Incorrect fuel in your Mercedes B160 CDI? Petrol in a Diesel Mercedes?

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


Putting Petrol in a Diesel Mercedes is a usual error. And exactly what you need to do about it is based on a variety of things. If perhaps you would like to find out what it is best to do about it then keep on reading.
Here are the main factors to consider when figuring out whether to get a fuel drain:

  1. Exactly how much Petrol have you put into the Mercedes, keeping in mind that the fuel capacity of your Mercedes B160 CDI is in most cases about 50 litres?
    1. A modest quantity of Petrol, less than 2.5 litres of Petrol in a Diesel B160 CDI will most of the time not necessarily be a significant problem. Experience has taught us that anything under 2.5 litres (roughly 5% of the overall fuel tank capacity) is generally able to be sufficiently diluted through totally filling up the remainder of the tank with the correct fuel.
      It is rather rare to encounter an automobile having difficulties due to lower than 5% incorrect fuel contamination. Do not forget that it is uncommon - in no way impossible to find. You will discover a number of cars that will not stand any degree of fuel contamination whatsoever.
    2. In between 2.5 and 5 litres of Petrol in the Mercedes (5 to 10%) is more of a 50/50 condition. Our working experience has confirmed that as many motorists get away with this as all those who break down. Any time you're figuring out whether to risk it and simply fill it up recognise that it is much like gambling it all on black - you've got a 50/50 chance of it working out.
    3. Anything more than 5 litres of Petrol in a Diesel B160 CDI should promptly be removed as your probability of driving with this quantity of contamination is almost certainly below one in 50 - seriously long odds.
  2. Put Petrol in a Diesel Mercedes and drove it: Have you seen any kind of performance difficulties ever since putting the wrong fuel in your B160 CDI? If you have, get it emptied irrespective of the quantity of Petrol or even the contamination ratio. Still running an automobile that is beginning to suffer the effect of wrong fuel contamination will probably just lead to more and more harm affecting your fuel system components.
  3. Do you need peace of mind?
    You should get it emptied. No matter the contamination ratio, there is always a certain level of threat caused by running a Diesel engine on fuel contaminated with the incorrect fuel. Likely outcomes of driving a vehicle on the wrong fuel normally include the engine not starting, running lumpy, losing power, degradation of the high-pressure pump, damaged or clogged injectors, and the like. These are a few of the commonest Petrol in Diesel signs and symptoms, and should you recognise any of them stop and get it drained as soon as possible.

Stay away from having any unqualified mechanic to try to drain your automobile. We are Mercedes experts and hold the certification and experience required to make sure that you are back on the road with minimal hassle or worry.

Put Petrol in a Diesel Mercedes

By mistake put Petrol in a Diesel Mercedes? Or perhaps even put contaminated fuel in your Mercedes B160 CDI?

Call us for Assistance & Recommendations

Give us a call and get straightforward recommendations and sensible assistance for your exact circumstance

We arrive and drain it

We are able to reach you to do the full fuel removal & purge right there on scene

Once completed You Get Moving Again

Once we are done you are able to get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain professionals in the UK, having national cover, for Mercedes motorists particularly. We primarily attend to:

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

We are Mercedes specialists and have successfully drained thousands of Diesel Mercedes vehicles. No matter if it is at the roadside, on a filling station forecourt, or even at home, we are able to get you going once again.

The Process

The system of extracting Petrol from a Diesel car is basically similar for a large number of motor vehicles. Obviously it does differ a bit as each manufacturer has their particular distinct fuel system. Having said that it still essentially follows 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

Petrol in Diesel Questions

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.

Get in Touch

In case you have any queries or need some assistance please Contact Us!
We are able to get you going 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

Important Info

Fully Insured

VAT Registered

APEX Certified


Fully Mobile

Professionally Trained