Contaminated fuel in your Mercedes CL65 AMG? Diesel in a Petrol Mercedes?

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Mercedes Fuel Drain


Filling Diesel in a Petrol Mercedes is a fairly typical mistake. And its solution is dependent upon several things. In case you want to find out what to do about it then stay with me.
Let us discuss the key variables to consider when deciding on whether or not to get your car drained:

  1. What level of Diesel have you put in the Mercedes, taking into consideration that the fuel capacity of the Mercedes CL65 AMG is probably around 88 litres?
    1. A small quantity of Diesel, less than 4.4 litres of Diesel in a Petrol CL65 AMG will in most cases not necessarily be a massive problem. Experience has taught us that an amount under 4.4 litres (which is roughly 5% of the overall fuel tank) is usually capable of being completely diluted through wholly topping the rest of the tank with Petrol.
      It is quite rare to encounter a car or truck going through difficulties due to under 5% incorrect fuel contamination. Keep in mind that it is infrequently found - not impossible to encounter. You will discover some motor vehicles that don't stand any quantity of fuel contamination at all.
    2. In between 4.4 and 8.8 litres of Diesel in the Mercedes (from 5 to 10%) is a 50/50 condition. Our expertise has shown that as many people get away with this as those who don't. When deciding upon whether or not to chance it and just simply fill it up bear in mind that it is much like betting your car on black - you've got a 50/50 chance of it working.
    3. Anything above 8.8 litres of Diesel in your Petrol CL65 AMG really should immediately be drained since your likelihood of getting away with this level of contamination is probably lower than one in 50 - seriously long odds.
  2. Put Diesel in a Petrol Mercedes and drove it: Have you spotted any performance troubles as a result of putting the incorrect fuel in the CL65 AMG? In that case, have it removed no matter the amount of Diesel or the contamination percentage. Still running a car that is currently beginning to suffer from the effects of wrong fuel contamination will likely end up in progressively more harm being caused to the fuel system parts.
  3. Do you need assurance?
    You should get it drained. Regardless of the contamination ratio, there is always some degree of risk affiliated with operating a Petrol engine on fuel contaminated with the wrong fuel. Possible implications of driving on the incorrect fuel include things like the engine refusing to start, running lumpy, loss in power, degradation of the high-pressure pump, worn out or clogged injectors, etc. These are some of the most frequently seen Diesel in Petrol symptoms, and if you recognise any of them cease driving and have it removed immediately.

Don't just have any untrained so-and-so to attend your vehicle. We are Mercedes specialists and possess the certification and knowledge necessary to make certain that you get back on the road with little hassle or worry.

Put Diesel in a Petrol Mercedes

Inadvertently put Diesel in a Petrol Mercedes? Or possibly even put contaminated fuel in your Mercedes CL65 AMG?

Give us a call for Help & Guidance

Contact us and receive sincere recommendations and practical help for your specific circumstance

We arrive and drain it

We are able to go to you to perform the complete contaminated fuel drain & flush there on scene

Once completed You Get Going Once again

As soon as we are done you should be able to get back moving and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain specialists in the UK, boasting nationwide cover, for Mercedes motorists in particular. We mostly deal with:

  • Unleaded petrol in Diesel Auto
  • Diesel in an Unleaded Petrol Auto
  • AdBlue contamination
  • Water fuel contamination

We are Mercedes specialists and have successfully drained hundreds of Petrol Mercedes vehicles. Regardless of whether it's roadside, on a petrol station forecourt, or even at your house, we can get you on the road once again.

The Process

The technique of draining Diesel from a Petrol vehicle is fundamentally the same for virtually all cars. Of course it may vary to some extent as every brand has their own distinct fuel system. However it still generally observes the below 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 Questions

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.

Call us

In the event that you have any queries or need help please Call us!
We can 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

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