will leaving battery neg disconnected overnight cause problems?

[Jonathan_1.8T]

Hi All,

 

as title.....can anyone advise what settings (apart from radio) will be affected please upon reconnection.

 

Thing is, I intend to replace the indicator/light stalk as we have lost dipped beam.

Already tried contact cleaner/ air duster can & checked fuses.....no joy.

New part and M12 spline bit at the ready........ after reading up on what's involved, I understand I need to remove the airbag & steering wheel.

 

Hence (as advised on the info threads I read) the intention to disconnect the battery overnight beforehand,to fully discharge everything in order to reduce the possibility of any airbag detonation slip ups.

 

Thanks in advance for any help/advice.

Edited 11 September, 2016 by Jonathan_1.8T

[Tech1e]

One touch windows

Clock

And ideally should have throttle body and heater flaps calibrated with VCDS (although not earth crushingly essential).

[@Lee]

 heater flaps calibrated with VCDS

 

that sounds intrigueing; would that help my Fabia blowing hot air when the AC is set to cold?

[Guest]

Over night is bit over the top really. It only needs to be 30 mins. Did mine without disconnecting it at all just left ignition off after releasing steering lock. Was in the trade for over 20 years and never had one airbag ever deploy because the battery wasn't disconnected and I've removed many. But for piece of mind and better to be safe than sorry, if you want to you can disconnect it.

[SuperbTWM]

You can't break your car by leaving the battery off it so don't worry.

 

Your radio should not need a code.

[Octyvrs03]

Mine has sat for a couple of days with the battery removed and nothing bad happened. Clock reset, radio didn't need a code.

[Tech1e]

that sounds intrigueing; would that help my Fabia blowing hot air when the AC is set to cold?

Whilst a flap calibration may help I'd wager it needs a new flap motor.

[@Lee]

Whilst a flap calibration may help I'd wager it needs a new flap motor.

that was the answer I was hoping wouldn't come lol

[Tech1e]

that was the answer I was hoping wouldn't come lol

[@Lee]

yarp

Address 08: Auto HVAC       Labels: 6Q0-820-045.LBL

   Controller: 6Y0 820 045

   Component: Klimaanlage        X0830

   VCID: F297BBCCADB7

7 Faults Found:

01271 -  Positioning Motor for Temperature Flap (V68)

            30-10 -  Open or Short to Plus - Intermittent

01596 -  Motor for Outside/Recirculated Air Flap (V154)

            30-10 -  Open or Short to Plus - Intermittent

01271 -  Positioning Motor for Temperature Flap (V68)

            28-00 -  Short to Plus

01271 -  Positioning Motor for Temperature Flap (V68)

            29-10 -  Short to Ground - Intermittent

01596 -  Motor for Outside/Recirculated Air Flap (V154)

            41-10 -  Blocked or No Voltage - Intermittent

01596 -  Motor for Outside/Recirculated Air Flap (V154)

            29-10 -  Short to Ground - Intermittent

01596 -  Motor for Outside/Recirculated Air Flap (V154)

            28-10 -  Short to Plus - Intermittent

[Tech1e]

yarp

Address 08: Auto HVAC       Labels: 6Q0-820-045.LBL

   Controller: 6Y0 820 045

   Component: Klimaanlage        X0830

   VCID: F297BBCCADB7

7 Faults Found:

01271 -  Positioning Motor for Temperature Flap (V68)

            30-10 -  Open or Short to Plus - Intermittent

01596 -  Motor for Outside/Recirculated Air Flap (V154)

            30-10 -  Open or Short to Plus - Intermittent

01271 -  Positioning Motor for Temperature Flap (V68)

            28-00 -  Short to Plus

01271 -  Positioning Motor for Temperature Flap (V68)

            29-10 -  Short to Ground - Intermittent

01596 -  Motor for Outside/Recirculated Air Flap (V154)

            41-10 -  Blocked or No Voltage - Intermittent

01596 -  Motor for Outside/Recirculated Air Flap (V154)

            29-10 -  Short to Ground - Intermittent

01596 -  Motor for Outside/Recirculated Air Flap (V154)

            28-10 -  Short to Plus - Intermittent

It's broke.

[Jonathan_1.8T]

thanks for the replies chaps.

[Jonathan_1.8T]

I've done the indicator stalk change, bit fiddly & time consuming but all seems well,lights working fine again, dipped restored thankfully.

Everything else seems ok, wipers fine,no airbag warning light, runs well, just as before, so hopefully the throttle body has reset itself ok.

 

I take it if it was "out" I'd notice some lumpiness or similar?

 

The battery negative was disconnect prior to starting the job, & was left disconnected for about 4 hours all told.

I reset clock & one shot windows, although this does not work from the door switch on passenger front door, only from drivers side master control unit.one shot also does not work on either rear window, but to be honest I don't know if it did before, or is meant to.Neither does my wife, & she's the one who drives it 95% of the time.Not fussed about it anyway tbh, but would be interested to hear how it's meant to be.

 

This guide was helpful;

http://www.briskoda.net/forums/topic/268780-how-to-change-indicator-stalk-on-superb-i-includes-removing-of-steering-wheel/

 

Thanks again.