Bad fuel in your Mercedes ML 270 CDI? Petrol in your Diesel Mercedes?

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Mercedes Fuel Drain


Filling up with Petrol in a Diesel Mercedes is a usual error. And exactly what you want to do about it is determined by various things. If you would like to know what it is best to do to fix it then read on.
Listed below are the key factors to keep in mind whenever determining whether or not to get the car drained:

  1. What level of Petrol have you put into the Mercedes, keeping in mind that the fuel tank capacity of the Mercedes ML 270 CDI is most likely approximately 70 litres?
    1. A modest amount of Petrol, less than 3.5 litres of Petrol in a Diesel ML 270 CDI will typically not be a massive problem. Experience has demonstrated to us that anything under 3.5 litres (which is roughly 5% of the total fuel tank volume) is in many instances capable of being sufficiently diluted simply by entirely filling up the tank with Diesel.
      It is rather unusual to encounter a car or truck going through problems because of below 5% wrong fuel contamination. Please remember it's rare - definitely not impossible to find. There are a number of cars that don't endure any quantity of contamination at all.
    2. Between 3.5 and 7 litres of Petrol in the Mercedes (5 to 10%) is more of a 50/50 situation. Our practical experience has proven that as many people get away with this as all those who break down. Whenever deciding upon whether to chance it and just fill it up bear in mind that it is exactly like wagering your car on black - you have a 50/50 possibility of it working.
    3. Anything above 7 litres of Petrol in your Diesel ML 270 CDI should right away be drained seeing that your likelihood of driving with that quantity of contamination is certainly lower than one in fifty - genuinely huge odds.
  2. Put some Petrol in a Diesel Mercedes and drove it: Have you seen any kind of performance difficulties ever since putting the incorrect fuel in your ML 270 CDI? If you have, get it emptied regardless of the volume of Petrol or even the contamination ratio. Proceeding to run running a vehicle that is already beginning to suffer from the effects of wrong fuel contamination will typically be responsible for more damage being caused to your fuel system components.
  3. Are you looking for assurance?
    You should get it emptied. Whatever the contamination ratio, there is always some degree of threat in connection with operating a Diesel vehicle on Diesel contaminated with the wrong fuel. Likely final outcomes of driving on the incorrect fuel include the engine not starting, running unevenly, loss of power, degradation of the high-pressure pump, worn or clogged injectors, and the like. These are some of the commonest Petrol in Diesel signs or symptoms, and if you recognise any of them cease driving and get it removed asap.

Do not simply have any jack-of-all-trades to attend your automobile. We are Mercedes experts and possess the certification and practical experience needed to make certain that you get back on the road with little hassle or worry.

Put Petrol in a Diesel Mercedes

Accidentally put Petrol in a Diesel Mercedes? Or perhaps even put contaminated fuel in your Mercedes ML 270 CDI?

Contact us for Help & Recommendations

Call us and get genuine advice and practical assistance for your precise circumstances

We arrive and drain it

We would come to you to carry out the full contaminated fuel retrieval & purge right there on scene

All done & You Get Going Again

As soon as we are done you should be able to get back on the road and get on with your trip

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain specialists in the UK, offering countrywide cover, for Mercedes motorists especially. We principally attend to:

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

We are Mercedes specialists and have successfully drained thousands of Diesel Mercedes vehicles. Regardless of whether it is at the roadside, on a filling station forecourt, or even at your house, we can get you moving again.

The Process

The system of getting rid of Petrol from a Diesel car is in essence the same for a large number of vehicle makes. As you can imagine it may vary slightly as each manufacturer has their particular fuel system. Nevertheless it still adheres to the following guidelines:

Petrol in Diesel Mercedes

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Mercedes

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Mercedes

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

If you have any questions or want assistance please Call us!
We can get you moving again.

24/7 Mercedes Helpline

0333 366 0103

Our Business Office

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

Weekdays: 9am to 5pm

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