Incorrect fuel in your Mercedes R350? Diesel in a Petrol Mercedes?

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Mercedes Fuel Drain


Putting Diesel in a Petrol Mercedes is a well-known problem. And what you need to do about it is based on an assortment of things. Assuming you want to know what you ought to do about it then continue reading.
Listed below are the most crucial variables to take into account whenever making a decision whether to have a fuel drain:

  1. What amount of Diesel did you put in the Mercedes, taking into account that the fuel capacity of the Mercedes R350 is most likely around 80 litres?
    1. A tiny quantity of Diesel, less than 4 litres of Diesel in a Petrol R350 will in most cases not be a huge problem. Experience has taught us that anything less than 4 litres (which is about 5% of the whole fuel tank volume) is usually capable of being adequately diluted by means of completely topping up the remainder of the tank with Petrol.
      It is highly rare to come across a vehicle experiencing problems because of below 5% wrong fuel contamination. Keep in mind it's infrequent - certainly not impossible to encounter. You will discover a few vehicles that don't endure any level of fuel contamination whatsoever.
    2. Between 4 and 8 litres of Diesel in the Mercedes (5 to 10%) is more of a 50/50 situation. Our experience has proven that as many motorists get away with it as those people who don't. Whenever you are figuring out whether or not to chance it and basically fill it up consider that it is the same thing as gambling all of it on black - you have got a 50/50 possibility of it working.
    3. Anything in excess of 8 litres of Diesel in a Petrol R350 should promptly be drained as your probability of succeeding with that amount of contamination is in all likelihood below one in fifty - definitely long odds.
  2. Put Diesel in a Petrol Mercedes and drove it: Have you seen any kind of performance difficulties ever since putting the bad fuel in your R350? If that's the case, get it drained irrespective of the amount of Diesel or even the contamination percentage. Continuing to drive driving a motor vehicle that is currently beginning to suffer from the consequences of wrong fuel contamination will just bring about more and more damage being caused to the fuel system.
  3. Are you looking for security?
    Simply get it emptied. No matter the contamination percentage, there is invariably some amount of risk in connection with driving a Petrol engine on fuel contaminated with the incorrect fuel. Probable final outcomes of driving a vehicle on the incorrect fuel include things like the motor not starting, running unevenly, decrease in power, wearing of the high-pressure pump, damaged or clogged injectors, and the like. These are several of the commonest Diesel in Petrol signs and symptoms, and if you observe any of them stop and have it drained as soon as possible.

Don't simply have any unqualified mechanic to try to drain your car. We are Mercedes experts and have the certification and practical experience necessary to ensure that you get back on the road with no hassle or trouble.

Put Diesel in a Petrol Mercedes

Accidentally put Diesel in a Petrol Mercedes? Or perhaps even put contaminated fuel in your Mercedes R350?

Contact us for Assistance & Recommendations

Give us a call and receive straightforward guidance and sensible help for your precise circumstances

We come out and drain it

We are able to reach you to undertake the complete contaminated fuel drain & flush right there on scene

All done & You Get Going Once again

When we are done you will be able to get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain specialists in the UK, having nationwide service, for Mercedes motorists particularly. We mostly attend:

  • Unleaded petrol in a Diesel Car
  • Diesel in Unleaded Petrol Auto
  • AdBlue contamination
  • Water contamination

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

The Process

The procedure of draining Diesel from a Petrol car is in essence similar for the majority of cars. Of course it may vary to some degree as each make has their own different fuel system. However it still essentially follows 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 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 questions or require some assistance please Call us!
We can get you on the road again.

24/7 Mercedes Helpline

0333 366 0103

Our Corporate Office

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

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