Contaminated fuel in a BMW M coupe? Diesel in a Petrol BMW?

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BMW Fuel Drain


Filling up with Diesel in a Petrol BMW is a regular error. And exactly what you need to do about it depends upon several factors. If perhaps you want to know what you need to do to fix it then please read on.
Right here are the most important variables to take into consideration whenever deciding on whether to get the car drained:

  1. What amount of Diesel did you put in the BMW, bearing in mind that the fuel tank capacity of your BMW M coupe is probably about 51 litres?
    1. A tiny quantity of Diesel, something like 2.55 litres of Diesel in a Petrol M coupe will normally not be a big problem. Experience has proven to us that an amount under 2.55 litres (which is close to 5% of the overall fuel tank capacity) is very often able to be adequately diluted simply by completely topping up the rest of the tank with Petrol.
      It is very unusual to encounter a vehicle having problems with less than 5% wrong fuel contamination. Keep in mind that it is uncommon - in no way impossible to find. There are actually certain motor vehicles that don't endure any quantity of fuel contamination whatsoever.
    2. Anywhere between 2.55 and 5.1 litres of Diesel in the BMW (from 5 to 10%) is more of a 50/50 condition. Our experience has shown that as many people get away with this as all those who break down. Whenever figuring out whether or not to risk it and basically fill it up recognise that it is the same as gambling all of it on black - you will have a 50/50 chance of it being ok.
    3. Anything in excess of 5.1 litres of Diesel in your Petrol M coupe ought to straightaway be drained out since your probability of getting away with this quantity of contamination is probably less than one in 50 - extremely big odds.
  2. Put some Diesel in a Petrol BMW and drove it: Have you noticed any kind of performance difficulties after putting the wrong fuel in your M coupe? In that case, have it emptied regardless of the quantity of Diesel or even the contamination percentage. Continuing to run running a vehicle that is currently starting to suffer from the effect of fuel contamination will definitely be responsible for even more damage being caused to the fuel system parts.
  3. Are you interested in peace of mind?
    In that case get it removed. Regardless of the contamination percentage, there is inevitably some amount of risk connected with driving a Petrol engine on Petrol contaminated with Diesel. Possible outcomes of driving a car on the incorrect fuel include things like the motor not starting, running lumpy, reduced power, wearing of the high-pressure pump, worn or blocked injectors, and so forth. These are several of the most frequently seen Diesel in Petrol warning signs, and should you recognise any of them then stop and have it drained immediately.

Don't just get any jack-of-all-trades to attend your vehicle. We are BMW experts and have the credentials and working experience required to make certain you get back on the road with minimal hassle or worry.

Put Diesel in a Petrol BMW

Mistakenly put Diesel in a Petrol BMW? Or perhaps even put contaminated fuel in your BMW M coupe?

Give us a call for Help & Recommendations

Call us and receive straightforward guidance and practical assistance for your precise circumstance

We come out and drain it

We are able to come to you to carry out the fuel removal & flush right there on scene

All done & You Get Moving Once again

As soon as we have finished you are able to get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain experts in the UK, offering countrywide cover, for BMW motorists in particular. We mostly deal with:

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

We are BMW specialists and have successfully drained thousands of Petrol BMW vehicles. Even if it is at the roadside, on a station forecourt, or even at home, we are able to get you going once again.

The Process

The procedure of draining Diesel from a Petrol car is basically exactly the same for the majority of cars. Of course it does differ slightly as every brand has their own fuel system. Having said that it still fundamentally adheres to 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.

Get in Touch

Should you have any questions or want help please Call us!
We are able to get you on the road once again.

24/7 BMW Helpline

0333 366 0103

Our Business Office

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

Weekdays: 9am to 5pm

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