Incorrect fuel in your Mercedes CLS 350? Diesel in a Petrol Mercedes?

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Mercedes Fuel Drain


Filling Diesel in a Petrol Mercedes is a fairly typical problem. And its solution is based on a number of things. Assuming you would like to know what you should do to fix it then continue reading.
Right here are the key factors to to consider when deciding whether or not to get it drained:

  1. Exactly how much Diesel have you put into the Mercedes, taking into account that the fuel capacity of the Mercedes CLS 350 is in most cases around 80 litres?
    1. A modest amount of Diesel, something like 4 litres of Diesel in a Petrol CLS 350 will in most situations not really be a big problem. Experience has proven to us that quantities under 4 litres (which is 5% of the overall fuel tank) is often able to be adequately diluted through entirely topping up the tank with Petrol.
      It is pretty rare to come across a car or truck suffering from problems because of lower than 5% incorrect fuel contamination. Please remember it is very rare - in no way impossible to find. There are actually certain vehicles that won't endure any quantity of fuel contamination at all.
    2. Anywhere between 4 and 8 litres of Diesel in the Mercedes (5 to 10%) is really a 50/50 situation. Our experience has proven that as many people get away with it as those who don't. Whenever you are deciding on whether or not to chance it and simply fill it up remember that it is much like gambling everything on black - you have a 50/50 chance of it working.
    3. Anything in excess of 8 litres of Diesel in a Petrol CLS 350 should right away be removed since your probability of succeeding with this quantity of contamination is almost certainly lower than one in fifty - truly long odds.
  2. Put some Diesel in a Petrol Mercedes and drove it: Have you detected any kind of performance concerns as a result of putting the bad fuel in your CLS 350? If so, have it emptied no matter the quantity of Diesel or the contamination percentage. Continuing to drive running an automobile that is starting to suffer from the effect of wrong fuel contamination will just lead to more and more harm affecting your fuel system.
  3. Would you like assurance?
    You should get it drained. Regardless of the contamination ratio, there is inevitably some degree of danger resulting from driving a Petrol vehicle on Petrol contaminated with the wrong fuel. Probable results of driving on the wrong fuel normally include the motor not starting, running lumpy, decrease in power, wearing of the high-pressure pump, damaged or blocked injectors, and so forth. These are several of the most common Diesel in Petrol warning signs, and should you recognise any of them stop and have it drained right away.

Don't simply get any unqualified so-and-so to try to fix your automobile. We are Mercedes experts and possess the qualifications and knowledge required to ensure you are back on the road with a minimum of hassle or trouble.

Put Diesel in a Petrol Mercedes

Accidentally put Diesel in a Petrol Mercedes? Or even put contaminated fuel in your Mercedes CLS 350?

Contact us for Assistance & Guidance

Call us and receive reliable advice and practical assistance for your exact circumstance

We show up and do the fuel drain

We can reach you to do the full contaminated fuel removal & flush right there on scene

Once performed You Get Going Once again

As soon as we have completed you should be able to get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain professionals in the UK, boasting countrywide coverage, for Mercedes motorists especially. We predominantly attend to:

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

We are Mercedes specialists and have successfully drained thousands of Petrol Mercedes vehicles. Even if it's roadside, on a petrol station forecourt, or even at your house, we are able to get you on the road again.

The Process

The method of getting rid of Diesel from a Petrol car is generally the same for a large number of cars. Of course it may vary to some degree as every brand has their unique fuel system. Nevertheless it still generally 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.

Call us

Should you have any concerns or need our help please Call us!
We are able to get you going again.

24 hour 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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