Contaminated fuel in a Mercedes V 200 CDI Trend? Petrol in a Diesel Mercedes?

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Mercedes Fuel Drain


Putting Petrol in a Diesel Mercedes is a common problem. And exactly what you want to do about it hinges on a number of factors. Assuming you want to know what you should do about it then keep reading.
Here are the most important variables to take into consideration when making a decision whether or not to get it drained:

  1. Exactly how much Petrol did you put in the Mercedes, taking into consideration that the fuel capacity of your Mercedes V 200 CDI Trend is in most cases about 78 litres?
    1. A small quantity of Petrol, less than 3.9 litres of Petrol in a Diesel V 200 CDI Trend will most of the time not be a major problem. Experience has proven to us that an amount under 3.9 litres (which is roughly 5% of the fuel tank) is usually capable of being completely diluted simply by wholly topping the rest of the tank with Diesel.
      It is rather uncommon to come across a car going through problems with less than 5% wrong fuel contamination. Keep in mind it is very rare - not impossible to encounter. You can get a few cars that won't endure any quantity of contamination whatsoever.
    2. In between 3.9 and 7.8 litres of Petrol in the Mercedes (5 to 10%) is more of a 50/50 scenario. Our experience has demonstrated that as many motorists get away with it as all those who don't. Any time you are deciding whether to chance it and just top it up remember that it is much like gambling all of it on black - you have got a 50/50 chance of it being ok.
    3. Anything more than 7.8 litres of Petrol in your Diesel V 200 CDI Trend should immediately be drained since your likelihood of getting away with that amount of contamination is undoubtedly less than one in fifty - really big odds.
  2. Put some Petrol in a Diesel Mercedes and drove it: Have you noted any performance problems as a result of putting the bad fuel in your V 200 CDI Trend? If that's the case, get it drained no matter the volume of Petrol or even the contamination ratio. Proceeding to drive driving an automobile that is currently starting to suffer from the effect of fuel contamination can typically cause even more harm being caused to your fuel system parts.
  3. Would you like security?
    Then simply just get it removed. Whatever the contamination percentage, there is inevitably some extent of risk resulting from operating a Diesel motor on fuel contaminated with Petrol. Probable final outcomes of driving on the wrong fuel include the engine not starting, running lumpy, loss in power, degradation of the high-pressure pump, damaged or bunged injectors, and so forth. These are several of the most common Petrol in Diesel signs and symptoms, and should you recognise any of them then stop driving and get it drained right away.

Do not just have any untrained so-and-so to attend your vehicle. We are Mercedes experts and hold the skills and experience necessary to ensure you are back on the road with minimal hassle or worry.

Put Petrol in a Diesel Mercedes

Accidentally put Petrol in a Diesel Mercedes? Or perhaps even put contaminated fuel in your Mercedes V 200 CDI Trend?

Give us a call for Help & Recommendations

Call us and receive genuine guidance and sensible help for your exact circumstance

We come out and drain it

We would come to you to do the full contaminated fuel drain & cleanse right there on scene

Once completed You Get Going Once again

When we are done you are able to get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain authorities in the UK, having national service, for Mercedes motorists especially. We mainly fix:

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

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

The Procedure

The process of getting rid of Petrol from a Diesel car is essentially identical for most cars. Needless to say it may vary a little as every manufacturer has their unique distinct fuel system. Having said that it still generally adheres to the following 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 FAQs

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

In the event that you have any enquiries or need our help please Contact Us!
We can 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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