Contaminated fuel in your Mercedes B180 CDI? Petrol in your Diesel Mercedes?

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Mercedes Fuel Drain


Filling Petrol in a Diesel Mercedes is a common mistake. And its remedy varies according to a few things. If you would like to know what to do about it then please read on.
Right here are the key factors to think about whenever deciding whether or not to get a fuel drain:

  1. What level of Petrol did you put into the Mercedes, taking into account that the fuel tank capacity of your Mercedes B180 CDI is most likely around 54 litres?
    1. Hardly any Petrol, something like 2.7 litres of Petrol in a Diesel B180 CDI will most of the time not be a huge problem. Experience has taught us that quantities under 2.7 litres (5% of the entire fuel tank capacity) is usually able to be adequately diluted by thoroughly topping the tank with the appropriate fuel.
      It's extremely uncommon to come across a car or truck suffering from problems with below 5% incorrect fuel contamination. Remember that it's uncommon - certainly not impossible to encounter. You will discover a number of motor vehicles that don't endure any amount of contamination in the slightest.
    2. Anywhere between 2.7 and 5.4 litres of Petrol in the Mercedes (5 to 10%) is really a 50/50 situation. Our experience has confirmed that as many people get away with this as all those who break down. Any time you're figuring out whether or not to risk it and just simply top it up recognise that it is exactly like betting it all on black - you've got a 50/50 possibility of it working out.
    3. Anything over 5.4 litres of Petrol in your Diesel B180 CDI should really immediately be drained out seeing as your likelihood of getting away with this amount of contamination is more than likely less than one in fifty - really huge odds.
  2. Put Petrol in a Diesel Mercedes and drove it: Have you noticed any performance issues since putting the bad fuel in your B180 CDI? If you have, have it removed regardless of the volume of Petrol or even the contamination percentage. Still driving a car that is already beginning to suffer the effects of fuel contamination can only lead to even more harm affecting your fuel system parts.
  3. Do you want assurance?
    Then get it drained. No matter the contamination percentage, there is always some extent of risk in connection with operating a Diesel engine on fuel contaminated with the incorrect fuel. Possible outcomes of driving a vehicle on the incorrect fuel include things like the engine refusing to start, running lumpy, loss in power, wearing of the high-pressure pump, damaged or blocked injectors, and so on. These are some of the most typical Petrol in Diesel warning signs, and in the event that you detect any of them cease driving and get it drained immediately.

Avoid having any jack-of-all-trades to try to drain your car. We are Mercedes specialists and have got the accreditation and experience necessary to make certain that you get back on the road with no hassle or trouble.

Put Petrol in a Diesel Mercedes

Unintentionally put Petrol in a Diesel Mercedes? Or perhaps even put contaminated fuel in your Mercedes B180 CDI?

Call us for Assistance & Guidance

Give us a call and receive sincere guidance and practical assistance for your precise circumstance

We come out and do a fuel drain

We would come to you to perform the full contaminated fuel drain & clean there on scene

All done & You Get Moving Again

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

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain authorities in the UK, boasting nationwide cover, for Mercedes motorists in particular. We predominantly deal with:

  • Unleaded petrol in Diesel Vehicle
  • Diesel in an Unleaded Petrol Car
  • AdBlue fuel contamination
  • Water fuel contamination

We are Mercedes specialists and have successfully drained thousands of Diesel Mercedes vehicles. Even if it is at the roadside, on a station forecourt, or even at your home, we are able to get you moving again.

The Process

The system of removing Petrol from a Diesel car is basically exactly the same for the majority of vehicle makes. As you can imagine it may differ slightly as each brand has their unique distinct fuel system. Even so it still fundamentally observes 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.

Call us

In the event that you have any queries or want some help please Contact Us!
We are able to get you going 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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