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Eco activated but engine stays running
#1
Hi

Bought 62 plate multispace at the end of aug
The stop start eco worked all the time. Lately it only kicks in randomly. Maybe 3rd journey of the day.
Today not at all. The green eco symbol flashes when i press the brake but it doesn't cut the engine

Any ideas or experience with this?

Cheers

Roy
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#2
We find generally that the battery is knackered, hence stopping it from kicking in. They use a gel type battery, and only seem to last about 3 years.
Try charging it from a quality charger overnight, bet it will work fine after, or get the battery checked by someone with a decent battery tester.
[-] The following 1 user says Thank You to Lighty for this post:
  • brajomobil
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#3
Yes the temp is always below 90.
I'll try charging the battery. But we just came back from a long trip to Ireland so the battery should be charged well
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#4
Thanks for the replies. I have an obd I'll connect tomorrow
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#5
Ok i put on obd thr voltage driving os 14.7 . With eco on it drops to 13 when i stop and the eco tries but fails to lickin. I drove for a while with eco deactivated and then put it on and it worked for about 3 stops. So it seems it is a battery charge issue
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#6
(19-10-2016, 03:05 PM)Royberlingo2012 Wrote:  Ok i put on obd thr voltage driving os 14.7 . With eco on it drops to 13 when i stop and the eco tries but fails to lickin. I drove for a while with eco deactivated and then put it on and it worked for about 3 stops. So it seems it is a battery charge issue

First go with different battery like member Lighty suggested.

My bet is on alternator. IMHO one of 9 diodes are burned out...

If you don't have different battery you can check your battery health
with 55W bulb and mulimetar by measuring internal battery resistance.
It is a pretty descent way of knowing that your battery needs replacing.

If you need the procedure shout...

Best regards,
brajomobil Light
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#7
I think you are right Doofer.

I charged the battery overnight, it didnt make a difference

What did make a difference, is I was driving around for ages in Birmingham/Dudley etc lots and lots of stop starts, but I made sure the ECO was deactivated, then I turned it back on and it worked for about 3 stops then it went back to not turning off the engine again.

A long 180 mile drive just before that had no effect either.

So it must be the e-booster not charging as you say
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#8
Just a thought, but if the start stop engine requires an AGM battery, are you using the correct charger for it as these normally need a smart charger (certainly do in the marine industry) as they charge in a different way to a standard lead acid battery.


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2015 1.6 L1850 90ps In Artic Steel inc Look Pack and Lighting Pack.
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#9
(20-10-2016, 10:46 AM)Royberlingo2012 Wrote:  I think you are right Doofer.

I charged the battery overnight, it didnt make a difference

What did make a difference, is I was driving around for ages in Birmingham/Dudley etc lots and lots of stop starts, but I made sure the ECO was deactivated, then I turned it back on and it worked for about 3 stops then it went back to not turning off the engine again.

A long 180 mile drive just before that had no effect either.

So it must be the e-booster not charging as you say

If you have bad battery (battery that has smaller capacity than new battery) and you start your engine voltage
drop will be higher. ECU will see that voltage drop and would disable ECO mode. That is guess but it corresponds what Lighty has mentioned.
And corresponds by your findings. After 3 starts eco stop will not function any more.
So charging battery over night will not help at all. You are charging something that has small capacity. Starting takes a lot of current
that current empties bad battery in a second and you have large voltage drop. ECO has  safety mechanism that will not empty your
battery flat and leave you on the road.

Third time: Check your battery...

P.S. No more bets on alternator.

Best regards,
brajomobil
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#10
I sell the Exide ones for similar money, rarely get any back with issues , but my supplier shifts a lot, so they are always fresh stock.
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