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The RMI's Technical Helpdesk see the following issues with the 308:

Diesel with particle filter system, a good add on to a service is to check the additive tank quantity. This is often missed and left until the warning light comes on, this is a good “add on” to a service. (RMI Technical subscribers can request the correct procedure for this operation from the helpline).

• Another good extra is to advise customers with the 1.6 Hdi to have an extra oil and filter change between services to reduce the possibility of premature turbo failure that is quite common on these engines.

• Check the rear brake pads for sticking when hot causing noise, there is a modified pad kit available.

The Peugeot 308 HDI is equipped with a sophisticated Injection System. To maintain the high accuracy of this Injection System throughout the Vehicle’s life, it utilises a system to compensate for variations in Injector fuel flows, called “IMA”.

DESCRIPTION AND OPERATING IMA

IMA coding increases the injector’s accuracy in delivering fuel for both input and out flows. This software enables each injector to be individually programmed according to the manufacturers guidelines. Each injector can then operate within tolerances as specified.

Sven Nielsen, Technical Director from MEYLE, says the Peugeot 308 has serious following problems:

1. Frequently worn out brake discs (11-15 521 0018/PD)

Problem:

Worn out brake discs affect the braking behavior of the vehicle. Rust may play a major role in this case.

MEYLE Solution: Thinking beyond – corrosion-resistant platinum brake disc for Peugeot (11-15 521 0018/PD)

The MEYLE solution is a brake disk covered with a specially developed zinc multi-layer coating.  The MEYLE PD coating simply provides better anti-corrosion protection.

Synchronous Belt Drive System (SBDS):

On some models, (including 1.6 HDI, DV6TED4), problems with rust inside the SBDS have been reported. In certain cases, this has been found to cause excessive noise inside the drive system. Gates, one of the world's largest manufacturers of belts and tensioners, points out that this requires extra vigilance on the part of the mechanic when making the diagnosis. Increased noise is often a symptom of an operational issue within the SBDS . For example, component wear, misalignment or incorrect tension of the belt are all likely sources of excessive SBDS noise. Careful inspection is required to rule out all alternative causes.

Auxiliary Belt Drive Systems (ABDS):

The technical team at Cambiare has identified a number of issues concerning the electrical system and engine management systems of the Peugeot 308 (07>).

Coil Failure or Split Breather Hose

Misfires are often diagnosed as coil failures, when in fact the real cause of the misfire is a split breather hose.  The best way to establish if a leaking breather hose is the cause is to perform a smoke test.  This is simple to do if you have the right equipment and if there is a leak in the system a smoke test will uncover a leak it in a matter of minutes.

When servicing a Peugeot 308, one area a garage should look at is oil sludge caused by contaminated injectors which reduces oil flow to critical moving parts. In many cases when the turbo has failed, the engine components such as the crank shaft has already been subject to wear. It is important when servicing these engines to inspect the oil filter when removed, if there are signs of oil sludge then the banjo bolt and gauze filter on the vacuum pump should be checked. If oil sludge is present, then there should be some manual cleaning of the crankcase including oil sump removal. The engine should then be flushed and oil and filter change carried out. It is also important to clean the fuel system regularly as the oil contamination begins with contaminated injectors.

The Peugeot 308 utilises an ‘active’ anti-lock braking system (ABS), which uses magnetic ‘poles’ built into an encoder fitted to the rear of the wheel bearing, brake drum or brake disc. The sensor has an integrated circuit, which amplifies the signal before feeding it back to the ECU. This system has the advantage that a signal (square wave) is generated regardless of whether the wheel is turning or not. This also means that the signal is far more accurate at lower wheel speeds.

Exol Lubricants’ Optima LSP 5W-30 oil is specifically-engineered for the Peugeot 308 and is particularly suited to vehicles equipped with anti-pollution systems such as diesel particulate filters (DPFs).

This is because the fully synthetic multigrade engine oil features low SAPS (sulphated ash, phosphorus and sulphur) additive technology, which prolongs the life of the DPF.

Offering excellent lubricant performance over extended drain intervals, the oil also maintains an engine’s cleanliness, leading to increased fuel efficiency.

Exol Optima LSP 5W-30 is also suitable for use in other types of diesel and petrol engines. It is available in bulk road tanker deliveries, 205 litre barrels and 25 litre drums.

There are a number of causes of A/C Compressor failure, however in most cases the problem will be caused by just one of a handful of common faults.  Here, DENSO Aftermarket Sales UK’s technical expert, Alan Povey, talks us through the easy way to identify these faults.

Most common failure cause – bad repair

Bad repair can be identified in a number of ways, and can manifest itself as numerous different faults.  Below are some of the most common faults relating to bad repair:

1.       Engine Oil

a.       Peugeot tend to favour a product like Comma Protech 5W30 for most of their vehicles. However, the very latest engines may carry different recommendations so you should always check our on-line VRN application guide at www.commaoil.com before fitting any product.