Contaminated fuel in your Mercedes CL63 AMG? Diesel in a Petrol Mercedes?

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Mercedes Fuel Drain


Putting Diesel in a Petrol Mercedes is a fairly typical mistake. And its solution varies according to a variety of factors. Assuming you want to find out what you should do to fix it then keep reading.
These are the key variables to think about when deciding whether or not to have a fuel drain:

  1. Exactly how much Diesel did you put in to the Mercedes, keeping in mind that the fuel capacity of your Mercedes CL63 AMG is normally approximately 88 litres?
    1. A tiny amount of Diesel, something like 4.4 litres of Diesel in a Petrol CL63 AMG will more often than not not be a significant problem. Experience has proven to us that an amount less than 4.4 litres (which is 5% of the whole fuel tank) is sometimes able to be adequately diluted by means of thoroughly topping up the remainder of the tank with the right fuel.
      It is extremely rare to encounter a motor vehicle suffering from difficulties due to less than 5% incorrect fuel contamination. Bear in mind that it's uncommon - in no way impossible to find. You will discover certain motor vehicles that won't endure any quantity of contamination in the slightest.
    2. In between 4.4 and 8.8 litres of Diesel in the Mercedes (from 5 to 10%) is more of a 50/50 condition. Our working experience has proven that as many drivers get away with this as those people who break down. Whenever trying to decide whether to chance it and simply fill it up bear in mind that it is the same thing as betting your car on black - you've got a 50/50 possibility of it working.
    3. Anything more than 8.8 litres of Diesel in a Petrol CL63 AMG should really promptly be removed seeing as your likelihood of getting away with this amount of contamination is certainly lower than one in 50 - truly huge odds.
  2. Put some Diesel in a Petrol Mercedes and drove it: Have you detected any performance issues after putting the bad fuel in the CL63 AMG? If you have, have it drained irrespective of the quantity of Diesel or even the contamination percentage. Proceeding to run running a motor vehicle that is currently starting to suffer from the effects of wrong fuel contamination can typically bring about increasing amounts of damage being caused to your fuel system.
  3. Are you looking for peace of mind?
    You should get it drained. No matter the contamination percentage, there is invariably some extent of threat resulting from running a Petrol motor on fuel contaminated with the wrong fuel. Likely results of driving on the wrong fuel can include the engine not starting, running unevenly, decrease in power, degradation of the high-pressure pump, worn out or blocked injectors, and so forth. These are some of the commonest Diesel in Petrol signs and symptoms, and should you detect any of them stop driving and get it removed asap.

Do not simply have any unqualified mechanic to try to repair your car. We are Mercedes specialists and have the credentials and expertise necessary to make certain you are back on the road with a minimum of hassle or trouble.

Put Diesel in a Petrol Mercedes

Accidentally put Diesel in a Petrol Mercedes? Or possibly even put contaminated fuel in your Mercedes CL63 AMG?

Call us for Help & Guidance

Call us and obtain honest guidance and sensible assistance for your specific circumstances

We come out and drain it

We are able to go to you to perform the complete fuel retrieval & purge right there on scene

Once performed You Get Moving Once again

When we are done you can get back moving and get on with your trip

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain specialists in the UK, offering national service, for Mercedes motorists especially. We mainly attend to:

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

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

The Procedure

The method of getting rid of Diesel from a Petrol vehicle is basically the same for most vehicles. Needless to say it can differ slightly as every manufacturer has their unique fuel system. Nevertheless it still basically adheres to the below points:

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.

Contact Us

Should you have any concerns or want some assistance please Call us!
We can get you on the road once again.

24 hour 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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