Electrical & Instrumentation

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Most liked posts	Author	Posted	Liked	Forum
LED warning lights for DASH voltage?	VWKat	21 Jun 2026, 19:02	Once this week	Electrical & Instrumentation

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Last post

Water temperature gauge and oil pressure switch

Last post by sump « 24 May 2023, 07:13
Replies: 4
by sump » 23 May 2023, 18:48

Puzzling over which wire goes where on my DG 1.9 engine. We took photo's of where each wire went and put them back as removed from the earlier engine...

4 Replies

991 Views

Last post by sump
24 May 2023, 07:13
oil pressure light on dash

Last post by gutmeg « 23 May 2023, 18:56
Replies: 19
by gutmeg » 04 May 2023, 17:52
1

2
1.9 petrol Holdworth villa 3 1984

HI all hope you all enjoy your bank holiday weekend. I would like some advice please . Van was laid up for winter...
19 Replies

5215 Views

Last post by gutmeg
23 May 2023, 18:56
Starter motor carbon brushes.

Last post by simonmarsh « 23 May 2023, 09:45
Replies: 3
by maxstu » 29 Jul 2019, 23:21

My local supplier in Margate has retired. Tried other venues but they want to rebuild for me and not supply parts. Anyone know of an old fashion shop...

3 Replies

1866 Views

Last post by simonmarsh
23 May 2023, 09:45
Water level sensor

Last post by AngeloEvs « 22 May 2023, 17:43
Replies: 6
by southernscouse » 19 May 2023, 12:04

Hi the red light is constantly flashing if I bridge the connection at the tank sensor it stops if I then turn off the ignition and start again light...

6 Replies

1289 Views

Last post by AngeloEvs
22 May 2023, 17:43
Belt squeak. Alternator or glow plugs?

Last post by ZsZ « 21 May 2023, 13:48
Replies: 12
by ZsZ » 14 May 2023, 19:25

Recently my alternator belt started to squeak badly on startups (1Z m-tdi with the JX dual V-belt setup and 90A diesel alt.) So I went and changed...

12 Replies

2117 Views

Last post by ZsZ
21 May 2023, 13:48
Fuse no 7 on 12 fuse panel

Last post by TONYT25T25 « 18 May 2023, 20:53
Replies: 2
by TONYT25T25 » 18 May 2023, 20:05

Fuse no 7 had blown on fuse panel behind glove box. Thought this was cig lighter as that was not working, on replacing no7 fuse it did work. But...

2 Replies

824 Views

Last post by TONYT25T25
18 May 2023, 20:53
Quick question for electric gurus

Last post by ajsimmo « 18 May 2023, 20:46
Replies: 19
by southernscouse » 12 May 2023, 18:19
1

2
On the thermostat housing 2.1 dj there are two sensors one black one blue
I have the black towards the front of van and blue at the side is this...
19 Replies

2880 Views

Last post by ajsimmo
18 May 2023, 20:46
glow plugs issue

Last post by colinthefox « 14 May 2023, 18:32
Replies: 4
by muttleypup » 29 Apr 2023, 19:00

I recently had an issue where the glow plug relay would buzz on occasions (no starting issues cold or hot, just really annoying!).....switched to a...

4 Replies

1232 Views

Last post by colinthefox
14 May 2023, 18:32
Reverse lights not working ! Help!!

Last post by herman_t25 « 13 May 2023, 18:39
Replies: 23
by herman_t25 » 10 May 2023, 16:50
1

2
Hi all,

Doing my final checks before the MOT tomorrow and the reverse lights aren’t working.

I’ve scoured the forum and checked so far

Bulbs....
23 Replies

4409 Views

Last post by herman_t25
13 May 2023, 18:39
Twin headlights - Switching between run and high

Last post by Robsey « 10 May 2023, 15:24
Replies: 5
by dickspanner » 09 May 2023, 20:15

Good evening everybody,

I am currently getting my crewcab ready for a MOT (now with a boring oil burner for those who know my crewcab the Cosworth...

5 Replies

1247 Views

Last post by Robsey
10 May 2023, 15:24
westy kitchen lights

Last post by mioba « 09 May 2023, 22:05
Replies: 4
by fh9977 » 07 May 2023, 12:46

hi,
would anyone have instructions on how to convert the westy kitchen light into a 12v socket?

light on my fan is factory original: not very...

4 Replies

1578 Views

Last post by mioba
09 May 2023, 22:05
Nsr indicator staying on

Last post by Robsey « 08 May 2023, 16:37
Replies: 5
by Pickles07 » 08 May 2023, 08:56

I have a fault with my rear ns indicator after I had to resolder my loom after I stupidly cut into it replacing my front panel it comes on with the...

5 Replies

1095 Views

Last post by Robsey
08 May 2023, 16:37
Alternator and Starter rewire.

Last post by davidoft1 « 08 May 2023, 10:57
Replies: 6
by shepster » 08 May 2023, 07:24

I'm about to rewire the Alternator and starter circuit following the Wiki info and would just like to confirm something.

The 2 cables going from the...

6 Replies

1230 Views

Last post by davidoft1
08 May 2023, 10:57
What size speakers?

Last post by fh9977 « 08 May 2023, 10:49
Replies: 14
by windydubber » 06 Mar 2015, 07:51

Hi,
What size speakers can you fit into the door cards? I am replacing the door cards so can cut fresh holes and fit new speakers!
Cheers

14 Replies

10924 Views

Last post by fh9977
08 May 2023, 10:49
Earth Strap

Last post by sauce1001 « 06 May 2023, 06:52
Replies: 7
by sauce1001 » 05 May 2023, 17:32

Hi all, I'm in the process of replacing my starter motor bush and I have this earth wire which I've found hanging. As per the pics, one end attached,...

7 Replies

2338 Views

Last post by sauce1001
06 May 2023, 06:52
Zig unit suddenly not working

Last post by Smiffo « 30 Apr 2023, 23:22
Replies: 1
by poolhallrichard » 30 Apr 2023, 22:06

Anybody got any suggestions as to why the hookup Zig unit (CF8) on my van has suddenly stopped working? I have had the van hooked up to power over...

1 Replies

762 Views

Last post by Smiffo
30 Apr 2023, 23:22
headlamps brightness boost

Last post by philmcC « 28 Apr 2023, 11:05
Replies: 10
by philmcC » 27 Apr 2023, 16:24

Sorry if this has been discussed before. Which is better, converting headlamps to LED, or using the campervan culture new wiring kit with extra...

10 Replies

2446 Views

Last post by philmcC
28 Apr 2023, 11:05
Engine interference on radio!

Last post by Rosie n' Jim « 25 Apr 2023, 06:06
Replies: 5
by mariner » 18 Apr 2023, 14:35

Hi all. Have just got round to wiring back up 4 additional speakers I have under my rear seat. They are connected to an amp which is in turn...

5 Replies

1264 Views

Last post by Rosie n' Jim
25 Apr 2023, 06:06
Leisure Battery Recommendation please

Last post by ZsZ « 24 Apr 2023, 15:05
Replies: 9
by wbmkk » 10 Apr 2023, 15:53

I am looking to buy a new leisure battery for my T25

Due to lockdowns and then a fault, my van wasn't used for well over 2 years.

The existing...

9 Replies

2113 Views

Last post by ZsZ
24 Apr 2023, 15:05
AFM question - DJ / MV / DH / GW engines

Last post by Smiffo « 10 Apr 2023, 19:57
Replies: 7
by Smiffo » 05 Sep 2022, 15:44

All.

Posting separately here outside of another thread, as these questions are specific to the Air Flow Meter that is between the air filter housing...

7 Replies

1630 Views

Last post by Smiffo
10 Apr 2023, 19:57
Delay switching on ignition

Last post by Aidan « 08 Apr 2023, 12:42
Replies: 1
by dhut6 » 08 Apr 2023, 08:35

Hi. My first time post here. Hopefully someone can help shed light on this.

I have a 1985 T25. 1.9 petrol. DG engine I think. Has worked...

1 Replies

901 Views

Last post by Aidan
08 Apr 2023, 12:42
1984 1.6TD T25 DIPPED BEAM RELAY

Last post by muttleypup « 08 Apr 2023, 07:25
Replies: 15
by stevecon » 02 Apr 2023, 15:52
1

2
Excuse my ignorance but I'm going round in circles trying to find an answer. I have side lights and full beam but the main beam is not functioning. I...
15 Replies

2972 Views

Last post by muttleypup
08 Apr 2023, 07:25
Battery charger question

Last post by Cecil « 07 Apr 2023, 16:19
Replies: 7
by CoalMarx » 25 Mar 2023, 11:30

Can anyone help me with this please?

I am planning on running 2 x 105Ah SLA batteries and will be storing the van in a lock up with no power...

7 Replies

1634 Views

Last post by Cecil
07 Apr 2023, 16:19
Alternator failing or wiring?

Last post by adebutter « 03 Apr 2023, 20:49
Replies: 2
by adebutter » 03 Apr 2023, 19:10

I’ve just completed a 350 mile trip in a T3 DG 1.9 to the Lakes.
The voltage was oddly low; hovering around 12V and just under.
I went to check the...

2 Replies

942 Views

Last post by adebutter
03 Apr 2023, 20:49
IC SN29736P from rev counter pulse shaper board

Last post by spanishfly « 01 Apr 2023, 16:45
Replies: 7
by spanishfly » 19 Dec 2022, 19:21

Another day another problem.

Does anyone know if the chip on the tachometer boards normally dies suddenly? Or any other reason for the tach to...

7 Replies

2576 Views

Last post by spanishfly
01 Apr 2023, 16:45
Time for new alternator?

Last post by Robsey « 31 Mar 2023, 23:52
Replies: 9
by Freddievan » 02 Jan 2023, 12:29

I replaced the voltage regulator on my alternator 3 years ago but I'm having the same issues again. Is it time to replace the alternator or just...

9 Replies

3200 Views

Last post by Robsey
31 Mar 2023, 23:52
Instrument panel wiring

Last post by AngeloEvs « 31 Mar 2023, 21:02
Replies: 1
by Gixerman60 » 31 Mar 2023, 11:21

Question re the screw terminals on the back of the panel. There are two sets, top and middle. Anyone know what they are for?
TIA

1 Replies

904 Views

Last post by AngeloEvs
31 Mar 2023, 21:02
Starter issues

Last post by Freddievan « 31 Mar 2023, 14:03
Replies: 4
by Freddievan » 31 Mar 2023, 09:38

I went to start the van a couple of weeks ago and there was nothing but a click . I thought the battery was totally flat. I tried it again and the...

4 Replies

1205 Views

Last post by Freddievan
31 Mar 2023, 14:03
Split charged

Last post by mrhutch « 28 Mar 2023, 13:41
Replies: 1
by budice83 » 28 Mar 2023, 11:56

Hello

Been a long time since I been here but good to be back......anyway got a westy and I’m thinking about putting the battery for the engine /...

1 Replies

822 Views

Last post by mrhutch
28 Mar 2023, 13:41
Cigarette Lighter Socket

Last post by mioba « 27 Mar 2023, 21:11
Replies: 11
by TONYT25T25 » 24 Mar 2023, 21:20

The connection sometimes work so suspect a loose connection. I think it is the original fitting with a greenish lit surround. Dont want tobreak it...

11 Replies

2236 Views

Last post by mioba
27 Mar 2023, 21:11
Solar panels

Last post by R0B « 20 Mar 2023, 21:18
Replies: 39
by TONYT25T25 » 01 Oct 2021, 21:30
1

2

3
Not an off grid person, but like to keep both my leisure battery and main battery charged by using a basic solar panel that just attaches to either...
39 Replies

9220 Views

Last post by R0B
20 Mar 2023, 21:18
Rear wiper issue

Last post by Robsey « 15 Mar 2023, 17:59
Replies: 10
by Drewk1 » 05 Mar 2023, 10:36

Just sorting out Vera ready for the new season and I decided to finally look at the non working rear wiper.
I know its not particularly good but its...

10 Replies

1729 Views

Last post by Robsey
15 Mar 2023, 17:59
Aircon problems

Last post by silverbullet « 15 Mar 2023, 08:09
Replies: 4
by 32wbx6 » 09 Mar 2023, 21:05

Hi there from South Africa.

I don't know how many UK busses have or use aircon? Perhaps someone can help me with a problem that I'm struggling...

4 Replies

1307 Views

Last post by silverbullet
15 Mar 2023, 08:09
Late wiring swap into early Van

Last post by Robsey « 14 Mar 2023, 22:37
Replies: 7
by sam16v » 13 Mar 2023, 19:29

Has anybody got any experience in swapping a complete wiring loom from a late van (89 caravelle) into an early Van ( 83 Devon).
I have acquired a...

7 Replies

2154 Views

Last post by Robsey
14 Mar 2023, 22:37
SHC dash PCB upgrade with Tach for Aricooled!

Last post by mioba « 14 Mar 2023, 22:04
Replies: 9
by Davegrohl99 » 26 Feb 2023, 20:33

Has anyone used this kit?

Very interested to see how it goes would be interested to see how the tachometer works out!

Sent from my iPhone using...

9 Replies

2520 Views

Last post by mioba
14 Mar 2023, 22:04
Blank Ashtray Pod.

Last post by Robsey « 01 Mar 2023, 00:54
Replies: 4
by Robsey » 23 Feb 2023, 20:03

A few werks ago I asked a company specialising in mods for the T25, whether they would supply an undrilled ashtray insert for my dash.

Tonight, they...

4 Replies

1344 Views

Last post by Robsey
01 Mar 2023, 00:54
ECU repair

Last post by R0B « 28 Feb 2023, 19:33
Replies: 7
by R0B » 15 Feb 2023, 12:28

Has anyone had one repaired? or can anyone recommend somewhere to get one looked at. Thanks.

7 Replies

1660 Views

Last post by R0B
28 Feb 2023, 19:33
Injection problem

Last post by Aidan « 21 Feb 2023, 16:14
Replies: 2
by camperman » 21 Feb 2023, 14:02

Whats the difference between a 251 907 393 D and a 251 907 393 C VW T25 2.1 Injection Idle control units

I know ones early and ones late but will...

2 Replies

954 Views

Last post by Aidan
21 Feb 2023, 16:14
T25 Starter Motor Problems - Earth

Last post by DoubleOSeven « 17 Feb 2023, 17:40
Replies: 20
by dannyjwood » 19 Nov 2017, 16:42
1

2
Hi all,

I have a 1.9 Petrol 1988 Caravelle. I started having starter issues, cleaned up all connections etc but it didn't make much of a difference,...
20 Replies

19628 Views

Last post by DoubleOSeven
17 Feb 2023, 17:40
Fuse box multi block

Last post by rubin « 12 Feb 2023, 20:42
Replies: 16
by rubin » 10 Feb 2023, 16:39
1

2
Could someone please tell me what this multi plugs runs?
I’m updating the leisure battery wiring and there is a wire spliced into this multi plug...
16 Replies

2910 Views

Last post by rubin
12 Feb 2023, 20:42
T25 leisure Battery

Last post by Robsey « 10 Feb 2023, 20:21
Replies: 14
by PenelopePitstop » 31 Jan 2023, 16:22

Advice Please:

My T25 leisure battery is dead. Well actually I've had the battery out and recharged it but still no use. No water pump gauge or...

14 Replies

2733 Views

Last post by Robsey
10 Feb 2023, 20:21
Faulty starting question

Last post by pleasestartnow « 08 Feb 2023, 21:37
Replies: 5
by pleasestartnow » 06 Feb 2023, 21:15

Hi there, I have my van in dry storage in a shed nearby and recently the shed owner had to move the van to get at something. Now he regularly does...

5 Replies

1162 Views

Last post by pleasestartnow
08 Feb 2023, 21:37
(Mis-diagnosed )Trigger wire replacement

Last post by shrig1969 « 05 Feb 2023, 18:05
Replies: 15
by shrig1969 » 19 Jan 2023, 01:29
1

2
It has been a little while since I last asked for help....
I recently broke down after a long drive, with the trigger wire spade connector being the...
15 Replies

4013 Views

Last post by shrig1969
05 Feb 2023, 18:05
Open barrel crimp tool help

Last post by 3cylinders « 05 Feb 2023, 14:03
Replies: 15
by 3cylinders » 28 Dec 2022, 12:02
1

2
Does anyone know of a crimp tool supplier for open barrel Faston type terminals which can crimp 9.53mm terminals with cable conductor CSA of 10mm2...
15 Replies

1647879 Views

Last post by 3cylinders
05 Feb 2023, 14:03
General Temp guage question

Last post by Rickbarr « 04 Feb 2023, 14:54

by Rickbarr » 04 Feb 2023, 14:54

Hi all and a happy weekend.. I have a 1986 T3 Westfalia with a 1.9 non turbo Diesal Aspirated conversion. Recently after a bad overheat: had the head...

0 Replies

38443 Views

Last post by Rickbarr
04 Feb 2023, 14:54
Thoughts on electrical set up

Last post by mariner « 01 Feb 2023, 21:39
Replies: 2
by mariner » 01 Feb 2023, 19:25

Hi all. Having remade my back locker and top locker I'm about to embark on the main unit. I intend to move the leisure battery from under the...

2 Replies

927 Views

Last post by mariner
01 Feb 2023, 21:39
Heater motor fan

Last post by mariner « 31 Jan 2023, 17:48
Replies: 25
by Jilldub » 21 Sep 2022, 21:01
1

2
When I bought the van, the heater motor fan wasn’t working so I can’t describe it’s failure mode.
I guess I need to replace the fan motor, switch,...
25 Replies

5640 Views

Last post by mariner
31 Jan 2023, 17:48
battery location

Last post by multisi « 31 Jan 2023, 09:17
Replies: 9
by Betty boop 1 » 29 Jan 2023, 16:48

good evening all ive been quiet for a while but i know have a question......how much of a job is it to reposition the starting/cranking battery from...

9 Replies

1954 Views

Last post by multisi
31 Jan 2023, 09:17
hazard light switch internals

Last post by Mocki « 30 Jan 2023, 22:33
Replies: 1
by Sans » 30 Jan 2023, 22:25

For anyone wondering what the inside of the hazard switch parts exist it should be as follows.

The switch housing (rocker)
Pin plate (the back...

1 Replies

754 Views

Last post by Mocki
30 Jan 2023, 22:33
VAG 111 999 155A Vehicle Alarm System

Last post by DoubleOSeven « 25 Jan 2023, 18:54
Replies: 4
by Robsey » 15 Jul 2022, 18:11

Last year I happened upon a N.O.S. VAG branded alarm from the 80s.

Part Number :- 111999155A / 111 999 155A for Volkswagen and Audi cars.
(No...

4 Replies

1733 Views

Last post by DoubleOSeven
25 Jan 2023, 18:54

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