Wrong fuel in a BMW 325d? Petrol in your Diesel BMW?

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BMW Fuel Drain


Filling up with Petrol in a Diesel BMW is a usual error. And what you need to do about it depends on various factors. In the event that you would like to know what you should do to sort it out then read on.
Listed here are the most crucial variables to take into account when determining whether or not to get a fuel drain:

  1. How much Petrol have you put in the BMW, taking into consideration that the fuel capacity of the BMW 325d is usually about 61 litres?
    1. A modest amount of Petrol, something like 3.05 litres of Petrol in a Diesel 325d will normally not necessarily be a big problem. Experience has proven to us that quantities under 3.05 litres (which is close to 5% of the entire fuel tank capacity) is oftentimes capable of being adequately diluted by completely topping the rest of the tank with the correct fuel.
      It is extremely rare to encounter a car suffering from issues with lower than 5% incorrect fuel contamination. Do not forget that it's uncommon - certainly not impossible to find. You will discover a few motor vehicles that don't endure any amount of fuel contamination in the slightest.
    2. Anywhere between 3.05 and 6.1 litres of Petrol in the BMW (from 5 to 10%) is really a 50/50 condition. Our practical experience has revealed that as many people get away with this as all those who break down. Whenever you are trying to decide whether to risk it and just simply fill it up recognise that it is just like wagering all of it on black - you will have a 50/50 possibility of it working out.
    3. Anything in excess of 6.1 litres of Petrol in a Diesel 325d really should right away be drained since your probability of succeeding with this amount of contamination is very likely below one in 50 - extremely huge odds.
  2. Put Petrol in a Diesel BMW and drove it: Have you seen any performance difficulties since putting the bad fuel in the 325d? If that's the case, get it drained no matter the amount of Petrol or even the contamination ratio. Continuing to drive driving an automobile that is now starting to suffer from the consequences of wrong fuel contamination will probably typically be responsible for even more damage being done to the fuel system components.
  3. Would you like assurance?
    In that case get it drained. Regardless of the contamination percentage, there is always some degree of danger associated with driving a Diesel motor on fuel contaminated with the incorrect fuel. Possible final outcomes of driving on the incorrect fuel can include the engine not starting, running unevenly, decrease in power, wearing of the high-pressure pump, damaged or bunged injectors, and the like. These are several of the most common Petrol in Diesel symptoms, and if you recognise any of them stop and have it removed right now.

Don't simply get any unqualified mechanic to attend your automobile. We are BMW experts and have the skills and knowledge necessary to make sure that you get back on the road with minimal hassle or worry.

Put Petrol in a Diesel BMW

Mistakenly put Petrol in a Diesel BMW? Or possibly even put contaminated fuel in your BMW 325d?

Give us a call for Help & Recommendations

Contact us and get honest guidance and practical help for your exact circumstance

We come out and drain it

We are able to go to you to undertake the contaminated fuel removal & flush there on scene

Once performed You Get Going Once again

When we have completed you are able to get back on the road and get on with your trip

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain experts in the UK, offering countrywide cover, for BMW motorists especially. We typically attend:

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

We are BMW specialists and have successfully drained thousands of Diesel BMW vehicles. Even if it is roadside, on a filling station forecourt, or even at your home, we are able to get you going again.

The Process

The technique of getting rid of Petrol from a Diesel vehicle is in essence the same for a large number of vehicle makes. Naturally it does differ a bit as each brand has their unique distinct 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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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 the event that you have any queries or need our assistance please Call us!
We are able to get you going once 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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