Bad fuel in your Mercedes C240? Diesel in a Petrol Mercedes?

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Mercedes Fuel Drain


Filling up with Diesel in a Petrol Mercedes is a very common error. And what you want to do about it is dependent upon various factors. In the event that you would like to find out what you have to do to fix it then read on.
These are the main factors to keep in mind whenever deciding whether to get a fuel drain:

  1. What amount of Diesel did you put in the Mercedes, taking into account that the fuel capacity of the Mercedes C240 is most likely roughly 62 litres?
    1. A small quantity of Diesel, as little as 3.1 litres of Diesel in a Petrol C240 will more often than not not necessarily be a significant problem. Experience has shown us that anything under 3.1 litres (which is close to 5% of the total fuel tank capacity) is generally capable of being completely diluted simply by thoroughly topping up the rest of the tank with Petrol.
      It is extremely rare to encounter a motor vehicle experiencing problems with under 5% incorrect fuel contamination. Please remember it's infrequently found - in no way impossible to encounter. You will discover a number of automobiles that won't stand any quantity of fuel contamination at all.
    2. Anywhere between 3.1 and 6.2 litres of Diesel in the Mercedes (5 to 10%) is a 50/50 condition. Our practical experience has demonstrated that as many motorists get away with it as all those who don't. Any time you're figuring out whether to risk it and basically top it up consider that it is very much like wagering it all on black - you've got a 50/50 possibility of it working.
    3. Anything over 6.2 litres of Diesel in a Petrol C240 ought to straight away be drained out as your probability of driving with that level of contamination is certainly less than one in 50 - extremely big odds.
  2. Put some Diesel in a Petrol Mercedes and drove it: Have you observed any performance issues since putting the incorrect fuel in the C240? If that's the case, get it removed irrespective of the quantity of Diesel or even the contamination ratio. Continuing to run driving a car that is now beginning to suffer from the effects of wrong fuel contamination can definitely cause progressively more damage being caused to your fuel system components.
  3. Do you need security?
    Then get it emptied. Regardless of contamination ratio, there is inevitably a certain level of risk connected with operating a Petrol engine on Petrol contaminated with Diesel. Probable results of driving a car on the incorrect fuel include the motor not starting, running lumpy, loss in power, degradation of the high-pressure pump, damaged or blocked injectors, and so on. These are several of the most frequently seen Diesel in Petrol symptoms, and should you notice any of them then stop driving and get it removed right now.

Refrain from getting any untrained so-and-so to try to repair your automobile. We are Mercedes experts and possess the skills and practical experience required to make certain you get back on the road with no hassle or trouble.

Put Diesel in a Petrol Mercedes

Unintentionally put Diesel in a Petrol Mercedes? Or even put contaminated fuel in your Mercedes C240?

Call us for Help & Recommendations

Give us a call and receive genuine guidance and sensible help for your specific circumstance

We arrive and do a fuel drain

We can come to you to do the full contaminated fuel removal & purge right there on scene

Once performed You Get Moving Again

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

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain authorities in the UK, offering countrywide cover, for Mercedes motorists particularly. We mainly attend:

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

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

The Procedure

The procedure of extracting Diesel from a Petrol car is fundamentally identical for the majority of vehicle makes. As you can imagine it may differ to some extent as each make has their unique distinct fuel system. Nevertheless it still fundamentally follows the below 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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Diesel in Petrol FAQs

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.

Get in Touch

Should you have any concerns or need some help please Contact Us!
We can get you on the road once again.

24/7 Mercedes Helpline

0333 366 0103

Our Corporate Office

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

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