Wrong fuel in your Mercedes SL 320? Diesel in your Petrol Mercedes?

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Mercedes Fuel Drain


Filling up with Diesel in a Petrol Mercedes is a regularly occurring problem. And its solution is dependent upon several things. If you would like to find out what you ought to do to sort it out then please read on.
Let us discuss the key variables to keep in mind whenever deciding on whether or not to have it drained:

  1. What level of Diesel have you put in the Mercedes, considering that the fuel capacity of the Mercedes SL 320 is usually about 80 litres?
    1. Hardly any Diesel, less than 4 litres of Diesel in a Petrol SL 320 will generally not really be a major problem. Experience has demonstrated to us that anything less than 4 litres (which is close to 5% of the entire fuel tank capacity) is sometimes capable of being adequately diluted through entirely topping up the rest of the tank with Petrol.
      It is relatively unusual to come across a vehicle having issues with less than 5% wrong fuel contamination. Bear in mind that it is very unusual - in no way impossible to encounter. There are some cars that will not endure any level of fuel contamination in the slightest.
    2. In between 4 and 8 litres of Diesel in the Mercedes (from 5 to 10%) is a 50/50 scenario. Our expertise has confirmed that as many people get away with this as those people who break down. Whenever deciding upon whether to risk it and basically top it up bear in mind that it is the same thing as gambling your car on black - you have a 50/50 chance of it working out.
    3. Anything in excess of 8 litres of Diesel in your Petrol SL 320 should really as soon as possible be drained since your likelihood of succeeding with that quantity of contamination is undoubtedly below one in 50 - truly huge odds.
  2. Put Diesel in a Petrol Mercedes and drove it: Have you detected any kind of performance problems as a result of putting the incorrect fuel in the SL 320? In that case, get it drained no matter the volume of Diesel or the contamination ratio. Continuing to run driving a car that is currently beginning to suffer from the effect of fuel contamination will only lead to more damage being caused to the fuel system components.
  3. Do you need reassurance?
    Then get it drained. Regardless of contamination percentage, there is invariably some amount of danger caused by driving a Petrol motor on fuel contaminated with the incorrect fuel. Possible results of driving a car on the wrong fuel normally include the motor refusing to start, running unevenly, losing power, wearing of the high-pressure pump, worn or clogged injectors, and so on. These are several of the commonest Diesel in Petrol symptoms, and should you recognise any of them then stop and get it removed as soon as possible.

Avoid getting any jack-of-all-trades to attend your automobile. We are Mercedes experts and have got the accreditation and working experience needed to make sure that you get back on the road with minimum hassle or trouble.

Put Diesel in a Petrol Mercedes

By mistake put Diesel in a Petrol Mercedes? Or even put contaminated fuel in your Mercedes SL 320?

Contact us for Assistance & Recommendations

Contact us and obtain reliable guidance and practical help for your specific circumstances

We arrive and drain it

We are able to reach you to undertake the fuel retrieval & cleanse right there on scene

Once performed You Get Going Again

When we are done you can get back moving and get on with your trip

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain experts in the UK, offering nationwide coverage, for Mercedes motorists particularly. We primarily attend:

  • Unleaded petrol in your Diesel Auto
  • Diesel in 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 roadside, on a station forecourt, or even at your house, we are able to get you on the road again.

The Process

The technique of getting rid of Diesel from a Petrol car is fundamentally the same for the majority of vehicles. Obviously it does differ to some extent as each make has their own fuel system. Nevertheless it still fundamentally observes the below principles:

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.

Call us

If you have any enquiries or want help please Contact 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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