Incorrect fuel in a BMW 850Ci? Diesel in a Petrol BMW?

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BMW Fuel Drain


Putting Diesel in a Petrol BMW is a very common mistake. And what you have to do about it depends on an assortment of factors. If perhaps you want to know what you need to do to fix it then keep reading.
Listed here are the most important variables to consider whenever making a decision whether or not to get your car drained:

  1. Exactly how much Diesel have you put in the BMW, keeping in mind that the fuel capacity of the BMW 850Ci is probably roughly 90 litres?
    1. A modest amount of Diesel, less than 4.5 litres of Diesel in a Petrol 850Ci will quite often not necessarily be a huge problem. Experience has shown us that anything under 4.5 litres (5% of the whole fuel tank volume) is oftentimes able to be completely diluted through thoroughly filling up the tank with the correct fuel.
      It's very unusual to find an automobile going through difficulties because of below 5% wrong fuel contamination. Be aware that it is rare - not impossible to encounter. You will discover a number of vehicles that don't endure any level of contamination in the slightest.
    2. Between 4.5 and 9 litres of Diesel in the BMW (from 5 to 10%) is more of a 50/50 scenario. Our expertise has revealed that as many people get away with it as all those who break down. Any time you are deciding upon whether to chance it and just simply top it up consider that it is the same as wagering your car on black - you will have a 50/50 possibility of it working out.
    3. Anything over 9 litres of Diesel in a Petrol 850Ci ought to promptly be drained out because your probability of getting away with that quantity of contamination is certainly lower than one in fifty - extremely long odds.
  2. Put some Diesel in a Petrol BMW and drove it: Have you detected any performance difficulties since putting the bad fuel in the 850Ci? If you have, have it emptied irrespective of the volume of Diesel or the contamination percentage. Continuing to drive driving a motor vehicle that is already beginning to suffer the consequences of fuel contamination will probably definitely lead to more and more harm being done to your fuel system components.
  3. Do you want security?
    In that case get it removed. Regardless of the contamination percentage, there is always some extent of danger connected with operating a Petrol motor on Petrol contaminated with Diesel. Likely outcomes of driving a car on the incorrect fuel include things like the engine refusing to start, running unevenly, loss of power, degradation of the high-pressure pump, worn out or clogged injectors, and the like. These are a few of the commonest Diesel in Petrol signs and symptoms, and if you observe any of them cease driving and have it drained right now.

Don't simply have any unqualified mechanic to attend your automobile. We are BMW specialists and have the qualifications and working experience required to make certain that you get back on the road with a minimum of hassle or worry.

Put Diesel in a Petrol BMW

Accidentally put Diesel in a Petrol BMW? Or perhaps even put contaminated fuel in your BMW 850Ci?

Contact us for Assistance & Recommendations

Call us and obtain honest guidance and sensible help for your exact circumstance

We arrive and drain it

We would go to you to carry out the complete contaminated fuel retrieval & cleanse there on scene

All done & You Get Going Once again

Once we are done you are able to get back moving and get on with your day

Wrong Fuel Drain Specialists

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

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

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

The Process

The process of removing Diesel from a Petrol car is generally the same for the vast majority of vehicles. Needless to say it can differ a bit as each make has their unique distinct fuel system. Nevertheless it still basically 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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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

In case you have any questions or require help please Call us!
We are able to get you going once again.

24/7 BMW Helpline

0333 366 0103

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

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