Incorrect fuel in your BMW 323Ci? Diesel in your Petrol BMW?

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BMW Fuel Drain


Filling Diesel in a Petrol BMW is a regular problem. And what you should do about it hinges on various factors. If you would like to find out what it is advisable to do about it then keep on reading.
Let us discuss the main factors to take into consideration whenever figuring out whether or not to have a fuel drain:

  1. What level of Diesel did you put into the BMW, taking into account that the fuel capacity of the BMW 323Ci is normally around 63 litres?
    1. A tiny amount of Diesel, something like 3.15 litres of Diesel in a Petrol 323Ci will in most cases not really be a big problem. Experience has proven to us that quantities under 3.15 litres (which is almost 5% of the overall fuel tank) is usually able to be adequately diluted by means of entirely filling the tank with Petrol.
      It is rather uncommon to encounter a car experiencing difficulties due to lower than 5% wrong fuel contamination. Be aware that it is infrequently found - certainly not impossible to find. There are a few motor vehicles that will not stand any degree of fuel contamination in the slightest.
    2. In between 3.15 and 6.3 litres of Diesel in the BMW (5 to 10%) is more of a 50/50 scenario. Our experience has revealed that as many people get away with it as those who don't. Whenever you are trying to decide whether or not to chance it and simply fill it up remember that it is exactly like wagering it all on black - you have got a 50/50 possibility of it being ok.
    3. Anything above 6.3 litres of Diesel in a Petrol 323Ci should really promptly be drained out as your probability of succeeding with this amount of contamination is undoubtedly less than one in 50 - truly big odds.
  2. Put Diesel in a Petrol BMW and drove it: Have you observed any kind of performance problems since putting the wrong fuel in the 323Ci? In that case, get it drained irrespective of the volume of Diesel or even the contamination percentage. Continuing to drive driving a vehicle that is beginning to suffer from the consequences of fuel contamination can likely cause even more damage affecting your fuel system parts.
  3. Would you like peace of mind?
    You should get it emptied. No matter the contamination ratio, there is always some degree of risk affiliated with driving a Petrol engine on Petrol contaminated with the incorrect fuel. Possible implications of driving a car on the incorrect fuel include things like the motor not starting, running lumpy, loss of power, wearing of the high-pressure pump, damaged or blocked injectors, and so on. These are some of the commonest Diesel in Petrol warning signs, and if you observe any of them stop and have it removed right now.

Don't simply get any general so-and-so to attend your car. We are BMW specialists and possess the credentials and working experience needed to make certain you are back on the road with minimal hassle or worry.

Put Diesel in a Petrol BMW

Inadvertently put Diesel in a Petrol BMW? Or even put contaminated fuel in your BMW 323Ci?

Give us a call for Help & Advice

Give us a call and receive straightforward recommendations and practical assistance for your particular circumstances

We show up and drain it

We are able to go to you to carry out the fuel drain & flush right there on scene

Once completed You Get Moving Again

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

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain specialists in the UK, having nationwide service, for BMW motorists in particular. We predominantly attend:

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

We are BMW specialists and have successfully drained thousands of Petrol BMW vehicles. Whether or not it's roadside, on a filling station forecourt, or even at your house, we are able to get you on the road once again.

The Process

The procedure of removing Diesel from a Petrol car is essentially the same for the majority of vehicle makes. Of course it can differ a little as each manufacturer has their own fuel system. Nevertheless it still essentially adheres to 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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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.

Contact Us

Should you have any enquiries or require our assistance please Call us!
We are able to get you moving 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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