Incorrect fuel in your Mercedes R280 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 solution hinges on several different factors. Assuming you would like to know what you ought to do about this then read on.
Here are the most crucial factors to keep in mind when determining whether or not to get a fuel drain:

  1. How much Petrol did you put into the Mercedes, taking into account that the fuel tank capacity of the Mercedes R280 CDI is probably approximately 80 litres?
    1. Hardly any Petrol, something like 4 litres of Petrol in a Diesel R280 CDI will more often than not not really be a significant problem. Experience has demonstrated to us that quantities less than 4 litres (about 5% of the whole fuel tank volume) is quite often capable of being sufficiently diluted simply by thoroughly topping up the tank with Diesel.
      It is very rare to find a car suffering from difficulties due to less than 5% wrong fuel contamination. Keep in mind it's infrequently found - not impossible to encounter. There are actually a number of vehicles that will not endure any degree of fuel contamination whatsoever.
    2. Anywhere between 4 and 8 litres of Petrol in the Mercedes (from 5 to 10%) is really a 50/50 scenario. Our practical experience has shown us that as many motorists get away with this as all those who break down. Any time you're deciding upon whether or not to chance it and just simply top it up recognise that it is just like gambling all of it on black - you've got a 50/50 possibility of it being ok.
    3. Anything over 8 litres of Petrol in your Diesel R280 CDI really should as soon as possible be removed seeing as your probability of driving with this level of contamination is probably below one in 50 - truly long odds.
  2. Put Petrol in a Diesel Mercedes and drove it: Have you noticed any kind of performance concerns after putting the incorrect fuel in your R280 CDI? If you have, have it removed regardless of the quantity of Petrol or even the contamination percentage. Proceeding to run driving a car that is now starting to suffer from the effects of wrong fuel contamination can definitely result in increasing amounts of damage being done to your fuel system parts.
  3. Are you interested in peace of mind?
    You should get it emptied. Whatever the contamination ratio, there is always some extent of risk caused by operating a Diesel motor on fuel contaminated with Petrol. Likely outcomes of driving a car on the wrong fuel include the engine not starting, running lumpy, loss in power, wearing of the high-pressure pump, worn out or blocked injectors, etc. These are some of the most frequently seen Petrol in Diesel signs or symptoms, and should you recognise any of them then stop and get it drained right away.

Refrain from getting any jack-of-all-trades to attend your car. We are Mercedes experts and have got the skills and knowledge required 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 R280 CDI?

Contact us for Assistance & Recommendations

Call us and receive genuine advice and sensible help for your particular situation

We come out and do the fuel drain

We are able to go to you to undertake the fuel removal & cleanse there on scene

All done & You Get Going Once again

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

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain specialists in the UK, having national cover, for Mercedes motorists particularly. We primarily attend to:

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

We are Mercedes specialists and have successfully drained thousands of Diesel Mercedes vehicles. Whether it is roadside, on a petrol station forecourt, or even at home, we are able to get you going again.

The Procedure

The method of removing Petrol from a Diesel vehicle is fundamentally identical for the majority of cars. Needless to say it can vary somewhat as every manufacturer has their own fuel system. However it still fundamentally observes the following 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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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.

Get in Touch

Should you have any queries or need some assistance please Call 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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