Incorrect fuel in a BMW 118i? Diesel in a Petrol BMW?

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BMW Fuel Drain


Filling up with Diesel in a Petrol BMW is a very common mistake. And what you should do about it depends upon an assortment of things. In the event that you want to know what you should do to fix it then continue reading.
Here are the key factors to be aware of whenever choosing whether to get the car drained:

  1. What level of Diesel have you put into the BMW, keeping in mind that the fuel tank capacity of the BMW 118i is most likely around 53 litres?
    1. A tiny quantity of Diesel, as little as 2.65 litres of Diesel in a Petrol 118i will typically not really be a significant problem. Experience has shown us that quantities less than 2.65 litres (which is close to 5% of the fuel tank) is sometimes capable of being completely diluted by means of wholly filling the remainder of the tank with Petrol.
      It's very uncommon to find a car suffering from difficulties due to less than 5% incorrect fuel contamination. Do not forget that it is very infrequently found - certainly not impossible to find. There are actually some cars that don't endure any quantity of fuel contamination whatsoever.
    2. Anywhere between 2.65 and 5.3 litres of Diesel in the BMW (5 to 10%) is a 50/50 condition. Our experience has revealed that as many motorists get away with this as all those who don't. When you are deciding on whether or not to risk it and just fill it up remember that it is the same as wagering your car on black - you have got a 50/50 possibility of it being ok.
    3. Anything in excess of 5.3 litres of Diesel in a Petrol 118i really should straightaway be drained seeing that your probability of getting away with this level of contamination is certainly below one in fifty - seriously huge odds.
  2. Put Diesel in a Petrol BMW and drove it: Have you noticed any performance troubles ever since putting the bad fuel in your 118i? If that's the case, get it drained irrespective of the quantity of Diesel or even the contamination percentage. Still running an automobile that is now beginning to suffer the consequences of wrong fuel contamination can definitely end up in even more harm affecting your fuel system components.
  3. Are you looking for assurance?
    You should get it removed. Regardless of contamination ratio, there is inevitably a certain level of threat connected with operating a Petrol motor on fuel contaminated with Diesel. Probable final outcomes of driving on the wrong fuel normally include the engine refusing to start, running lumpy, lack of power, degradation of the high-pressure pump, worn out or blocked injectors, and so forth. These are a few of the most common Diesel in Petrol signs and symptoms, and if you notice any of them stop and have it removed right away.

Stay away from having any unqualified mechanic to attend your automobile. We are BMW specialists and have the certification and knowledge needed to make certain that you get back on the road with a minimum of hassle or worry.

Put Diesel in a Petrol BMW

Unintentionally put Diesel in a Petrol BMW? Or possibly even put contaminated fuel in your BMW 118i?

Give us a call for Help & Recommendations

Give us a call and receive sincere advice and sensible help for your specific circumstances

We show up and do the fuel drain

We would go to you to carry out the contaminated fuel retrieval & clean right there on scene

Once carried out You Get Moving Once again

When we are done you will be able to get back on the road and get on with your trip

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain professionals in the UK, boasting countrywide service, for BMW motorists particularly. We predominantly fix:

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

We are BMW specialists and have successfully drained hundreds of Petrol BMW vehicles. Whether or not it is roadside, on a station forecourt, or even at your house, we are able to get you going once again.

The Procedure

The system of draining Diesel from a Petrol car is essentially identical for virtually all motor vehicles. As you can imagine it may vary to some degree as each make has their particular different fuel system. Even so it still basically observes the following 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 FAQs

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.

Contact Us

If you have any concerns or want assistance please Contact Us!
We can 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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