Contaminated fuel in a Audi A8 TDI? Petrol in your Diesel Audi?

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Audi Fuel Drain


Filling up with Petrol in a Diesel Audi is a regularly occurring error. And its solution is dependent upon several things. Assuming you would like to find out what it is advisable to do to fix it then read on.
Listed here are the key variables to take into consideration whenever determining whether to get it drained:

  1. What amount of Petrol did you put in the Audi, considering that the fuel tank capacity of the Audi A8 TDI is probably about 90 litres?
    1. A tiny quantity of Petrol, as little as 4.5 litres of Petrol in a Diesel A8 TDI will in most cases not be a huge problem. Experience has demonstrated to us that quantities less than 4.5 litres (which is almost 5% of the overall fuel tank volume) is sometimes capable of being adequately diluted by means of wholly filling the remainder of the tank with Diesel.
      It is rather uncommon to encounter an automobile suffering from difficulties with below 5% wrong fuel contamination. Please remember it is unusual - in no way impossible to encounter. You can get some cars that will not endure any amount of fuel contamination whatsoever.
    2. Between 4.5 and 9 litres of Petrol in the Audi (from 5 to 10%) is a 50/50 scenario. Our experience has confirmed that as many motorists get away with this as those people who don't. Any time you're deciding whether or not to risk it and just fill it up consider that it is the same as betting all of it on black - you have a 50/50 possibility of it working out.
    3. Anything in excess of 9 litres of Petrol in your Diesel A8 TDI really should right away be drained as your likelihood of driving with this amount of contamination is more than likely less than one in fifty - seriously big odds.
  2. Put some Petrol in a Diesel Audi and drove it: Have you detected any performance issues after putting the wrong fuel in your A8 TDI? If so, have it removed no matter the amount of Petrol or even the contamination ratio. Continuing to drive running a car that is currently starting to suffer from the consequences of fuel contamination will probably likely end up in more harm affecting the fuel system.
  3. Would you like reassurance?
    You should get it emptied. Regardless of the contamination percentage, there is inevitably a certain level of threat linked with running a Diesel vehicle on fuel contaminated with the wrong fuel. Probable consequences of driving on the wrong fuel can include the motor not starting, running unevenly, lack of power, degradation of the high-pressure pump, damaged or bunged injectors, and the like. These are a few of the most typical Petrol in Diesel symptoms, and should you notice any of them then stop driving and have it drained asap.

Keep away from getting any jack-of-all-trades to try to repair your vehicle. We are Audi experts and possess the qualifications and knowledge needed to make certain you get back on the road with a minimum of hassle or worry.

Put Petrol in a Diesel Audi

Inadvertently put Petrol in a Diesel Audi? Or perhaps even put contaminated fuel in your Audi A8 TDI?

Give us a call for Assistance & Guidance

Call us and receive genuine recommendations and sensible assistance for your particular circumstance

We come out and do the fuel drain

We can come to you to perform the complete contaminated fuel retrieval & clean right there on scene

Once done You Get Moving Again

As soon as we have finished you should be able to get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain authorities in the UK, having national coverage, for Audi motorists particularly. We predominantly attend:

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

We are Audi specialists and have successfully drained hundreds of Diesel Audi vehicles. Whether or not it's roadside, on a station forecourt, or even at home, we are able to get you on the road once again.

The Procedure

The method of draining Petrol from a Diesel vehicle is fundamentally exactly the same for the majority of vehicle makes. Naturally it can vary to some extent as every brand has their particular different fuel system. Nevertheless it still observes the following guidelines:

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.

Get in Touch

In the event that you have any questions or need our help please Call us!
We can get you on the road 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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