Lingo 2012 Ehdi

This is the Forum for all your Citroen Technical Questions, Problems or Advice.

Moderator: RichardW

User avatar
Doo
(Donor 2022)
Posts: 461
Joined: 09 Sep 2019, 16:53
x 116

Lingo 2012 Ehdi

Post by Doo »

Does anyone know where the capacitors are for the stop/start system? Mine showing as faulty, but sometimes the light goes off even though the S/S doesn't function.

I have a fault code (can't recall number) and triangle warning with an ! in the middle.

I don't care for the S/S as generally it's a hindrance when you pull up to a light or junction and literally half a second you could be gone, but the engine stopping is a nuisance :roll:

Thanks :)
Has anyone seen the plot? :?
User avatar
GiveMeABreak
Forum Admin Team
Posts: 38226
Joined: 15 Sep 2015, 19:38
x 5938

Re: Lingo 2012 Ehdi

Post by GiveMeABreak »

The 'Ultra Capacitor' and related equipment is stored behind the from left hand wheel arch. Be very careful of residual voltages on this system! The power accumulator must be discharged before handling / removing using the relevant equiopment.
Please Don't PM Me For Technical Help

Marc
User avatar
Doo
(Donor 2022)
Posts: 461
Joined: 09 Sep 2019, 16:53
x 116

Re: Lingo 2012 Ehdi

Post by Doo »

GiveMeABreak wrote: 04 Dec 2023, 18:06 The 'Ultra Capacitor' and related equipment is stored behind the from left hand wheel arch. Be very careful of residual voltages on this system! The power accumulator must be discharged before handling / removing using the relevant equiopment.
That makes sense! I did see something in there and wondered what it was. I suspect it got wet & grotty. I should be able to fix it. Battery disconnect 24hrs, ign on/off & see the outcome.

Thick gloves....

Thank you.
Has anyone seen the plot? :?
User avatar
GiveMeABreak
Forum Admin Team
Posts: 38226
Joined: 15 Sep 2015, 19:38
x 5938

Re: Lingo 2012 Ehdi

Post by GiveMeABreak »

Yes, because it's independent of the main battery and releases 600 Amps in discharge, hence why it needs a tool to discharge the unit correctly.
Please Don't PM Me For Technical Help

Marc
User avatar
Doo
(Donor 2022)
Posts: 461
Joined: 09 Sep 2019, 16:53
x 116

Re: Lingo 2012 Ehdi

Post by Doo »

GiveMeABreak wrote: 05 Dec 2023, 00:39 Yes, because it's independent of the main battery and releases 600 Amps in discharge, hence why it needs a tool to discharge the unit correctly.
I haven't got around to it yet, but another little glitch showed up. ABS front left again.... Bought a sensor, but when I unplugged, the socket was full of moisture & a pin was green! So I cleaned it, used a mouse-tail file on the grotty pin, sprayed switch cleaner, left it a bit before blowing out with the airline & repeating the switch cleaner & blowing out a few moments later. Fault remained for 5 on/off cycles of ignition. Off I went after wrapping the plug/socket in self amalgamating tape, only to return home in 3rd gear with the ABS fault back. Would appear something else is afoot with the sensor so I'll have to replace it after all... :roll:

Maybe leave it to Christmas day & unplug the battery Christmas eve.

Question being, is it easier to remove the Ultra Cap with the wing in place or remove the wing? Reason I ask is that wing needs a paint anyway so removal to do filling & rubbing is easier on a flat surface, plus the garage is full of Suzuki's :lol: An SX4 and a 650 Burgman.
Has anyone seen the plot? :?
User avatar
GiveMeABreak
Forum Admin Team
Posts: 38226
Joined: 15 Sep 2015, 19:38
x 5938

Re: Lingo 2012 Ehdi

Post by GiveMeABreak »

Why do you want to take the capacitor off anyway? May as well leave it there in place unless you are replacing it.
Please Don't PM Me For Technical Help

Marc
User avatar
Doo
(Donor 2022)
Posts: 461
Joined: 09 Sep 2019, 16:53
x 116

Re: Lingo 2012 Ehdi

Post by Doo »

GiveMeABreak wrote: 11 Dec 2023, 15:28 Why do you want to take the capacitor off anyway? May as well leave it there in place unless you are replacing it.
Wanted to check connections. Did it earlier & found all were grotty. Cleaned everything and reassembled.

Currently interrogating system & found an interesting nugget. Showing Intake Air Temp (maf by any other word, though its called IAT on here) showing -40°C despite engine off and ambient 6°C according to the dash.

Now I imagine that, & the engine speed showing as "excessive" would, in my humble, have a detrimental effect on the stop/start status. Wouldn't it want to keep the engine running at certain cold temperatures? I suspect this is the cause of the other flagged issue with the DPF as I already cleaned it around a thousand miles ago. It wasn't blocked, but there was a good deposit of ash,which I cleaned using brick acid & water from the (cold) pressure washer set to low.

The Power Accumulator Reference value is showing 1.9v (engine off so....)

PA Recharging Current Reference Level showing zero, because engine is off.

Voltage Stabilizer Status showing Figure Incorrect. Again I hope its due to engine off & ECU will have stopped function due to perceived-40°C

PA State of Health 0%

I will check again with engine running, but I suspect I'll need a MAF before I go further.

Incidentally, I did run the engine for a few minutes before starting the interrogation just to make sure there was a charge in the battery. So coolant temp showing 25°C which means that sensor, at least, is operating within parameters.

What does your wealth of knowledge suggest regarding the PA system and the dodgy MAF sir? It feels like negative forty, but it's not frosty so that's a bonus.
Has anyone seen the plot? :?