Incorrect fuel in your Audi Q7 TDI Quattro? Petrol in your Diesel Audi?

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Audi Fuel Drain


Filling Petrol in a Diesel Audi is a fairly typical mistake. And exactly what you have to do about it hinges on several things. In the event that you would like to find out what you ought to do to sort it out then keep on reading.
Listed here are the most important variables to take into consideration when choosing whether to get the car drained:

  1. How much Petrol have you put into the Audi, keeping in mind that the fuel tank capacity of your Audi Q7 TDI Quattro is most likely approximately 100 litres?
    1. A small quantity of Petrol, something like 5 litres of Petrol in a Diesel Q7 TDI Quattro will generally not necessarily be a significant problem. Experience has proven to us that anything under 5 litres (which is almost 5% of the entire fuel tank volume) is in many instances able to be completely diluted by means of totally topping the remainder of the tank with Diesel.
      It is relatively rare to encounter a motor vehicle experiencing difficulties with lower than 5% incorrect fuel contamination. Bear in mind that it's unusual - definitely not impossible to encounter. There are actually some motor vehicles that don't stand any degree of fuel contamination in the slightest.
    2. Between 5 and 10 litres of Petrol in the Audi (from 5 to 10%) is really a 50/50 situation. Our expertise has shown us that as many motorists get away with this as those people who break down. Whenever you are trying to decide whether or not to chance it and basically top it up consider that it is just like gambling it all on black - you will have a 50/50 chance of it working out.
    3. Anything over 10 litres of Petrol in a Diesel Q7 TDI Quattro ought to straight away be drained seeing that your probability of succeeding with that amount of contamination is in all likelihood lower than one in 50 - definitely big odds.
  2. Put Petrol in a Diesel Audi and drove it: Have you observed any kind of performance difficulties as a result of putting the bad fuel in the Q7 TDI Quattro? In that case, get it removed regardless of the quantity of Petrol or even the contamination percentage. Continuing to run running a car that is already starting to suffer the consequences of wrong fuel contamination can definitely be responsible for increasing amounts of harm affecting the fuel system components.
  3. Would you like peace of mind?
    Then get it removed. Whatever the contamination ratio, there is inevitably some amount of threat connected to operating a Diesel vehicle on fuel contaminated with the wrong fuel. Likely outcomes of driving a vehicle on the wrong fuel include the motor not starting, running lumpy, reduced power, wearing of the high-pressure pump, worn out or blocked injectors, etc. These are some of the most typical Petrol in Diesel signs or symptoms, and should you notice any of them then stop and have it removed right now.

Don't just have any unqualified mechanic to try to drain your car. We are Audi specialists and have the skills and expertise needed to ensure that you are back on the road with a minimum of hassle or trouble.

Put Petrol in a Diesel Audi

Inadvertently put Petrol in a Diesel Audi? Or perhaps even put contaminated fuel in your Audi Q7 TDI Quattro?

Contact us for Assistance & Guidance

Give us a call and get straightforward recommendations and sensible help for your particular circumstance

We show up and drain it

We can go to you to carry out the fuel drain & purge right there on scene

Once completed You Get Moving Again

As soon as we are done you are able to get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain authorities in the UK, having national cover, for Audi motorists particularly. We primarily deal with:

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

We are Audi specialists and have successfully drained hundreds of Diesel Audi vehicles. No matter if it's roadside, on a filling station forecourt, or even at your house, we can get you moving again.

The Procedure

The system of removing Petrol from a Diesel vehicle is generally similar for virtually all motor vehicles. Obviously it does differ slightly as every brand has their unique distinct fuel system. Even so it still generally observes the below 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 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.

Contact Us

In case you have any questions or require our assistance please Contact Us!
We are able to get you moving 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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