Wrong fuel in a Mercedes ML 230? Diesel in your Petrol Mercedes?

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Mercedes Fuel Drain


Filling up with Diesel in a Petrol Mercedes is a usual problem. And its remedy is determined by several factors. In case you would like to know what to do to fix it then keep reading.
Listed here are the main factors to think about when making a decision whether or not to have it drained:

  1. How much Diesel did you put in the Mercedes, considering that the fuel tank capacity of the Mercedes ML 230 is probably about 70 litres?
    1. Hardly any Diesel, something like 3.5 litres of Diesel in a Petrol ML 230 will quite often not really be a massive problem. Experience has demonstrated to us that anything under 3.5 litres (approximately 5% of the overall fuel tank capacity) is generally capable of being completely diluted simply by wholly filling up the rest of the tank with the appropriate fuel.
      It's extremely uncommon to come across a vehicle experiencing problems because of less than 5% wrong fuel contamination. Be aware that it is uncommon - in no way impossible to find. You can get a few vehicles that won't endure any degree of contamination in the slightest.
    2. Somewhere between 3.5 and 7 litres of Diesel in the Mercedes (5 to 10%) is really a 50/50 condition. Our expertise has demonstrated that as many drivers get away with it as those who break down. When figuring out whether to chance it and basically top it up bear in mind that it is very much like wagering your car on black - you will have a 50/50 possibility of it working.
    3. Anything more than 7 litres of Diesel in a Petrol ML 230 ought to right away be drained out seeing that your probability of succeeding with this amount of contamination is certainly lower than one in 50 - definitely huge odds.
  2. Put some Diesel in a Petrol Mercedes and drove it: Have you detected any performance difficulties ever since putting the bad fuel in the ML 230? In that case, get it emptied regardless of the quantity of Diesel or even the contamination ratio. Proceeding to drive driving a motor vehicle that is already starting to suffer from the effects of fuel contamination will probably typically result in increasing amounts of harm affecting the fuel system components.
  3. Are you interested in assurance?
    Simply get it removed. Regardless of contamination percentage, there is invariably some amount of danger affiliated with operating a Petrol vehicle on Petrol contaminated with the incorrect fuel. Likely implications of driving on the incorrect fuel include things like the motor not starting, running lumpy, losing power, wearing of the high-pressure pump, worn or blocked injectors, etc. These are some of the most typical Diesel in Petrol signs and symptoms, and in the event that you detect any of them stop driving and get it drained asap.

Do not simply have any unqualified mechanic to attend your vehicle. We are Mercedes specialists and have got the skills and knowledge needed to make certain that 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 ML 230?

Call us for Assistance & Guidance

Give us a call and receive genuine recommendations and sensible help for your specific circumstance

We show up and do the fuel drain

We would go to you to do the contaminated fuel retrieval & clean there on scene

Once carried out You Get Moving Again

When we have finished you are able to get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain specialists in the UK, having national coverage, for Mercedes motorists especially. We predominantly attend:

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

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

The Procedure

The system of removing Diesel from a Petrol vehicle is generally identical for the vast majority of motor vehicles. Of course it may vary somewhat as every make has their particular distinct fuel system. Having said that 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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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.

Get in Touch

If you have any concerns or want some help please Call us!
We can get you going 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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