Contaminated fuel in a Audi TT Quattro? Diesel in your Petrol Audi?

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Audi Fuel Drain


Putting Diesel in a Petrol Audi is a well-known problem. And its remedy is based on an assortment of things. If you want to find out what you have to do about it then read on.
Let us discuss the most crucial variables to consider when making a decision whether or not to have it drained:

  1. Exactly how much Diesel have you put in to the Audi, taking into account that the fuel capacity of your Audi TT Quattro is in most cases about 60 litres?
    1. A small quantity of Diesel, less than 3 litres of Diesel in a Petrol TT Quattro will in most cases not be a huge problem. Experience has shown us that an amount less than 3 litres (approximately 5% of the whole fuel tank) is generally able to be sufficiently diluted by wholly topping up the remainder of the tank with the appropriate fuel.
      It is highly uncommon to find a vehicle having difficulties with under 5% incorrect fuel contamination. Please remember it's uncommon - in no way impossible to find. There are actually a number of automobiles that won't stand any level of fuel contamination whatsoever.
    2. Between 3 and 6 litres of Diesel in the Audi (from 5 to 10%) is really a 50/50 situation. Our expertise demonstrates that as many people get away with it as those people who break down. When trying to decide whether or not to risk it and simply fill it up remember that it is the same as betting your car on black - you've got a 50/50 possibility of it working out.
    3. Anything above 6 litres of Diesel in your Petrol TT Quattro must promptly be removed seeing that your likelihood of getting away with that level of contamination is almost certainly lower than one in fifty - truly long odds.
  2. Put some Diesel in a Petrol Audi and drove it: Have you noted any kind of performance concerns ever since putting the incorrect fuel in your TT Quattro? If you have, have it emptied irrespective of the volume of Diesel or even the contamination ratio. Still driving a vehicle that is already beginning to suffer the consequences of fuel contamination will probably only end up in even more harm being done to your fuel system components.
  3. Would you like assurance?
    Then get it drained. Whatever the contamination percentage, there is invariably a certain level of threat linked with operating a Petrol motor on Petrol contaminated with Diesel. Likely consequences of driving on the wrong fuel can include the motor not starting, running lumpy, lack of power, degradation of the high-pressure pump, worn or clogged injectors, etc. These are some of the most typical Diesel in Petrol symptoms, and in the event that you notice any of them stop driving and get it removed right away.

Do not just have any jack-of-all-trades to try to repair your vehicle. We are Audi specialists and possess the accreditation and knowledge necessary to make certain that you are back on the road with minimum hassle or worry.

Put Diesel in a Petrol Audi

Mistakenly put Diesel in a Petrol Audi? Or possibly even put contaminated fuel in your Audi TT Quattro?

Contact us for Help & Advice

Contact us and obtain reliable guidance and practical assistance for your particular circumstances

We arrive and do a fuel drain

We are able to come to you to undertake the full contaminated fuel retrieval & purge right there on scene

Once carried out You Get Moving Once again

When we have finished you are able to get back moving and get on with your day

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain professionals in the UK, having national service, for Audi motorists particularly. We typically fix:

  • Unleaded petrol in a Diesel Auto
  • Diesel in your Unleaded Petrol Vehicle
  • AdBlue contamination
  • Water contamination

We are Audi specialists and have successfully drained hundreds of Petrol Audi vehicles. Whether or not it is at the roadside, on a filling station forecourt, or even at your house, we are able to get you going once again.

The Procedure

The procedure of extracting Diesel from a Petrol vehicle is fundamentally similar for the vast majority of motor vehicles. Of course it can vary to some extent as each brand has their own fuel system. However it still fundamentally follows the following principles:

Petrol in Diesel Audi

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Audi

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Audi

Vehicle Restart

Get the car up and running again

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Diesel in Petrol FAQs

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

I put Diesel in a Petrol 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 Petrol car on Diesel 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 Diesel can I get away with in a Petrol 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 Petrol 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

If you have any queries or require help please Contact Us!
We are able to get you going once again.

24 hour Audi Helpline

0333 366 0103

Our Business Office

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

Weekdays: 9am to 5pm

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