Incorrect fuel in a Mercedes GLK 200 CDI? Petrol in a Diesel Mercedes?

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Mercedes Fuel Drain


Filling Petrol in a Diesel Mercedes is a regularly occurring problem. And its solution hinges on various things. In case you want to find out what it is advisable to do to fix it then read on.
Listed here are the most important factors to take into account when deciding on whether or not to get a fuel drain:

  1. How much Petrol have you put in to the Mercedes, taking into consideration that the fuel capacity of the Mercedes GLK 200 CDI is in most cases approximately 59 litres?
    1. A modest amount of Petrol, less than 2.95 litres of Petrol in a Diesel GLK 200 CDI will more often than not not be a huge problem. Experience has shown us that quantities under 2.95 litres (roughly 5% of the whole fuel tank) is often able to be adequately diluted by means of completely topping up the tank with Diesel.
      It is relatively uncommon to encounter a motor vehicle having difficulties due to lower than 5% wrong fuel contamination. Do not forget that it's infrequent - certainly not impossible to encounter. There are some automobiles that will not stand any degree of contamination in the slightest.
    2. Anywhere between 2.95 and 5.9 litres of Petrol in the Mercedes (5 to 10%) is a 50/50 scenario. Our experience has proven that as many drivers get away with it as all those who break down. Whenever you are deciding whether to risk it and basically top it up consider that it is just like gambling it all on black - you've got a 50/50 chance of it working.
    3. Anything more than 5.9 litres of Petrol in your Diesel GLK 200 CDI must immediately be drained out seeing as your likelihood of driving with that amount of contamination is probably lower than one in fifty - really huge odds.
  2. Put some Petrol in a Diesel Mercedes and drove it: Have you noticed any performance issues since putting the incorrect fuel in the GLK 200 CDI? If that's the case, have it drained no matter the amount of Petrol or the contamination ratio. Proceeding to drive running a vehicle that is starting to suffer the effect of fuel contamination can definitely result in even more harm affecting the fuel system.
  3. Are you looking for security?
    In that case get it removed. Whatever the contamination percentage, there is always some degree of danger caused by running a Diesel vehicle on Diesel contaminated with the incorrect fuel. Likely implications of driving on the incorrect fuel normally include the engine refusing to start, running lumpy, reduced power, wearing of the high-pressure pump, damaged or blocked injectors, and so on. These are several of the commonest Petrol in Diesel signs or symptoms, and should you notice any of them then stop driving and get it removed asap.

Stay away from having any unqualified mechanic to try to repair your automobile. We are Mercedes experts and hold the skills and experience needed to ensure you get back on the road with a minimum of hassle or worry.

Put Petrol in a Diesel Mercedes

Mistakenly put Petrol in a Diesel Mercedes? Or perhaps even put contaminated fuel in your Mercedes GLK 200 CDI?

Give us a call for Assistance & Advice

Call us and receive honest advice and sensible help for your precise circumstance

We come out and do the fuel drain

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

All done & You Get Moving Again

Once we are done you can get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain experts in the UK, having countrywide service, for Mercedes motorists in particular. We predominantly fix:

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

We are Mercedes specialists and have successfully drained thousands of Diesel Mercedes vehicles. Whether or not it is at the roadside, on a filling station forecourt, or even at your home, we are able to get you on the road once again.

The Process

The procedure of removing Petrol from a Diesel vehicle is fundamentally exactly the same for most vehicle makes. Naturally it can vary slightly as each brand has their particular fuel system. Nevertheless it still essentially adheres to the below 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.

Call us

In case you have any queries or need our assistance please Call us!
We are able to get you on the road 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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