Wrong fuel in your Mercedes C220? Diesel in a Petrol Mercedes?

We can help!
Call us: 0333 366 0103
Mercedes Fuel Drain


Filling up with Diesel in a Petrol Mercedes is a well-known error. And its solution will depend on various factors. If you want to find out what it is advisable to do to sort it out then please read on.
Right here are the most important factors to think about when deciding on whether to have it drained:

  1. What level of Diesel did you put into the Mercedes, taking into consideration that the fuel tank capacity of your Mercedes C220 is most likely roughly 62 litres?
    1. A small quantity of Diesel, less than 3.1 litres of Diesel in a Petrol C220 will typically not be a big problem. Experience has proven to us that an amount less than 3.1 litres (which is close to 5% of the whole fuel tank volume) is usually able to be completely diluted through wholly topping up the remainder of the tank with Petrol.
      It's relatively uncommon to come across a vehicle experiencing difficulties with under 5% wrong fuel contamination. Bear in mind that it's rare - in no way impossible to find. There are a number of motor vehicles that will not stand any level of fuel contamination in the slightest.
    2. Somewhere between 3.1 and 6.2 litres of Diesel in the Mercedes (5 to 10%) is a 50/50 condition. Our practical experience has demonstrated that as many drivers get away with it as those who don't. When you are deciding on whether or not to risk it and just fill it up bear in mind that it is very much like gambling your car on black - you've got a 50/50 chance of it being ok.
    3. Anything above 6.2 litres of Diesel in your Petrol C220 ought to right away be removed seeing as your likelihood of driving with this amount of contamination is almost certainly below one in fifty - really huge odds.
  2. Put some Diesel in a Petrol Mercedes and drove it: Have you observed any kind of performance troubles ever since putting the bad fuel in your C220? If you have, get it emptied regardless of the amount of Diesel or the contamination percentage. Continuing to drive running an automobile that is currently beginning to suffer from the effect of fuel contamination will probably only bring about increasing amounts of damage being done to the fuel system.
  3. Do you want assurance?
    In that case get it drained. Regardless of the contamination ratio, there is inevitably some degree of danger connected with running a Petrol motor on Petrol contaminated with Diesel. Possible outcomes of driving a car on the wrong fuel include the motor refusing to start, running unevenly, losing power, wearing of the high-pressure pump, damaged or bunged injectors, and so on. These are several of the most typical Diesel in Petrol signs or symptoms, and in the event that you detect any of them then stop driving and have it removed immediately.

Keep away from getting any unqualified so-and-so to try to fix your car. We are Mercedes experts and have the credentials and working experience needed to make certain you get back on the road with minimal hassle or worry.

Put Diesel in a Petrol Mercedes

Inadvertently put Diesel in a Petrol Mercedes? Or even put contaminated fuel in your Mercedes C220?

Call us for Assistance & Advice

Call us and receive reliable recommendations and sensible help for your particular circumstances

We show up and drain it

We can go to you to undertake the complete contaminated fuel removal & clean there on scene

Once performed You Get Going Again

Once we have finished you can get back on the road and get on with your trip

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain authorities in the UK, having national cover, for Mercedes motorists in particular. We mainly deal with:

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

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

The Process

The process of removing Diesel from a Petrol car is essentially identical for virtually all motor vehicles. Obviously it does vary a little as every brand has their unique fuel system. Nevertheless it still generally adheres to the below guidelines:

Petrol in Diesel Mercedes

Fuel Drain

Empty the Fuel Tank

View more
Wrong Fuel Drain Mercedes

System Flush

Clean out the fuel lines & pumps

View more
Petrol in Diesel Drain Mercedes

Vehicle Restart

Get the car up and running again

View more


Hours a Day


Days a Week





Our Partners

Just some of the few people we work with to bring you the best petrol in diesel service possible

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

In case you have any concerns or require our help please Call us!
We can get you on the road again.

24 hour Mercedes Helpline

0333 366 0103

Our Corporate Office

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


Important Info

Fully Insured

VAT Registered

APEX Certified


Fully Mobile

Professionally Trained