Bad fuel in a Mercedes GL 320 CDI? Petrol in your Diesel Mercedes?

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Mercedes Fuel Drain


Filling Petrol in a Diesel Mercedes is a common error. And its remedy is dependent upon several different things. If perhaps you want to find out what you must do about this then stay with me.
Right here are the main factors to take into account whenever figuring out whether to get the car drained:

  1. How much Petrol have you put in to the Mercedes, considering that the fuel capacity of your Mercedes GL 320 CDI is probably roughly 100 litres?
    1. A small amount of Petrol, as little as 5 litres of Petrol in a Diesel GL 320 CDI will usually not necessarily be a significant problem. Experience has taught us that quantities less than 5 litres (close to 5% of the entire fuel tank volume) is quite often able to be completely diluted by means of totally filling up the tank with Diesel.
      It is pretty rare to encounter a car or truck experiencing difficulties because of less than 5% wrong fuel contamination. Please remember it is uncommon - in no way impossible to find. There are a number of vehicles that don't stand any amount of fuel contamination whatsoever.
    2. Anywhere between 5 and 10 litres of Petrol in the Mercedes (from 5 to 10%) is a 50/50 situation. Our experience demonstrates that as many people get away with it as all those who break down. Whenever deciding upon whether to chance it and just simply fill it up bear in mind that it is very much like gambling your car on black - you have got a 50/50 possibility of it being ok.
    3. Anything over 10 litres of Petrol in your Diesel GL 320 CDI ought to immediately be drained seeing as your likelihood of driving with this amount of contamination is in all likelihood lower than one in 50 - truly long odds.
  2. Put Petrol in a Diesel Mercedes and drove it: Have you detected any kind of performance problems since putting the bad fuel in your GL 320 CDI? If that's the case, get it emptied no matter the amount of Petrol or even the contamination ratio. Continuing to drive driving a vehicle that is already beginning to suffer from the effect of wrong fuel contamination can definitely result in more damage being caused to your fuel system parts.
  3. Do you need reassurance?
    You should get it removed. Regardless of contamination percentage, there is always some amount of danger connected to operating a Diesel motor on Diesel contaminated with Petrol. Likely consequences of driving a vehicle on the wrong fuel include the engine not starting, running unevenly, reduced power, degradation of the high-pressure pump, worn or bunged injectors, and so forth. These are a few of the most typical Petrol in Diesel signs or symptoms, and if you notice any of them then stop and have it removed asap.

Stay away from having any untrained so-and-so to try to drain your car. We are Mercedes experts and hold the skills and knowledge necessary to make sure that you are back on the road with little hassle or trouble.

Put Petrol in a Diesel Mercedes

Accidentally put Petrol in a Diesel Mercedes? Or even put contaminated fuel in your Mercedes GL 320 CDI?

Give us a call for Help & Guidance

Call us and get honest advice and sensible assistance for your specific situation

We show up and drain it

We are able to go to you to undertake the full contaminated fuel drain & purge right there on scene

Once done You Get Going Once again

As soon as we are done you are 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, boasting nationwide cover, for Mercedes motorists in particular. We predominantly attend to:

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

We are Mercedes specialists and have successfully drained thousands of Diesel Mercedes vehicles. No matter if it's roadside, on a petrol station forecourt, or even at home, we can get you on the road again.

The Process

The system of getting rid of Petrol from a Diesel car is in essence exactly the same for a large number of vehicle makes. As you can imagine it can vary to some extent as every make has their unique fuel system. Nevertheless it still basically observes the following guidelines:

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.

Contact Us

In case you have any concerns or require some assistance please Call us!
We are able to get you going again.

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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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