Bad fuel in a Mercedes C180? Diesel in a Petrol Mercedes?

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Mercedes Fuel Drain


Filling up with Diesel in a Petrol Mercedes is a regular error. And exactly what you need to do about it is dependent upon a few factors. If you want to find out what to do about this then continue reading.
Right here are the key factors to consider whenever deciding on whether to have a fuel drain:

  1. What level of Diesel did you put in to the Mercedes, bearing in mind that the fuel tank capacity of the Mercedes C180 is probably around 62 litres?
    1. Hardly any Diesel, as little as 3.1 litres of Diesel in a Petrol C180 will generally not be a major problem. Experience has shown us that quantities less than 3.1 litres (roughly 5% of the whole fuel tank capacity) is usually capable of being adequately diluted simply by thoroughly filling the tank with Petrol.
      It is extremely unusual to encounter a vehicle having issues due to less than 5% wrong fuel contamination. Please remember it is very infrequent - definitely not impossible to find. You can get a number of motor vehicles that won't stand any degree of fuel contamination in the slightest.
    2. In between 3.1 and 6.2 litres of Diesel in the Mercedes (5 to 10%) is a 50/50 situation. Our expertise has demonstrated that as many drivers get away with this as those people who break down. Whenever you are trying to decide whether or not to chance it and just top it up recognise that it is very much like gambling all of it on black - you've got a 50/50 possibility of it working out.
    3. Anything over 6.2 litres of Diesel in your Petrol C180 should really as soon as possible be removed since your likelihood of getting away with this amount of contamination is almost certainly less than one in fifty - definitely huge odds.
  2. Put Diesel in a Petrol Mercedes and drove it: Have you detected any performance troubles after putting the incorrect fuel in the C180? If so, have it drained regardless of the volume of Diesel or the contamination ratio. Still running a motor vehicle that is beginning to suffer the consequences of wrong fuel contamination will likely result in progressively more damage being done to the fuel system parts.
  3. Do you need security?
    In that case get it drained. Whatever the contamination ratio, there is always a certain level of risk affiliated with driving a Petrol motor on fuel contaminated with Diesel. Probable final outcomes of driving on the wrong fuel normally include the motor not starting, running lumpy, loss of power, wearing of the high-pressure pump, worn or clogged injectors, and so on. These are some of the commonest Diesel in Petrol symptoms, and should you notice any of them then stop and get it drained as soon as possible.

Refrain from having any unqualified mechanic to try to repair your car. We are Mercedes experts and have the credentials and knowledge needed to ensure that you are back on the road with little hassle or worry.

Put Diesel in a Petrol Mercedes

Unintentionally put Diesel in a Petrol Mercedes? Or perhaps even put contaminated fuel in your Mercedes C180?

Call us for Assistance & Recommendations

Contact us and receive honest advice and sensible assistance for your exact circumstance

We show up and do a fuel drain

We can reach you to do the full contaminated fuel drain & flush there on scene

All done & You Get Going Once again

Once we have finished you are able to get back moving and get on with your day

Wrong Fuel Drain Specialists

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

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

We are Mercedes specialists and have successfully drained hundreds of Petrol Mercedes vehicles. Whether it's at the roadside, on a petrol station forecourt, or even at your house, we are able to get you going once again.

The Procedure

The procedure of removing Diesel from a Petrol vehicle is generally exactly the same for most cars. Of course it can differ to some degree as every manufacturer has their own different fuel system. Even so it still generally adheres to 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.

Contact Us

Should you have any queries or want some assistance please Contact Us!
We are able to get you moving once again.

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0333 366 0103

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Fuel Fixer Ltd, Linx House, 147 London Road, East Grinstead, RH19 1ET

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