got a misfire problem
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Junior Member
Joined: Mar 2009
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From: denver colorado
00 clk 430
got a misfire problem
i have a misfire prob can figure it out the car has fault code p0305,p0300,p0307 wich is misfire on cylinder 5 a misfire and misfire cyl 7 the injectors are good new plugs swaped coil packs its fine when the car is cold once it warms up its starts misfiring and it shuts of cyl 5,7 injectors and when you drive it for a bit cyl 6 starts misfiring to if anyone can help get back to me thanks
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From: Saint Augustine, FL
1999 CLK320 (sold), 2007 C230 SS (gone), 2000 Grand Marquis, 2011 CR-Z, stay tuned...
MAF sensor? Does the car buck at all, or will it only hit, say, 3500 rpms? Sound right, or am I way off? Btw, check hoses if I'm not as well.
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From: Saint Augustine, FL
1999 CLK320 (sold), 2007 C230 SS (gone), 2000 Grand Marquis, 2011 CR-Z, stay tuned...
I had the same problem. The dealership changed my plugs and wires, no fix. Changed my hoses, no fix. On my fourth visit in one month, they decided it was the maf sensor and one other sensor. It cost me $1500, but the sensors fixed the problem.
MBWorld Fanatic!
Joined: Mar 2009
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From: Saint Augustine, FL
1999 CLK320 (sold), 2007 C230 SS (gone), 2000 Grand Marquis, 2011 CR-Z, stay tuned...
I don't know off the top of my head, seems to me they just said O2 sensor. I'll try to find the service record for that and I'll let you know.
Super Member
Joined: Apr 2007
Posts: 737
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From: Fort Worth, TX
2019 CLS450/ 2002 CLK55
i have a misfire prob can figure it out the car has fault code p0305,p0300,p0307 wich is misfire on cylinder 5 a misfire and misfire cyl 7 the injectors are good new plugs swaped coil packs its fine when the car is cold once it warms up its starts misfiring and it shuts of cyl 5,7 injectors and when you drive it for a bit cyl 6 starts misfiring to if anyone can help get back to me thanks
I had exact problem. Change your MAF sensor.
www.Autohausaz.com
Easy DIY...
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MBWorld Fanatic!
Joined: Mar 2009
Posts: 1,545
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From: Saint Augustine, FL
1999 CLK320 (sold), 2007 C230 SS (gone), 2000 Grand Marquis, 2011 CR-Z, stay tuned...
I just found my service records. I'm sorry the MAF sensor didn't work. I just want to quote what they said. There were three:
"TEST WITH SDS CODES P0302, P0304, P0305, P0306 R&R FUEL RAIL CLEAN RAIL & INJECTORS. AFTER ROAD TEST CHECK ENGINE LIGHT ON FOR LEFT REAR O2 SENSOR. REPLACE O2 SENSOR & AIR MASS METER"
I hope you have some good luck soon. My 2007 C230 just started throwing codes with only 10,5XX miles, and I now have to sort those out. P0170 and P0173. I hear they're a pain in the *** to deal with.
"TEST WITH SDS CODES P0302, P0304, P0305, P0306 R&R FUEL RAIL CLEAN RAIL & INJECTORS. AFTER ROAD TEST CHECK ENGINE LIGHT ON FOR LEFT REAR O2 SENSOR. REPLACE O2 SENSOR & AIR MASS METER"
I hope you have some good luck soon. My 2007 C230 just started throwing codes with only 10,5XX miles, and I now have to sort those out. P0170 and P0173. I hear they're a pain in the *** to deal with.
Super Member
Joined: Apr 2006
Posts: 555
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From: Somewhere in Maryland
2000 CLK 430 Cabriolet
I just found my service records. I'm sorry the MAF sensor didn't work. I just want to quote what they said. There were three:
"TEST WITH SDS CODES P0302, P0304, P0305, P0306 R&R FUEL RAIL CLEAN RAIL & INJECTORS. AFTER ROAD TEST CHECK ENGINE LIGHT ON FOR LEFT REAR O2 SENSOR. REPLACE O2 SENSOR & AIR MASS METER"
I hope you have some good luck soon. My 2007 C230 just started throwing codes with only 10,5XX miles, and I now have to sort those out. P0170 and P0173. I hear they're a pain in the *** to deal with.
"TEST WITH SDS CODES P0302, P0304, P0305, P0306 R&R FUEL RAIL CLEAN RAIL & INJECTORS. AFTER ROAD TEST CHECK ENGINE LIGHT ON FOR LEFT REAR O2 SENSOR. REPLACE O2 SENSOR & AIR MASS METER"
I hope you have some good luck soon. My 2007 C230 just started throwing codes with only 10,5XX miles, and I now have to sort those out. P0170 and P0173. I hear they're a pain in the *** to deal with.
I coulda swore the P0170 and 173 were the bad MAF codes but i could be wrong!
MBWorld Fanatic!
Joined: Mar 2009
Posts: 1,545
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From: Saint Augustine, FL
1999 CLK320 (sold), 2007 C230 SS (gone), 2000 Grand Marquis, 2011 CR-Z, stay tuned...
They're like lean mix codes. There's supposedly a throttle issue that throws the same code, but idk. I cleared the codes and they haven't come back up, so who knows. I'll take it in to my indy place if it gets bad.
