Contaminated fuel in a Mercedes E290 T Turbodiesel? Petrol in a Diesel Mercedes?

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


Putting Petrol in a Diesel Mercedes is a regularly occurring mistake to make. And its solution hinges on several things. If perhaps you would like to know what you should do to sort it out then keep reading.
Listed here are the key factors to be aware of whenever deciding on whether or not to have your car drained:

  1. Exactly how much Petrol did you put in to the Mercedes, bearing in mind that the fuel tank capacity of your Mercedes E290 T Turbodiesel is normally about 70 litres?
    1. Hardly any Petrol, something like 3.5 litres of Petrol in a Diesel E290 T Turbodiesel will generally not be a huge problem. Experience has demonstrated to us that anything less than 3.5 litres (5% of the total fuel tank) is often capable of being sufficiently diluted simply by wholly filling the remainder of the tank with the correct fuel.
      It is rather rare to find a car going through difficulties because of under 5% incorrect fuel contamination. Remember that it is very rare - in no way impossible to find. You can get a few cars that don't endure any level of contamination in the slightest.
    2. Between 3.5 and 7 litres of Petrol in the Mercedes (from 5 to 10%) is really a 50/50 condition. Our experience has revealed that as many drivers get away with this as all those who don't. Whenever deciding upon whether to risk it and just fill it up recognise that it is exactly like betting your car on black - you have got a 50/50 chance of it working.
    3. Anything over 7 litres of Petrol in your Diesel E290 T Turbodiesel should straightaway be removed since your likelihood of succeeding with that quantity of contamination is in all likelihood lower than one in 50 - definitely long odds.
  2. Put Petrol in a Diesel Mercedes and drove it: Have you observed any performance concerns after putting the wrong fuel in the E290 T Turbodiesel? If that's the case, get it emptied irrespective of the amount of Petrol or the contamination percentage. Proceeding to drive running a vehicle that is beginning to suffer from the consequences of fuel contamination can just end up in more and more harm affecting your fuel system parts.
  3. Do you need assurance?
    Then simply just get it removed. No matter the contamination percentage, there is always some extent of threat in connection with operating a Diesel engine on fuel contaminated with Petrol. Probable final outcomes of driving on the incorrect fuel normally include the motor not starting, running unevenly, lack of power, wearing of the high-pressure pump, worn out or blocked injectors, and so forth. These are a few of the most frequently seen Petrol in Diesel signs or symptoms, and if you recognise any of them stop and have it removed right now.

Stay away from getting any unqualified mechanic to try to repair your car. We are Mercedes experts and possess the credentials and working experience necessary to ensure you are back on the road with a minimum of hassle or worry.

Put Petrol in a Diesel Mercedes

Mistakenly put Petrol in a Diesel Mercedes? Or perhaps even put contaminated fuel in your Mercedes E290 T Turbodiesel?

Call us for Help & Guidance

Give us a call and obtain honest guidance and practical assistance for your exact situation

We come out and drain it

We are able to go to you to undertake the fuel retrieval & purge there on scene

Once carried out You Get Moving Again

When we have finished you should be able to get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain experts in the UK, offering countrywide service, for Mercedes motorists especially. We mostly attend to:

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

We are Mercedes specialists and have successfully drained thousands of Diesel Mercedes vehicles. No matter if it is roadside, on a station forecourt, or even at your house, we can get you going again.

The Procedure

The technique of draining Petrol from a Diesel car is essentially exactly the same for a large number of vehicle makes. As you can imagine it does vary somewhat as every make has their own distinct fuel system. However it still follows the below guidelines:

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.

Call us

In the event that you have any concerns or require help please Contact Us!
We are able to get you going again.

24 hour 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