Bad fuel in a BMW 323i? Diesel in a Petrol BMW?

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BMW Fuel Drain


Putting Diesel in a Petrol BMW is a common mistake. And its remedy hinges on several things. In case you want to know what you need to do to fix it then stay with me.
Right here are the key factors to consider whenever choosing whether to get your car drained:

  1. How much Diesel have you put into the BMW, taking into consideration that the fuel tank capacity of your BMW 323i is in most cases roughly 65 litres?
    1. Hardly any Diesel, as little as 3.25 litres of Diesel in a Petrol 323i will most of the time not really be a huge problem. Experience has demonstrated to us that an amount under 3.25 litres (close to 5% of the whole fuel tank volume) is in many instances capable of being adequately diluted through totally filling up the rest of the tank with the correct fuel.
      It's rather rare to encounter a car or truck having problems with below 5% wrong fuel contamination. Please remember it is very rare - in no way impossible to encounter. You can get a number of cars that will not endure any level of contamination in the slightest.
    2. Between 3.25 and 6.5 litres of Diesel in the BMW (5 to 10%) is more of a 50/50 scenario. Our practical experience has proven that as many people get away with it as all those who don't. Whenever you are deciding on whether to risk it and just simply fill it up bear in mind that it is just like gambling everything on black - you've got a 50/50 possibility of it working.
    3. Anything over 6.5 litres of Diesel in your Petrol 323i should really straight away be drained since your probability of getting away with this level of contamination is very likely below one in 50 - really huge odds.
  2. Put Diesel in a Petrol BMW and drove it: Have you detected any performance concerns after putting the bad fuel in your 323i? If that's the case, have it removed no matter the volume of Diesel or even the contamination ratio. Still driving a vehicle that is beginning to suffer from the consequences of wrong fuel contamination can likely end up in more and more damage affecting the fuel system.
  3. Are you looking for reassurance?
    In that case get it removed. Regardless of the contamination percentage, there is invariably some amount of risk caused by running a Petrol engine on fuel contaminated with Diesel. Possible outcomes of driving a vehicle on the incorrect fuel include the engine refusing to start, running lumpy, loss in power, wearing of the high-pressure pump, worn or blocked injectors, and so on. These are a few of the commonest Diesel in Petrol symptoms, and should you notice any of them stop and have it drained right away.

Keep away from getting any jack-of-all-trades to attend your vehicle. We are BMW specialists and possess the credentials and expertise needed to make sure that you get back on the road with a minimum of hassle or trouble.

Put Diesel in a Petrol BMW

By mistake put Diesel in a Petrol BMW? Or perhaps even put contaminated fuel in your BMW 323i?

Contact us for Help & Recommendations

Call us and get sincere guidance and sensible help for your precise circumstances

We show up and drain it

We can go to you to perform the contaminated fuel retrieval & flush right there on scene

All done & You Get Going Again

As soon as we have completed you can get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain professionals in the UK, boasting nationwide coverage, for BMW motorists especially. We predominantly attend:

  • Unleaded petrol in your Diesel Car
  • Diesel in Unleaded Petrol Car
  • AdBlue contamination
  • Water contamination

We are BMW specialists and have successfully drained hundreds of Petrol BMW vehicles. Regardless of whether it is at the roadside, on a petrol station forecourt, or even at your home, we are able to get you on the road again.

The Process

The process of removing Diesel from a Petrol vehicle is generally similar for a large number of vehicle makes. Needless to say it may differ to some degree as every manufacturer has their unique fuel system. Nevertheless it still generally follows 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 Questions

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

In case you have any queries or need some assistance please Contact Us!
We are able to get you going 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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