The less you know the better.
Thread Starter
Member
Joined: Nov 2013
Posts: 101
Likes: 2
S 320
The less you know the better.
Sorry for the title, but having purchased a MaxiScan MS309 I thought I would plug in and see what it throws up.
First of all I have no faults or check lights coming on the cars display.
The engine is running smooth and strong.
So I was just seeing what the unit is like in use.
Anyway to my surprise it detected 2 fault codes ie
Generic fuel trim bank 1 and fuel trim bank 2.
I had the option to clear these from the memory and thats what I have done.
I appreciate that you shouldnt just get rid of what can be valuable info but seeing as I have an engine that runs good, and nothing showing on the dash display I decided it was no big deal.
Can anyone tell me why and what this would mean.
Just curious as I dont think theres any realtime problem.
Many Thanks.
First of all I have no faults or check lights coming on the cars display.
The engine is running smooth and strong.
So I was just seeing what the unit is like in use.
Anyway to my surprise it detected 2 fault codes ie
Generic fuel trim bank 1 and fuel trim bank 2.
I had the option to clear these from the memory and thats what I have done.
I appreciate that you shouldnt just get rid of what can be valuable info but seeing as I have an engine that runs good, and nothing showing on the dash display I decided it was no big deal.
Can anyone tell me why and what this would mean.
Just curious as I dont think theres any realtime problem.
Many Thanks.
MBWorld Fanatic!
Joined: Dec 2012
Posts: 2,475
Likes: 439
From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
If the codes are history, no problem. If they are current, further investigation might be needed.
The car collects dozens of faults, which show up every time that you hook up the STAR system. Most are trivial historic faults (f) as opposed to current (F). I doubt if your reader shows a tenth of what would show up with STAR.
The car collects dozens of faults, which show up every time that you hook up the STAR system. Most are trivial historic faults (f) as opposed to current (F). I doubt if your reader shows a tenth of what would show up with STAR.
Thread Starter
Member
Joined: Nov 2013
Posts: 101
Likes: 2
S 320
Many Thanks Wally,
My humble diagnostic check unit is indeed no star diagnostic system.
Basic info plus real time only.
I think they are historical codes as the car has recently passed its mot.
If the codes were current I believe it would have failed the emissions test.
After running for a few weeks I will check again and see whats stored.
Hopefully no codes.
Thanks again.
My humble diagnostic check unit is indeed no star diagnostic system.
Basic info plus real time only.
I think they are historical codes as the car has recently passed its mot.
If the codes were current I believe it would have failed the emissions test.
After running for a few weeks I will check again and see whats stored.
Hopefully no codes.
Thanks again.
MBWorld Fanatic!
Joined: Dec 2012
Posts: 2,475
Likes: 439
From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
I replaced a front strut yesterday. The car stored trouble codes telling me that I had disconnected the shock solenoids, that the strut height was not plausible, etc., etc.
I spent almost as long with the STAR system as I did changing the strut.
I spent almost as long with the STAR system as I did changing the strut.
