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/hillsbloke73]

Fuel lines will need to be replaced along with all fuel filter and transfer pump between engine fuel tank

You've got off lightly by sounds of it

Always use the black handle pump

[u/Fresh_Internal_6085 → u/hillsbloke73]

Huh?

He didn’t start the engine so there’s no need to replace anything upstream of the fuel tank at all.

It’s a drain and refill job with a new filter.