No Chance of Engine Damage When Filling Up 2011 Audi TDIs

Putting petrol into a diesel engine can be a costly mistake, and Audi says that in recent years it has become a more common mistake, as diesel engines become increasingly quiet and smooth.

There's always a risk when lending or sharing your car that this can happen; those that run vehicle fleets will also be familiar with this particular problem.

The 2011 TDI models of the Audi A4, A5 and Q5 will be the first to feature a redesigned fuel filler neck that prevents fuelling with petrol.

How does it work? Diesel pump nozzles are larger than petrol nozzles, so the new neck has an internal flap linked to contact points that are only triggered by the larger diesel nozzles.

The smaller petrol nozzles don't touch the contact points, so the flap stays shut and the driver cannot put the nozzle into the tank; it hits the flap. Only a diesel nozzle will activate the contact points, opening the flap and allowing the nozzle to be fully inserted.

Audi will be rolling the system out across further models in the near future.

Guest post by Victoria Stubbs, Vindis Group. Vindis are new and used Audi dealers for all models, including Used Audi A5