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Stop Start Doesn't Work Very Often


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#46 FocuSmith

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Posted 20 January 2012 - 01:20 PM

I have just started having the same problem with my 1600 TDCI. Owned my car for 4 months now, and am used to the stop start system only working when there is no heat/aircon/lighting demands, etc. but it has just stopped working. Even after a long drive (200 miles) when everything is up to temperature, and battery well charged the engine no longer cuts out when car is at a standstill. Also if I press the on/off over-ride button, the dashboard "@" symbol doesn't illuminate anymore. I am sure the problem started to happen when I forgot to turn off ignition (after coming to a halt and the engine did cut out), before opening the driver door getting out and then turning off the ignition. So if anyone knows a trick or two to reset this function that is baffling my local dealers, I would be grateful.

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#47 MartinC1963

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Posted 16 June 2015 - 04:19 PM

Hi all.

 

Ford Focus 1.6TDI Titanium X just outside warrenty.  have stop start issue also. Drive 100 miles a day temp all ok. Reading previous comments looks potential battery however I also have issues on Cruise control, speed limiter and hill start assist at same time.  Assuume couple of faults together but have to say Fords dealership have been so unhelpful and say despite the initial £96 to diagnose that they want the car for approx 5 days do not know how much will cost and will not supply quote.  Suggestions?

 

At moment so not happy with dealerships.



#48 iantt

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Posted 16 June 2015 - 05:23 PM

Try resetting battery monitor for stop start. Havent got time now to explain how to do it, as I need to go back over my previous posts to find it, will post up later so you can have a go .

#49 iantt

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Posted 16 June 2015 - 09:06 PM

Ign on for 10 secs
press rear foglamp switch 5 times
press hazard switch 3 times
wait up to 10 secs while watching battery light
battery light flashes
ign off.

it may or may not fix your problem,worth a go though

think all your problems are related to the clutch position switch.
hill launch assist, cruise/ speed limit and stop start all require clutch position to work

#50 MartinC1963

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Posted 17 June 2015 - 11:07 AM

Many thanks I will try this one will report back.



#51 MartinC1963

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Posted 17 June 2015 - 12:02 PM

Tried the above and did not work. Will have battery check completed also



#52 iantt

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Posted 17 June 2015 - 12:12 PM

Make sure its the rear fog you try,
if the battery light doesnt flash then theres a current issue with stop start. Suprissed if your dealer cant fix it, make sure the battery is tested with a stop start battery tester, normal tester wont show true state of battery

#53 mykal

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Posted 19 June 2015 - 10:57 AM

I have this stop/start problem with my 1.6 Ecoboost Focus. The main agents told me that the battery was not fully charged causing this problem. I charged the battery & now everything works correctly. Could the Alternator need to have a higher output to keep all the electrics working?



#54 MartinC1963

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Posted 19 June 2015 - 03:14 PM

Hello Yes tried all still the same looks like Fords cannot find either will keep trying though

Thanks



#55 iantt

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Posted 19 June 2015 - 03:31 PM

If your dealer cant fix it then thats a poor dealer. As saying goes , its not rocket science , stop start not complicated.

#56 MartinC1963

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Posted 19 June 2015 - 03:38 PM

You would think, they want the car for 5 days, asked for a quote and they will not supply so could be quick or thousands? Just cannot tell me. I will leave overnight on charge again and see though.  Thanks



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