Wrong fuel in a Mercedes E320 CDI? Petrol in a Diesel Mercedes?

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Mercedes Fuel Drain


Filling up with Petrol in a Diesel Mercedes is a usual problem. And its solution is based on a variety of factors. If you would like to know what you must do about it then keep reading.
Listed here the most important factors to to consider when deciding whether or not to get your car drained:

  1. Exactly how much Petrol did you put in the Mercedes, bearing in mind that the fuel tank capacity of your Mercedes E320 CDI is usually about 65 litres?
    1. A modest quantity of Petrol, less than 3.25 litres of Petrol in a Diesel E320 CDI will quite often not necessarily be a major problem. Experience has taught us that anything less than 3.25 litres (which is approximately 5% of the fuel tank capacity) is quite often capable of being sufficiently diluted through totally topping up the remainder of the tank with Diesel.
      It is rather unusual to come across an automobile going through problems because of under 5% incorrect fuel contamination. Keep in mind it's unusual - certainly not impossible to find. You can get some motor vehicles that don't stand any quantity of contamination whatsoever.
    2. Between 3.25 and 6.5 litres of Petrol in the Mercedes (from 5 to 10%) is really a 50/50 scenario. Our practical experience has confirmed that as many people get away with this as those people who break down. Whenever figuring out whether or not to chance it and just simply top it up remember that it is the same thing as betting it all on black - you've got a 50/50 chance of it being ok.
    3. Anything in excess of 6.5 litres of Petrol in your Diesel E320 CDI should straightaway be removed since your likelihood of driving with that level of contamination is certainly lower than one in fifty - seriously long odds.
  2. Put some Petrol in a Diesel Mercedes and drove it: Have you spotted any performance concerns ever since putting the bad fuel in your E320 CDI? In that case, have it removed regardless of the volume of Petrol or the contamination percentage. Proceeding to drive running a motor vehicle that is starting to suffer from the effects of fuel contamination will likely be responsible for increasing amounts of damage being done to your fuel system components.
  3. Do you want reassurance?
    Simply get it drained. Whatever the contamination ratio, there is invariably some degree of threat connected to driving a Diesel vehicle on Diesel contaminated with Petrol. Likely final outcomes of driving on the wrong fuel include the motor refusing to start, running lumpy, losing power, degradation of the high-pressure pump, worn out or clogged injectors, and the like. These are a few of the most common Petrol in Diesel signs and symptoms, and should you detect any of them then cease driving and get it drained right away.

Do not simply have any jack-of-all-trades to attend your car. We are Mercedes specialists and possess the accreditation and knowledge required to ensure that you are back on the road with a minimum of hassle or worry.

Put Petrol in a Diesel Mercedes

Inadvertently put Petrol in a Diesel Mercedes? Or possibly even put contaminated fuel in your Mercedes E320 CDI?

Give us a call for Help & Recommendations

Give us a call and receive straightforward advice and sensible help for your particular circumstance

We arrive and do a fuel drain

We are able to reach you to perform the full contaminated fuel retrieval & flush there on scene

Once completed You Get Going Again

When we have completed you are able to get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain experts in the UK, having national service, for Mercedes motorists particularly. We principally fix:

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

We are Mercedes specialists and have successfully drained hundreds of Diesel Mercedes vehicles. Whether it's roadside, on a petrol station forecourt, or even at your house, we are able to get you moving once again.

The Procedure

The technique of draining Petrol from a Diesel car is generally similar for most vehicle makes. Naturally it may differ a little as every brand has their particular different fuel system. However it still fundamentally adheres to 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.

Get in Touch

In case you have any enquiries or require assistance please Call us!
We are able to get you moving 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

Weekdays: 9am to 5pm

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