Electrical & Instrumentation

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Most liked posts	Author	Posted	Liked	Forum
Flashing Coolant LED	PaulFDennis	16 Jul 2025, 09:51	2 times this week	Electrical & Instrumentation
T25 dashboard dimmer switch	syncroandy	12 Jul 2025, 07:39	2 times this week	Electrical & Instrumentation

Topics

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Last post

Leisure battery - drain update

Last post by Ralf85 « 28 Jul 2017, 09:20
Replies: 8
by Ralf85 » 22 Jul 2017, 14:41

Having sorted out the battery light problem and now hopefully sorting out the stalling problem, I switched the test light on to check the leisure...

8 Replies

2405 Views

Last post by Ralf85
28 Jul 2017, 09:20
12v/240v?

Last post by kentishvanman « 27 Jul 2017, 12:11
Replies: 5
by 4AM » 26 Jul 2017, 21:25

Hi. New to this, just got an 84 Holdsworth Villa 2 and I'm a bit confused on the power. I'd assumed it would only run 12v appliances, but there's a...

5 Replies

1582 Views

Last post by kentishvanman
27 Jul 2017, 12:11
1983 Westfalia speedo reading too fast

Last post by Ginojasper « 26 Jul 2017, 05:33
Replies: 15
by Ginojasper » 24 Jul 2017, 19:00
1

2
Hi, in my westy the speedo is showing that I'm going faster than what I'm actually going.
Is this a common fault?
Is there a remedy?
Any help much...
15 Replies

8407 Views

Last post by Ginojasper
26 Jul 2017, 05:33
How to disconnect heated rear window?

Last post by Oldiebut goodie « 25 Jul 2017, 20:42
Replies: 3
by sweetaswesty » 25 Jul 2017, 15:12

I owe massive thanks to the forum for helping me out so many times in the past, though I think this may be my first post.
I'm removing the tailgate...

3 Replies

1044 Views

Last post by Oldiebut goodie
25 Jul 2017, 20:42
Brake light

Last post by mariner « 25 Jul 2017, 16:36
Replies: 5
by dogbreath100 » 05 Jul 2017, 19:38

Hi, I just noticed tonight that I have no brake lights .
Checked the fuses ( ceramic ) and all seems ok.
Had a look at the brake light switch,...

5 Replies

1581 Views

Last post by mariner
25 Jul 2017, 16:36
Squeaks!

Last post by Merrsh1 « 25 Jul 2017, 11:20
Replies: 2
by Merrsh1 » 24 Jul 2017, 18:02

Evening

VW T25 2.0 Aircooled 1981....

Recently developed a squeak from the engine bay. I've had the alternator refurbed by a mobile auto...

2 Replies

1035 Views

Last post by Merrsh1
25 Jul 2017, 11:20
Airflow meters

Last post by T3luestar « 23 Jul 2017, 22:06
Replies: 3
by skysurfin09 » 23 Jul 2017, 16:00

Does anyone know where to access an airflow meter for a 2.1 DJ engine or does anyone make the mod featured in the Tech Wiki to help solve the dreaded...

3 Replies

1180 Views

Last post by T3luestar
23 Jul 2017, 22:06
Headlights with Taifun Grille Questions

Last post by CovKid « 23 Jul 2017, 21:58
Replies: 8
by bmouthboyo » 26 Mar 2016, 11:29

OK so at present I have this setup:

I think its called a Taifun grill and I would like to clean and spray it black. The inner head lamp / sport...

8 Replies

4961 Views

Last post by CovKid
23 Jul 2017, 21:58
Zig success. HELP

Last post by meggles « 22 Jul 2017, 15:43
Replies: 3
by meggles » 21 Jul 2017, 23:26

I've rewired the bits in my van. The lighting, water pump, fridge etc. I decided I didn't need the Zig unit so decided to put it on here in swaps and...

3 Replies

1166 Views

Last post by meggles
22 Jul 2017, 15:43
grey and yellow wire that feeds foglights

Last post by glennhod « 22 Jul 2017, 10:29
Replies: 6
by glennhod » 21 Jul 2017, 20:04

what grade/amp is the grey and yellow wire that feeds the power to the fog light switch from the headlight switch mine decided to fry itself today...

6 Replies

1633 Views

Last post by glennhod
22 Jul 2017, 10:29
Advice..240v elects. Non VW

Last post by Oldiebut goodie « 21 Jul 2017, 22:24
Replies: 8
by kentishvanman » 20 Jul 2017, 17:38

Hi,
Just fitted new 1HP motor to my band saw but the cable from the NVR switch has 4 wires, brown/blue/earth and black.
Where does the black one go?...

8 Replies

2056 Views

Last post by Oldiebut goodie
21 Jul 2017, 22:24
Electrical issue with water pump

Last post by Oldiebut goodie « 21 Jul 2017, 08:29
Replies: 2
by Lilylilyone » 20 Jul 2017, 22:16

Hello,
My water pump stopped working, or to be more precise it became increasingly temperamental and then eventually it wouldn't work at all. My...

2 Replies

880 Views

Last post by Oldiebut goodie
21 Jul 2017, 08:29
Car Battery Sounds Dead but isn't

Last post by kevtherev « 21 Jul 2017, 05:56
Replies: 1
by Lilylilyone » 20 Jul 2017, 22:08

Hello,
I've got an issue with my car battery. The multi-meter reading shows 12.5v but once every 20 or so starts the battery suddenly goes low and...

1 Replies

802 Views

Last post by kevtherev
21 Jul 2017, 05:56
ht leads and misfire while in france

Last post by California Dreamin « 21 Jul 2017, 00:12
Replies: 4
by Shaundon » 11 Jul 2017, 12:42

Have a random misfire on a 1.9 petrol wbx, sometimes backfires. Checked the HT leads and they seemed to be out of range ie several Mega ohms instead...

4 Replies

1977 Views

Last post by California Dreamin
21 Jul 2017, 00:12
Leisure battery/electric problems

Last post by jlilford « 20 Jul 2017, 22:00
Replies: 9
by jlilford » 12 Jul 2017, 12:20

Hi all,

So my partner and I are based in South London and we bought our van a couple of months ago, it's a 1980 2l Aircooled Danbury pop top (used...

9 Replies

2794 Views

Last post by jlilford
20 Jul 2017, 22:00
Battery light issue - update

Last post by Ralf85 « 20 Jul 2017, 21:14
Replies: 5
by Ralf85 » 17 Jul 2017, 12:48

I have a westie with a leisure battery and a split charge relay fitted. In the past the battery warning light would stay on for a split second when...

5 Replies

1798 Views

Last post by Ralf85
20 Jul 2017, 21:14
Blue high beam light comes on when low beam is activated

Last post by C22 « 20 Jul 2017, 10:42
Replies: 8
by C22 » 18 Jul 2017, 13:24

Blue high beam light comes on when low beam is activated, switch to high beam and the blue light goes out. Basically it is doing the opposite to what...

8 Replies

2335 Views

Last post by C22
20 Jul 2017, 10:42
TCI-H System - Control Unit

Last post by JonathanR « 20 Jul 2017, 09:25
Replies: 4
by JonathanR » 19 Jul 2017, 13:43

Hi
1.9 Petrol Water cooled engine.
Have unscrewed the Control Unit from the engine bay for a bit of panel repainting.
The control unit has a heat...

4 Replies

1176 Views

Last post by JonathanR
20 Jul 2017, 09:25
Dip/side on when indicating

Last post by Sir Brixalot « 20 Jul 2017, 08:15
Replies: 4
by Sir Brixalot » 19 Jul 2017, 13:02

Looking at a reflection of the front end of my van at a junction. I noticed that when I indicate, the dip/side light is illuminated on the same side...

4 Replies

1244 Views

Last post by Sir Brixalot
20 Jul 2017, 08:15
Oil light

Last post by ChrisTriple « 18 Jul 2017, 06:43
Replies: 4
by ChrisTriple » 15 Jul 2017, 17:10

It seems my oil light's stopped working. I know it did but I can't say when it stopped.

Any thoughts where to check first? The dash has been out of...

4 Replies

1512 Views

Last post by ChrisTriple
18 Jul 2017, 06:43
Dash wiring. again!!

Last post by AngeloEvs « 15 Jul 2017, 09:54
Replies: 7
by IAN-H » 14 Jul 2017, 20:54

Where can I find a circuit diagram for the dash wiring for a DIESEL t25. All of the diagrams that I've found don't show the diesel version clearly. I...

7 Replies

2411 Views

Last post by AngeloEvs
15 Jul 2017, 09:54
wiring for split charge lucas SRB630 relay

Last post by chriscburgess « 14 Jul 2017, 22:17
Replies: 2
by chriscburgess » 14 Jul 2017, 17:07

Hi, I have a split charge relay under my drivers seat for the leisure battery and fridge. It is a Lucas SRB630. It has 5 connections labelled C1, C2,...

2 Replies

1444 Views

Last post by chriscburgess
14 Jul 2017, 22:17
Left Indicator Issue / Full Beam Indicator not working

Last post by bmouthboyo « 14 Jul 2017, 12:37

by bmouthboyo » 14 Jul 2017, 12:37

Lets start with a video:

onclick= window.open(this.href);return false;

So basically when I indicate left it works if I pull the stalk down a...

0 Replies

1375 Views

Last post by bmouthboyo
14 Jul 2017, 12:37
2 stage radiator fan switch wiring

Last post by JustSharon « 13 Jul 2017, 20:45
Replies: 5
by JustSharon » 13 Jul 2017, 17:16

Just attending to the (endless) list of jobs...
A while ago the 2 stage rad fan switch packed in so Pete bypassed this and used the 2nd stage. Now I...

5 Replies

1941 Views

Last post by JustSharon
13 Jul 2017, 20:45
Where does your needle sit (seen this question lots of times

Last post by bmouthboyo « 13 Jul 2017, 06:50
Replies: 38
by NicBeeee » 31 Oct 2014, 14:37
1

2

3
Although I have never suffered overheating problems (sorry for your woes djasse hope you get it sorted) it is not uncommon for me to put the heater...
38 Replies

16318 Views

Last post by bmouthboyo
13 Jul 2017, 06:50
Alternator wires

Last post by sandancer « 12 Jul 2017, 19:22
Replies: 4
by sandancer » 11 Jul 2017, 17:14

I know 2 wires go to the battery, Where does the 3rd wire from the alternator go to?

4 Replies

1153 Views

Last post by sandancer
12 Jul 2017, 19:22
Digital radio

Last post by JonathanR « 12 Jul 2017, 17:14
Replies: 4
by pan-al » 10 Jul 2017, 14:05

Anyone fitted a digital radio if so what's the best aerial to fit I've got one but it's got a copper strip that sticks to the Down pillar but it's a...

4 Replies

1612 Views

Last post by JonathanR
12 Jul 2017, 17:14
“start stop” technology

Last post by AllTheGear_NoIdea « 12 Jul 2017, 12:06
Replies: 4
by AllTheGear_NoIdea » 12 Jul 2017, 06:32

Hi all, newbie here from Wokingham, Berkshire. I have just bought a 1988 2.1 fuel injected Auto Caravelle GL and at the moment loving her despite...

4 Replies

1606 Views

Last post by AllTheGear_NoIdea
12 Jul 2017, 12:06
Cracked speedo glass/plastic

Last post by quattrodave « 12 Jul 2017, 06:08
Replies: 3
by quattrodave » 10 Jul 2017, 18:44

Does anyone know if it's possible to replace the (plastic or glass) panel in front of the speedo ?
Mines cracked right in the line of vision and...

3 Replies

1011 Views

Last post by quattrodave
12 Jul 2017, 06:08
Advice on Flexible Solar Panels

Last post by kevtherev « 10 Jul 2017, 17:11
Replies: 6
by TheDocmeister » 06 Jul 2017, 22:33

I've read through a lot of the chat about solar panels, right through the 'big thread' on the subject and got interested enough to make the...

6 Replies

1957 Views

Last post by kevtherev
10 Jul 2017, 17:11
ignition light comes on when going uphill

Last post by killerme « 09 Jul 2017, 15:03
Replies: 11
by killerme » 13 Jun 2017, 14:28

vw t25 1600TD: ignition light slowly and dimly comes on when going uphill or when accelerating. Goes off completely otherwise. I guess this could be...

11 Replies

3201 Views

Last post by killerme
09 Jul 2017, 15:03
Anyone tried gear reduction starter

Last post by R0B « 07 Jul 2017, 16:08
Replies: 6
by robobobo » 07 Jul 2017, 11:46

I've changed my starter motor twice in the last 5 years which on a Syncro is a pretty annoying job. First was a recon Bosch second was a new Remy...

6 Replies

1866 Views

Last post by R0B
07 Jul 2017, 16:08
Battery charge LED fault finding

Last post by marlinowner « 06 Jul 2017, 20:25
Replies: 17
by rockthebus » 02 Jul 2017, 21:46
1

2
Hi Chaps and chapesses
My charge/not charging LED is not lighting up at all. I'm really struggling for time to delve into this (childcare, work and...
17 Replies

4424 Views

Last post by marlinowner
06 Jul 2017, 20:25
Bad earth

Last post by robobobo « 06 Jul 2017, 11:53
Replies: 9
by robobobo » 06 Jul 2017, 08:01

Hi all
I've had some slow cranking no starting issues. Some new earth straps are on the way, I cleaned up the main battery earth but no joy. It does...

9 Replies

4290 Views

Last post by robobobo
06 Jul 2017, 11:53
Plug in RCD?

Last post by TheDocmeister « 05 Jul 2017, 15:09
Replies: 5
by TheDocmeister » 05 Jul 2017, 12:30

We're looking at heading off this weekend for our first real trip in the van, so I'm checking over the electrics today.

We have a (reasonably new...

5 Replies

1385 Views

Last post by TheDocmeister
05 Jul 2017, 15:09
Which model Hella spotlight to suit year?

Last post by nesty « 05 Jul 2017, 14:44
Replies: 10
by Gary. » 04 Jul 2017, 12:11

Does anybody know what model Hella spotlights were available in the years the t25 was manufactured? I'd like to add some and would prefer era...

10 Replies

2888 Views

Last post by nesty
05 Jul 2017, 14:44
Loose wire - best guesses or actual fact welcome

Last post by Sir Brixalot « 05 Jul 2017, 07:59
Replies: 6
by Sir Brixalot » 28 Jun 2017, 20:43

Any ideas for this wire it comes from that white clip. Although I've got a late van the last engine put in was early. Is this a redundant wire from...

6 Replies

2301 Views

Last post by Sir Brixalot
05 Jul 2017, 07:59
Water pump in sink not working

Last post by kevtherev « 04 Jul 2017, 08:35
Replies: 5
by Lilylilyone » 03 Jul 2017, 09:24

My first post here, so hi! The waterpump in the sink in our camper has now decided not to work. It was intermittent two trips ago and needed a bit of...

5 Replies

1318 Views

Last post by kevtherev
04 Jul 2017, 08:35
Leisure battery wiring on Syncro

Last post by Gary. « 04 Jul 2017, 07:42

by Gary. » 04 Jul 2017, 07:42

Morning Chaps and Chapesses,

I'm putting a leisure battery on the syncro, but as you may be aware the main battery is in the engine bay. Is there an...

0 Replies

1351 Views

Last post by Gary.
04 Jul 2017, 07:42
Speedo screws gauge

Last post by Sir Brixalot « 03 Jul 2017, 20:48

by Sir Brixalot » 03 Jul 2017, 20:48

Both the corners have been snapped off the speedo and I've always held it on with gaffer tap. Want to do something more permanent perhaps a couple of...

0 Replies

1244 Views

Last post by Sir Brixalot
03 Jul 2017, 20:48
Blower motor fuse

Last post by CovKid « 03 Jul 2017, 11:42
Replies: 16
by kervinmervin » 28 Jun 2017, 08:35
1

2
I daren’t really post this as I know its well covered, but, after spending the last week with the dash out replacing the heater blower motor and...
16 Replies

7091 Views

Last post by CovKid
03 Jul 2017, 11:42
Split charge relay wire

Last post by bigherb « 02 Jul 2017, 19:47
Replies: 8
by kezza87 » 27 May 2017, 06:42

Hi Guys, I finally got around to wiring up all the split charge stuff in my van. I used the original relay switch wire (green) that went to the zig...

8 Replies

2603 Views

Last post by bigherb
02 Jul 2017, 19:47
Propex HS2000 - Placing a filter on end pipes?

Last post by Oldiebut goodie « 30 Jun 2017, 23:43
Replies: 1
by nesty » 30 Jun 2017, 20:09

I have a Propex HS2000. All works fine. Though I tend to get flashing code 5 a lot (IE something stuck up the intake/outlet). I place a vacuum on the...

1 Replies

1090 Views

Last post by Oldiebut goodie
30 Jun 2017, 23:43
What do all these wires do?

Last post by scottbott « 30 Jun 2017, 19:20
Replies: 9
by TheBeaver » 30 Jun 2017, 09:32

I have been trying to diagnose some starter problems we have been having and in that process removed the passenger seat to get at the battery. In...

9 Replies

3152 Views

Last post by scottbott
30 Jun 2017, 19:20
Sink water pump reccomendation

Last post by philyoung « 28 Jun 2017, 20:44
Replies: 13
by itchyfeet » 16 Jun 2017, 11:28

Can anybody reccomend a water pump for my camper please
it has to be an inline pump in the 1/2 plastic pipe and must be quiet.
The pump fitted works...

13 Replies

2568 Views

Last post by philyoung
28 Jun 2017, 20:44
Alternator diode query

Last post by what2do « 26 Jun 2017, 20:47
Replies: 12
by what2do » 26 Jun 2017, 08:12

A bit of a specific question this but who knows, we may have an alternator specialist amongst us. When testing the diodes in a rectifier, does...

12 Replies

1871 Views

Last post by what2do
26 Jun 2017, 20:47
Flickering charging light - regulator query.

Last post by what2do « 25 Jun 2017, 19:08
Replies: 44
by what2do » 08 Jun 2017, 13:34
1

2

3
Recently replaced the regulator as the red light had begun to flicker, only at high rpm initially and then progressively it would illuminate more...
44 Replies

7500 Views

Last post by what2do
25 Jun 2017, 19:08
Difference between CU and DG ignition parts?

Last post by itchyfeet « 25 Jun 2017, 07:59
Replies: 2
by itchyfeet » 24 Jun 2017, 18:29

Anybody know if I can swap out a CU coil and ignition amp with DG parts just for the purpose of fault finding?
ignition module looks the same in...

2 Replies

1023 Views

Last post by itchyfeet
25 Jun 2017, 07:59
Live to diesel pump at fuse box?

Last post by vanagonvanagon « 24 Jun 2017, 11:00

by vanagonvanagon » 24 Jun 2017, 11:00

Hi, all..in an attempt to fit a stealth cut-off switch on my 1.7D van, I am hoping someone may be able to point me in the right direction as to...

0 Replies

1435 Views

Last post by vanagonvanagon
24 Jun 2017, 11:00

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