Contaminated fuel in your BMW 318tds? Petrol in your Diesel BMW?

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BMW Fuel Drain


Putting Petrol in a Diesel BMW is a usual problem. And its solution depends on a number of things. In the event that you want to find out what you should do about it then keep reading.
These are the main variables to be aware of whenever determining whether to get it drained:

  1. Exactly how much Petrol did you put into the BMW, taking into account that the fuel tank capacity of your BMW 318tds is in most cases roughly 65 litres?
    1. A small quantity of Petrol, less than 3.25 litres of Petrol in a Diesel 318tds will quite often not really be a major problem. Experience has demonstrated to us that an amount under 3.25 litres (which is roughly 5% of the total fuel tank volume) is quite often capable of being sufficiently diluted through completely topping the rest of the tank with Diesel.
      It is extremely uncommon to encounter a car going through issues because of lower than 5% wrong fuel contamination. Do not forget that it's unusual - in no way impossible to encounter. You can get a number of cars that will not endure any level of contamination at all.
    2. Somewhere between 3.25 and 6.5 litres of Petrol in the BMW (from 5 to 10%) is more of a 50/50 scenario. Our expertise has demonstrated that as many drivers get away with this as all those who don't. Any time you're deciding on whether to chance it and just simply fill it up bear in mind that it is the same as wagering all of it on black - you have got a 50/50 chance of it working out.
    3. Anything over 6.5 litres of Petrol in a Diesel 318tds should really right away be removed seeing that your likelihood of driving with that amount of contamination is in all likelihood less than one in 50 - truly big odds.
  2. Put Petrol in a Diesel BMW and drove it: Have you noted any kind of performance problems after putting the incorrect fuel in your 318tds? If you have, have it emptied regardless of the volume of Petrol or the contamination percentage. Proceeding to run driving a motor vehicle that is already beginning to suffer the consequences of fuel contamination will only be responsible for even more damage affecting the fuel system components.
  3. Do you need peace of mind?
    You should get it removed. Regardless of the contamination ratio, there is always some amount of danger connected to driving a Diesel engine on Diesel contaminated with Petrol. Probable outcomes of driving on the wrong fuel include things like the motor not starting, running lumpy, reduced power, degradation of the high-pressure pump, worn out or blocked injectors, and so on. These are some of the most common Petrol in Diesel warning signs, and if you observe any of them stop and have it drained right away.

Steer clear of getting any jack-of-all-trades to attend your vehicle. We are BMW experts and hold the qualifications and working experience needed to ensure you are back on the road with minimal hassle or worry.

Put Petrol in a Diesel BMW

Accidentally put Petrol in a Diesel BMW? Or possibly even put contaminated fuel in your BMW 318tds?

Contact us for Assistance & Advice

Call us and receive sincere advice and sensible help for your particular circumstances

We come out and drain it

We are able to reach you to do the complete contaminated fuel drain & clean there on scene

All done & You Get Moving Again

Once we are done you are able to get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain authorities in the UK, boasting national service, for BMW motorists particularly. We mostly deal with:

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

We are BMW specialists and have successfully drained hundreds of Diesel BMW vehicles. No matter if it is roadside, on a filling station forecourt, or even at your home, we can get you on the road once again.

The Procedure

The procedure of extracting Petrol from a Diesel vehicle is fundamentally identical for a large number of cars. Needless to say it does vary to some degree as each brand has their own fuel system. Nevertheless it still fundamentally follows 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.

Call us

In the event that you have any enquiries or require some help please Call 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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