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Codes p0300, p0305 and p0306,. Before the codes it ran fine
Codes p0300, p0305 and p0306,. Before the codes it ran fine then instantly out of nowhere it starts missing, had to limp it home and it stalked out a couple of times, what could cause this??? I drove … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
Lou I changed my engine a couple of weeks ago and am dealing
Hi Lou I changed my engine a couple of weeks ago and am dealing with some gremlins. I keep getting p0172,175 and an m13 code. I think my secondary air pump is going bad because it whines really bad bu… read more
Lou P. master tech
Lou P. master tech
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Bachelor's Degree
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I have just purchased a 2002 Mercedes ML320, with 171k miles
I have just purchased a 2002 Mercedes ML320, with 171k miles on it. The person I bought it from said her mechanic had told her it needed the catalytic converters on the driver side replaced. Other tha… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
Have P0300, P0302, P0305 codes on 2007 C230. Car running
have P0300, P0302, P0305 codes on 2007 C230. Car running rough/CEL on so had diagnosis at local MB dealer. MB dealer said code P0301 current, and stored 301, 305, 303 Car had misfire codes so I change… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
2000 CLK430 that has set for several years. We are getting
Customer: 2000 CLK430 that has set for several years. We are getting codes P0300, P0305, P0306, P0307. Sometimes all the codes at the same time, and sometimes only one or two, always just these three … read more
Chad Farhat
Chad Farhat
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Associate Degree
5,736 satisfied customers
My check engine light is on. I've received codes P0300,
My check engine light is on. I've received codes P0300, P0301, P0302, P2180, P2178, and P0303. … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
ML320: How do I repair codes P0300, P304, P0305 and P0306 of
How do I repair codes P0300, P304, P0305 and P0306 of ML 320 with V6 3.2L. Spark plugs and spark plug wires are already replaced. I also switch ignition coil from cylinder 1 to cylinder 4, cleared cod… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
2006 e350 keep getting codes p0300,p0306,p0305,p0304 moved
2006 e350 keep getting codes p0300,p0306,p0305,p0304 moved coil packs around no change what could it be?… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
ml500: hi I just rebuild engine on 03 ml 500, new rings gaskets
hi I just rebuild engine on 03 ml 500, new rings gaskets etc (engine lost valve seats on couple cylinders got new block with pistons, donor heads from s500) my issue bank 2 has misfire on all cylinder… read more
Hipo64
Hipo64
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High School or GED
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C230 Kompressor Coupe 203.740: 2003 C230 Kompressor Coupe 203.740,
2003 C230 Kompressor Coupe 203.740, engine: 271.948, 6 spd manual 716.6 long-term fuel trim stays around 7.8, recently had catalytic converter replaced due DTC P0420 - catalyst efficiency below thresh… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
c280 sport: Hello, I just bought a beat up 99 280 sport (CEL
Hello, I just bought a beat up 99 280 sport (CEL light on) with a rough idle in drive while at a stop (in D). It drives smooth, cannot detect issue while moving and in (R) at park it is smooth as glas… read more
Auto Psychic
Auto Psychic
owner
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2000 Mercedes E320: Fuel Trim..Air Flow..Random Misfire..fuel injector
Hi i am working on a 2000 Mercedes E320 & i was woundering if you have time to tell me on this codes if i'm right or wrong & if you can point me in the right direction. Codes are P0170 & P0173 Fuel Tr… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
I have a 2006 mercedes c230 sport with about 72000 miles. I
I have a 2006 mercedes c230 sport with about 72000 miles. I am getting the following codes: P0300 Multiple/Random Misfire Detected, P0306 Cylinder 6 Misfire Detected, Stored Codes P0306Cylinder 6 Misf… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
98 C230: few minutes..duo valve..reproduce..plenty of freon
Hi, air conditionning quit after running for a few minutes on my 98 C230 202 type, cleaned the duo valve, and then as per Eurotec suggestion here on this forum , changed the ice detection sensor, stil… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
slk320: replaced mass air flow sensor..runs fine..rev..swapped coils
I have a 01 slk320. Had codes p0306 and p0300, replaced mass air flow sensor, no help.Car runs fine at idle, but when almost hits rev limiter starts skipping and cutting back.Fuel pressure holds,chang… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
2001 Mercedes C240: home and hooked a scan tool to the car..Lean..Rich
I have a 2001 Mercedes C240. The other day it started to run rough. I got home and hooked a scan tool to the car and got the following codes: P0300 Random Misfire, P0302 Cylinder2 Misfire, P0303 Cylin… read more
nelson garcia
nelson garcia
auto mechanic
Vocational, Technical or Trade Scho
270 satisfied customers
1999 E320 4matic: multi-cylinder misfire..p0304, p0305..p0306
The vehicle is a 1999 E320 4Matic 210.282. The issue is a multi-cylinder misfire. Codes are P0300, P0304, P0305, and P0306 - all on the same side. MAF Reading is 0.74 #/Me at idle and 2.84 #/Me at 2,0… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
2001 mercedes: 000 miles..he bought a check engine light came on
I am trying to help my friend with his 2001 mercedese SLK 320 (has 82,000 miles). The dealer he bought the car from hasn't been helpful at all. From the first day he bought a check engine light came o… read more
vwnewton
vwnewton
ASE master with L1, Euro Tech
A.S.E. L1 Master and more
580 satisfied customers
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MB Paul

MB Paul

Mercedes Technician

3,567 satisfied customers

Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes

Marty

Marty

Mercedes Technician

29,460 satisfied customers

Bosch Certified Master Tech. Over 35 years experience.

Lou P. master tech

Lou P. master tech

Mercedes Technician

4,460 satisfied customers

20 years Master Certified excellent fix rate and have access to factory wiring, and instructions.

Michael Warfield

Michael Warfield

Factory Mercedes-Benz Technician

3,132 satisfied customers

Mercedes-Benz Master Certified technician

Matt

Matt

Engineer

643 satisfied customers

Mechanical Engineer with 23 years experience in the auto industry, 8 yrs in formula 1 engine testing

promerc

promerc

mercedes diagnostic technician

553 satisfied customers

Qualified mercedes diagnostic technician & service team manager , ATA registered Master tech

Hipo64

Hipo64

Mercedes Technician

444 satisfied customers

Work and diagnose electronics on daily basis.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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