Wrong fuel in a BMW 320xd? Petrol in your Diesel BMW?

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BMW Fuel Drain


Filling up with Petrol in a Diesel BMW is a regularly occurring mistake to make. And what you want to do about it will depend on several different factors. If you want to find out what to do about this then keep on reading.
Let us discuss the most crucial factors to think about whenever determining whether to get it drained:

  1. Exactly how much Petrol have you put into the BMW, considering that the fuel tank capacity of your BMW 320xd is probably about 61 litres?
    1. A tiny quantity of Petrol, something like 3.05 litres of Petrol in a Diesel 320xd will generally not be a big problem. Experience has proven to us that an amount under 3.05 litres (5% of the overall fuel tank capacity) is often able to be adequately diluted by entirely filling the rest of the tank with Diesel.
      It is very unusual to encounter a car or truck experiencing difficulties because of under 5% incorrect fuel contamination. Be aware that it is infrequent - not impossible to find. There are some cars that will not endure any quantity of contamination in the slightest.
    2. Anywhere between 3.05 and 6.1 litres of Petrol in the BMW (5 to 10%) is a 50/50 condition. Our practical experience has shown us that as many motorists get away with this as all those who break down. When you are figuring out whether to chance it and simply fill it up remember that it is much like gambling your car on black - you will have a 50/50 possibility of it working.
    3. Anything above 6.1 litres of Petrol in your Diesel 320xd should really straightaway be removed seeing as your probability of succeeding with this level of contamination is probably less than one in fifty - genuinely long odds.
  2. Put some Petrol in a Diesel BMW and drove it: Have you observed any performance issues ever since putting the incorrect fuel in the 320xd? If so, get it drained regardless of the volume of Petrol or even the contamination ratio. Still driving a car that is now starting to suffer from the effect of wrong fuel contamination will probably only end up in more and more damage being done to the fuel system components.
  3. Are you interested in reassurance?
    Simply get it drained. Whatever the contamination percentage, there is invariably some degree of risk linked with running a Diesel engine on Diesel contaminated with the wrong fuel. Possible final outcomes of driving a car on the wrong fuel can include the engine not starting, running lumpy, loss of power, degradation of the high-pressure pump, worn out or bunged injectors, and so on. These are several of the most common Petrol in Diesel symptoms, and if you notice any of them stop and have it drained as soon as possible.

Keep away from getting any unqualified mechanic to attend your car. We are BMW specialists and have the accreditation and expertise needed to ensure that you are back on the road with minimal hassle or worry.

Put Petrol in a Diesel BMW

Mistakenly put Petrol in a Diesel BMW? Or perhaps even put contaminated fuel in your BMW 320xd?

Call us for Help & Recommendations

Call us and obtain reliable recommendations and sensible help for your exact circumstance

We arrive and drain it

We are able to come to you to carry out the contaminated fuel removal & cleanse there on scene

All done & You Get Moving Once again

When we have finished you should be able to get back on the road and get on with your trip

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain authorities in the UK, boasting nationwide cover, for BMW motorists especially. We mostly attend:

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

We are BMW specialists and have successfully drained thousands of Diesel BMW vehicles. Even if it's roadside, on a station forecourt, or even at your house, we can get you on the road again.

The Procedure

The technique of removing Petrol from a Diesel car is fundamentally the same for most vehicles. Needless to say it can vary slightly as each brand has their unique fuel system. Having said that it still generally adheres to the following points:

Petrol in Diesel BMW

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain BMW

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain BMW

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.

Contact Us

In case you have any concerns or want assistance please Contact Us!
We are able to get you moving once again.

24 hour BMW Helpline

0333 366 0103

Our Corporate Office

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


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