Contaminated fuel in a Audi A4 TDI quattro? Petrol in a Diesel Audi?

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Audi Fuel Drain


Filling Petrol in a Diesel Audi is a usual problem. And its remedy will depend on various things. In the event that you would like to find out what to do to sort it out then keep reading.
Listed below are the key factors to be aware of whenever making a decision whether to get a fuel drain:

  1. Exactly how much Petrol did you put into the Audi, bearing in mind that the fuel capacity of your Audi A4 TDI quattro is normally about 60 litres?
    1. Hardly any Petrol, something like 3 litres of Petrol in a Diesel A4 TDI quattro will quite often not necessarily be a major problem. Experience has taught us that anything less than 3 litres (which is roughly 5% of the overall fuel tank capacity) is in many instances able to be adequately diluted by wholly topping up the rest of the tank with the appropriate fuel.
      It is relatively rare to come across a motor vehicle experiencing difficulties due to below 5% wrong fuel contamination. Remember that it is very uncommon - definitely not impossible to encounter. There are a number of vehicles that don't stand any amount of contamination in the slightest.
    2. Between 3 and 6 litres of Petrol in the Audi (from 5 to 10%) is really a 50/50 condition. Our expertise has confirmed that as many motorists get away with this as those people who break down. Any time you are figuring out whether or not to risk it and just simply fill it up bear in mind that it is very much like betting your car on black - you will have a 50/50 possibility of it working out.
    3. Anything over 6 litres of Petrol in a Diesel A4 TDI quattro should right away be drained out since your likelihood of succeeding with that amount of contamination is certainly lower than one in 50 - extremely huge odds.
  2. Put Petrol in a Diesel Audi and drove it: Have you detected any performance concerns as a result of putting the wrong fuel in the A4 TDI quattro? If that's the case, have it drained irrespective of the amount of Petrol or even the contamination percentage. Continually running an automobile that is now starting to suffer the effects of wrong fuel contamination will likely end up in increasing amounts of damage affecting the fuel system.
  3. Would you like security?
    Simply get it drained. Regardless of the contamination percentage, there is invariably a certain level of threat connected to driving a Diesel vehicle on Diesel contaminated with Petrol. Likely consequences of driving on the wrong fuel include things like the engine not starting, running unevenly, loss in power, degradation of the high-pressure pump, worn out or blocked injectors, and the like. These are some of the most common Petrol in Diesel signs or symptoms, and if you detect any of them then stop driving and get it removed right now.

Do not just get any unqualified mechanic to try to fix your vehicle. We are Audi experts and have got the accreditation and practical experience necessary to make certain that you are back on the road with minimal hassle or worry.

Put Petrol in a Diesel Audi

Unintentionally put Petrol in a Diesel Audi? Or perhaps even put contaminated fuel in your Audi A4 TDI quattro?

Call us for Help & Advice

Contact us and receive honest guidance and practical assistance for your specific circumstances

We show up and do a fuel drain

We are able to go to you to perform the contaminated fuel removal & flush there on scene

Once completed You Get Going Again

Once we have finished you can get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain professionals in the UK, boasting national cover, for Audi motorists especially. We primarily attend:

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

We are Audi specialists and have successfully drained hundreds of Diesel Audi vehicles. Even if it is at the roadside, on a filling station forecourt, or even at your house, we are able to get you on the road again.

The Procedure

The method of getting rid of Petrol from a Diesel car is fundamentally the same for most motor vehicles. As you can imagine it does vary slightly as each make has their own distinct fuel system. Nevertheless it still adheres to the following points:

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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Petrol in Diesel FAQs

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 case you have any questions or need some help please Call us!
We can get you going once again.

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0333 366 0103

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

Weekdays: 9am to 5pm

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