Contaminated fuel in your Mercedes B160? Diesel in a Petrol Mercedes?

We can help!
Call us: 0333 366 0103
Mercedes Fuel Drain


Filling up with Diesel in a Petrol Mercedes is a very common error. And its solution will depend on a number of things. If you want to know what you must do to sort it out then stay with me.
Listed here are the main factors to keep in mind whenever choosing whether or not to get a fuel drain:

  1. What amount of Diesel have you put in to the Mercedes, taking into account that the fuel tank capacity of the Mercedes B160 is most likely around 54 litres?
    1. A small quantity of Diesel, less than 2.7 litres of Diesel in a Petrol B160 will generally not necessarily be a major problem. Experience has proven to us that an amount under 2.7 litres (which is about 5% of the total fuel tank capacity) is quite often capable of being completely diluted through entirely topping up the rest of the tank with the appropriate fuel.
      It's quite uncommon to come across an automobile going through difficulties due to lower than 5% wrong fuel contamination. Bear in mind that it's uncommon - in no way impossible to find. You can get a few automobiles that will not stand any amount of fuel contamination whatsoever.
    2. Anywhere between 2.7 and 5.4 litres of Diesel in the Mercedes (5 to 10%) is a 50/50 condition. Our experience demonstrates that as many people get away with it as those people who break down. When you are trying to decide whether or not to risk it and simply fill it up remember that it is exactly like gambling your car on black - you have got a 50/50 possibility of it working.
    3. Anything in excess of 5.4 litres of Diesel in your Petrol B160 should really right away be removed since your likelihood of getting away with that amount of contamination is very likely lower than one in 50 - definitely long odds.
  2. Put Diesel in a Petrol Mercedes and drove it: Have you seen any kind of performance troubles ever since putting the wrong fuel in your B160? If that's the case, have it emptied irrespective of the amount of Diesel or the contamination percentage. Continually driving a motor vehicle that is now starting to suffer from the effect of fuel contamination will just bring about even more damage being caused to the fuel system.
  3. Do you need reassurance?
    In that case get it removed. Regardless of contamination ratio, there is always some degree of threat associated with operating a Petrol engine on fuel contaminated with the incorrect fuel. Possible outcomes of driving a car on the incorrect fuel can include the engine refusing to start, running lumpy, lack of power, wearing of the high-pressure pump, worn out or blocked injectors, and so on. These are a few of the commonest Diesel in Petrol signs or symptoms, and in the event that you detect any of them then stop and get it drained as soon as possible.

Don't simply have any jack-of-all-trades to try to fix your vehicle. We are Mercedes experts and have the skills and knowledge needed to make certain that you get back on the road with minimal hassle or worry.

Put Diesel in a Petrol Mercedes

Mistakenly put Diesel in a Petrol Mercedes? Or even put contaminated fuel in your Mercedes B160?

Call us for Assistance & Guidance

Give us a call and obtain honest advice and sensible help for your precise situation

We come out and do the fuel drain

We would reach you to undertake the complete contaminated fuel removal & cleanse right there on scene

Once performed You Get Moving Again

As soon as we have completed you will be able to get back moving and get on with your day

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain experts in the UK, boasting nationwide coverage, for Mercedes motorists particularly. We principally deal with:

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

We are Mercedes specialists and have successfully drained thousands of Petrol Mercedes vehicles. Even if it's at the roadside, on a station forecourt, or even at your home, we are able to get you moving again.

The Procedure

The technique of draining Diesel from a Petrol vehicle is generally exactly the same for the vast majority of cars. Obviously it can differ slightly as each brand has their own different fuel system. Even so it still basically adheres to the following points:

Petrol in Diesel Mercedes

Fuel Drain

Empty the Fuel Tank

View more
Wrong Fuel Drain Mercedes

System Flush

Clean out the fuel lines & pumps

View more
Petrol in Diesel Drain Mercedes

Vehicle Restart

Get the car up and running again

View more


Hours a Day


Days a Week





Our Partners

Just some of the few people we work with to bring you the best petrol in diesel service possible

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 concerns or require help please Contact Us!
We can get you moving again.

24 hour Mercedes Helpline

0333 366 0103

Our Corporate Office

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

Important Info

Fully Insured

VAT Registered

APEX Certified


Fully Mobile

Professionally Trained