Incorrect fuel in a Mercedes SLK 320? Diesel in your Petrol Mercedes?

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Mercedes Fuel Drain


Putting Diesel in a Petrol Mercedes is a regularly occurring error. And what you want to do about it varies according to several different things. If you want to find out what it is best to do about this then keep on reading.
Here are the main variables to take into account whenever determining whether or not to have your car drained:

  1. What level of Diesel have you put in to the Mercedes, taking into account that the fuel capacity of your Mercedes SLK 320 is probably approximately 60 litres?
    1. A small quantity of Diesel, as little as 3 litres of Diesel in a Petrol SLK 320 will more often than not not really be a big problem. Experience has proven to us that quantities less than 3 litres (which is 5% of the total fuel tank capacity) is oftentimes capable of being adequately diluted simply by completely topping the remainder of the tank with the appropriate fuel.
      It is relatively unusual to find a vehicle experiencing problems due to below 5% wrong fuel contamination. Keep in mind it's rare - definitely not impossible to encounter. You will discover certain motor vehicles that will not stand any quantity of fuel contamination whatsoever.
    2. Somewhere between 3 and 6 litres of Diesel in the Mercedes (from 5 to 10%) is really a 50/50 situation. Our experience has demonstrated that as many drivers get away with it as all those who break down. When you are deciding upon whether to chance it and just fill it up consider that it is exactly like wagering everything on black - you will have a 50/50 chance of it working out.
    3. Anything over 6 litres of Diesel in a Petrol SLK 320 must straight away be drained seeing that your probability of driving with this quantity of contamination is certainly less than one in fifty - extremely huge odds.
  2. Put some Diesel in a Petrol Mercedes and drove it: Have you noticed any kind of performance issues since putting the wrong fuel in the SLK 320? If so, have it emptied irrespective of the amount of Diesel or the contamination ratio. Proceeding to run running a vehicle that is now starting to suffer the consequences of fuel contamination will probably definitely cause increasing amounts of harm being done to the fuel system components.
  3. Do you want peace of mind?
    You should get it emptied. Regardless of the contamination percentage, there is always a certain level of risk connected with driving a Petrol vehicle on Petrol contaminated with the incorrect fuel. Probable outcomes of driving on the incorrect fuel can include the engine refusing to start, running lumpy, decrease in power, wearing of the high-pressure pump, worn or blocked injectors, and so on. These are some of the most typical Diesel in Petrol symptoms, and should you recognise any of them cease driving and get it removed right away.

Avoid having any untrained so-and-so to attend your car. We are Mercedes specialists and possess the skills and working experience required to ensure that you get back on the road with minimal hassle or trouble.

Put Diesel in a Petrol Mercedes

By mistake put Diesel in a Petrol Mercedes? Or perhaps even put contaminated fuel in your Mercedes SLK 320?

Give us a call for Help & Advice

Give us a call and get reliable recommendations and sensible help for your precise circumstance

We arrive and drain it

We can reach you to perform the full fuel drain & clean right there on scene

All done & You Get Going Again

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

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain specialists in the UK, boasting national service, for Mercedes motorists in particular. We primarily attend to:

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

We are Mercedes specialists and have successfully drained hundreds of Petrol Mercedes vehicles. Regardless of whether it's at the roadside, on a filling station forecourt, or even at your home, we are able to get you moving once again.

The Process

The procedure of removing Diesel from a Petrol car is essentially similar for a large number of cars. As you can imagine it may differ a little as each brand has their unique distinct fuel system. Even so it still observes the following 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 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 concerns or need help please Contact Us!
We can 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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