Wrong fuel in a Mercedes C63 AMG? Diesel in your Petrol Mercedes?

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Mercedes Fuel Drain


Filling up with Diesel in a Petrol Mercedes is a common problem. And what you need to do about it varies according to several different things. Assuming you would like to know what you need to do about this then read on.
Listed below are the main variables to take into account when deciding whether or not to get your car drained:

  1. What amount of Diesel have you put in the Mercedes, keeping in mind that the fuel tank capacity of your Mercedes C63 AMG is probably approximately 66 litres?
    1. A tiny quantity of Diesel, less than 3.3 litres of Diesel in a Petrol C63 AMG will in most situations not really be a big problem. Experience has demonstrated to us that an amount under 3.3 litres (about 5% of the overall fuel tank) is frequently capable of being adequately diluted through entirely topping the rest of the tank with Petrol.
      It's pretty unusual to encounter a car or truck having problems with less than 5% wrong fuel contamination. Remember that it is uncommon - definitely not impossible to find. There are actually a number of motor vehicles that don't endure any level of contamination whatsoever.
    2. Anywhere between 3.3 and 6.6 litres of Diesel in the Mercedes (5 to 10%) is a 50/50 scenario. Our working experience has revealed that as many people get away with this as those people who don't. Whenever deciding upon whether to risk it and just top it up remember that it is the same thing as betting all of it on black - you have a 50/50 chance of it working out.
    3. Anything more than 6.6 litres of Diesel in a Petrol C63 AMG should immediately be removed since your likelihood of succeeding with that level of contamination is undoubtedly less than one in fifty - seriously long odds.
  2. Put some Diesel in a Petrol Mercedes and drove it: Have you noticed any performance issues since putting the wrong fuel in the C63 AMG? If you have, get it drained irrespective of the volume of Diesel or the contamination percentage. Proceeding to drive driving an automobile that is beginning to suffer the consequences of wrong fuel contamination can typically result in more and more damage affecting your fuel system parts.
  3. Do you need peace of mind?
    Then simply just get it drained. Whatever the contamination ratio, there is always some amount of threat connected with operating a Petrol motor on fuel contaminated with Diesel. Probable results of driving a car on the incorrect fuel can include the motor refusing to start, running unevenly, lack of power, wearing of the high-pressure pump, damaged or clogged injectors, and so forth. These are some of the most common Diesel in Petrol warning signs, and in the event that you observe any of them stop driving and have it removed as soon as possible.

Do not simply get any jack-of-all-trades to attend your automobile. We are Mercedes specialists and possess the qualifications and expertise necessary to ensure you are back on the road with minimum hassle or worry.

Put Diesel in a Petrol Mercedes

By mistake put Diesel in a Petrol Mercedes? Or perhaps even put contaminated fuel in your Mercedes C63 AMG?

Contact us for Assistance & Recommendations

Contact us and receive genuine advice and practical assistance for your specific circumstance

We show up and drain it

We are able to reach you to do the full contaminated fuel drain & flush right there on scene

Once carried out You Get Moving Once again

Once we have finished you will be able to get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain specialists in the UK, having nationwide cover, for Mercedes motorists particularly. We principally attend:

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

We are Mercedes specialists and have successfully drained hundreds of Petrol Mercedes vehicles. Whether it's roadside, on a station forecourt, or even at your house, we can get you going once again.

The Procedure

The procedure of removing Diesel from a Petrol vehicle is basically exactly the same for virtually all cars. Obviously it can differ a little as each brand has their particular different fuel system. Having said that 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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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

In case you have any concerns or want some assistance please Contact Us!
We can get you going once 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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