Incorrect fuel in a Mercedes GLK 300? Diesel in your Petrol Mercedes?

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Mercedes Fuel Drain


Putting Diesel in a Petrol Mercedes is a regular error. And what you want to do about it depends upon a variety of things. If perhaps you would like to know what you must do to fix it then read on.
These are the most crucial variables to to consider whenever choosing whether to have your car drained:

  1. What level of Diesel did you put in to the Mercedes, considering that the fuel capacity of the Mercedes GLK 300 is most likely about 59 litres?
    1. A modest amount of Diesel, less than 2.95 litres of Diesel in a Petrol GLK 300 will normally not really be a major problem. Experience has proven to us that anything under 2.95 litres (which is close to 5% of the total fuel tank) is sometimes able to be sufficiently diluted by means of wholly topping the rest of the tank with Petrol.
      It is quite unusual to come across a motor vehicle going through difficulties because of less than 5% wrong fuel contamination. Keep in mind that it's infrequently found - not impossible to find. You will discover certain automobiles that don't stand any amount of fuel contamination whatsoever.
    2. Somewhere between 2.95 and 5.9 litres of Diesel in the Mercedes (from 5 to 10%) is a 50/50 situation. Our experience has revealed that as many drivers get away with it as those people who don't. Any time you're deciding whether to chance it and simply fill it up consider that it is much like betting all of it on black - you will have a 50/50 possibility of it working.
    3. Anything over 5.9 litres of Diesel in your Petrol GLK 300 ought to promptly be drained because your probability of succeeding with this level of contamination is almost certainly lower than one in 50 - definitely long odds.
  2. Put Diesel in a Petrol Mercedes and drove it: Have you seen any performance difficulties after putting the incorrect fuel in the GLK 300? If you have, get it emptied no matter the volume of Diesel or the contamination percentage. Continuing to run driving a motor vehicle that is now starting to suffer from the effects of wrong fuel contamination will probably typically end up in progressively more harm being caused to your fuel system components.
  3. Do you need peace of mind?
    Simply get it removed. Regardless of contamination percentage, there is invariably some amount of threat associated with running a Petrol motor on Petrol contaminated with Diesel. Possible results of driving on the wrong fuel can include the motor not starting, running lumpy, reduced power, degradation of the high-pressure pump, worn or clogged injectors, and so on. These are some of the most typical Diesel in Petrol symptoms, and in the event that you detect any of them then stop and get it drained right away.

Avoid having any jack-of-all-trades to try to drain your automobile. We are Mercedes experts and have the certification and experience required to make certain that you get back on the road with a minimum of 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 GLK 300?

Give us a call for Assistance & Advice

Contact us and get honest recommendations and sensible help for your precise situation

We show up and do the fuel drain

We can reach you to carry out the full contaminated fuel removal & purge there on scene

All done & You Get Moving Once again

When we have finished you can get back moving and get on with your trip

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain experts in the UK, boasting countrywide service, for Mercedes motorists especially. We principally attend to:

  • Unleaded petrol in a Diesel Vehicle
  • Diesel in an Unleaded Petrol Car
  • AdBlue contamination
  • Water contamination

We are Mercedes specialists and have successfully drained hundreds of Petrol Mercedes vehicles. No matter if it is at the roadside, on a filling station forecourt, or even at home, we are able to get you on the road once again.

The Process

The process of draining Diesel from a Petrol car is essentially identical for the majority of vehicles. Obviously it may differ somewhat as every make has their particular distinct fuel system. Having said that it still basically adheres to 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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Diesel in Petrol FAQs

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

Should you have any enquiries or require our assistance please Contact Us!
We can 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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