Wrong fuel in a Mercedes S63 AMG? Diesel in your Petrol Mercedes?

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Mercedes Fuel Drain


Filling Diesel in a Petrol Mercedes is a well-known problem. And what you should do about it is determined by various things. If you would like to know what to do about it then keep on reading.
Listed below are the most important factors to think about whenever choosing whether or not to get a fuel drain:

  1. How much Diesel did you put in to the Mercedes, taking into consideration that the fuel tank capacity of your Mercedes S63 AMG is most likely roughly 90 litres?
    1. A tiny quantity of Diesel, less than 4.5 litres of Diesel in a Petrol S63 AMG will in most situations not really be a huge problem. Experience has shown us that anything less than 4.5 litres (which is close to 5% of the total fuel tank volume) is sometimes able to be sufficiently diluted by wholly topping the tank with Petrol.
      It is pretty unusual to find a motor vehicle suffering from problems because of under 5% wrong fuel contamination. Do not forget that it's unusual - in no way impossible to find. You will discover some motor vehicles that won't stand any quantity of fuel contamination at all.
    2. Anywhere between 4.5 and 9 litres of Diesel in the Mercedes (from 5 to 10%) is really a 50/50 condition. Our experience has shown us that as many people get away with it as all those who break down. When figuring out whether to risk it and just simply fill it up remember that it is much like betting everything on black - you will have a 50/50 chance of it being ok.
    3. Anything above 9 litres of Diesel in your Petrol S63 AMG really should straightaway be drained seeing that your likelihood of succeeding with that level of contamination is undoubtedly less than one in 50 - seriously big odds.
  2. Put Diesel in a Petrol Mercedes and drove it: Have you noticed any kind of performance concerns as a result of putting the wrong fuel in the S63 AMG? If you have, get it removed irrespective of the volume of Diesel or the contamination ratio. Still running a motor vehicle that is now beginning to suffer the consequences of wrong fuel contamination can typically end up in increasing amounts of harm being done to your fuel system.
  3. Do you need reassurance?
    In that case get it removed. Whatever the contamination ratio, there is always some amount of threat connected with operating a Petrol vehicle on Petrol contaminated with the wrong fuel. Possible final outcomes of driving a car on the incorrect fuel can include the engine refusing to start, running unevenly, lack of power, wearing of the high-pressure pump, worn or clogged injectors, etc. These are some of the most typical Diesel in Petrol signs or symptoms, and should you recognise any of them then cease driving and get it drained immediately.

Don't just have any untrained so-and-so to attend your automobile. We are Mercedes experts and have the qualifications and experience required to make certain you are back on the road with a minimum of hassle or trouble.

Put Diesel in a Petrol Mercedes

By mistake put Diesel in a Petrol Mercedes? Or possibly even put contaminated fuel in your Mercedes S63 AMG?

Call us for Help & Guidance

Call us and get sincere advice and sensible assistance for your particular situation

We show up and do the fuel drain

We would reach you to undertake the fuel drain & clean there on scene

All done & You Get Moving Again

Once we are done you are 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 authorities in the UK, offering nationwide service, for Mercedes motorists in particular. We predominantly deal with:

  • Unleaded petrol in a Diesel Vehicle
  • Diesel in an Unleaded Petrol Auto
  • AdBlue fuel contamination
  • Water contamination

We are Mercedes specialists and have successfully drained hundreds of Petrol Mercedes vehicles. Whether or not it's at the roadside, on a petrol station forecourt, or even at your home, we can get you on the road again.

The Process

The technique of draining Diesel from a Petrol car is in essence identical for virtually all vehicle makes. Needless to say it may vary somewhat as every make has their own fuel system. Nevertheless it still essentially observes 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.

Call us

If you have any enquiries or need some assistance please Call us!
We are able to get you moving again.

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0333 366 0103

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

Weekdays: 9am to 5pm

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