Wrong fuel in a Mercedes SLK 300? Diesel in your Petrol Mercedes?

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Mercedes Fuel Drain


Filling up with Diesel in a Petrol Mercedes is a regularly occurring error. And what you should do about it depends on an assortment of factors. Assuming you would like to find out what you have to do to fix it then stay with me.
Listed here the most crucial factors to take into consideration when deciding whether or not to get the car drained:

  1. What level of Diesel have you put in to the Mercedes, bearing in mind that the fuel tank capacity of your Mercedes SLK 300 is probably about 70 litres?
    1. A modest quantity of Diesel, as little as 3.5 litres of Diesel in a Petrol SLK 300 will usually not really be a big problem. Experience has demonstrated to us that an amount less than 3.5 litres (about 5% of the whole fuel tank capacity) is very often capable of being completely diluted by entirely topping the tank with Petrol.
      It's very unusual to come across a motor vehicle going through issues with lower than 5% incorrect fuel contamination. Please remember it's infrequently found - not impossible to encounter. There are actually certain vehicles that will not stand any quantity of contamination whatsoever.
    2. Anywhere between 3.5 and 7 litres of Diesel in the Mercedes (from 5 to 10%) is a 50/50 condition. Our practical experience has shown that as many people get away with this as all those who don't. When you are figuring out whether or not to chance it and basically top it up recognise that it is much like wagering it all on black - you will have a 50/50 chance of it working.
    3. Anything more than 7 litres of Diesel in your Petrol SLK 300 really should right away be drained since your likelihood of succeeding with this level of contamination is almost certainly below one in fifty - extremely huge odds.
  2. Put some Diesel in a Petrol Mercedes and drove it: Have you spotted any kind of performance problems after putting the bad fuel in the SLK 300? If you have, get it removed regardless of the quantity of Diesel or the contamination ratio. Still driving a car that is currently beginning to suffer from the effects of wrong fuel contamination will typically be responsible for increasing amounts of damage affecting your fuel system components.
  3. Do you want assurance?
    Then simply just get it drained. No matter the contamination ratio, there is always some amount of risk affiliated with driving a Petrol engine on fuel contaminated with Diesel. Probable final outcomes of driving a vehicle on the incorrect fuel include the engine refusing to start, running unevenly, loss of power, degradation of the high-pressure pump, damaged or bunged injectors, and so forth. These are several of the most common Diesel in Petrol warning signs, and should you observe any of them stop driving and have it drained immediately.

Do not just have any unqualified so-and-so to try to drain your automobile. We are Mercedes experts and hold the qualifications and practical experience needed to make certain that you are back on the road with minimal hassle or worry.

Put Diesel in a Petrol Mercedes

Mistakenly put Diesel in a Petrol Mercedes? Or even put contaminated fuel in your Mercedes SLK 300?

Call us for Assistance & Guidance

Contact us and receive sincere guidance and practical assistance for your particular circumstance

We show up and do a fuel drain

We would reach you to undertake the complete fuel drain & cleanse right there on scene

All done & You Get Going Once again

Once we are done you can get back on the road and get on with your day

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 mostly attend to:

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

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

The Process

The method of getting rid of Diesel from a Petrol car is essentially the same for the vast majority of vehicles. As you can imagine it can vary to some degree as every make has their own different fuel system. Nevertheless it still 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.

Contact Us

Should you have any enquiries or need help please Contact Us!
We are able to get you moving once again.

24/7 Mercedes Helpline

0333 366 0103

Our Business Office

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

Weekdays: 9am to 5pm

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