Contaminated fuel in your Mercedes S500 Coupe? Diesel in a Petrol Mercedes?

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Mercedes Fuel Drain


Filling up with Diesel in a Petrol Mercedes is a usual error. And its remedy depends upon a number of things. In the event that you want to find out what it is advisable to do to fix it then continue reading.
These are the most crucial variables to think about whenever deciding on whether or not to have a fuel drain:

  1. What amount of Diesel did you put into the Mercedes, taking into account that the fuel capacity of your Mercedes S500 Coupe is in most cases around 100 litres?
    1. Hardly any Diesel, something like 5 litres of Diesel in a Petrol S500 Coupe will usually not really be a major problem. Experience has proven to us that anything under 5 litres (almost 5% of the total fuel tank) is sometimes able to be sufficiently diluted simply by wholly filling the remainder of the tank with the right fuel.
      It is quite unusual to come across a car having difficulties because of lower than 5% wrong fuel contamination. Keep in mind that it is very infrequently found - certainly not impossible to find. There are a few vehicles that don't endure any quantity of fuel contamination at all.
    2. Between 5 and 10 litres of Diesel in the Mercedes (5 to 10%) is really a 50/50 scenario. Our expertise has shown that as many drivers get away with it as all those who break down. Any time you're deciding whether to risk it and just simply top it up consider that it is very much like wagering everything on black - you have a 50/50 chance of it working out.
    3. Anything above 10 litres of Diesel in a Petrol S500 Coupe should really right away be removed seeing that your likelihood of getting away with this quantity of contamination is undoubtedly lower than one in 50 - seriously long odds.
  2. Put Diesel in a Petrol Mercedes and drove it: Have you noted any kind of performance problems ever since putting the incorrect fuel in your S500 Coupe? If so, have it removed no matter the amount of Diesel or even the contamination ratio. Continually driving a motor vehicle that is beginning to suffer from the effect of wrong fuel contamination will just cause more damage being caused to the fuel system parts.
  3. Are you looking for security?
    Simply get it removed. No matter the contamination percentage, there is always a certain level of danger affiliated with driving a Petrol motor on fuel contaminated with Diesel. Probable implications of driving on the incorrect fuel include the engine refusing to start, running lumpy, reduced power, wearing of the high-pressure pump, worn out or clogged 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 cease driving and have it removed right away.

Keep away from having any unqualified mechanic to try to fix your car. We are Mercedes experts and have the accreditation and knowledge necessary to ensure that you get back on the road with a minimum of hassle or worry.

Put Diesel in a Petrol Mercedes

Accidentally put Diesel in a Petrol Mercedes? Or possibly even put contaminated fuel in your Mercedes S500 Coupe?

Call us for Assistance & Guidance

Give us a call and obtain straightforward guidance and practical assistance for your particular situation

We arrive and do a fuel drain

We can reach you to do the complete contaminated fuel drain & cleanse there on scene

All done & You Get Moving Again

As soon as we are done you should be 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 authorities in the UK, boasting national service, for Mercedes motorists particularly. We principally attend to:

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

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

The Process

The process of extracting Diesel from a Petrol car is fundamentally similar for virtually all vehicles. Obviously it does differ a bit as every make has their unique fuel system. Nevertheless it still adheres to 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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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.

Call us

In case you have any questions or require our help please Contact Us!
We can get you moving once 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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