Peugeot 308 Common Problems and Solutions
If your 308 is having problems starting when the engine is cold, it is usually down to a fault with the ECU. Does this video below sound anything like your problem?
There is a software update available, which should solve the problem.
Car pulling to the left side
If your car has started pulling to the left side a bit, this is common on the 308. It is caused by the uneven front tyre wear, which happens due to roundabouts and near side road damage.
You can change the front tyres, or first, try swapping the front tyres around which might remedy the situation.
Anti pollution warning message
If you have noticed that the Anti-pollution warning message has come up on the dashboard, then you have a problem with the Peugeot Emission Filter (PEF). This filter is responsible for removing any harmful particles, from the exhaust system.
You may need to replace the PEF, but first try taking the car out on either a motorway or A-road, driving at about 60mph for at least 15 minutes, in order to burn off these particles. The build up occurs mostly in cars which are driven around town, as the cars do not reach high enough speeds, in order to heat up enough to burn the particles. If this does not work, then you will need to fit a replacement PEF.
The 308 can have some issues with the turbo, which can be identified by some of the following symptoms: You may see blue or black smoke coming from the exhaust, or have a real loss of power, or even a real whistling noise coming from the top of the engine. If you have any of these symptoms, then you have a problem with the turbo in your car.
You will need to get the turbo replaced, in order to resolve this issue. Make sure you replace the EGR valve at the same time, as this can be the main cause of turbo problems. However, this could be quite a costly repair.