what is the diff between malfunctions and CELS? how do you read malfuntions?
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Joined: Jan 2011
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'02 C32 ///AMG, 2000 BiTurbo Audi S4(RIP)
So I had autozone read codes and it was clean. He also could check the same sensors the emission test did, and they were all ready except for the evap system (yesterday only gas cap passed as intact), so I just need to drive it some more. Also today it said 0 malfunctions.
But...
I was hoping omeone could explain malfunctions to me better. How do you read them? Or get the code for em? What's the difference between malfunctions and CELS?
TIA
Ps. doea anyone know anything about mecedes emission readiness parameters? Are they based on miles, ignition cycling, tempurature cycling or perhaps others?
But...
I was hoping omeone could explain malfunctions to me better. How do you read them? Or get the code for em? What's the difference between malfunctions and CELS?
TIA
Ps. doea anyone know anything about mecedes emission readiness parameters? Are they based on miles, ignition cycling, tempurature cycling or perhaps others?
Last edited by ByeTurboS4; Apr 25, 2011 at 05:58 PM.
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From: SoCal
2018 GLE350
In order to read malfunctions I believe you need the STAR system. Codes can be pulled with an OBD scanner but the malfunction codes are a bit more unique.
I know every so often I'll get an ESP malfunction, but it then goes away. I swear sometimes I think these cars have a mind of their own.
I know every so often I'll get an ESP malfunction, but it then goes away. I swear sometimes I think these cars have a mind of their own.
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From: North NJ
2002 C32 AMG, 2013 GLK 350/4, 2015 E63S AMG Wagon
In order to read malfunctions I believe you need the STAR system. Codes can be pulled with an OBD scanner but the malfunction codes are a bit more unique.
I know every so often I'll get an ESP malfunction, but it then goes away. I swear sometimes I think these cars have a mind of their own.
I know every so often I'll get an ESP malfunction, but it then goes away. I swear sometimes I think these cars have a mind of their own.
There are "current codes" and "stored codes". Stored code is like your ESP mulfunction that then goes away. But the code is still stored in memory for the mechanic to read later. And current codes are the ones that are still in effect. STAR system reads all of them. Most of the OBD scanners only read current codes. Things like ESP and BAS which have thier own indicator light dont result in a CEL (Check Engine Light).
And your car does have a mind of its own. It's called the ECU. Sometimes I wish that some of the newer members here (not you guys) had an ECU. Then maybe Jerry can be re-tune them.
Last edited by Lenin; Apr 25, 2011 at 07:46 PM.
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'02 C32 ///AMG, 2000 BiTurbo Audi S4(RIP)
Thankyou guys, I'm just trying to understand as much as possible. So would you say that most people never know what malfuncions they have unless they go to the dealer? Or have someone with STAR? Is there anyway for Joe Everymechanic to check em? I think my car is good for now but it would be handy in the future.
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From: DE
2005 E55
Thankyou guys, I'm just trying to understand as much as possible. So would you say that most people never know what malfuncions they have unless they go to the dealer? Or have someone with STAR? Is there anyway for Joe Everymechanic to check em? I think my car is good for now but it would be handy in the future.
It really depends which ones you're getting. The car considers everything a malfunction. When your fuel or wiper fluid is low or you have a light bulb out it shows up as a malfunction. I constantly have the "teleaid SOS" malfunction. No big deal in that case.
When the car is on you can cycle through any current malfunctions that may be present with your steering wheel buttons. cycle through until you see malfunctions then use the up/down button to cycle through the specific malfunctions.
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From: East Bay, Bay Area
2002 C32, 2012 S550
I have the Rev Application on my iPhone and it has a screen that tells all the readiness monitors:
http://www.devtoaster.com/products/rev/
http://www.devtoaster.com/products/rev/
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Senior Member
Joined: Mar 2010
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From: SF Bay Area
2006 C55 AMG
It really depends which ones you're getting. The car considers everything a malfunction. When your fuel or wiper fluid is low or you have a light bulb out it shows up as a malfunction. I constantly have the "teleaid SOS" malfunction. No big deal in that case.
When the car is on you can cycle through any current malfunctions that may be present with your steering wheel buttons. cycle through until you see malfunctions then use the up/down button to cycle through the specific malfunctions.
When the car is on you can cycle through any current malfunctions that may be present with your steering wheel buttons. cycle through until you see malfunctions then use the up/down button to cycle through the specific malfunctions.
Super Member
Joined: Apr 2010
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From: Houston, TX
a car.
It really depends which ones you're getting. The car considers everything a malfunction. When your fuel or wiper fluid is low or you have a light bulb out it shows up as a malfunction. I constantly have the "teleaid SOS" malfunction. No big deal in that case.
When the car is on you can cycle through any current malfunctions that may be present with your steering wheel buttons. cycle through until you see malfunctions then use the up/down button to cycle through the specific malfunctions.
When the car is on you can cycle through any current malfunctions that may be present with your steering wheel buttons. cycle through until you see malfunctions then use the up/down button to cycle through the specific malfunctions.
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Joined: Apr 2009
Posts: 852
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From: DE
2005 E55
I've been trying to get my indie to do it for a year. Every time I have it in, I mention it and he never does it. I think he's hesitant because he's never done it before.
