Incorrect fuel in a Mercedes S450? Diesel in a Petrol Mercedes?

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Mercedes Fuel Drain


Putting Diesel in a Petrol Mercedes is a common problem. And what you want to do about it hinges on several things. In the event that you want to know what you ought to do about this then keep reading.
Listed here the main factors to take into account when making a decision whether or not to get your car drained:

  1. What amount of Diesel did you put into the Mercedes, considering that the fuel tank capacity of your Mercedes S450 is usually approximately 90 litres?
    1. A modest amount of Diesel, something like 4.5 litres of Diesel in a Petrol S450 will more often than not not be a huge problem. Experience has demonstrated to us that an amount under 4.5 litres (which is 5% of the total fuel tank capacity) is frequently able to be sufficiently diluted simply by completely topping the rest of the tank with the correct fuel.
      It is very unusual to come across a car or truck having difficulties because of below 5% wrong fuel contamination. Keep in mind that it is infrequently found - not impossible to encounter. There are certain vehicles that don't stand any amount of fuel contamination at all.
    2. Between 4.5 and 9 litres of Diesel in the Mercedes (from 5 to 10%) is a 50/50 condition. Our working experience has shown us that as many people get away with it as those people who don't. Whenever figuring out whether or not to risk it and just fill it up bear in mind that it is very much like betting all of it on black - you've got a 50/50 possibility of it working out.
    3. Anything more than 9 litres of Diesel in a Petrol S450 must as soon as possible be drained out as your probability of succeeding with that amount of contamination is almost certainly lower than one in fifty - definitely long odds.
  2. Put some Diesel in a Petrol Mercedes and drove it: Have you noted any kind of performance concerns ever since putting the wrong fuel in your S450? If you have, get it emptied no matter the volume of Diesel or the contamination ratio. Continually running a car that is already beginning to suffer the effects of fuel contamination will probably likely be responsible for progressively more harm affecting your fuel system components.
  3. Are you looking for security?
    Then get it drained. Regardless of the contamination percentage, there is invariably some amount of risk linked with driving a Petrol engine on Petrol contaminated with Diesel. Likely implications of driving on the incorrect fuel include the motor refusing to start, running lumpy, lack of power, degradation of the high-pressure pump, worn or blocked injectors, and so on. These are several of the most typical Diesel in Petrol signs or symptoms, and if you detect any of them stop and get it drained right away.

Avoid getting any unqualified mechanic to try to drain your car. We are Mercedes specialists and hold the skills and experience required to ensure 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 even put contaminated fuel in your Mercedes S450?

Call us for Assistance & Guidance

Call us and receive sincere guidance and sensible assistance for your exact circumstance

We arrive and drain it

We can reach you to carry out the complete fuel retrieval & cleanse there on scene

All done & You Get Going 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 primary wrong fuel drain authorities in the UK, offering countrywide service, for Mercedes motorists especially. We typically fix:

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

We are Mercedes specialists and have successfully drained hundreds of Petrol Mercedes vehicles. Whether or not it's at the roadside, on a filling station forecourt, or even at your house, we are able to get you moving once again.

The Procedure

The technique of draining Diesel from a Petrol car is essentially identical for the majority of motor vehicles. Obviously it can vary to some extent as each make has their particular fuel system. Having said that it still essentially follows the following 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

If you have any enquiries or require our help please Call us!
We are able to get you on the road once 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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