2000 430CLK Cabriolet

What is this problem ?
Greek to me.

Error Code 0455 System Regeneration leak/Tank Pressure sensor

See link:
http://www.panchogun.com/FVWebPhotos/FV-Cars-CLK-Diag-Error-0455.jpg

That code can be generated due to several possible problems.

What that is trying to suggest (say) is.....is the fuel cap in place!

It computer checks the fuel tank to make sure that NO fuel vapors escape & pollute the atmosphere.

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MERCEDES Benz Master Guild Technician (6 TIMES)
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190E 2.3 16V ITS SCCA race car (sold)
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That's not it.
Fuel cap was first thing I checked some days ago.
Error returns after I clear it.
Seems to be something else.

AS I posted there are several possibilities...

If the gas cap checks out, then there are 4 other major components that are involved..not really a DIYer problem.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator