Bad fuel in a BMW 530xi? Diesel in your Petrol BMW?

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BMW Fuel Drain


Putting Diesel in a Petrol BMW is a well-known mistake to make. And its solution is dependent upon various factors. In case you would like to know what to do to sort it out then keep reading.
Listed here are the most important variables to keep in mind when deciding whether or not to have your car drained:

  1. What level of Diesel have you put in the BMW, taking into account that the fuel capacity of the BMW 530xi is most likely approximately 70 litres?
    1. Hardly any Diesel, something like 3.5 litres of Diesel in a Petrol 530xi will in most situations not be a huge problem. Experience has demonstrated to us that quantities less than 3.5 litres (almost 5% of the overall fuel tank) is in many instances able to be completely diluted through totally topping the remainder of the tank with Petrol.
      It is pretty uncommon to come across a vehicle going through problems because of below 5% wrong fuel contamination. Please remember it's infrequent - in no way impossible to find. There are a few motor vehicles that won't stand any degree of fuel contamination whatsoever.
    2. Somewhere between 3.5 and 7 litres of Diesel in the BMW (5 to 10%) is really a 50/50 situation. Our working experience has shown us that as many people get away with this as all those who don't. Whenever you are figuring out whether or not to risk it and simply top it up consider that it is much like betting your car on black - you have got a 50/50 possibility of it working out.
    3. Anything over 7 litres of Diesel in a Petrol 530xi really should right away be drained since your likelihood of getting away with this amount of contamination is almost certainly below one in 50 - truly big odds.
  2. Put Diesel in a Petrol BMW and drove it: Have you observed any kind of performance issues ever since putting the incorrect fuel in the 530xi? In that case, have it emptied regardless of the volume of Diesel or the contamination percentage. Proceeding to drive running a vehicle that is beginning to suffer from the effects of wrong fuel contamination will typically be responsible for more and more damage being done to your fuel system.
  3. Do you need security?
    You should get it emptied. Whatever the contamination ratio, there is always some extent of risk linked with running a Petrol motor on Petrol contaminated with the wrong fuel. Possible results of driving on the wrong fuel include the motor refusing to start, running unevenly, loss of power, degradation of the high-pressure pump, worn out or clogged injectors, and so forth. These are several of the most frequently seen Diesel in Petrol warning signs, and in the event that you notice any of them stop and get it drained as soon as possible.

Don't just have any jack-of-all-trades to try to repair your car. We are BMW experts and hold the qualifications and experience needed to make certain you get back on the road with no hassle or worry.

Put Diesel in a Petrol BMW

Accidentally put Diesel in a Petrol BMW? Or possibly even put contaminated fuel in your BMW 530xi?

Call us for Assistance & Advice

Call us and get straightforward recommendations and sensible assistance for your exact circumstances

We show up and drain it

We would go to you to perform the full contaminated fuel drain & cleanse there on scene

Once completed You Get Going Once again

When we are done you can get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain authorities in the UK, having nationwide cover, for BMW motorists particularly. We mainly fix:

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

We are BMW specialists and have successfully drained thousands of Petrol BMW vehicles. Whether it's at the roadside, on a filling station forecourt, or even at your house, we can get you going once again.

The Process

The system of draining Diesel from a Petrol vehicle is generally identical for the vast majority of vehicle makes. Needless to say it can differ to some extent as each brand has their particular distinct fuel system. Even so it still essentially observes the below 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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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.

Call us

If you have any enquiries or need some assistance please Contact Us!
We can get you moving again.

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0333 366 0103

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

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