Bad fuel in a Mercedes A250? Diesel in a Petrol Mercedes?

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Mercedes Fuel Drain


Filling Diesel in a Petrol Mercedes is a regularly occurring error. And what you need to do about it depends on a number of factors. In case you would like to know what it is advisable to do about this then read on.
Listed here are the key variables to take into account whenever deciding on whether or not to have it drained:

  1. What amount of Diesel have you put in to the Mercedes, bearing in mind that the fuel tank capacity of your Mercedes A250 is in most cases roughly 50 litres?
    1. A modest quantity of Diesel, as little as 2.5 litres of Diesel in a Petrol A250 will most of the time not really be a massive problem. Experience has proven to us that anything less than 2.5 litres (about 5% of the fuel tank volume) is sometimes able to be completely diluted by totally filling the tank with Petrol.
      It is extremely unusual to encounter a car or truck going through difficulties due to lower than 5% incorrect fuel contamination. Remember that it's infrequent - not impossible to encounter. There are actually certain automobiles that won't endure any amount of fuel contamination whatsoever.
    2. Anywhere between 2.5 and 5 litres of Diesel in the Mercedes (from 5 to 10%) is more of a 50/50 condition. Our experience has demonstrated that as many drivers get away with it as those people who don't. Any time you're deciding whether or not to chance it and simply fill it up recognise that it is just like wagering all of it on black - you've got a 50/50 chance of it being ok.
    3. Anything in excess of 5 litres of Diesel in your Petrol A250 ought to straightaway be removed seeing that your likelihood of driving with this amount of contamination is undoubtedly lower than one in 50 - genuinely huge odds.
  2. Put Diesel in a Petrol Mercedes and drove it: Have you spotted any kind of performance issues as a result of putting the wrong fuel in the A250? If you have, have it emptied regardless of the quantity of Diesel or even the contamination percentage. Continuing to run driving a vehicle that is now beginning to suffer from the consequences of wrong fuel contamination will just lead to more and more harm being caused to the fuel system.
  3. Are you looking for assurance?
    In that case get it drained. Regardless of contamination percentage, there is invariably some amount of risk connected to operating a Petrol vehicle on fuel contaminated with the incorrect fuel. Possible outcomes of driving a vehicle on the incorrect fuel normally include the motor refusing to start, running unevenly, loss of power, wearing of the high-pressure pump, worn or clogged injectors, and so on. These are a few of the most common Diesel in Petrol signs or symptoms, and in the event that you observe any of them then stop and have it removed asap.

Do not just get any jack-of-all-trades to attend your car. We are Mercedes specialists and have the credentials and expertise necessary to make certain you are back on the road with minimum hassle or worry.

Put Diesel in a Petrol Mercedes

Mistakenly put Diesel in a Petrol Mercedes? Or possibly even put contaminated fuel in your Mercedes A250?

Call us for Help & Advice

Give us a call and get genuine advice and sensible help for your particular circumstances

We arrive and do the fuel drain

We can come to you to carry out the contaminated fuel drain & clean right there on scene

All done & You Get Going Again

As soon as we are done you can get back moving and get on with your day

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain specialists in the UK, having nationwide cover, for Mercedes motorists particularly. We typically attend:

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

We are Mercedes specialists and have successfully drained hundreds of Petrol Mercedes vehicles. Even if it's at the roadside, on a station forecourt, or even at your home, we can get you going again.

The Procedure

The method of extracting Diesel from a Petrol car is generally similar for a large number of vehicles. As you can imagine it does vary a bit as every manufacturer has their own distinct fuel system. Having said that it still basically 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 Questions

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

If you have any queries or require some help please Call us!
We are able to get you moving once again.

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0333 366 0103

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

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