Incorrect fuel in a Mercedes CLS 280? Diesel in a Petrol Mercedes?

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Mercedes Fuel Drain


Filling up with Diesel in a Petrol Mercedes is a well-known problem. And its remedy depends on several different things. In case you want to find out what to do to sort it out then please read on.
These are the key factors to be aware of when determining whether to have a fuel drain:

  1. What amount of Diesel have you put into the Mercedes, taking into consideration that the fuel tank capacity of your Mercedes CLS 280 is usually around 80 litres?
    1. A modest quantity of Diesel, less than 4 litres of Diesel in a Petrol CLS 280 will in most cases not be a massive problem. Experience has shown us that quantities under 4 litres (which is roughly 5% of the total fuel tank capacity) is oftentimes able to be adequately diluted by completely topping up the rest of the tank with Petrol.
      It is quite uncommon to come across a car having difficulties with less than 5% wrong fuel contamination. Keep in mind that it is very infrequent - not impossible to find. There are a few automobiles that will not stand any degree of fuel contamination at all.
    2. Anywhere between 4 and 8 litres of Diesel in the Mercedes (5 to 10%) is more of a 50/50 situation. Our experience has shown that as many people get away with this as those people who don't. When figuring out whether to risk it and basically top it up bear in mind that it is exactly like betting everything on black - you've got a 50/50 chance of it being ok.
    3. Anything over 8 litres of Diesel in your Petrol CLS 280 ought to straightaway be drained because your probability of succeeding with this level of contamination is almost certainly lower than one in fifty - truly huge odds.
  2. Put Diesel in a Petrol Mercedes and drove it: Have you detected any kind of performance issues since putting the incorrect fuel in the CLS 280? In that case, get it emptied regardless of the amount of Diesel or even the contamination percentage. Still running an automobile that is beginning to suffer from the consequences of wrong fuel contamination will probably typically end up in more harm affecting the fuel system.
  3. Are you interested in security?
    Then simply just get it removed. Regardless of contamination ratio, there is invariably some degree of risk resulting from running a Petrol engine on Petrol contaminated with the incorrect fuel. Probable implications of driving on the incorrect fuel normally include the motor refusing to start, running lumpy, losing power, degradation of the high-pressure pump, worn out or blocked injectors, and so forth. These are a few of the most typical Diesel in Petrol signs or symptoms, and should you recognise any of them stop and get it removed as soon as possible.

Refrain from having any unqualified so-and-so to try to repair your car. We are Mercedes experts and possess the skills and experience required to ensure that you are back on the road with no hassle or worry.

Put Diesel in a Petrol Mercedes

Unintentionally put Diesel in a Petrol Mercedes? Or perhaps even put contaminated fuel in your Mercedes CLS 280?

Give us a call for Help & Advice

Give us a call and receive honest guidance and practical assistance for your specific circumstances

We come out and do the fuel drain

We would reach you to carry out the complete fuel removal & flush there on scene

All done & You Get Moving Again

Once 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 top rated wrong fuel drain experts in the UK, having nationwide service, for Mercedes motorists especially. We typically deal with:

  • Unleaded petrol in your Diesel Auto
  • Diesel in your Unleaded Petrol Vehicle
  • AdBlue contamination
  • Water contamination

We are Mercedes specialists and have successfully drained hundreds of Petrol Mercedes vehicles. Regardless of whether it is at the roadside, on a station forecourt, or even at your home, we can get you on the road once again.

The Process

The technique of removing Diesel from a Petrol car is generally the same for a large number of cars. Obviously it does vary a little as every make has their own fuel system. Having said that it still follows 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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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.

Get in Touch

In the event that you have any enquiries or want our assistance please Contact Us!
We are able to get you moving 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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