Contaminated fuel in your BMW 525xd? Petrol in a Diesel BMW?

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Putting Petrol in a Diesel BMW is a regularly occurring error. And its remedy hinges on several things. Assuming you want to find out what you should do about it then continue reading.
Listed below are the key factors to think about when making a decision whether or not to get the car drained:

  1. What level of Petrol did you put in the BMW, taking into account that the fuel tank capacity of your BMW 525xd is probably roughly 70 litres?
    1. A modest quantity of Petrol, as little as 3.5 litres of Petrol in a Diesel 525xd will generally not be a major problem. Experience has proven to us that an amount less than 3.5 litres (which is approximately 5% of the overall fuel tank capacity) is often able to be adequately diluted simply by wholly filling up the tank with Diesel.
      It is extremely uncommon to find a car or truck going through problems because of less than 5% incorrect fuel contamination. Keep in mind it is rare - certainly not impossible to encounter. You will discover a few motor vehicles that don't stand any degree of fuel contamination whatsoever.
    2. In between 3.5 and 7 litres of Petrol in the BMW (5 to 10%) is more of a 50/50 situation. Our experience has shown us that as many people get away with this as those who don't. Any time you are figuring out whether to chance it and simply fill it up remember that it is just like betting all of it on black - you have got a 50/50 chance of it working out.
    3. Anything above 7 litres of Petrol in a Diesel 525xd ought to promptly be removed since your likelihood of succeeding with this amount of contamination is certainly lower than one in 50 - genuinely huge odds.
  2. Put some Petrol in a Diesel BMW and drove it: Have you seen any performance difficulties after putting the incorrect fuel in your 525xd? If so, have it emptied no matter the amount of Petrol or the contamination ratio. Proceeding to run driving an automobile that is currently starting to suffer from the effects of fuel contamination can typically bring about more and more harm being done to your fuel system parts.
  3. Do you need assurance?
    Then simply just get it drained. No matter the contamination ratio, there is always some amount of threat linked with operating a Diesel engine on fuel contaminated with Petrol. Probable consequences of driving a car on the incorrect fuel normally include the motor refusing to start, running lumpy, loss of power, degradation of the high-pressure pump, worn out or bunged injectors, and so forth. These are a few of the most common Petrol in Diesel signs and symptoms, and should you recognise any of them then stop driving and have it removed right away.

Steer clear of having any jack-of-all-trades to attend your automobile. We are BMW specialists and have the credentials and experience needed to ensure you are back on the road with a minimum of hassle or worry.

Put Petrol in a Diesel BMW

By mistake put Petrol in a Diesel BMW? Or possibly even put contaminated fuel in your BMW 525xd?

Give us a call for Assistance & Advice

Contact us and receive straightforward guidance and practical help for your precise circumstances

We come out and drain it

We can go to you to perform the complete fuel removal & clean there on scene

All done & You Get Going Again

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

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain specialists in the UK, boasting nationwide service, for BMW motorists in particular. We principally attend:

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

We are BMW specialists and have successfully drained thousands of Diesel BMW vehicles. Whether it's at the roadside, on a petrol station forecourt, or even at home, we can get you on the road again.

The Process

The procedure of getting rid of Petrol from a Diesel vehicle is in essence similar for most motor vehicles. As you can imagine it may vary slightly as each make has their particular fuel system. Even so it still generally follows the following guidelines:

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.

Contact Us

If you have any concerns or require some assistance please Contact Us!
We can get you moving once again.

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0333 366 0103

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

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