The problem results in diesel fuel filters becoming blocked by the formation of a gel-like substance in the diesel. This can block the fuel filter thus starving the engine of fuel and may result in the engine not starting or in a loss of power. The amber engine malfunction indicator light might also show.

The problem affects diesel cars but is not specific to any particular vehicle age or make. Data suggests the issue is more prevalent in eastern parts of England and Scotland, with the greatest concentration of breakdowns occurring in the North East, and can arise from diesel purchased from any type of fuel retailer.

Whilst the primary cause of the issue is still under investigation, one of the areas receiving closest scrutiny is the up to 7% biofuel content which by EU law has to be added to all road diesel.

According to the BBC, the Department for Transport said Transport Minister Baroness Kramer had asked the industry to resolve the issue as quickly as possible.

Parties including the fuel industry and motor manufacturers are working together to help find the root cause of the issue along with the RAC, which says that it has seen a resurgence of related breakdowns this winter following a lull in the summer.

In November the RAC attended almost 600 such incidents, the highest number of blocked fuel filters so far this winter – aggregated across the whole UK car parc this would equate to around 2,500 vehicles.

RAC technical director David Bizley said: ‘Having diesel fuel filters changed at the right service intervals is clearly important because a failure to do so can lead to starving the engine of fuel; but from the number of breakdowns we have attended this cannot be the primary cause.

‘The industry is working extremely hard to find a solution which is good news for motorists. Neither the fuel producers, nor retailers, nor the motor manufacturers saw this problem coming last year. The current specifications for all fuel sold at the pump have been developed over many years and continue to evolve based on a combination of test programmes and field experience.

‘Specifications have been further tightened since the problem was first reported, but it’s clear that we still don’t fully understand all aspects of the underlying cause.

‘The fact these issues are far more prevalent in the east than the west suggests that supplies to these areas have characteristics that are not common to the whole country. We urge the fuel industry to continue its efforts to identify the source of the problem and find a permanent solution to it.’