Wrong fuel in a BMW 335d? Petrol in a Diesel BMW?

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BMW Fuel Drain


Putting Petrol in a Diesel BMW is a common problem. And what you have to do about it is based on various factors. Assuming you would like to find out what you ought to do to fix it then please read on.
Listed here the most important variables to take into consideration when figuring out whether to get a fuel drain:

  1. How much Petrol did you put in the BMW, considering that the fuel capacity of your BMW 335d is probably around 61 litres?
    1. A modest quantity of Petrol, something like 3.05 litres of Petrol in a Diesel 335d will more often than not not necessarily be a significant problem. Experience has taught us that an amount less than 3.05 litres (which is close to 5% of the overall fuel tank volume) is frequently able to be sufficiently diluted simply by completely filling the rest of the tank with the right fuel.
      It's quite uncommon to encounter a car having difficulties with under 5% incorrect fuel contamination. Remember that it is very rare - definitely not impossible to encounter. You will discover certain motor vehicles that won't stand any quantity of fuel contamination at all.
    2. Anywhere between 3.05 and 6.1 litres of Petrol in the BMW (from 5 to 10%) is really a 50/50 situation. Our expertise has demonstrated that as many motorists get away with this as those who break down. Whenever you are deciding on whether to risk it and just simply fill it up recognise that it is much like gambling everything on black - you have a 50/50 possibility of it being ok.
    3. Anything in excess of 6.1 litres of Petrol in a Diesel 335d should really straightaway be drained because your likelihood of driving with this level of contamination is almost certainly lower than one in fifty - definitely long odds.
  2. Put Petrol in a Diesel BMW and drove it: Have you seen any kind of performance concerns after putting the wrong fuel in the 335d? If that's the case, get it drained no matter the amount of Petrol or even the contamination percentage. Proceeding to run driving a car that is starting to suffer the consequences of fuel contamination will probably just bring about more and more harm affecting the fuel system.
  3. Would you like assurance?
    You should get it removed. No matter the contamination percentage, there is inevitably some degree of risk affiliated with driving a Diesel engine on Diesel contaminated with the wrong fuel. Probable consequences of driving a car on the incorrect fuel include the motor not starting, running lumpy, lack of power, wearing of the high-pressure pump, damaged or clogged injectors, etc. These are some of the most typical Petrol in Diesel signs or symptoms, and in the event that you observe any of them stop driving and have it drained right away.

Do not simply have any jack-of-all-trades to try to drain your automobile. We are BMW specialists and possess the skills and practical experience required to ensure that you get back on the road with minimum hassle or worry.

Put Petrol in a Diesel BMW

By mistake put Petrol in a Diesel BMW? Or even put contaminated fuel in your BMW 335d?

Call us for Help & Advice

Call us and obtain sincere recommendations and sensible help for your specific situation

We arrive and drain it

We would reach you to carry out the complete contaminated fuel removal & cleanse there on scene

Once performed You Get Moving Again

As soon as we have completed you should be able to get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain professionals in the UK, having national coverage, for BMW motorists especially. We mostly fix:

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

We are BMW specialists and have successfully drained hundreds of Diesel BMW vehicles. Whether or not it's roadside, on a petrol station forecourt, or even at your home, we can get you going once again.

The Procedure

The system of getting rid of Petrol from a Diesel vehicle is essentially the same for the majority of motor vehicles. As you can imagine it can vary to some extent as each make has their own different fuel system. Nevertheless it still essentially observes the below guidelines:

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 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

If you have any questions or need assistance please Contact Us!
We can get you going again.

24/7 BMW Helpline

0333 366 0103

Our Corporate Office

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


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