving experience.