Question about Mercedes-Benz SL-Class
Due to the design of the fuel the filter can't be installed backwards, this is true of all MB fuel filters. Ok that said. a fuel filter will never cause white smoke, that has to be from oil or coolant entering the engines combustion chambers, if it is coolant it will have a kind of nauseating sweet smell, if it doesn't have the smell I just described then it is oil, also coolant is 90% steam, oil is truly smoke, so one will dissipate quickly the other hangs around.
Posted on Mar 22, 2011
Check your oil level. Usually heavy white smoke after warm up is oil getting into the exhaust and vaporizing.
But if oil level is full and oil is not leaking or not getting mixed up with antifreeze then in that case other possibility for white smoke from exhaust is cracked fuel injector or blocked fuel injector.
Check all the fuel injector,if any of the injector has fouled plug then that is the cause and fuel injector has to be replaced.
Also check the spark plugs and cylinders.If its wet or not firing well then that is the cause.Inspect the spark plug and cylinders very closely.Bleed the fuel lines and then reconnect the fuel line then measure the fuel pressure.If its low then there is problem with injectors getting clogged or spark plugs are not firing as it should.As you mentioned fuel filter is replaced, so it can be issue with fuel pump.-----------
May be the fuel filter and hose installation is causing the issue.But yes the new filter fittings is bit different on some models.But still retry fitting the filter and hose in reverse and see if its getting fitted in that reverse way,like the original filter was fitted before.But if its not fitting in that way then its not filter issue but, clogged fuel line, work out Sparks plugs, cracked injectors or oil mixing with antifreeze causing this.------------- Check out this possibilities,this should help.Thanks.Helpmech.
Posted on Mar 18, 2011
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Posted on Jan 02, 2017
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