Bad fuel in your BMW 125d? Petrol in a Diesel BMW?

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BMW Fuel Drain


Filling up with Petrol in a Diesel BMW is a usual mistake to make. And what you should do about it hinges on a few things. In case you would like to find out what you should do about it then read on.
Right here are the most crucial factors to think about whenever deciding whether to have a fuel drain:

  1. What level of Petrol have you put in to the BMW, considering that the fuel tank capacity of your BMW 125d is most likely around 52 litres?
    1. A small amount of Petrol, less than 2.6 litres of Petrol in a Diesel 125d will normally not be a huge problem. Experience has proven to us that an amount under 2.6 litres (which is roughly 5% of the whole fuel tank volume) is frequently capable of being completely diluted by means of entirely topping the rest of the tank with the correct fuel.
      It is highly unusual to come across an automobile going through issues because of below 5% incorrect fuel contamination. Keep in mind that it is very rare - not impossible to encounter. There are actually some motor vehicles that don't endure any degree of fuel contamination in the slightest.
    2. Anywhere between 2.6 and 5.2 litres of Petrol in the BMW (from 5 to 10%) is more of a 50/50 scenario. Our working experience has shown that as many people get away with it as those people who don't. When you are trying to decide whether or not to risk it and simply fill it up consider that it is much like gambling your car on black - you have got a 50/50 chance of it working.
    3. Anything in excess of 5.2 litres of Petrol in your Diesel 125d should immediately be drained because your likelihood of driving with this level of contamination is certainly lower than one in 50 - really long odds.
  2. Put Petrol in a Diesel BMW and drove it: Have you noted any performance concerns ever since putting the wrong fuel in the 125d? If you have, have it drained regardless of the quantity of Petrol or the contamination percentage. Continuing to run driving an automobile that is already beginning to suffer from the effect of fuel contamination can typically end up in more and more harm being done to the fuel system parts.
  3. Are you interested in peace of mind?
    In that case get it drained. Regardless of the contamination percentage, there is inevitably some amount of danger resulting from running a Diesel engine on fuel contaminated with Petrol. Possible final outcomes of driving a car on the wrong fuel include things like the motor refusing to start, running lumpy, lack of power, degradation of the high-pressure pump, damaged or bunged injectors, and the like. These are some of the most typical Petrol in Diesel warning signs, and should you notice any of them stop and get it drained as soon as possible.

Don't just get any unqualified mechanic to attend your vehicle. We are BMW specialists and have got the accreditation and working experience required to make certain you are back on the road with minimum 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 125d?

Give us a call for Help & Advice

Contact us and receive honest recommendations and sensible assistance for your particular circumstance

We arrive and do the fuel drain

We would go to you to do the complete fuel retrieval & clean there on scene

Once completed You Get Moving Again

As soon as we are done you will be able to get back moving and get on with your trip

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain experts in the UK, offering countrywide coverage, for BMW motorists particularly. We principally deal with:

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

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

The Procedure

The system of draining Petrol from a Diesel car is generally exactly the same for the majority of cars. As you can imagine it may vary somewhat as each make has their particular distinct fuel system. Nevertheless it still follows 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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Petrol in Diesel FAQs

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

Should you have any concerns or require our help please Contact Us!
We are able to get you going 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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