GLS 450 start-stop
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S600
GLS 450 start-stop
I am the owner of a GLS 450 made in the first few weeks of production.
During my annual service (which for me ended up at 1.5 years) the starter battery was replaced under warranty.
About 2 weeks ago, the check engine light illuminated (50%-70% of the time) and at the service, the tech determined that the starter battery capacity was the root of the CEL, and replaced the battery.
This could be completely coincidental, but I generally get 4+ years of life out of a battery in a new car/SUV.
So, let us use this thread to accumulate statistics on starter battery replacements due to the stop-start feature on these SUVs. Just to see if battery life is being negatively impacted by this new feature.
During my annual service (which for me ended up at 1.5 years) the starter battery was replaced under warranty.
About 2 weeks ago, the check engine light illuminated (50%-70% of the time) and at the service, the tech determined that the starter battery capacity was the root of the CEL, and replaced the battery.
This could be completely coincidental, but I generally get 4+ years of life out of a battery in a new car/SUV.
So, let us use this thread to accumulate statistics on starter battery replacements due to the stop-start feature on these SUVs. Just to see if battery life is being negatively impacted by this new feature.
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A gaggle of MB's
Well... frankly ECO start-stop doesn't use the "starter" motor like conventional start up - think of ECO start-stop as as a "bump-start" triggered thru the fuel injection.
If ECO bothers you - check out the trickster USB reprogrammer from Vladimir on eBay
If ECO bothers you - check out the trickster USB reprogrammer from Vladimir on eBay
Thread Starter
MBWorld Fanatic!
Joined: Sep 2014
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S600
ECO does not bother me, I kinda like it.
However if it costs a battery per year (per 2 years), it is not worth the gasoline savings.
And where others have early battery replacements (or not) is the reason this thread exists.
I am particularly interested about those GLSs past their second year, and older.
However if it costs a battery per year (per 2 years), it is not worth the gasoline savings.
And where others have early battery replacements (or not) is the reason this thread exists.
I am particularly interested about those GLSs past their second year, and older.
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2019 GLS 63 AMG
Anyone has that OBD plug from ebay? Does it void warranty?
The ECO start-stop is very annoying to me. Sure you can just press the button turn it off, but everytime you change driving mode, it will restart on its own.
The ECO start-stop is very annoying to me. Sure you can just press the button turn it off, but everytime you change driving mode, it will restart on its own.
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Joined: Feb 2015
Posts: 29
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From: Maryland
E350 Sport, GLS450
I did a test drive of an '18 GLS450 and the engine isn't cutting out when stopping despite the indicator light being on. I thought it was standard for this MY, but maybe it was an option? It's not an AMG and I was in comfort mode.
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Joined: Feb 2015
Posts: 29
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From: Maryland
E350 Sport, GLS450
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2018 Mercedes Benz GLS 450
same here. light is green no CEL. never worked since i purchased it used with 59k from a non dealer.
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From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
There are a lot of conditions that must be met for the start/stop system to activate. From the Owner's manual:
The ECO start/stop function is operational when:
.
The ECO start/stop function is operational when:
.
- the indicator lamp in the ECO button is lit green.
- the Sport Plus or Sport drive program is not selected (Mercedes-AMG vehicles)
- no off-road program has been selected
- the outside temperature is within the range that is suitable for the system
- the engine is at normal operating temperature
- the set temperature for the vehicle interior has been reached
- the battery is sufficiently charged
- the system detects that the windshield is not fogged up when the air-conditioning system is switched on
- the hood is closed
- the driver's door is closed and the driver's seat belt is fastened
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Joined: Jul 2015
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2017 GLS 550
There are a lot of conditions that must be met for the start/stop system to activate. From the Owner's manual:
The ECO start/stop function is operational when:
.
The ECO start/stop function is operational when:
.
- the indicator lamp in the ECO button is lit green.
- the Sport Plus or Sport drive program is not selected (Mercedes-AMG vehicles)
- no off-road program has been selected
- the outside temperature is within the range that is suitable for the system
- the engine is at normal operating temperature
- the set temperature for the vehicle interior has been reached
- the battery is sufficiently charged
- the system detects that the windshield is not fogged up when the air-conditioning system is switched on
- the hood is closed
- the driver's door is closed and the driver's seat belt is fastened
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Joined: Oct 2023
Posts: 18
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2017 GLS 550
Battery replacement 2017 GLS 550
I bought my 2017 GLS 550 used Mercedes CPO around 2020 with 40k miles. Start stop did not function although no errors, green Eco light on dash. Did not have any issues starting the vehicle. Battery readings were fine on the vehicle’s hidden diagnostics screen: 12.8 volts not running, 13.7+ volts with engine running.
Had an issue with transmission not working correctly. Replaced the battery which didn’t fix the tranny, had to replace it
But now, with the new battery (Interstate) the start/stop works all the time, even below freezing including with the defroster on, rear window defroster on, etc. I didn’t do anything to teach the car that it had a new battery. Given the old battery had good readings, I don’t know what changed but now I get to turn off the eco mode every time I start the vehicle.
Had an issue with transmission not working correctly. Replaced the battery which didn’t fix the tranny, had to replace it
But now, with the new battery (Interstate) the start/stop works all the time, even below freezing including with the defroster on, rear window defroster on, etc. I didn’t do anything to teach the car that it had a new battery. Given the old battery had good readings, I don’t know what changed but now I get to turn off the eco mode every time I start the vehicle.
