Gl 320 "misfire"
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Joined: Sep 2007
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2007 gl 320 CDI
Gl 320 "misfire"
I have a 2007 GL 320 that had trouble starting the other day. It started, then by itself (still parked) turned off after about 5 minutes. Then, it would not start. I left it for about 15 minutes and then it started, but ran rough. The check engine light came on, but it seemed to run fine.
The dealer said it had a misfire code (misfired 2 times) but they found no problem. What is a misfire?
Any thought on this? It was a cold morning, but that did not seem to be the issue, then next morning was colder but no trouble starting up.
The dealer said it had a misfire code (misfired 2 times) but they found no problem. What is a misfire?
Any thought on this? It was a cold morning, but that did not seem to be the issue, then next morning was colder but no trouble starting up.
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From: Scottsdale, AZ
2004 RX330, 2008 Scion xB, 2001 Honda Insight Hybrid, 2010 Toyot Prius v ATP
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gl320 wont start
my wife's gl 320 has failed to start on two separate occasions. she engaged the starter button, the engine cranked but did not start (almost as if there were no fuel-however tank was half filled) mercedes roadside assistance responded and the car started immediately (to my wife's annoyance)
this occured again several weeks later, and the car spontaneously started after several hours (this time it was in my driveway)
took the benz in and left the car until MB could determine the malfunction. the computer detected no fault, but ultimately MB replaced the fuel pump.
several days after picking up the car, it once again failed to start. this time the battery was dead. this failure was most likely the result of the mb technicians taking my electrical system apart during the previous service call.
needless to say i am now driving the gl. so far i have not had any problems (going on two months)
my wife is driving my land cruiser and is quite happy.
the irony of course is that my wife has given up a car she could not start for a car she may not be able to stop.
this occured again several weeks later, and the car spontaneously started after several hours (this time it was in my driveway)
took the benz in and left the car until MB could determine the malfunction. the computer detected no fault, but ultimately MB replaced the fuel pump.
several days after picking up the car, it once again failed to start. this time the battery was dead. this failure was most likely the result of the mb technicians taking my electrical system apart during the previous service call.
needless to say i am now driving the gl. so far i have not had any problems (going on two months)
my wife is driving my land cruiser and is quite happy.
the irony of course is that my wife has given up a car she could not start for a car she may not be able to stop.
Super Member
Joined: Feb 2009
Posts: 711
Likes: 11
From: NW corner of CONUS
2008 GL 320 CDI, 2004 VW V10 Touareg TDI
I have a 2007 GL 320 that had trouble starting the other day. It started, then by itself (still parked) turned off after about 5 minutes. Then, it would not start. I left it for about 15 minutes and then it started, but ran rough. The check engine light came on, but it seemed to run fine.
The dealer said it had a misfire code (misfired 2 times) but they found no problem. What is a misfire?
Any thought on this? It was a cold morning, but that did not seem to be the issue, then next morning was colder but no trouble starting up.
The dealer said it had a misfire code (misfired 2 times) but they found no problem. What is a misfire?
Any thought on this? It was a cold morning, but that did not seem to be the issue, then next morning was colder but no trouble starting up.
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Newbie
Joined: Sep 2007
Posts: 14
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2007 gl 320 CDI
It was about 0-5 degrees, so perhaps that was it. However, I had added the fuel additive to keep it from gelling and it was a full tank. Seems to be fine now. I am starting to think that the name brands of diesel fuel (mobile…) are better than some of the off brands that are cheaper (Pride in the north east). Where I live in Fairfield County CT the difference in price can be $.25 or more a gallon. Thanks.
Super Member
Joined: Feb 2009
Posts: 711
Likes: 11
From: NW corner of CONUS
2008 GL 320 CDI, 2004 VW V10 Touareg TDI
It was about 0-5 degrees, so perhaps that was it. However, I had added the fuel additive to keep it from gelling and it was a full tank. Seems to be fine now. I am starting to think that the name brands of diesel fuel (mobile…) are better than some of the off brands that are cheaper (Pride in the north east). Where I live in Fairfield County CT the difference in price can be $.25 or more a gallon. Thanks.
The fuel anti gel additives you can buy are of limited effectiveness in lowering the gel point. RARELY do they publish, on the bottle, anything other than the most general statements such as "reduces fuel gelling" etc. This usually means fairly large amounts are needed to have any more than minimal effects. They are a step in the right direction, but only a tiny step.
