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Dying alarm battery 🪫 (MK2 Octavia)

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in Skoda Octavia Mk2 (2004 - 2013)

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I'm aware we've had a few threads on this subject. But I've not seen one on this particular question.

In short: can I just remove the alarm? Obviously I no longer have an alarm but I can live without it. I'll update my insurance accordingly.

Longer version:

2012 Octavia 1.4tsi estate. Had issues with the alarm going off regularly about 3 years ago. Not sure how but it just went away on its own.

It started going off again recently. Hazard lights would get flashing and then after a while the alarm would go off. Yesterday it happened loads. But it was late so I didn't do anything about it.

This morning I checked all the door, boot and bonnet sensors were working and they were. Went to turn the car round so I could remove the alarm and the battery was dead. It's 5.5 years old so about time. A mobile mechanic did it for just under £200. I mentioned the alarm going off and he said it'd be due to the low battery (I'd read it could be this too). Great.

10 minutes after he left the hazards were blinking and kept doing it.

So I took the alarm off. Cracked the case open and the PCB has corrosion on it from the battery leaking. So I can't just buy a new battery. Well I probably can't, assuming PCB is damaged.

Didn't want to put it back as alarm will keep going off. So I tested the car without it on and it's fine.

Put everything back. No issues or anything.

I could get a working one off eBay, fit a new battery and put it in my car. Or I could just ignore it. It's an old car. I'm leaning towards this option.

Any problems you could foresee?

Thanks

Edited by UnclePuncher

  • Guest changed the title to Dying alarm battery 🪫 (MK2 Octavia)
47 minutes ago, UnclePuncher said:

Any problems you could foresee?

We had a recurring false alarm problem on a previous MY2007 mk2 Octy. Our Indy said they usually just cut the wires as the car was getting on a bit and not a likely scrot target.

'snip' done and all was fine for as long as we had the car (about 4 years) and have not heard of any problems from the new owners (daughter, so of course I'd get to hear!).

IIRC the availability of official replacements has dried up (and they cost megabux!); they were available via aliexpress for a while but I haven't seen one on offer lately.

Just now, MikeTheThinker said:

We had a recurring false alarm problem on a previous MY2007 mk2 Octy. Our Indy said they usually just cut the wires as the car was getting on a bit and not a likely scrot target.

'snip' done and all was fine for as long as we had the car (about 4 years) and have not heard of any problems from the new owners (daughter, so of course I'd get to hear!).

IIRC the availability of official replacements has dried up (and they cost megabux!); they were available via aliexpress for a while but I haven't seen one on offer lately.

Great to hear.

My Octavia is quite battered tbh. My wife has pranged it 3 times (new driver) so it's definitely not likely to be a target for thieves. Unless they get really desperate. Despite it's poor looks it's still a fair bit below 100k so I'm not planning to give up on it just yet.

Thanks.

BTW here's the contents of a post I made back in 2020. I didn't save the link (duh!) so you'll have to suffer the repost ...

VAG (Skoda) alarm unit 1K0951605C

If your alarm is faulty and needs fixing / replacement here are some options:

1) new. cheapest via aliexpress.com from £40, delivery 2-8 weeks normally.

2) used, ebay or direct from a breaker, from £20 or so BUT the battery may be duff just like your existing one.

3) DIY fixit and replace your own battery.  A do-able DIY job with care, details available on Briskoda or the web. Problems: getting hold of a suitable replacement battery and not finding the old battery has leaked inside the alarm and killed part of the electronics

I will update with links to fixits anon.

Fits most VAG vehicles

Parts diagram for MY2008 Octavia https://skoda.7zap.com/en/cz/octavia/oct/2008-419/9/951-951020/#3

Table from skoda-parts.com

Part suitable for Škoda Octavia 2 , engines:

Capacity

Power

Code

Year

1.2 TSI

77kW/105PS

CBZB

02/2010 → 04/2013

1.4 16V

55kW/75PS

BCA

05/2004 → 05/2006

1.4 16V

59kW/80PS

BUD

05/2006 → 10/2008

1.4 16V

59kW/80PS

BUD

11/2008 → 06/2013

1.4 16V

59kW/80PS

CGGA

11/2008 → 06/2013

1.4 TSI

90kW/122PS

CAXA

11/2008 → 06/2013

1.4 TSI

96kW/134PS

CFBA

03/2010 → 05/2013

1.6 MPI

75kW/102PS

BGU

05/2004 → 10/2008

1.6 MPI

75kW/102PS

BSE

05/2004 → 10/2008

1.6 MPI

75kW/102PS

BSE

11/2008 → 06/2013

1.6 MPI

75kW/102PS

BSF

05/2004 → 10/2008

1.6 MPI

75kW/102PS

BSF

11/2008 → 06/2013

1.6 MPI

75kW/102PS

CCSA

05/2004 → 10/2008

1.6 MPI

75kW/102PS

CCSA

11/2008 → 05/2010

1.6 MPI

75kW/102PS

CMXA

11/2008 → 06/2013

1.6 LPG

75kW/102PS

CHGA

08/2009 → 11/2012

1.6 FSI

85kW/115PS

BLF

02/2004 → 10/2008

1.8 TSI

112kW/152PS

CDAB

03/2009 → 06/2013

1.8 TSI

112kW/152PS 4x4, SC

CDAB

03/2009 → 02/2013

1.8 TSI

118kW/160PS

BYJ

04/2007 → 03/2010

1.8 TSI

118kW/160PS

BZB

06/2007 → 10/2008

1.8 TSI

118kW/160PS

CDAA

11/2008 → 04/2013

1.8 TSI

118kW/160PS 4x4

CDAA

11/2008 → 02/2013

1.8 TSI

118kW/160PS

CEAA

03/2010 →

2.0 FSI

110kW/150PS

BLR

11/2004 → 10/2008

2.0 FSI

110kW/150PS 4x4

BLX

11/2004 → 10/2008

2.0 FSI

110kW/150PS

BLY

11/2004 → 10/2008

2.0 FSI

110kW/150PS 4x4

BVX

11/2004 → 10/2008

2.0 FSI

110kW/150PS

BVY

11/2004 → 10/2008

2.0 FSI

110kW/150PS

BVZ

11/2004 → 10/2008

2.0 TSI

147kW/200PS RS

BWA

10/2005 → 10/2008

2.0 TSI

147kW/200PS RS

CCZA

11/2008 → 02/2013

2.0 TSI

180kW/245PS RS 245, 6S, 7A

DHGA

02/2017 →

1.6 TDI CR

77kW/105PS 4x4

CAYC

06/2009 → 04/2013

1.6 TDI CR

77kW/105PS

CAYC

06/2009 → 04/2013

1.9 TDI PD

77kW/105PS

BJB

02/2004 → 10/2008

1.9 TDI PD

77kW/105PS

BJB

11/2008 → 04/2013

1.9 TDI PD

77kW/105PS

BKC

02/2004 → 10/2008

1.9 TDI PD

77kW/105PS 4x4

BKC

11/2004 → 10/2008

1.9 TDI PD

77kW/105PS 4x4

BLS

05/2006 → 10/2008

1.9 TDI PD

77kW/105PS

BLS

05/2006 → 10/2008

1.9 TDI PD

77kW/105PS 4x4

BLS

11/2008 → 11/2009

1.9 TDI PD

77kW/105PS

BLS

11/2008 → 05/2010

1.9 TDI PD

77kW/105PS

BXE

02/2004 → 10/2008

1.9 TDI PD

77kW/105PS 4x4

BXE

11/2004 → 10/2008

1.9 TDI PD

77kW/105PS

BXE

11/2008 → 04/2013

1.9 TDI PD

77kW/105PS 4x4

BXE

11/2008 → 12/2010

2.0 TDI CR

81kW/110PS

CFHF

02/2011 → 04/2013

2.0 TDI CR

81kW/110PS 4x4

CFHF

05/2011 → 02/2013

2.0 TDI CR

81kW/110PS

CLCA

03/2010 → 06/2013

2.0 TDI CR

85kW/116PS

DFGC

03/2015 →

2.0 TDI PD

100kW/136PS

AZV

02/2004 → 10/2008

2.0 TDI PD

100kW/136PS

AZV

11/2008 → 05/2010

2.0 TDI PD

103kW/140PS

BKD

02/2004 → 10/2008

2.0 TDI PD

103kW/140PS

BKD

11/2008 → 05/2010

2.0 TDI PD

103kW/140PS

BMM

11/2005 → 10/2008

2.0 TDI PD

103kW/140PS 4x4

BMM

07/2006 → 10/2008

2.0 TDI PD

103kW/140PS 4x4

BMM

11/2008 → 05/2010

2.0 TDI PD

103kW/140PS

BMM

11/2008 → 05/2010

2.0 TDI CR

103kW/140PS

CFHC

02/2010 → 05/2013

2.0 TDI CR

103kW/140PS 4x4

CFHC

05/2010 → 02/2013

2.0 TDI CR

103kW/140PS

CLCB

02/2010 → 05/2013

2.0 TDI PD

125kW/170PS RS

BMN

04/2006 → 05/2008

2.0 TDI CR

125kW/170PS RS

CEGA

05/2008 → 10/2008

2.0 TDI CR

125kW/170PS RS

CEGA

11/2008 → 02/2013

2.0 TDI CR

130kW/177PS NCZ

CRGA

03/2015 →

Part suitable for Škoda Fabia 2 , engines:

Capacity

Power

Code

Year

1.2 HTP

44kW/60PS

CGPB

11/2011 → 12/2014

1.2 HTP

44kW/60PS

CHFA

12/2006 → 12/2014

1.2 HTP

51kW/70PS

CEVA

01/2007 → 09/2010

1.2 HTP

51kW/69PS

CGPA

01/2007 → 12/2014

1.2 HTP

51kW/70PS

CJLB

03/2010 → 12/2014

1.2 HTP

55kW/75PS

CJLA

09/2010 → 08/2013

1.2 TSI

63kW/86PS

CBZA

03/2010 → 12/2014

1.2 TSI

77kW/105PS

CBZB

03/2010 → 12/2014

1.4

63kW/86PS

CDDA

12/2008 →

1.4 16V

63kW/86PS

CGGB

03/2010 → 12/2014

1.4

63kW/86PS

CLPA

12/2008 →

1.4 TSI

132kW/180PS RS

CAVE

05/2010 → 12/2014

1.4 TSI

132kW/180PS

CTHE

05/2010 → 12/2014

1.6 16V

77kW/105PS

BTS

04/2007 → 12/2014

1.6 16V

77kW/105PS

CFNA

03/2010 → 12/2014

1.6

77kW/105PS NCZ

CLSA

12/2008 → 05/2015

1.2 TDI CR

55kW/75PS

CFWA

03/2010 → 12/2014

1.4 TDI PD

51kW/68PS

BNM

02/2007 → 09/2010

1.6 TDI CR

55kW/75PS

CAYA

04/2010 → 12/2014

1.6 TDI CR

66kW/90PS

CAYB

03/2010 → 12/2014

1.6 TDI CR

77kW/105PS

CAYC

03/2010 → 12/2014

Suppliers (as of 2020-04-02):

Skoda-Parts.com 199.94 Euro https://www.skoda-parts.com/spare-part/1k0951605c-alarm-unit-skoda-26590.html

Ali Express £40 and up https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20200402034235&SearchText=1K0951605C

ebay £19 and up (cheapest only 2 hours left) https://www.ebay.co.uk/sch/i.html?_osacat=0&_odkw=1K0951605C&_from=R40&_trksid=m570.l1313&_nkw=1K0951605C+alarm&_sacat=0

10 minutes ago, UnclePuncher said:

My Octavia is quite battered tbh. My wife has pranged it 3 times (new driver) so it's definitely not likely to be a target for thieves. Unless they get really desperate. Despite it's poor looks it's still a fair bit below 100k so I'm not planning to give up on it just yet.

Octys by & large tend to just keep going. There are known weaknesses but as long as you pay attention to maintenance they're pretty reliable.

As regards your copilot's predilection for 'third party objects', mine has been driving for 40+ years and seems unable to avoid such interactions - typically once every 6 months on average. All cosmetic, none serious but still a PITA for insurance and for me (as I have to fix the 'adjustments'). Anyone have a Mazda 2 front wing going spare?

59 minutes ago, MikeTheThinker said:

BTW here's the contents of a post I made back in 2020. I didn't save the link (duh!) so you'll have to suffer the repost ...

VAG (Skoda) alarm unit 1K0951605C

If your alarm is faulty and needs fixing / replacement here are some options:

1) new. cheapest via aliexpress.com from £40, delivery 2-8 weeks normally.

2) used, ebay or direct from a breaker, from £20 or so BUT the battery may be duff just like your existing one.

3) DIY fixit and replace your own battery.  A do-able DIY job with care, details available on Briskoda or the web. Problems: getting hold of a suitable replacement battery and not finding the old battery has leaked inside the alarm and killed part of the electronics

I will update with links to fixits anon.

Fits most VAG vehicles

Parts diagram for MY2008 Octavia https://skoda.7zap.com/en/cz/octavia/oct/2008-419/9/951-951020/#3

Table from skoda-parts.com

Part suitable for Škoda Octavia 2 , engines:

Capacity

Power

Code

Year

1.2 TSI

77kW/105PS

CBZB

02/2010 → 04/2013

1.4 16V

55kW/75PS

BCA

05/2004 → 05/2006

1.4 16V

59kW/80PS

BUD

05/2006 → 10/2008

1.4 16V

59kW/80PS

BUD

11/2008 → 06/2013

1.4 16V

59kW/80PS

CGGA

11/2008 → 06/2013

1.4 TSI

90kW/122PS

CAXA

11/2008 → 06/2013

1.4 TSI

96kW/134PS

CFBA

03/2010 → 05/2013

1.6 MPI

75kW/102PS

BGU

05/2004 → 10/2008

1.6 MPI

75kW/102PS

BSE

05/2004 → 10/2008

1.6 MPI

75kW/102PS

BSE

11/2008 → 06/2013

1.6 MPI

75kW/102PS

BSF

05/2004 → 10/2008

1.6 MPI

75kW/102PS

BSF

11/2008 → 06/2013

1.6 MPI

75kW/102PS

CCSA

05/2004 → 10/2008

1.6 MPI

75kW/102PS

CCSA

11/2008 → 05/2010

1.6 MPI

75kW/102PS

CMXA

11/2008 → 06/2013

1.6 LPG

75kW/102PS

CHGA

08/2009 → 11/2012

1.6 FSI

85kW/115PS

BLF

02/2004 → 10/2008

1.8 TSI

112kW/152PS

CDAB

03/2009 → 06/2013

1.8 TSI

112kW/152PS 4x4, SC

CDAB

03/2009 → 02/2013

1.8 TSI

118kW/160PS

BYJ

04/2007 → 03/2010

1.8 TSI

118kW/160PS

BZB

06/2007 → 10/2008

1.8 TSI

118kW/160PS

CDAA

11/2008 → 04/2013

1.8 TSI

118kW/160PS 4x4

CDAA

11/2008 → 02/2013

1.8 TSI

118kW/160PS

CEAA

03/2010 →

2.0 FSI

110kW/150PS

BLR

11/2004 → 10/2008

2.0 FSI

110kW/150PS 4x4

BLX

11/2004 → 10/2008

2.0 FSI

110kW/150PS

BLY

11/2004 → 10/2008

2.0 FSI

110kW/150PS 4x4

BVX

11/2004 → 10/2008

2.0 FSI

110kW/150PS

BVY

11/2004 → 10/2008

2.0 FSI

110kW/150PS

BVZ

11/2004 → 10/2008

2.0 TSI

147kW/200PS RS

BWA

10/2005 → 10/2008

2.0 TSI

147kW/200PS RS

CCZA

11/2008 → 02/2013

2.0 TSI

180kW/245PS RS 245, 6S, 7A

DHGA

02/2017 →

1.6 TDI CR

77kW/105PS 4x4

CAYC

06/2009 → 04/2013

1.6 TDI CR

77kW/105PS

CAYC

06/2009 → 04/2013

1.9 TDI PD

77kW/105PS

BJB

02/2004 → 10/2008

1.9 TDI PD

77kW/105PS

BJB

11/2008 → 04/2013

1.9 TDI PD

77kW/105PS

BKC

02/2004 → 10/2008

1.9 TDI PD

77kW/105PS 4x4

BKC

11/2004 → 10/2008

1.9 TDI PD

77kW/105PS 4x4

BLS

05/2006 → 10/2008

1.9 TDI PD

77kW/105PS

BLS

05/2006 → 10/2008

1.9 TDI PD

77kW/105PS 4x4

BLS

11/2008 → 11/2009

1.9 TDI PD

77kW/105PS

BLS

11/2008 → 05/2010

1.9 TDI PD

77kW/105PS

BXE

02/2004 → 10/2008

1.9 TDI PD

77kW/105PS 4x4

BXE

11/2004 → 10/2008

1.9 TDI PD

77kW/105PS

BXE

11/2008 → 04/2013

1.9 TDI PD

77kW/105PS 4x4

BXE

11/2008 → 12/2010

2.0 TDI CR

81kW/110PS

CFHF

02/2011 → 04/2013

2.0 TDI CR

81kW/110PS 4x4

CFHF

05/2011 → 02/2013

2.0 TDI CR

81kW/110PS

CLCA

03/2010 → 06/2013

2.0 TDI CR

85kW/116PS

DFGC

03/2015 →

2.0 TDI PD

100kW/136PS

AZV

02/2004 → 10/2008

2.0 TDI PD

100kW/136PS

AZV

11/2008 → 05/2010

2.0 TDI PD

103kW/140PS

BKD

02/2004 → 10/2008

2.0 TDI PD

103kW/140PS

BKD

11/2008 → 05/2010

2.0 TDI PD

103kW/140PS

BMM

11/2005 → 10/2008

2.0 TDI PD

103kW/140PS 4x4

BMM

07/2006 → 10/2008

2.0 TDI PD

103kW/140PS 4x4

BMM

11/2008 → 05/2010

2.0 TDI PD

103kW/140PS

BMM

11/2008 → 05/2010

2.0 TDI CR

103kW/140PS

CFHC

02/2010 → 05/2013

2.0 TDI CR

103kW/140PS 4x4

CFHC

05/2010 → 02/2013

2.0 TDI CR

103kW/140PS

CLCB

02/2010 → 05/2013

2.0 TDI PD

125kW/170PS RS

BMN

04/2006 → 05/2008

2.0 TDI CR

125kW/170PS RS

CEGA

05/2008 → 10/2008

2.0 TDI CR

125kW/170PS RS

CEGA

11/2008 → 02/2013

2.0 TDI CR

130kW/177PS NCZ

CRGA

03/2015 →

Part suitable for Škoda Fabia 2 , engines:

Capacity

Power

Code

Year

1.2 HTP

44kW/60PS

CGPB

11/2011 → 12/2014

1.2 HTP

44kW/60PS

CHFA

12/2006 → 12/2014

1.2 HTP

51kW/70PS

CEVA

01/2007 → 09/2010

1.2 HTP

51kW/69PS

CGPA

01/2007 → 12/2014

1.2 HTP

51kW/70PS

CJLB

03/2010 → 12/2014

1.2 HTP

55kW/75PS

CJLA

09/2010 → 08/2013

1.2 TSI

63kW/86PS

CBZA

03/2010 → 12/2014

1.2 TSI

77kW/105PS

CBZB

03/2010 → 12/2014

1.4

63kW/86PS

CDDA

12/2008 →

1.4 16V

63kW/86PS

CGGB

03/2010 → 12/2014

1.4

63kW/86PS

CLPA

12/2008 →

1.4 TSI

132kW/180PS RS

CAVE

05/2010 → 12/2014

1.4 TSI

132kW/180PS

CTHE

05/2010 → 12/2014

1.6 16V

77kW/105PS

BTS

04/2007 → 12/2014

1.6 16V

77kW/105PS

CFNA

03/2010 → 12/2014

1.6

77kW/105PS NCZ

CLSA

12/2008 → 05/2015

1.2 TDI CR

55kW/75PS

CFWA

03/2010 → 12/2014

1.4 TDI PD

51kW/68PS

BNM

02/2007 → 09/2010

1.6 TDI CR

55kW/75PS

CAYA

04/2010 → 12/2014

1.6 TDI CR

66kW/90PS

CAYB

03/2010 → 12/2014

1.6 TDI CR

77kW/105PS

CAYC

03/2010 → 12/2014

Suppliers (as of 2020-04-02):

Skoda-Parts.com 199.94 Euro https://www.skoda-parts.com/spare-part/1k0951605c-alarm-unit-skoda-26590.html

Ali Express £40 and up https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20200402034235&SearchText=1K0951605C

ebay £19 and up (cheapest only 2 hours left) https://www.ebay.co.uk/sch/i.html?_osacat=0&_odkw=1K0951605C&_from=R40&_trksid=m570.l1313&_nkw=1K0951605C+alarm&_sacat=0

Fantastic resource Mike. Thanks!

I'm going to take it somewhere I can borrow their microscope to see if the PCB is damaged (once I've cleaned the corrosion off with iso alcohol). If it's ok I'll have a look at changing the battery.

But certainly for the time being I'll just do without.

56 minutes ago, MikeTheThinker said:

Octys by & large tend to just keep going. There are known weaknesses but as long as you pay attention to maintenance they're pretty reliable.

As regards your copilot's predilection for 'third party objects', mine has been driving for 40+ years and seems unable to avoid such interactions - typically once every 6 months on average. All cosmetic, none serious but still a PITA for insurance and for me (as I have to fix the 'adjustments'). Anyone have a Mazda 2 front wing going spare?

I should add that she's been pretty good for the past 12 months or do. We just had a rocky first 6 months where she seemed to get magnetically attracted to stationary objects. Thankfully two of those we owned (garden fence and wall) and the other was a friend's wall (but minor). Plus my 'repairs' (I use the term loosely) are far from professional.

That and the kids, who do a great job of wrecking the interior. 😂

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