Incorrect fuel in a Mercedes S500? Diesel in your Petrol Mercedes?

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Mercedes Fuel Drain


Putting Diesel in a Petrol Mercedes is a well-known mistake to make. And exactly what you want to do about it is based on several different factors. In the event that you want to know what you have to do about it then continue reading.
Listed here are the main factors to take into consideration when making a decision whether to get a fuel drain:

  1. What amount of Diesel have you put in the Mercedes, keeping in mind that the fuel tank capacity of your Mercedes S500 is most likely about 100 litres?
    1. Hardly any Diesel, less than 5 litres of Diesel in a Petrol S500 will usually not really be a huge problem. Experience has proven to us that anything less than 5 litres (approximately 5% of the fuel tank capacity) is oftentimes able to be sufficiently diluted simply by thoroughly topping up the tank with the correct fuel.
      It is extremely unusual to come across an automobile suffering from difficulties with less than 5% wrong fuel contamination. Be aware that it is very infrequently found - definitely not impossible to encounter. There are actually a few automobiles that will not endure any quantity of contamination whatsoever.
    2. Between 5 and 10 litres of Diesel in the Mercedes (5 to 10%) is more of a 50/50 condition. Our expertise has proven that as many people get away with it as those who don't. Any time you are figuring out whether or not to risk it and just simply fill it up consider that it is exactly like wagering it all on black - you've got a 50/50 possibility of it working out.
    3. Anything in excess of 10 litres of Diesel in your Petrol S500 should really as soon as possible be drained as your probability of getting away with that amount of contamination is probably below one in fifty - really long odds.
  2. Put some Diesel in a Petrol Mercedes and drove it: Have you noted any performance issues after putting the wrong fuel in your S500? If so, have it drained no matter the volume of Diesel or even the contamination percentage. Still running an automobile that is now beginning to suffer from the effects of wrong fuel contamination can just be responsible for increasing amounts of damage affecting your fuel system parts.
  3. Do you need reassurance?
    You should get it removed. No matter the contamination ratio, there is invariably some amount of risk resulting from operating a Petrol motor on fuel contaminated with Diesel. Probable final outcomes of driving a vehicle on the wrong fuel can include the engine not starting, running lumpy, reduced power, degradation of the high-pressure pump, worn out or blocked injectors, and the like. These are some of the most typical Diesel in Petrol symptoms, and in the event that you observe any of them then stop and have it removed asap.

Don't simply get any unqualified mechanic to try to drain your automobile. We are Mercedes experts and hold the accreditation and practical experience necessary to make certain that you are back on the road with minimal hassle or worry.

Put Diesel in a Petrol Mercedes

Accidentally put Diesel in a Petrol Mercedes? Or even put contaminated fuel in your Mercedes S500?

Call us for Assistance & Guidance

Give us a call and get straightforward recommendations and sensible help for your particular situation

We arrive and drain it

We can reach you to undertake the complete fuel retrieval & clean there on scene

All done & You Get Moving Once again

As soon as we are done you are able to get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain specialists in the UK, having countrywide service, for Mercedes motorists in particular. We typically fix:

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

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

The Process

The procedure of removing Diesel from a Petrol car is generally exactly the same for virtually all vehicles. As you can imagine it does vary to some extent as each brand has their particular different fuel system. Nevertheless it still essentially observes 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 Questions

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

In case you have any enquiries or require assistance please Contact 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

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