c220d stop/start
03-20-2019, 09:52 AM
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w205
c220d stop/start
I have a c220c w205 2016.
The stop start worked fine for the first year, but now the green light does not come on until the car has covered over 70 miles. I have taken it to merc and they say there are no faults.
If I disconnect the battery for an hour, the stop start works fine again for about 3 weeks, then the distance you have to drive before the light goes green gets further and further.
The stop start worked fine for the first year, but now the green light does not come on until the car has covered over 70 miles. I have taken it to merc and they say there are no faults.
If I disconnect the battery for an hour, the stop start works fine again for about 3 weeks, then the distance you have to drive before the light goes green gets further and further.
12-29-2020, 09:40 AM
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640i Gran Coupé
Great thread! I'm currently (as you can probably tell) driving a BMW 5 series, but thinking I might go back to M-B after reading some great reviews on the refreshed E-class. I hate these start/stop systems, and so I found this thread.
Note that the eBay ODBII fix mentioned earlier in the thread clearly states on the auction description that it does not work on 2019+ models. It makes me wonder if this method described by the OP will work on the newer cars (such as the E450 I'm thinking about).
Note that the eBay ODBII fix mentioned earlier in the thread clearly states on the auction description that it does not work on 2019+ models. It makes me wonder if this method described by the OP will work on the newer cars (such as the E450 I'm thinking about).
02-28-2021, 07:52 PM
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GLK 350
I purposely joined so I can thank the OP. 
It works perfectly. I have a 2014 GLK350. I pulled the plug on the negative terminal as per OP. When I start the car - the ECO light stays on for about a couple of seconds and turns off automatically. You cannot turn it back on (of course). I did not observed an increase idle in neutral (~600rpm) or stopped in gear (~500rpm). I observed for a week with the plug on and with plug off and rpm is the same. Also with the discussions of alleged overcharging the battery - who cares. You are lucky get 4 to 5 years of life on a battery anyways as mine was already replaced.
Note for anyone that is doing it - not to confuse with a similar looking plug on the the positive terminal (not the actual battery terminal) as well. Just follow the OP.
It works perfectly. I have a 2014 GLK350. I pulled the plug on the negative terminal as per OP. When I start the car - the ECO light stays on for about a couple of seconds and turns off automatically. You cannot turn it back on (of course). I did not observed an increase idle in neutral (~600rpm) or stopped in gear (~500rpm). I observed for a week with the plug on and with plug off and rpm is the same. Also with the discussions of alleged overcharging the battery - who cares. You are lucky get 4 to 5 years of life on a battery anyways as mine was already replaced.Note for anyone that is doing it - not to confuse with a similar looking plug on the the positive terminal (not the actual battery terminal) as well. Just follow the OP.
