Incorrect fuel in your BMW 318d? Petrol in a Diesel BMW?

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BMW Fuel Drain


Putting Petrol in a Diesel BMW is a regular problem. And what you should do about it depends on an assortment of factors. Assuming you want to know what you should do to fix it then keep reading.
Here are the key factors to to consider whenever determining whether or not to have a fuel drain:

  1. What level of Petrol have you put into the BMW, taking into account that the fuel capacity of the BMW 318d is most likely approximately 63 litres?
    1. Hardly any Petrol, less than 3.15 litres of Petrol in a Diesel 318d will in most situations not really be a big problem. Experience has shown us that quantities less than 3.15 litres (almost 5% of the whole fuel tank volume) is very often able to be completely diluted by means of completely filling the rest of the tank with the appropriate fuel.
      It's quite uncommon to encounter a car or truck going through difficulties with under 5% wrong fuel contamination. Remember that it is infrequent - definitely not impossible to encounter. There are some automobiles that will not endure any degree of contamination at all.
    2. In between 3.15 and 6.3 litres of Petrol in the BMW (from 5 to 10%) is really a 50/50 condition. Our experience has shown us that as many drivers get away with it as those who don't. Any time you are figuring out whether to chance it and simply top it up remember that it is the same as betting your car on black - you've got a 50/50 chance of it working.
    3. Anything above 6.3 litres of Petrol in a Diesel 318d ought to right away be drained because your likelihood of driving with that level of contamination is undoubtedly below one in fifty - genuinely huge odds.
  2. Put Petrol in a Diesel BMW and drove it: Have you noted any kind of performance difficulties as a result of putting the incorrect fuel in the 318d? If that's the case, get it removed no matter the amount of Petrol or even the contamination ratio. Still running a car that is already starting to suffer the effects of wrong fuel contamination will definitely be responsible for progressively more harm affecting the fuel system parts.
  3. Do you need reassurance?
    You should get it removed. No matter the contamination ratio, there is invariably some amount of danger associated with operating a Diesel engine on fuel contaminated with the wrong fuel. Probable outcomes of driving on the incorrect fuel normally include the engine refusing to start, running lumpy, reduced power, degradation of the high-pressure pump, damaged or bunged injectors, and so on. These are several of the commonest Petrol in Diesel signs or symptoms, and in the event that you observe any of them then stop driving and get it drained immediately.

Keep away from having any jack-of-all-trades to try to fix your car. We are BMW experts and hold the certification and expertise required to make certain that you are back on the road with little hassle or trouble.

Put Petrol in a Diesel BMW

By mistake put Petrol in a Diesel BMW? Or perhaps even put contaminated fuel in your BMW 318d?

Contact us for Assistance & Guidance

Give us a call and get reliable recommendations and sensible assistance for your specific situation

We come out and drain it

We would go to you to do the full contaminated fuel drain & flush there on scene

All done & You Get Moving Once again

Once we have completed you will be 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 national service, for BMW motorists especially. We principally fix:

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

We are BMW specialists and have successfully drained thousands of Diesel BMW vehicles. No matter if it's at the roadside, on a station forecourt, or even at home, we are able to get you moving again.

The Procedure

The technique of getting rid of Petrol from a Diesel vehicle is fundamentally exactly the same for the majority of motor vehicles. As you can imagine it can vary slightly as every brand has their own different fuel system. Having said that it still fundamentally 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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Petrol in Diesel Questions

When someone has put Petrol in a Diesel car they have a few very common questions. So we have compiled a list of the most Frequently Asked Questions for you

I put Petrol in a Diesel 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 Diesel car on Petrol 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 Petrol can I get away with in a Diesel 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 Diesel 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 enquiries or need some assistance please Call us!
We are able to get you on the road again.

24/7 BMW Helpline

0333 366 0103

Our Corporate Office

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

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