Incorrect fuel in your Mercedes C220 CDI? Petrol in your Diesel Mercedes?

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Mercedes Fuel Drain


Filling up with Petrol in a Diesel Mercedes is a regular error. And what you should do about it hinges on several different things. If you want to know what you need to do about this then read on.
Listed below are the most important variables to take into consideration when figuring out whether or not to get a fuel drain:

  1. What amount of Petrol did you put in to the Mercedes, bearing in mind that the fuel tank capacity of the Mercedes C220 CDI is normally approximately 62 litres?
    1. A small amount of Petrol, something like 3.1 litres of Petrol in a Diesel C220 CDI will quite often not necessarily be a big problem. Experience has proven to us that quantities less than 3.1 litres (almost 5% of the whole fuel tank volume) is usually capable of being sufficiently diluted through thoroughly filling the tank with Diesel.
      It's extremely unusual to find an automobile suffering from problems due to under 5% wrong fuel contamination. Keep in mind it is very infrequent - definitely not impossible to encounter. There are actually certain cars that won't endure any degree of contamination in the slightest.
    2. Between 3.1 and 6.2 litres of Petrol in the Mercedes (from 5 to 10%) is really a 50/50 condition. Our expertise has shown us that as many drivers get away with this as those who break down. When you are figuring out whether or not to risk it and basically fill it up consider that it is the same thing as wagering everything on black - you have a 50/50 possibility of it working out.
    3. Anything in excess of 6.2 litres of Petrol in a Diesel C220 CDI ought to right away be drained out seeing that your likelihood of succeeding with that quantity of contamination is probably lower than one in 50 - extremely big odds.
  2. Put Petrol in a Diesel Mercedes and drove it: Have you noticed any performance troubles since putting the incorrect fuel in the C220 CDI? In that case, have it removed irrespective of the amount of Petrol or even the contamination percentage. Continually driving a car that is beginning to suffer from the consequences of fuel contamination will likely bring about more harm being caused to your fuel system.
  3. Do you need peace of mind?
    In that case get it removed. Regardless of the contamination percentage, there is inevitably some degree of threat connected with running a Diesel motor on fuel contaminated with Petrol. Possible results of driving a vehicle on the incorrect fuel can include the motor not starting, running lumpy, loss of power, wearing of the high-pressure pump, damaged or bunged injectors, etc. These are a few of the most frequently seen Petrol in Diesel signs and symptoms, and in the event that you notice any of them then stop driving and get it drained immediately.

Don't simply have any unqualified mechanic to try to repair your vehicle. We are Mercedes experts and hold the certification and practical experience necessary to make sure that you get back on the road with minimum hassle or worry.

Put Petrol in a Diesel Mercedes

By mistake put Petrol in a Diesel Mercedes? Or perhaps even put contaminated fuel in your Mercedes C220 CDI?

Give us a call for Help & Advice

Contact us and receive honest advice and sensible assistance for your precise situation

We show up and drain it

We can reach you to carry out the complete fuel drain & clean right there on scene

All done & You Get Going Again

As soon as we are done you will be able to get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain specialists in the UK, having countrywide coverage, for Mercedes motorists particularly. We typically attend:

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

We are Mercedes specialists and have successfully drained hundreds of Diesel Mercedes vehicles. Whether it's roadside, on a station forecourt, or even at your house, we are able to get you on the road once again.

The Process

The method of extracting Petrol from a Diesel vehicle is fundamentally the same for the majority of motor vehicles. As you can imagine it may differ a little as each manufacturer has their particular different fuel system. Nevertheless it still adheres to 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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Petrol in Diesel Questions

When someone has put Petrol in a Diesel car they have a few very common questions. So we have compiled a list of the most Frequently Asked Questions for you

I put Petrol in a Diesel 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 Diesel car on Petrol 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 Petrol can I get away with in a Diesel 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 Diesel 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 going again.

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0333 366 0103

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

Weekdays: 9am to 5pm

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