Wrong fuel in a Mercedes E430? Diesel in your Petrol Mercedes?

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Mercedes Fuel Drain


Putting Diesel in a Petrol Mercedes is a common mistake to make. And what you have to do about it is dependent upon a variety of things. In the event that you would like to find out what you must do to sort it out then keep on reading.
These are the most crucial variables to think about when choosing whether to have the car drained:

  1. How much Diesel have you put into the Mercedes, bearing in mind that the fuel tank capacity of the Mercedes E430 is in most cases approximately 80 litres?
    1. Hardly any Diesel, as little as 4 litres of Diesel in a Petrol E430 will generally not necessarily be a major problem. Experience has demonstrated to us that an amount less than 4 litres (approximately 5% of the fuel tank capacity) is often capable of being completely diluted through totally filling the remainder of the tank with the appropriate fuel.
      It is highly uncommon to come across a vehicle having issues due to less than 5% wrong fuel contamination. Please remember it's unusual - definitely not impossible to encounter. There are some vehicles that will not stand any degree of contamination in the slightest.
    2. In between 4 and 8 litres of Diesel in the Mercedes (5 to 10%) is more of a 50/50 situation. Our experience demonstrates that as many drivers get away with this as those who break down. Whenever deciding whether to risk it and simply fill it up remember that it is the same thing as wagering all of it on black - you will have a 50/50 possibility of it working.
    3. Anything above 8 litres of Diesel in a Petrol E430 should really immediately be drained since your likelihood of succeeding with this amount of contamination is very likely lower than one in 50 - really huge odds.
  2. Put some Diesel in a Petrol Mercedes and drove it: Have you detected any kind of performance difficulties as a result of putting the bad fuel in the E430? If that's the case, get it removed no matter the volume of Diesel or the contamination ratio. Continuing to run driving a car that is starting to suffer the consequences of wrong fuel contamination will probably definitely end up in progressively more damage affecting your fuel system parts.
  3. Are you interested in assurance?
    Then simply just get it drained. Regardless of the contamination percentage, there is invariably some degree of threat linked with driving a Petrol motor on fuel contaminated with the wrong fuel. Probable outcomes of driving a car on the wrong fuel include things like the engine not starting, running unevenly, loss of power, wearing of the high-pressure pump, worn or blocked injectors, and so on. These are several of the most typical Diesel in Petrol symptoms, and if you recognise any of them then stop and get it removed immediately.

Keep away from getting any unqualified so-and-so to try to repair your automobile. We are Mercedes experts and have got the credentials and experience required to make certain you get back on the road with minimum hassle or trouble.

Put Diesel in a Petrol Mercedes

Inadvertently put Diesel in a Petrol Mercedes? Or perhaps even put contaminated fuel in your Mercedes E430?

Call us for Help & Guidance

Give us a call and obtain straightforward guidance and sensible help for your exact circumstances

We show up and drain it

We can come to you to carry out the complete contaminated fuel retrieval & flush right there on scene

All done & You Get Moving Once again

As soon as we have completed you will be able to get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain authorities in the UK, boasting countrywide service, for Mercedes motorists in particular. We primarily deal with:

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

We are Mercedes specialists and have successfully drained hundreds of Petrol Mercedes vehicles. Even if it is at the roadside, on a filling station forecourt, or even at your home, we are able to get you going again.

The Process

The method of removing Diesel from a Petrol vehicle is fundamentally similar for a large number of vehicle makes. Needless to say it does differ a little as every manufacturer has their own distinct fuel system. Even so it still basically 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.

Contact Us

In the event that you have any questions or require our help please Contact Us!
We are able to get you moving again.

24 hour Mercedes Helpline

0333 366 0103

Our Corporate Office

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


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