The VW Group has added further fuel to the flames in its ongoing diesel saga as it has announced that it will be halting deliveries of current A6 and A7 models equipped with V6 diesel engines. An internal review has revealed irregularities in the engine-management software of these motors and the deliveries will be on standby as regulators conduct an inquiry into the case. Unlike in previous cases where older diesel engines were the subject of the scandal, the ones now affected are the latest Euro-6 versions.

This is undoubtedly going to raise questions about how group chief Rupert Stadler is handling the internal restructuring at the company and revelation of these irregularities saw share prices drop slightly. Earlier this year, the Audi A8 sedans equipped with V8 diesel motors were recalled, while similar recalls may still take place as further tests are carried out on all the diesel drivetrain combinations in the VW groups vast fleet. It is not all bad news though as record first quarter sales and strong profits show that consumer confidence is returning. However continued issues with diesel emissions compliance do not bode well in the long term.

With regards to the current situation, German auto magazine Der Spiegel reported that the software installed in these V6 diesels allegedly reduces the frequency of the urea injections required to neutralize harmful emissions. Audi did not elaborate on this but did say that a software update would be provided in line with the findings by the authorities. Globally, approximately 60,000 vehicles are affected, more than half in Germany. Happily, this time, no US vehicles are affected.