Contaminated fuel in a BMW M3 Coupe CSL? Diesel in your Petrol BMW?

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BMW Fuel Drain


Filling up with Diesel in a Petrol BMW is a well-known mistake. And its remedy is based on several factors. In case you want to find out what to do about it then read on.
These are the key factors to keep in mind when making a decision whether or not to get the car drained:

  1. What amount of Diesel have you put in the BMW, keeping in mind that the fuel capacity of your BMW M3 Coupe CSL is normally about 63 litres?
    1. A tiny quantity of Diesel, something like 3.15 litres of Diesel in a Petrol M3 Coupe CSL will in most cases not really be a massive problem. Experience has proven to us that an amount less than 3.15 litres (almost 5% of the whole fuel tank) is usually capable of being sufficiently diluted by totally filling the rest of the tank with the appropriate fuel.
      It's extremely uncommon to encounter an automobile having problems due to below 5% wrong fuel contamination. Keep in mind it is infrequently found - certainly not impossible to encounter. You will discover a few vehicles that will not stand any degree of contamination whatsoever.
    2. In between 3.15 and 6.3 litres of Diesel in the BMW (from 5 to 10%) is really a 50/50 situation. Our experience has demonstrated that as many people get away with this as those who break down. When you are deciding whether or not to chance it and just simply fill it up remember that it is much like wagering all of it on black - you will have a 50/50 chance of it being ok.
    3. Anything in excess of 6.3 litres of Diesel in a Petrol M3 Coupe CSL should really promptly be drained out seeing that your probability of getting away with this level of contamination is almost certainly less than one in fifty - genuinely big odds.
  2. Put Diesel in a Petrol BMW and drove it: Have you spotted any performance troubles since putting the wrong fuel in the M3 Coupe CSL? If you have, have it drained irrespective of the amount of Diesel or the contamination ratio. Still running a vehicle that is beginning to suffer the consequences of fuel contamination will definitely be responsible for progressively more damage being done to the fuel system.
  3. Do you want peace of mind?
    In that case get it removed. Regardless of the contamination ratio, there is inevitably some amount of threat caused by operating a Petrol motor on fuel contaminated with the wrong fuel. Likely results of driving on the wrong fuel include things like the motor refusing to start, running lumpy, losing power, wearing of the high-pressure pump, damaged or blocked injectors, and so forth. These are several of the most common Diesel in Petrol warning signs, and if you notice any of them then stop and have it drained as soon as possible.

Stay away from getting any untrained so-and-so to try to repair your automobile. We are BMW specialists and have got the accreditation and working experience needed to make certain that you are back on the road with little hassle or trouble.

Put Diesel in a Petrol BMW

Accidentally put Diesel in a Petrol BMW? Or perhaps even put contaminated fuel in your BMW M3 Coupe CSL?

Call us for Help & Advice

Give us a call and obtain reliable guidance and practical assistance for your specific circumstance

We show up and drain it

We can go to you to carry out the complete contaminated fuel drain & cleanse right there on scene

All done & You Get Going Again

Once we have completed you can get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain authorities in the UK, having nationwide coverage, for BMW motorists especially. We typically deal with:

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

We are BMW specialists and have successfully drained hundreds of Petrol BMW vehicles. Regardless of whether it's roadside, on a petrol station forecourt, or even at your house, we can get you moving again.

The Process

The method of draining Diesel from a Petrol vehicle is basically identical for a large number of vehicle makes. Obviously it may vary somewhat as each make has their particular distinct fuel system. Nevertheless it still generally follows the below 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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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.

Call us

If you have any concerns or require some help please Call us!
We are able to get you moving again.

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0333 366 0103

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

Weekdays: 9am to 5pm

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