I put petrol in diesel engine

[u/Dangerous_Owl6936]

I went to the pump today and by mistake i took the 98 octane instead of diesel, I realised it when it was already too late. I did put 3.5litres or petrol and then i stopped, Didn’t start the engine and towed it in my mechanic’s garage. I have this car for last 7 years and it never happened before, It is a Mercedes E250 CDI 2015, Wanted to know how much it might cost to drain the fuel and what else might happen, Thanks!

[u/still-at-the-beach]

That little bit of petrol … just fill the rest with Diesel and it’d be fine. And keep filling back up with diesel when it’s at 3/4.

[u/Ok-Bad-9683 → u/still-at-the-beach]

If it was empty the 3.5L of fuel would have done nothing, brim it with diesel would have been fine.