Incorrect fuel in your Mercedes SL 63 AMG? Diesel in a Petrol Mercedes?

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Mercedes Fuel Drain


Filling Diesel in a Petrol Mercedes is a well-known error. And exactly what you want to do about it varies according to several different things. Assuming you would like to find out what you should do to fix it then keep on reading.
Listed here are the most crucial factors to consider when figuring out whether to get a fuel drain:

  1. How much Diesel have you put in to the Mercedes, bearing in mind that the fuel tank capacity of your Mercedes SL 63 AMG is usually about 80 litres?
    1. A tiny amount of Diesel, as little as 4 litres of Diesel in a Petrol SL 63 AMG will in most situations not really be a massive problem. Experience has demonstrated to us that anything under 4 litres (almost 5% of the total fuel tank) is often capable of being completely diluted simply by entirely filling the tank with the appropriate fuel.
      It is rather uncommon to come across a motor vehicle experiencing issues due to under 5% wrong fuel contamination. Keep in mind that it is very rare - definitely not impossible to find. There are actually certain vehicles that don't endure any amount of fuel contamination at all.
    2. Between 4 and 8 litres of Diesel in the Mercedes (5 to 10%) is a 50/50 scenario. Our experience demonstrates that as many people get away with it as all those who break down. When trying to decide whether or not to risk it and just simply top it up bear in mind that it is much like gambling everything on black - you will have a 50/50 possibility of it working out.
    3. Anything more than 8 litres of Diesel in your Petrol SL 63 AMG must right away be drained out seeing that your likelihood of driving with this quantity of contamination is more than likely less than one in 50 - seriously huge odds.
  2. Put some Diesel in a Petrol Mercedes and drove it: Have you spotted any kind of performance difficulties as a result of putting the bad fuel in the SL 63 AMG? If you have, get it emptied no matter the amount of Diesel or the contamination percentage. Continually driving a motor vehicle that is already starting to suffer the effect of wrong fuel contamination will definitely cause more damage being caused to your fuel system parts.
  3. Do you want security?
    In that case get it drained. Regardless of contamination percentage, there is always some degree of risk caused by driving a Petrol vehicle on Petrol contaminated with the wrong fuel. Probable consequences of driving on the wrong fuel include things like the motor refusing to start, running unevenly, loss in power, degradation of the high-pressure pump, worn or blocked injectors, and so forth. These are some of the most common Diesel in Petrol signs or symptoms, and in the event that you notice any of them then stop and have it drained as soon as possible.

Do not simply get any unqualified mechanic to attend your car. We are Mercedes experts and hold the qualifications and knowledge required to ensure you are back on the road with little 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 SL 63 AMG?

Contact us for Assistance & Guidance

Contact us and obtain straightforward recommendations and sensible assistance for your particular circumstances

We show up and drain it

We would go to you to perform the contaminated fuel retrieval & flush right there on scene

All done & You Get Moving Again

When we have finished you are able to get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain experts in the UK, boasting national service, for Mercedes motorists especially. We primarily fix:

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

We are Mercedes specialists and have successfully drained thousands of Petrol Mercedes vehicles. No matter if it's at the roadside, on a petrol station forecourt, or even at your house, we can get you moving once again.

The Process

The system of draining Diesel from a Petrol vehicle is generally similar for the majority of cars. As you can imagine it does differ a bit as every brand has their own different fuel system. Nevertheless it still follows the below principles:

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.

Call us

If you have any concerns or need our help please Contact Us!
We can get you on the road 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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