Bad fuel in a Audi A2 TDI? Petrol in a Diesel Audi?

We can help!
Call us: 0333 366 0103
Audi Fuel Drain


Filling up with Petrol in a Diesel Audi is a usual problem. And its remedy varies according to several factors. If you want to know what to do about it then stay with me.
Let us discuss the most crucial variables to consider when figuring out whether or not to have a fuel drain:

  1. Exactly how much Petrol did you put in to the Audi, taking into consideration that the fuel tank capacity of your Audi A2 TDI is normally around 34 litres?
    1. A small amount of Petrol, something like 1 litres of Petrol in a Diesel A2 TDI will in most cases not necessarily be a major problem. Experience has proven to us that an amount less than 1 litres (which is roughly 5% of the entire fuel tank capacity) is frequently able to be completely diluted by means of thoroughly filling the tank with Diesel.
      It's rather unusual to find a motor vehicle having issues because of below 5% wrong fuel contamination. Be aware that it is unusual - definitely not impossible to find. There are actually certain cars that don't stand any degree of fuel contamination whatsoever.
    2. In between 1 and 2 litres of Petrol in the Audi (5 to 10%) is a 50/50 situation. Our working experience has revealed that as many motorists get away with it as those who don't. When figuring out whether to risk it and just fill it up recognise that it is the same thing as betting your car on black - you have a 50/50 chance of it working.
    3. Anything more than 2 litres of Petrol in a Diesel A2 TDI should immediately be drained out since your probability of succeeding with this amount of contamination is undoubtedly below one in fifty - genuinely long odds.
  2. Put Petrol in a Diesel Audi and drove it: Have you noted any performance issues as a result of putting the incorrect fuel in your A2 TDI? If you have, have it removed regardless of the quantity of Petrol or even the contamination ratio. Continually running a car that is already beginning to suffer from the consequences of fuel contamination will likely result in increasing amounts of damage affecting your fuel system components.
  3. Would you like security?
    In that case get it emptied. Regardless of the contamination percentage, there is invariably some degree of threat linked with operating a Diesel motor on Diesel contaminated with Petrol. Probable implications of driving on the incorrect fuel include the motor refusing to start, running unevenly, losing power, degradation of the high-pressure pump, worn out or clogged injectors, and so on. These are some of the most frequently seen Petrol in Diesel symptoms, and should you detect any of them stop and have it drained immediately.

Refrain from getting any unqualified mechanic to attend your vehicle. We are Audi specialists and hold the skills and working experience required to make sure that you are back on the road with minimum hassle or worry.

Put Petrol in a Diesel Audi

Accidentally put Petrol in a Diesel Audi? Or even put contaminated fuel in your Audi A2 TDI?

Give us a call for Assistance & Advice

Contact us and get genuine guidance and sensible help for your exact circumstances

We show up and do a fuel drain

We would go to you to undertake the full contaminated fuel removal & clean right there on scene

All done & You Get Going Again

Once we are done you can get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain specialists in the UK, offering nationwide coverage, for Audi motorists in particular. We predominantly attend to:

  • Unleaded petrol in Diesel Car
  • Diesel in an Unleaded Petrol Vehicle
  • AdBlue contamination
  • Water contamination

We are Audi specialists and have successfully drained thousands of Diesel Audi vehicles. Even if it's roadside, on a station forecourt, or even at your house, we can get you on the road once again.

The Process

The process of getting rid of Petrol from a Diesel car is generally identical for most vehicle makes. Needless to say it may vary to some degree as each brand has their particular different fuel system. Having said that it still essentially observes the following principles:

Petrol in Diesel Audi

Fuel Drain

Empty the Fuel Tank

View more
Wrong Fuel Drain Audi

System Flush

Clean out the fuel lines & pumps

View more
Petrol in Diesel Drain Audi

Vehicle Restart

Get the car up and running again

View more


Hours a Day


Days a Week





Our Partners

Just some of the few people we work with to bring you the best petrol in diesel service possible

Petrol in Diesel Questions

When someone has put Petrol in a Diesel car they have a few very common questions. So we have compiled a list of the most Frequently Asked Questions for you

I put Petrol in a Diesel car and drove it. What do I do?


Turn off the car as soon as possible and call us. Continuing to run a vehicle on the wrong fuel can potentially damage it. We will be able to give you advice and assistance based on your circumstances

Will driving a Diesel car on Petrol cause damage to it?


It can. However, if the problem is caught and remedied quickly the risks will be minimal. Of the 1,500 vehicles we attend every month, less than 0.5% have suffered and substantial damage requiring parts replacement.

How much Petrol can I get away with in a Diesel car?


The safe answer is none. However you might be able to get away with a very low contamination ratio. That being said, we always highly recommend draining anything over a 5% contamination ratio asap.

I know about petrol in diesel, but what about Super Unleaded?


Putting Super Unleaded, or Shell V-Power, BP Ultimate Unleaded, etc, will have the exact same effect as putting regular unleaded petrol in your diesel car and will need to be drained out and flushed.

Will getting you to do a fuel drain void my warranty?


No! The EU Block Exemption Regulations clearly state that "the work can be carried out by as long as that garage uses manufacturer approved parts and correctly follows the manufacturer's service schedule."

Can I top it up with Diesel and add some 2-stroke oil?


This might work on some vehicles in some cases, but in the majority on instances it won't and you risk damaging the Lambda sensors as well as fuel pump and injectors, just as a regular misfuel.

Call us

In the event that you have any queries or require some help please Contact Us!
We are able to get you on the road once again.

24/7 Audi Helpline

0333 366 0103

Our Business Office

Fuel Fixer Ltd, Linx House, 147 London Road, East Grinstead, RH19 1ET

Weekdays: 9am to 5pm

Important Info

Fully Insured

VAT Registered

APEX Certified


Fully Mobile

Professionally Trained