Incorrect fuel in a Mercedes A170? Diesel in a Petrol Mercedes?

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Mercedes Fuel Drain


Putting Diesel in a Petrol Mercedes is a usual mistake to make. And its remedy depends on several factors. If you would like to know what it is advisable to do to sort it out then read on.
Here are the main variables to be aware of when choosing whether to get a fuel drain:

  1. What amount of Diesel have you put in to the Mercedes, considering that the fuel capacity of the Mercedes A170 is usually approximately 54 litres?
    1. Hardly any Diesel, less than 2.7 litres of Diesel in a Petrol A170 will in most cases not be a big problem. Experience has demonstrated to us that anything less than 2.7 litres (roughly 5% of the overall fuel tank) is generally able to be completely diluted through wholly topping the rest of the tank with the correct fuel.
      It is highly uncommon to come across a motor vehicle experiencing difficulties with lower than 5% incorrect fuel contamination. Please remember it is very infrequently found - definitely not impossible to encounter. There are certain automobiles that will not stand any degree of fuel contamination whatsoever.
    2. Between 2.7 and 5.4 litres of Diesel in the Mercedes (5 to 10%) is a 50/50 condition. Our practical experience has proven that as many people get away with it as those people who break down. Whenever you are figuring out whether to risk it and just simply top it up remember that it is exactly like betting everything on black - you have a 50/50 chance of it being ok.
    3. Anything over 5.4 litres of Diesel in a Petrol A170 really should straight away be drained out since your probability of succeeding with this amount of contamination is very likely less than one in fifty - extremely big odds.
  2. Put Diesel in a Petrol Mercedes and drove it: Have you noticed any kind of performance difficulties ever since putting the wrong fuel in the A170? In that case, get it drained regardless of the amount of Diesel or the contamination ratio. Proceeding to run driving a car that is now beginning to suffer the effect of wrong fuel contamination will definitely be responsible for more damage being caused to the fuel system components.
  3. Are you interested in security?
    You should get it drained. No matter the contamination ratio, there is always some degree of threat connected to operating a Petrol motor on Petrol contaminated with Diesel. Likely consequences of driving on the incorrect fuel normally include the engine refusing to start, running unevenly, loss of power, degradation of the high-pressure pump, worn or bunged injectors, and so forth. These are some of the most typical Diesel in Petrol warning signs, and should you detect any of them then stop and have it removed immediately.

Avoid having any jack-of-all-trades to attend your vehicle. We are Mercedes experts and possess the skills and expertise needed to make certain you are back on the road with a minimum of hassle or worry.

Put Diesel in a Petrol Mercedes

Inadvertently put Diesel in a Petrol Mercedes? Or perhaps even put contaminated fuel in your Mercedes A170?

Call us for Help & Guidance

Contact us and obtain sincere advice and practical help for your particular circumstance

We show up and drain it

We are able to come to you to carry out the full fuel retrieval & purge right there on scene

All done & You Get Going Once again

Once we have finished you will be able to get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain specialists in the UK, having countrywide cover, for Mercedes motorists in particular. We principally attend to:

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

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

The Process

The procedure of removing Diesel from a Petrol car is fundamentally exactly the same for a large number of vehicles. Needless to say it can vary a little as every brand has their own fuel system. Even so it still basically follows the following 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 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.

Get in Touch

If you have any enquiries or need some help please Contact Us!
We can get you on the road 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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