"low batt conv features disabled"
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Joined: Aug 2008
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From: Chicago IL
X166 gls450 2017
"low batt conv features disabled"
I just put both new batteries in (2 weeks ago) - Ran great until today, at a long stop light when I gunned it I got ABS Malfunction, ESP Malfunction and Low Battery convenience features disabled & my steering wheel went really hard ----- This used to happen before replacing the old battery
Also, last night I had to turn the car off and keep left park lamps on for abt 6 ~ 7 mins - Would they've drained the battery out ?? Why does the steering wheel go hard ? After I turned the car off & back on, everything was normal
Also, last night I had to turn the car off and keep left park lamps on for abt 6 ~ 7 mins - Would they've drained the battery out ?? Why does the steering wheel go hard ? After I turned the car off & back on, everything was normal
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I just put both new batteries in (2 weeks ago) - Ran great until today, at a long stop light when I gunned it I got ABS Malfunction, ESP Malfunction and Low Battery convenience features disabled & my steering wheel went really hard ----- This used to happen before replacing the old battery
Also, last night I had to turn the car off and keep left park lamps on for abt 6 ~ 7 mins - Would they've drained the battery out ?? Why does the steering wheel go hard ? After I turned the car off & back on, everything was normal
Also, last night I had to turn the car off and keep left park lamps on for abt 6 ~ 7 mins - Would they've drained the battery out ?? Why does the steering wheel go hard ? After I turned the car off & back on, everything was normal
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Joined: Aug 2008
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From: Chicago IL
X166 gls450 2017
It was temporary - but it should never have come up being brand spankin new batteries - I put it in Dyno Mode menu where voltage is readable, it was 12.4 before starting and remained between 13.4 - 14.2 volts while driving
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What was the voltage of the other battery (don't be lazy, take the multimeter
). I was just wondering if the SBC battery relay would have been bad and did not charge the small battery. I guess it could be temporary too but then you should have had the red battery warning.Was only this one time that you saw the switch off message? Did you only change your batteries, the rear-SAM is original?
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From: Chicago IL
X166 gls450 2017
Yeah the Rear SAM is original - I only changed batteries out
I even got this message today - I had been listening to radio for abt an hour with the car switched off -- The battery was at 12.3 -- when I cranked up it gave me ESP, ABS Malfuntion & the LOW BATTERY CONV FEATURES DISABLED ... I kept it running & it charged up to 14.2 ... Then shut it down and cranked again, no alarms ever since
Why is ABS & ESP associated w/ Low Batt ? This started happening after I bled my brakes without disconnecting SBC pump (2 months ago)
Before bleeding brakes, I did used to get LOW BATT CONV FEATURES DISABLED warning but no other messages -- do you see a link somewhere ?
I even got this message today - I had been listening to radio for abt an hour with the car switched off -- The battery was at 12.3 -- when I cranked up it gave me ESP, ABS Malfuntion & the LOW BATTERY CONV FEATURES DISABLED ... I kept it running & it charged up to 14.2 ... Then shut it down and cranked again, no alarms ever since
Why is ABS & ESP associated w/ Low Batt ? This started happening after I bled my brakes without disconnecting SBC pump (2 months ago)
Before bleeding brakes, I did used to get LOW BATT CONV FEATURES DISABLED warning but no other messages -- do you see a link somewhere ?
Last edited by 007_e350; Feb 20, 2010 at 07:13 PM.
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If your AUX (SBC) battery is good, you should not get ABS/ESP warnings along with low battery. But SBC brakes need a well charged backup battery and if the small battery is low from charge, you would typically get a red warning.
It could be normal to reach 12.3 Volts from using the radio for an hour (you would have a lot of other consumers on in too). But I would like to see the SBC battery voltage at this time, before you start the car.
It could be normal to reach 12.3 Volts from using the radio for an hour (you would have a lot of other consumers on in too). But I would like to see the SBC battery voltage at this time, before you start the car.
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From: Chicago IL
X166 gls450 2017
Just measured all voltages before starting the car this morning:
- Aux Battery (with one terminal disconnected): 12.6 volts
- Main Battery (with Aux Batt terminal disconnected): 12.48 volts
Here's my concern:
Old Aux battery (Fiamm) lying in the garage also had 12.58 volts
Old Main Battery (MB) also lying in the garage also had 12.4 volts
I also noted: while unlocking the doors SBC pump clicked thrice but didn't buzz brakes lines - I remember it ALWAYS used to buzz upon unlocking ... This has been happening since brakes were bled w/o disconnecting this darn pump
Could it be the Aux battery Relay (under the vipers) being bad ?
Update:
Aux Batt stays at 12.66 even with the car running, is Alternator not charging this one ?
- Aux Battery (with one terminal disconnected): 12.6 volts
- Main Battery (with Aux Batt terminal disconnected): 12.48 volts
Here's my concern:
Old Aux battery (Fiamm) lying in the garage also had 12.58 volts
Old Main Battery (MB) also lying in the garage also had 12.4 volts
I also noted: while unlocking the doors SBC pump clicked thrice but didn't buzz brakes lines - I remember it ALWAYS used to buzz upon unlocking ... This has been happening since brakes were bled w/o disconnecting this darn pump
Could it be the Aux battery Relay (under the vipers) being bad ?
Update:
Aux Batt stays at 12.66 even with the car running, is Alternator not charging this one ?
Last edited by 007_e350; Feb 21, 2010 at 10:34 PM.
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From: Europe
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Just measured all voltages before starting the car this morning:
- Aux Battery (with one terminal disconnected): 12.6 volts
- Main Battery (with Aux Batt terminal disconnected): 12.48 volts
Here's my concern:
Old Aux battery (Fiamm) lying in the garage also had 12.58 volts
Old Main Battery (MB) also lying in the garage also had 12.4 volts
I also noted: while unlocking the doors SBC pump clicked thrice but didn't buzz brakes lines - I remember it ALWAYS used to buzz upon unlocking ... This has been happening since brakes were bled w/o disconnecting this darn pump
Could it be the Aux battery Relay (under the vipers) being bad ?
Update:
Aux Batt stays at 12.66 even with the car running, is Alternator not charging this one ?
- Aux Battery (with one terminal disconnected): 12.6 volts
- Main Battery (with Aux Batt terminal disconnected): 12.48 volts
Here's my concern:
Old Aux battery (Fiamm) lying in the garage also had 12.58 volts
Old Main Battery (MB) also lying in the garage also had 12.4 volts
I also noted: while unlocking the doors SBC pump clicked thrice but didn't buzz brakes lines - I remember it ALWAYS used to buzz upon unlocking ... This has been happening since brakes were bled w/o disconnecting this darn pump
Could it be the Aux battery Relay (under the vipers) being bad ?
Update:
Aux Batt stays at 12.66 even with the car running, is Alternator not charging this one ?
But do your brakes work properly otherwise? The fact that the pump runs more than once sounds alarming.
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MBWorld Fanatic!
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From: Europe
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No, I mean the charging issue. This voltage is too low when the engine is running. The AUX battery is always in need to get charged and is charged if the main battery voltage is higher and allows the AUX battery to get charged.
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From: Chicago IL
X166 gls450 2017
This relay will be energized by BCM to enable charging of Aux battery - BCM checked out fine .. What should I do to get aux battery charged ?
Last edited by 007_e350; Feb 23, 2010 at 10:10 AM.
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I actually mean your battery voltage is obviously too low when the engine is running and this needs to be fixed, what ever part is causing this.
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CLS55 AMG
Left the lights on my CLS55 on last week (valet turned them to ON, didn't notice it). Was able to jump the car and after 15 minutes of driving the message came up that said Convenience functions have been restored. But after a week of normal starting and driving the features haven't been restored. ipod and steering wheel controls still don't work.
Any ideas? Even though the low voltage warning isn't coming up anymore could the battery not be strong enough now? I thought there was a second battery under the hood for some functions.
Any ideas? Even though the low voltage warning isn't coming up anymore could the battery not be strong enough now? I thought there was a second battery under the hood for some functions.
MBWorld Fanatic!
Joined: Dec 2006
Posts: 6,499
Likes: 336
From: Europe
223.168 & 213.012 & 906.633 & 214.005
Left the lights on my CLS55 on last week (valet turned them to ON, didn't notice it). Was able to jump the car and after 15 minutes of driving the message came up that said Convenience functions have been restored. But after a week of normal starting and driving the features haven't been restored. ipod and steering wheel controls still don't work.
Any ideas? Even though the low voltage warning isn't coming up anymore could the battery not be strong enough now? I thought there was a second battery under the hood for some functions.
Any ideas? Even though the low voltage warning isn't coming up anymore could the battery not be strong enough now? I thought there was a second battery under the hood for some functions.
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Joined: Mar 2010
Posts: 2
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CLS55 AMG
