Check engine light on
Thread Starter
Newbie
Joined: Dec 2007
Posts: 14
Likes: 0
ML-320
Check engine light on
I have a 200 ML 320 with about 120K miles. After a 1000 mile road trip my check engine light came on and stays illuminated. The car feels like it is miss firing. At times it will run so rough that I cannot accelarate. When this happens I shut the engine down and restart it and it runs much better it will still miss fire slightly but I can accelarate normally.
I have three questions:
1. Any ideas as to what the problem may be?
2. Can I hook up a standard OBD 2 to the on-board computer to get a read out of the check engine codes?
3. Where can I find a list of all trouble codes and their meanings
Thanks,
Dan
I have three questions:
1. Any ideas as to what the problem may be?
2. Can I hook up a standard OBD 2 to the on-board computer to get a read out of the check engine codes?
3. Where can I find a list of all trouble codes and their meanings
Thanks,
Dan
Last edited by Djsimeon; Jul 25, 2009 at 06:51 PM. Reason: Updated Information
Thread Starter
Newbie
Joined: Dec 2007
Posts: 14
Likes: 0
ML-320
Went and bought an OBD 2 scanner and the following Trouble codes Popped up:
P0300 -----> Random Multiple Cylinder Misfire
P0301 -----> Cylinder 1 Misfire
P0302 -----> Cylinder 2 Misfire
P0303 -----> Cylinder 3 Misfire
P0306 -----> Clylinder 6 Misfire
Also someother codes Under the "Mill" on indicator popped up saying there were 9 possible emission problems:
Misfire
Fuel
Comp
Catylast
Evap
Sec Air
O2 sensor
O2 HTR
EGR
Does this make sense to anyone?
P0300 -----> Random Multiple Cylinder Misfire
P0301 -----> Cylinder 1 Misfire
P0302 -----> Cylinder 2 Misfire
P0303 -----> Cylinder 3 Misfire
P0306 -----> Clylinder 6 Misfire
Also someother codes Under the "Mill" on indicator popped up saying there were 9 possible emission problems:
Misfire
Fuel
Comp
Catylast
Evap
Sec Air
O2 sensor
O2 HTR
EGR
Does this make sense to anyone?
Newbie
Joined: Mar 2007
Posts: 5
Likes: 0
From: Seattle, WA
ML320 Sport Package
I have a similar problem on my '01 ML320, although at only 55K miles - check engine light came on, the engine stalls when accelerate, although only when cold, other than that it runs ok. Then last week I took the car to the dealership for the scheduled service A maintenance, and ask them to diagnose a problem, and they said it's the 'air mass sensor' (part # MB112-094-00-48). They estimated the total cost of parts and labor at about $800.
Ned
Ned
Thread Starter
Newbie
Joined: Dec 2007
Posts: 14
Likes: 0
ML-320
Thanks for the infor Ned. I'm hoping that is all it is. I took the Mass Air flow unit out yesterday and cleaned it with some electronic contact cleaner and reinstalled it. At that point I used my newly purchased OBD scanner from Auto Zone ($49.00) and cleared the codes. I fired up the motor and took it for a test run and so far the car seems to be running fine and no check engine light so far. I'm hoping that I solved the problem. In regards to your car Ned to change the Mas Air flow sensor with take you about ten minutes and probably save you a ton of money on Labor. It's very simple.
Senior Member
Joined: Jul 2004
Posts: 260
Likes: 2
From: New England
1990 190E 2.6, ... 1998 ML320, 2005 ML500SE
I have a similar problem on my '01 ML320, although at only 55K miles - check engine light came on, the engine stalls when accelerate, although only when cold, other than that it runs ok. Then last week I took the car to the dealership for the scheduled service A maintenance, and ask them to diagnose a problem, and they said it's the 'air mass sensor' (part # MB112-094-00-48). They estimated the total cost of parts and labor at about $800.
Ned
Ned
Cleaning the MAF is a temporary fix at best. Cleaning, if successful, will only last for a few weeks or days.
Mike
Last edited by Mike's ML; Jul 26, 2009 at 08:31 PM.
Newbie
Joined: May 2006
Posts: 11
Likes: 0
ML320
I have a 200 ML 320 with about 120K miles. After a 1000 mile road trip my check engine light came on and stays illuminated. The car feels like it is miss firing. At times it will run so rough that I cannot accelarate. When this happens I shut the engine down and restart it and it runs much better it will still miss fire slightly but I can accelarate normally.
I have three questions:
1. Any ideas as to what the problem may be?
2. Can I hook up a standard OBD 2 to the on-board computer to get a read out of the check engine codes?
3. Where can I find a list of all trouble codes and their meanings
Thanks,
Dan
I have three questions:
1. Any ideas as to what the problem may be?
2. Can I hook up a standard OBD 2 to the on-board computer to get a read out of the check engine codes?
3. Where can I find a list of all trouble codes and their meanings
Thanks,
Dan
Newbie
Joined: Aug 2009
Posts: 1
Likes: 0
ml 320 2002
misfiring codes
I also have a 2002 ml320 with 127k miles. Engine lights on sometimes. stalls sometimes on idle. codes are p2043, p2046, p2050,p2056,p2055,p2054, these all are mifire codes for different cylinders. most of the time it runs fine. any ideas?
Trending Topics
MB World Stories
The Best of Mercedes & AMG
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Mercedes Teases Updated EQS With Steer-By-Wire and a Yoke
Verdad Gallardo
8 Mercedes Models With Poor Reliability Records
Verdad Gallardo
Newbie
Joined: Jun 2014
Posts: 9
Likes: 0
2002 ml320
code P0446 Evaporative system vent control circuit
code P0455 Evaporative Emission system leak Detected (gross leak/no flow
code P0446 Evaporative Emission system Vent control Circuit
code P0455 Evaporative Emission system leak Detected (gross leak/no flow
code P0446 Evaporative Emission system Vent control Circuit
Last edited by mnisia; Jul 10, 2017 at 06:06 PM.
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Remove the gas cap and flip the gasket and re-tighten the cap until you hear the clicks.
If this does not correct the condition you will have to have a smoke test done on the Evaporative System to find the location of the leak.
If this does not correct the condition you will have to have a smoke test done on the Evaporative System to find the location of the leak.
Newbie
Joined: Jul 2018
Posts: 2
Likes: 0
Toyota 2006
I have a 200 ML 320 with about 120K miles. After a 1000 mile road trip my check engine light came on and stays illuminated. The car feels like it is miss firing. At times it will run so rough that I cannot accelarate. When this happens I shut the engine down and restart it and it runs much better it will still miss fire slightly but I can accelarate normally.
I have three questions:
1. Any ideas as to what the problem may be?
2. Can I hook up a standard OBD 2 to the on-board computer to get a read out of the check engine codes?
3. Where can I find a list of all trouble codes and their meanings
Thanks,
Dan
I have three questions:
1. Any ideas as to what the problem may be?
2. Can I hook up a standard OBD 2 to the on-board computer to get a read out of the check engine codes?
3. Where can I find a list of all trouble codes and their meanings
Thanks,
Dan
Read & Clear DTCs
Read Live Data
Identify VIN information
Views freeze frame data
Turns off Malfunction indicator Light(MIL)
Display monitor test(mode 6)
Read pending fault code
DTC code look up
The point to check emission-relate test,I recommend nice DIY auto diagnsotic tool ,just $26!
Junior Member
Joined: Feb 2010
Posts: 25
Likes: 0
From: Los Angeles
2014 E350 Sport,1999 ML430,X cars 2008 Z06,2006 E55,2002 Z06,95 M3
On my 1999 ML430 with 200K miles I had P0446 code it was the purge valve not holding vacuum.
After replacing the purge valve and once the PCM was able to actually test the EVAP system..... code P0455 Large EVAP Leak came on..With a smoke machine I found the leak at the Fuel Filter vent hose.
What helped me a lot was watching videos on how EVAP works and what each component does.
After replacing the purge valve and once the PCM was able to actually test the EVAP system..... code P0455 Large EVAP Leak came on..With a smoke machine I found the leak at the Fuel Filter vent hose.
What helped me a lot was watching videos on how EVAP works and what each component does.
