Contaminated fuel in your Audi Q3 Quattro? Diesel in a Petrol Audi?

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Audi Fuel Drain


Filling up with Diesel in a Petrol Audi is a well-known problem. And exactly what you should do about it hinges on an assortment of factors. Assuming you want to find out what to do about it then stay with me.
Listed here are the most important factors to think about when deciding on whether to get it drained:

  1. How much Diesel did you put in to the Audi, considering that the fuel capacity of your Audi Q3 Quattro is usually roughly 64 litres?
    1. A modest amount of Diesel, as little as 3.2 litres of Diesel in a Petrol Q3 Quattro will in most cases not be a big problem. Experience has proven to us that anything less than 3.2 litres (5% of the entire fuel tank) is quite often able to be completely diluted through entirely topping up the remainder of the tank with Petrol.
      It's very unusual to encounter a vehicle having issues with lower than 5% wrong fuel contamination. Keep in mind that it is infrequent - not impossible to find. There are a number of cars that will not stand any amount of contamination whatsoever.
    2. Anywhere between 3.2 and 6.4 litres of Diesel in the Audi (5 to 10%) is really a 50/50 scenario. Our working experience has shown that as many drivers get away with this as those who don't. Any time you are trying to decide whether or not to chance it and simply fill it up remember that it is the same as gambling all of it on black - you've got a 50/50 chance of it working.
    3. Anything above 6.4 litres of Diesel in a Petrol Q3 Quattro should straight away be drained as your probability of driving with this amount of contamination is probably below one in fifty - extremely long odds.
  2. Put Diesel in a Petrol Audi and drove it: Have you noticed any performance problems as a result of putting the bad fuel in your Q3 Quattro? If you have, have it emptied no matter the quantity of Diesel or the contamination ratio. Still running a car that is now beginning to suffer from the consequences of fuel contamination can definitely be responsible for even more harm affecting the fuel system.
  3. Are you interested in peace of mind?
    You should get it drained. Regardless of contamination percentage, there is inevitably some degree of danger affiliated with running a Petrol engine on fuel contaminated with the incorrect fuel. Likely results of driving a vehicle on the incorrect fuel normally include the engine not starting, running lumpy, lack of power, degradation of the high-pressure pump, damaged or clogged injectors, and the like. These are a few of the commonest Diesel in Petrol warning signs, and should you notice any of them stop and have it drained right now.

Don't just get any unqualified mechanic to attend your automobile. We are Audi specialists and have the accreditation and knowledge necessary to make certain that you are back on the road with little hassle or worry.

Put Diesel in a Petrol Audi

Mistakenly put Diesel in a Petrol Audi? Or even put contaminated fuel in your Audi Q3 Quattro?

Give us a call for Assistance & Recommendations

Give us a call and receive sincere advice and practical assistance for your precise circumstance

We show up and do a fuel drain

We are able to come to you to perform the contaminated fuel retrieval & cleanse there on scene

Once carried out You Get Going Again

As soon as we have completed you are able to get back on the road and get on with your trip

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain experts in the UK, offering countrywide cover, for Audi motorists in particular. We primarily attend:

  • Unleaded petrol in Diesel Auto
  • Diesel in Unleaded Petrol Vehicle
  • AdBlue fuel contamination
  • Water fuel contamination

We are Audi specialists and have successfully drained hundreds of Petrol Audi vehicles. Whether it's roadside, on a filling station forecourt, or even at your home, we can get you moving again.

The Procedure

The procedure of draining Diesel from a Petrol car is basically identical for the vast majority of vehicle makes. Naturally it can vary a bit as each brand has their own distinct fuel system. Even so it still essentially follows 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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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.

Get in Touch

In case you have any concerns or need assistance 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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