2005 c230k- codes p0455, p0456 and p0303


Asked by Dec 10, 2014 at 12:44 AM about the 2005 Mercedes-Benz C-Class 4 Dr C230 Kompressor Supercharged Sedan

Question type: Maintenance & Repair

CEL on - smog test failed with above referenced codes- not sure how major this may be-
CEL remained on for a few days until I filled gas tank believing I may have previously
rec'd tainted gasoline- CEL actually went off until I went on highway and accelerated at
which time CEL came on again- car sputtered so I pulled over and shut off car. Re-started
with no problems except CEL on again

1 Answer


http://engine-codes.com/p0455_mercedes-benz.html The first two, P0455 and P0456 are EVAP, possibly leaks. maybe gas cap. See that site for more details. Now P0303 is a different story, misfire on #3 cylinder. Bad spark plug, coil, injector. For more information for that see http://engine-codes.com/p0303_mercedes-benz.html

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Codes 5 answers

    P0456 P0300 P0302 P0303 and P0344

    2003 Dodge Neon 4 Dr SE Sedan


    Maintenance & Repair

  • Can a bad timing belt cause a P0303 code? 1 answer

    I keep getting a P0303 code and I have replaced everything I can think of. It keeps coming back.

    2008 Chrysler PT Cruiser


    Maintenance & Repair

  • how fix my 2004 turbo legacy gt from a pinging 1 answer

    after cleaning the intake box my legacy wagoon started pinging it read code p0303

    2005 Subaru Legacy 2.5 GT Limited Wagon


    Maintenance & Repair

  • P0303- P0322 engine codes 3 answers

    Was driving in the car all day with the car full well felt the car jerk check engine light came on I turned around to head back home because I was out of town and about 1hour away from home well I...

    2001 Volkswagen Jetta GLS


    Maintenance & Repair

Search Mercedes-Benz C-Class Questions

Mercedes-Benz C-Class Experts

#1 Lorne Grandison
Lorne Grandison
Reputation 4,060
#2 PPC123
Reputation 2,650
#3 zabi
Reputation 1,890
View All

Related Models For Sale

Used Mercedes-Benz E-Class"
754 Great Deals out of 22,736 listings starting at $1,850
Used BMW 3 Series"
1,638 Great Deals out of 39,717 listings starting at $1,500
Used Mercedes-Benz S-Class"
180 Great Deals out of 6,605 listings starting at $2,900
Used BMW 5 Series"
680 Great Deals out of 19,042 listings starting at $1,500
Used Mercedes-Benz CLS-Class"
114 Great Deals out of 2,479 listings starting at $7,699
Used Audi A4"
334 Great Deals out of 13,015 listings starting at $1,800
Used BMW M3"
87 Great Deals out of 1,857 listings starting at $5,495
Used Mercedes-Benz M-Class"
308 Great Deals out of 6,134 listings starting at $2,950
Used Mercedes-Benz CL-Class"
31 Great Deals out of 646 listings starting at $4,900
Used Ford Mustang"
724 Great Deals out of 41,223 listings starting at $900
Used Mercedes-Benz CLK-Class"
81 Great Deals out of 1,527 listings starting at $2,400
Used Honda Accord"
1,282 Great Deals out of 78,152 listings starting at $1,395

Used Cars For Sale

2017 Mercedes-Benz C-Class For Sale
4 Great Deals out of 8,029 listings starting at $38,991
2016 Mercedes-Benz C-Class For Sale
145 Great Deals out of 8,846 listings starting at $25,999
2015 Mercedes-Benz C-Class For Sale
35 Great Deals out of 1,152 listings starting at $21,955
2014 Mercedes-Benz C-Class For Sale
152 Great Deals out of 3,893 listings starting at $14,999
2013 Mercedes-Benz C-Class For Sale
117 Great Deals out of 2,415 listings starting at $13,995