Wrong fuel in your Mercedes C180 CDI? Petrol in a Diesel Mercedes?

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Mercedes Fuel Drain


Filling Petrol in a Diesel Mercedes is a regularly occurring problem. And its solution is based on various things. Assuming you would like to know what it is advisable to do about this then read on.
Here are the most crucial factors to be aware of when figuring out whether to get the car drained:

  1. How much Petrol did you put in the Mercedes, taking into consideration that the fuel capacity of the Mercedes C180 CDI is usually approximately 59 litres?
    1. A modest quantity of Petrol, something like 2.95 litres of Petrol in a Diesel C180 CDI will quite often not really be a massive problem. Experience has taught us that anything less than 2.95 litres (which is close to 5% of the whole fuel tank volume) is often capable of being sufficiently diluted by wholly filling the rest of the tank with the appropriate fuel.
      It's pretty rare to find a car or truck suffering from issues because of less than 5% incorrect fuel contamination. Bear in mind that it is uncommon - certainly not impossible to encounter. There are a number of vehicles that won't stand any degree of fuel contamination at all.
    2. Anywhere between 2.95 and 5.9 litres of Petrol in the Mercedes (from 5 to 10%) is a 50/50 condition. Our working experience has revealed that as many motorists get away with this as those who break down. Whenever deciding whether or not to risk it and basically top it up consider that it is the same thing as betting your car on black - you have got a 50/50 possibility of it being ok.
    3. Anything above 5.9 litres of Petrol in your Diesel C180 CDI must immediately be removed as your probability of getting away with that quantity of contamination is probably below one in fifty - genuinely big odds.
  2. Put some Petrol in a Diesel Mercedes and drove it: Have you detected any performance issues since putting the wrong fuel in your C180 CDI? If so, get it removed irrespective of the volume of Petrol or the contamination ratio. Continuing to run running a vehicle that is already beginning to suffer from the effect of wrong fuel contamination will just lead to more damage affecting your fuel system parts.
  3. Are you interested in peace of mind?
    Then simply just get it drained. Regardless of contamination ratio, there is inevitably some degree of danger resulting from running a Diesel motor on Diesel contaminated with the wrong fuel. Probable final outcomes of driving a car on the incorrect fuel include things like the motor not starting, running lumpy, reduced power, wearing of the high-pressure pump, damaged or clogged injectors, and so on. These are some of the most typical Petrol in Diesel signs and symptoms, and if you detect any of them stop and have it drained asap.

Do not simply get any jack-of-all-trades to attend your automobile. We are Mercedes experts and have the qualifications and experience necessary to make certain that you are back on the road with minimal hassle or trouble.

Put Petrol in a Diesel Mercedes

Inadvertently put Petrol in a Diesel Mercedes? Or possibly even put contaminated fuel in your Mercedes C180 CDI?

Call us for Help & Guidance

Call us and obtain straightforward recommendations and practical assistance for your precise situation

We arrive and do a fuel drain

We are able to come to you to undertake the contaminated fuel removal & clean there on scene

All done & You Get Moving Again

Once we are done you should be 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 national coverage, for Mercedes motorists particularly. We principally attend to:

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

We are Mercedes specialists and have successfully drained hundreds of Diesel Mercedes vehicles. Even if it is roadside, on a filling station forecourt, or even at home, we can get you going again.

The Process

The technique of removing Petrol from a Diesel car is basically exactly the same for a large number of motor vehicles. Of course it does differ to some degree as every make has their own distinct fuel system. Nevertheless it still 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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Petrol in Diesel FAQs

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.

Call us

If you have any concerns or require help please Contact Us!
We can get you on the road once 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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