Peugeot 308: common problems and points to watch

The Peugeot 308 is a popular compact hatchback known for its modern looks and efficient engines, but owners and potential buyers need to be well informed about some recurring technical problems. Knowing about common faults helps you when buying a used 308 and prevents unpleasant surprises during ownership. Curious which points of attention apply to this French model?

Reliability compared with rivals

The Peugeot 308 scores from average to reasonable in reliability rankings, but lags behind rivals such as the Toyota Corolla and Volkswagen Golf. Many owners appreciate the refined driving characteristics and modern interior, but report issues with the drivetrain and electronics. The scores vary widely by generation and engine type.

The first generation (2007–2013) has the most complaints, especially concerning the 1.6 THP engine and electrical systems. The second generation (2013–2021) brought improvements, but also new issues with the 1.2 PureTech engine. The third generation (from 2021) is more modern and technically advanced, but still relatively new to make a solid judgement on reliability.

If you are unsure about a specific model, you can consult information sources such as Peugeot car problems (in Dutch: autoproblemen Peugeot), where you will find a broad overview of known technical issues by make and model.

1.2 PureTech: timing belt demands close attention

The 1.2 PureTech three-cylinder turbo engine is very common in the 308 from 2013 onwards and is known for its frugality and acceptable performance. However, this engine has one major point of attention: the wet timing belt. This belt runs in the engine oil bath and can, over time, weaken, fray or snap.

A defective timing belt leads to serious engine damage because valves and pistons come into contact with each other. Symptoms include:

• Metallic noises when starting or at higher revs
• Engine failure while driving
• Sudden increase in oil consumption
• Contaminated engine oil with black particles

Peugeot has introduced improved timing sets in various batches, but the problem still occurs in older examples. When buying, check whether the timing belt has been replaced recently and whether this was done according to the latest specifications. Ask for proof of servicing and pay attention to oil quality.

1.6 THP: timing chain requires preventive maintenance

The 1.6 THP engine (often found in models from 2007 to around 2015) delivers solid performance, but is known for problems with the timing chain. This chain stretches due to wear, causing the engine to run poorly or even cut out. Typical signs are:

• Rattling noise when starting, especially with a cold engine
• Loss of power and rough running
• Engine warning light on the dashboard

The cause is often a combination of insufficient lubrication, overly long service intervals and poorer quality components. Replacing the timing chain, including tensioners and guides, is expensive and can run to several thousand euros. Owners advise replacing the chain preventively at around 100,000 kilometres, especially on cars with irregular servicing.

Make sure you use high-quality engine oil and stick to the prescribed change intervals. This significantly extends the life of the timing chain.

Transmission: automatic gearboxes cause complaints

The 308 is available with manual and automatic transmissions. The manual gearboxes generally give few problems, although some owners report slow or notchy gear changes. This is often due to worn clutch components or poorly adjusted cables.

The automatic gearboxes, particularly the 6-speed automatic and later the 8-speed EAT8, are more prone to faults. Common complaints include:

• Hesitation when changing gear or delayed response
• Vibrations or juddering during acceleration
• Warning messages on the dashboard relating to the transmission
• In some cases the gearbox refuses to change gear or remains in limp-home mode

The causes range from software faults to mechanical wear. Some issues can be resolved with a software update at the dealer. In more serious cases, overhaul or replacement is required. When buying, have the transmission thoroughly tested, especially on cars with high mileage.

Electronics and infotainment: faults occur regularly

The Peugeot 308 has a modern electronic system with touchscreen, sensors and advanced driver assistance systems. This brings a certain vulnerability with it. Owners regularly report problems with the infotainment system, where the screen freezes, fails to respond or spontaneously restarts.

Other electronic faults that occur include:

• Parking sensors giving false alerts or cutting out
• Reversing camera not working consistently
• Malfunctions in driver aids such as cruise control or lane assist
• Starting problems due to incorrect signals from sensors

Many of these complaints are linked to software updates that Peugeot makes available. Ask the dealer whether all relevant updates have been carried out. Sometimes disconnecting the battery briefly and reinitialising the electronics helps, but this is not a structural solution.

During test drives, check all functions of the infotainment system and the sensors thoroughly. Watch out for warning messages on the dashboard that may indicate deeper electronic problems.

Chassis and suspension: noises and wear

The 308’s chassis is generally solid, but owners regularly report complaints about noises and wear to suspension components. These problems occur mainly in older models or cars with higher mileage. Typical complaints are:

• Creaking or knocking noises over potholes or bumps
• Wear to bushes and rubbers in the control arms
• Defective shock absorbers that reduce comfort
• Uneven tyre wear due to incorrect alignment

These problems affect driving comfort and, in some cases, safety. Worn suspension parts can worsen road holding and make the steering response less direct. When buying, have a garage check the suspension for play and wear.

Regular maintenance of the chassis extends its lifespan. Check the rubbers and bushes annually and replace them if there are visible cracks or wear. This prevents higher repair costs later on.

Diesel particulate filter and other points of attention

Diesel versions of the 308, such as the 1.5 BlueHDI, have a diesel particulate filter (DPF) that periodically regenerates to burn off accumulated soot particles. With mainly short trips, the filter can become clogged, leading to faults. Symptoms include loss of power, rough running and warning messages on the dashboard.

Regeneration takes place at higher speeds and during longer journeys. Therefore, regularly drive longer stretches on the motorway to keep the DPF clean. When it is completely blocked, professional cleaning or replacement is required, which can be costly.

Other, less frequent, points of attention include:

• Interior quality: upholstery working loose or creaking noises in the dashboard
• Air conditioning that does not cool properly due to leaks or a defective compressor
• Coolant leaks in older models

When buying, check the condition of the interior for signs of wear and test the air conditioning thoroughly. Small issues can indicate cars that have generally been neglected.

Practical maintenance tips for a longer lifespan

Good maintenance prevents many of the problems mentioned and extends the life of your 308. A few practical tips:

• Follow the service intervals strictly and use high-quality engine oil that meets Peugeot’s specifications
• Check the engine oil regularly for colour and consistency, especially on the 1.2 PureTech
• Regularly drive longer distances to keep the engine and DPF working properly
• Keep software updates up to date via the dealer to minimise electronic faults
• Inspect the chassis annually for wear and replace parts in good time
• Test the transmission regularly and have a diagnostic check carried out if in doubt

Preventive maintenance saves considerable repair costs and increases your car’s reliability. Invest in a good service history; this also raises the resale value later on.

Buying a used 308: what to look out for

When buying a used Peugeot 308 there are specific points that deserve extra attention. This helps you limit risks and make a well-considered choice. Check the following carefully:

• Ask for the full service history and check whether the timing belt or timing chain has been replaced
• Test the engine from cold for any unusual noises
• Take a longer test drive and watch for gearbox problems and vibrations
• Check all electronic systems, including sensors and infotainment
• Have a garage run a diagnostic check to uncover hidden fault codes
• Inspect the chassis for wear and check tyre wear for irregularities
• Ask about past problems and repairs

Avoid cars without a service history or with unclear background. The extra investment in a thorough pre-purchase inspection almost always pays off.

Weighing it up: is the Peugeot 308 reliable enough?

Are you considering a Peugeot 308? Then, before you buy, arrange a thorough technical inspection at an independent garage. Ask specifically about the condition of the timing belt or timing chain, the transmission and the electronic system. Check whether all relevant software updates have been installed and ask the seller about known issues and repairs carried out.

Budget structurally after purchase for preventive maintenance: change the engine oil according to schedule, have the chassis checked annually and regularly drive longer trips to keep the engine and DPF healthy. If you are unsure about the technical condition, take out a short-term warranty or opt for a more reliable alternative such as the Toyota Corolla or Volkswagen Golf.

Keep the service history fully up to date and document all repairs carried out. This increases the value at resale and gives you insight into recurring problems. With this approach you minimise risks and increase the chance of many years of trouble-free motoring.