Incorrect fuel in your BMW 330Cd? Petrol in a Diesel BMW?

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BMW Fuel Drain


Putting Petrol in a Diesel BMW is a fairly typical problem. And exactly what you need to do about it is based on an assortment of factors. If you would like to find out what you should do about this then read on.
Let us discuss the key factors to be aware of whenever deciding on whether or not to have it drained:

  1. How much Petrol have you put in the BMW, taking into account that the fuel tank capacity of your BMW 330Cd is in most cases about 63 litres?
    1. A modest amount of Petrol, something like 3.15 litres of Petrol in a Diesel 330Cd will typically not be a massive problem. Experience has proven to us that anything less than 3.15 litres (roughly 5% of the entire fuel tank capacity) is quite often able to be sufficiently diluted by thoroughly topping the remainder of the tank with the correct fuel.
      It is rather unusual to encounter a motor vehicle experiencing difficulties because of below 5% incorrect fuel contamination. Keep in mind it is uncommon - definitely not impossible to encounter. You will discover a few automobiles that don't stand any quantity of fuel contamination whatsoever.
    2. Between 3.15 and 6.3 litres of Petrol in the BMW (from 5 to 10%) is a 50/50 scenario. Our working experience has demonstrated that as many motorists get away with this as all those who don't. Whenever figuring out whether or not to risk it and simply fill it up recognise that it is exactly like betting your car on black - you've got a 50/50 possibility of it working out.
    3. Anything in excess of 6.3 litres of Petrol in your Diesel 330Cd must as soon as possible be drained as your likelihood of succeeding with that amount of contamination is undoubtedly less than one in fifty - truly huge odds.
  2. Put some Petrol in a Diesel BMW and drove it: Have you detected any performance problems ever since putting the wrong fuel in the 330Cd? If so, have it removed no matter the quantity of Petrol or even the contamination percentage. Continually running a vehicle that is starting to suffer from the consequences of fuel contamination will probably only cause progressively more harm being caused to the fuel system components.
  3. Would you like reassurance?
    Simply get it removed. Regardless of contamination ratio, there is invariably some amount of risk caused by driving a Diesel motor on fuel contaminated with Petrol. Probable implications of driving on the incorrect fuel include the engine not starting, running lumpy, reduced power, wearing of the high-pressure pump, damaged or bunged injectors, and so forth. These are a few of the most typical Petrol in Diesel symptoms, and in the event that you observe any of them then stop driving and get it removed asap.

Refrain from getting any jack-of-all-trades to try to fix your car. We are BMW specialists and have the certification and expertise required to make sure that you are back on the road with minimum hassle or trouble.

Put Petrol in a Diesel BMW

Inadvertently put Petrol in a Diesel BMW? Or even put contaminated fuel in your BMW 330Cd?

Give us a call for Assistance & Advice

Call us and receive reliable recommendations and practical assistance for your precise circumstances

We come out and drain it

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

All done & You Get Going Once again

As soon as we have completed you will be able to get back moving and get on with your day

Wrong Fuel Drain Specialists

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

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

We are BMW specialists and have successfully drained thousands of Diesel BMW vehicles. Whether it is at the roadside, on a station forecourt, or even at your house, we can get you going once again.

The Procedure

The method of draining Petrol from a Diesel car is generally exactly the same for the vast majority of motor vehicles. Naturally it can differ slightly as each make has their unique different fuel system. However it still adheres to the below 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.

Contact Us

In case you have any queries or require our assistance please Call us!
We are able to get you moving once again.

24 hour BMW Helpline

0333 366 0103

Our Corporate Office

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

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