Contaminated fuel in a Mercedes C200? Diesel in your Petrol Mercedes?

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Mercedes Fuel Drain


Filling up with Diesel in a Petrol Mercedes is a regular mistake. And its solution depends upon various things. If you would like to know what you ought to do to fix it then stay with me.
Let us discuss the most crucial variables to keep in mind when figuring out whether to have a fuel drain:

  1. How much Diesel have you put in to the Mercedes, keeping in mind that the fuel capacity of your Mercedes C200 is usually approximately 62 litres?
    1. A small quantity of Diesel, as little as 3.1 litres of Diesel in a Petrol C200 will typically not necessarily be a major problem. Experience has taught us that an amount under 3.1 litres (close to 5% of the whole fuel tank capacity) is very often capable of being adequately diluted through wholly filling up the tank with Petrol.
      It's quite unusual to find a motor vehicle suffering from issues with less than 5% wrong fuel contamination. Do not forget that it is very infrequently found - definitely not impossible to find. You can get a few motor vehicles that will not endure any quantity of contamination in the slightest.
    2. Anywhere between 3.1 and 6.2 litres of Diesel in the Mercedes (5 to 10%) is really a 50/50 scenario. Our working experience has shown us that as many motorists get away with this as all those who break down. Whenever figuring out whether to chance it and just top it up recognise that it is the same thing as betting all of it on black - you will have a 50/50 chance of it being ok.
    3. Anything more than 6.2 litres of Diesel in a Petrol C200 must straight away be removed seeing as your probability of driving with that amount of contamination is undoubtedly below one in 50 - really long odds.
  2. Put Diesel in a Petrol Mercedes and drove it: Have you seen any kind of performance difficulties after putting the incorrect fuel in your C200? If you have, have it drained regardless of the volume of Diesel or the contamination percentage. Still running an automobile that is currently beginning to suffer from the effects of wrong fuel contamination will definitely end up in progressively more harm being caused to your fuel system.
  3. Do you want security?
    In that case get it drained. No matter the contamination percentage, there is always some degree of risk connected to running a Petrol engine on Petrol contaminated with Diesel. Probable implications of driving a vehicle on the wrong fuel include the motor not starting, running unevenly, lack 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 signs and symptoms, and if you recognise any of them then stop and have it removed as soon as possible.

Do not just get any jack-of-all-trades to attend your vehicle. We are Mercedes specialists and hold the accreditation and working experience needed to make sure that you are 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 C200?

Contact us for Help & Guidance

Give us a call and get reliable recommendations and sensible help for your exact situation

We show up and drain it

We are able to go to you to undertake the full contaminated fuel retrieval & clean right there on scene

All done & You Get Going Once again

When 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 experts in the UK, boasting national cover, for Mercedes motorists in particular. We typically fix:

  • Unleaded petrol in a Diesel Auto
  • Diesel in your Unleaded Petrol Vehicle
  • AdBlue fuel contamination
  • Water 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 home, we can get you moving once again.

The Procedure

The technique of removing Diesel from a Petrol vehicle is generally the same for the vast majority of cars. Obviously it does differ a bit as each manufacturer has their own different fuel system. Nevertheless it still fundamentally observes 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.

Call us

If you have any concerns or want some help please Call us!
We can get you moving once 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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