Bad fuel in a BMW 330xi? Diesel in your Petrol BMW?

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BMW Fuel Drain


Filling up with Diesel in a Petrol BMW is a fairly typical mistake to make. And what you should do about it depends on an assortment of things. If you want to know what to do to sort it out then stay with me.
These are the main variables to keep in mind whenever deciding on whether or not to have a fuel drain:

  1. How much Diesel did you put in the BMW, bearing in mind that the fuel tank capacity of the BMW 330xi is most likely approximately 63 litres?
    1. A modest quantity of Diesel, something like 3.15 litres of Diesel in a Petrol 330xi will typically not really be a significant problem. Experience has shown us that quantities less than 3.15 litres (which is almost 5% of the entire fuel tank volume) is quite often able to be adequately diluted through thoroughly topping the tank with Petrol.
      It's extremely rare to come across a vehicle suffering from difficulties because of below 5% wrong fuel contamination. Please remember it is very infrequently found - in no way impossible to encounter. You will discover some vehicles that don't stand any amount of contamination whatsoever.
    2. Between 3.15 and 6.3 litres of Diesel in the BMW (5 to 10%) is really a 50/50 condition. Our experience has shown us that as many motorists get away with this as those people who don't. Any time you're trying to decide whether or not to chance it and just fill it up recognise that it is just like betting your car on black - you've got a 50/50 possibility of it working out.
    3. Anything more than 6.3 litres of Diesel in your Petrol 330xi should as soon as possible be drained seeing as your probability of succeeding with this amount of contamination is certainly lower than one in fifty - truly huge odds.
  2. Put Diesel in a Petrol BMW and drove it: Have you spotted any performance difficulties after putting the incorrect fuel in the 330xi? If that's the case, have it removed regardless of the volume of Diesel or the contamination ratio. Proceeding to drive running a vehicle that is already starting to suffer from the consequences of wrong fuel contamination will probably definitely end up in progressively more damage being done to the fuel system.
  3. Are you interested in security?
    In that case get it drained. Regardless of the contamination ratio, there is always a certain level of danger connected to driving a Petrol motor on Petrol contaminated with the incorrect fuel. Possible final outcomes of driving a car on the incorrect fuel include things like the engine refusing to start, running unevenly, decrease in power, wearing of the high-pressure pump, worn out or bunged injectors, and the like. These are a few of the most common Diesel in Petrol warning signs, and should you detect any of them then stop driving and get it drained immediately.

Don't just have any unqualified mechanic to try to drain your automobile. We are BMW specialists and have got the qualifications and knowledge needed to make certain that you get back on the road with minimum hassle or worry.

Put Diesel in a Petrol BMW

Inadvertently put Diesel in a Petrol BMW? Or perhaps even put contaminated fuel in your BMW 330xi?

Give us a call for Assistance & Recommendations

Give us a call and obtain sincere advice and sensible help for your specific situation

We come out and drain it

We would reach you to do the fuel drain & flush there on scene

All done & You Get Moving Once again

When we have finished you will be able to get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain authorities in the UK, boasting nationwide coverage, for BMW motorists particularly. We primarily 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 hundreds of Petrol BMW vehicles. No matter if it's at the roadside, on a station forecourt, or even at your house, we are able to get you moving once again.

The Process

The technique of draining Diesel from a Petrol vehicle is fundamentally the same for virtually all motor vehicles. As you can imagine it does differ to some extent as every brand has their unique fuel system. Even so it still generally observes the following principles:

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

If you have any questions or need our help 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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