Is this fixable (gas in diesel)
Thread Starter
Junior Member
Joined: Aug 2024
Posts: 20
Likes: 3
2003 s600, 2005 e320, 1982 240d
Is this fixable (gas in diesel)
Yesterday I bought my first w212 I’ve had almost 40 Mercedes and quite a few e classes and diesels at that but never a 212 yesterday I was on marketplace and stubbled apon a white over brown 2012 e350 bluetec with one major problem. They put gas in the tank and drove it for about 200 feet and in the listing seller cranked it on for a few seconds. I sent a lowball offer of 500$ and shocking they took it. So now I’m the proud owner of a potential nightmare. Is this car savable or would I be better off parting it out? These aren’t cheap in my area closest one is 12k
MBWorld Fanatic!
Joined: Oct 2010
Posts: 5,141
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From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
Yesterday I bought my first w212 I’ve had almost 40 Mercedes and quite a few e classes and diesels at that but never a 212 yesterday I was on marketplace and stubbled apon a white over brown 2012 e350 bluetec with one major problem. They put gas in the tank and drove it for about 200 feet and in the listing seller cranked it on for a few seconds. I sent a lowball offer of 500$ and shocking they took it. So now I’m the proud owner of a potential nightmare. Is this car savable or would I be better off parting it out? These aren’t cheap in my area closest one is 12k
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Joined: Nov 2025
Posts: 477
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From: US
Mercedes SL R231
Anything else wrong with the car? How do you know for sure they put gas in the tank? Seems too good to be true. Why didn't the seller just flush the fuel system and sell it for $5000?
Last edited by GTIBlack; Nov 20, 2025 at 07:58 PM.
MBWorld Fanatic!
Joined: Sep 2018
Posts: 3,243
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From: New Orleans Area
2015 E400 Sedan
Well gas is lighter so should have floated on top in tank...
Fuel pick up is at bottom so should have been drinking diesel and no harm done in 200ft.
unless idled for a week...
Drain tank.
remove fuel line in engine bay and flush out and clean.
Examine injector pump to ensure it is not contaminated if you sense gas have it rebuilt or replaced.
Remove injectors and send them out for rebuild and clean the fuel rail lines...
check anything else fuel runs thru.
change engine oil. and then pray to Diesel gods
Fuel pick up is at bottom so should have been drinking diesel and no harm done in 200ft.
unless idled for a week...
Drain tank.
remove fuel line in engine bay and flush out and clean.
Examine injector pump to ensure it is not contaminated if you sense gas have it rebuilt or replaced.
Remove injectors and send them out for rebuild and clean the fuel rail lines...
check anything else fuel runs thru.
change engine oil. and then pray to Diesel gods
Thread Starter
Junior Member
Joined: Aug 2024
Posts: 20
Likes: 3
2003 s600, 2005 e320, 1982 240d
it does have 217k miles, some front end damage, and was really far out of town I bet they got a quote from mb for 13k (like we do at ford on f250s) and dumped it
Thread Starter
Junior Member
Joined: Aug 2024
Posts: 20
Likes: 3
2003 s600, 2005 e320, 1982 240d
Well gas is lighter so should have floated on top in tank...
Fuel pick up is at bottom so should have been drinking diesel and no harm done in 200ft.
unless idled for a week...
Drain tank.
remove fuel line in engine bay and flush out and clean.
Examine injector pump to ensure it is not contaminated if you sense gas have it rebuilt or replaced.
Remove injectors and send them out for rebuild and clean the fuel rail lines...
check anything else fuel runs thru.
change engine oil. and then pray to Diesel gods
Fuel pick up is at bottom so should have been drinking diesel and no harm done in 200ft.
unless idled for a week...
Drain tank.
remove fuel line in engine bay and flush out and clean.
Examine injector pump to ensure it is not contaminated if you sense gas have it rebuilt or replaced.
Remove injectors and send them out for rebuild and clean the fuel rail lines...
check anything else fuel runs thru.
change engine oil. and then pray to Diesel gods
