Electrical & Instrumentation

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Most liked posts	Author	Posted	Liked	Forum
Dashboard PCB Replacement (CJH Design)	The Hairy Camper	Yesterday, 21:05	Once this week	Electrical & Instrumentation
Dashboard PCB Replacement (CJH Design)	The Hairy Camper	10 Sep 2025, 18:50	Once this week	Electrical & Instrumentation

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Last post

Got an electrical fault ? Read this first!

Last post by Hacksawbob « 10 Feb 2013, 23:56

by Hacksawbob » 10 Feb 2013, 23:56

Check your earths !

Many electrical issues are caused by corroded electrical contacts on the earthing points. Please read and check before posting...

0 Replies

46977 Views

Last post by Hacksawbob
10 Feb 2013, 23:56
Dashboard PCB Replacement (CJH Design)

Last post by TwinTurbo « Today, 12:07
Replies: 121
by The Hairy Camper » 17 Jun 2025, 10:43
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So, like I'm sure many of you have also experienced by now, the dashboard ribbon on my van is starting to fall apart in a few places. I've ordered a...
121 Replies

13626 Views

Last post by TwinTurbo
Today, 12:07
Headlights washers electrical connetions 89' Multivan

Last post by hotpod « 10 Sep 2025, 12:07
Replies: 1
by Wiader » 01 Sep 2025, 18:00

Hi, I bought kit to install headlights washers for my van (tank, pump, sprinklers, etc), but I'm missing relay, which one do I need? Also how to...

1 Replies

346 Views

Last post by hotpod
10 Sep 2025, 12:07
Can a T25 run an alternator charger?

Last post by Rosie n' Jim « 09 Sep 2025, 18:51
Replies: 4
by tomrussell94 » 28 Aug 2025, 11:34

Hi all,

I currently run my T25's power (lights/fridge etc) through a bluetti power station (AC180) as it saved the hassle and space of a leisure...

4 Replies

790 Views

Last post by Rosie n' Jim
09 Sep 2025, 18:51
usb into cigarette lighter

Last post by Aidan « 07 Sep 2025, 18:06
Replies: 9
by Pauld » 02 Sep 2025, 15:24

Hi, i got a usb port to fit instead of cigarette lighter. The rear of lighter has two brown wires together one red and one blue/Grey . The new...

9 Replies

623 Views

Last post by Aidan
07 Sep 2025, 18:06
Wiring confusion!!

Last post by Al Housman « 04 Sep 2025, 19:48
Replies: 5
by Al Housman » 03 Sep 2025, 16:00

I almost have the syncro back together and am just finishing the wiring but I seem to have a wire over and can't for the life of me figure out where...

5 Replies

446 Views

Last post by Al Housman
04 Sep 2025, 19:48
Battery Charging

Last post by isaacfull « 03 Sep 2025, 18:01
Replies: 5
by Burtybassett » 17 Jul 2024, 18:06

Hi guy's 👋
Question for the T25/T3 Massive...

Just taken my drivers seat out on my Westie to charge up the leisure battery ready for camping this...

5 Replies

1395 Views

Last post by isaacfull
03 Sep 2025, 18:01
Old solar panel- I think it's lost it's oomph

Last post by slowcoach « 03 Sep 2025, 10:12

by slowcoach » 03 Sep 2025, 10:12

I've had a rigid 130w panel on the roof for at least 12 years, doing it's thing with no maintenance at all. I saw about a year ago that's had an...

0 Replies

336 Views

Last post by slowcoach
03 Sep 2025, 10:12
Starter engine/solenoid problems

Last post by Vodim « 02 Sep 2025, 14:11
Replies: 10
by Vodim » 31 Aug 2025, 13:24

My T25 Diesel from 90 always starts very easily but all of a sudden it’s dead. When turning the key the starter engine starts but the typical sound...

10 Replies

631 Views

Last post by Vodim
02 Sep 2025, 14:11
Solar trickle charger

Last post by ajsimmo « 02 Sep 2025, 14:06
Replies: 10
by JeffRoo » 30 Aug 2025, 06:54

Hi all,
Been thinking about getting a couple of solar chargers to maintain leisure and main batteries. Has anyone got any recommendations on the ones...

10 Replies

725 Views

Last post by ajsimmo
02 Sep 2025, 14:06
Replacing the dashboard plastic PCB

Last post by TwinTurbo « 01 Sep 2025, 11:53
Replies: 446
by MidLifeCrisis » 13 Dec 2013, 13:55
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I just replaced the plastic PCB on my dashboard broadly following Covkid's instuctions in the Wiki;

I thought the PCB layout that I used might be...
446 Replies

214690 Views

Last post by TwinTurbo
01 Sep 2025, 11:53
Brake lights - now Sorted!

Last post by badgerfax « 30 Aug 2025, 07:18
Replies: 11
by TheRealExile » 13 May 2024, 18:05

Whilst going through testing all lights I noticed today that the brake lights don't work.

I pulled this out of the drivers side unit!

What is...

11 Replies

2089 Views

Last post by badgerfax
30 Aug 2025, 07:18
Leisure battery advice

Last post by dcworm57 « 30 Aug 2025, 04:56
Replies: 35
by Shinnster » 09 Apr 2025, 17:22
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Hi all,

the time has come to get a leisure battery in my van. Ive been using a second car starter battery for the past 2 years which has kind of...
35 Replies

14849 Views

Last post by dcworm57
30 Aug 2025, 04:56
Oil pressure buzzer

Last post by Robsey « 28 Aug 2025, 20:26
Replies: 4
by F41XTH » 28 Aug 2025, 11:58

I took both the rocket covers off to try and diagnose why they were both leaking, I've got new gaskets to put on but took it for a quick errand drive...

4 Replies

465 Views

Last post by Robsey
28 Aug 2025, 20:26
Reverse lights

Last post by F41XTH « 28 Aug 2025, 14:54
Replies: 2
by F41XTH » 25 Aug 2025, 17:10

I have no reverse lights at all. The bulbs work as I have checked them

A multimeter read on the reverse wire comes in at 3v, could anyone please...

2 Replies

498 Views

Last post by F41XTH
28 Aug 2025, 14:54
Gasure wiring diagram needed

Last post by crazydiamond « 27 Aug 2025, 09:15
Replies: 4
by crazydiamond » 25 Aug 2025, 15:07

My LPG ws installed hundreds of years ago by thr late great Steve Shaw Gasure. It stopped running today, and it appears that the shutoff solonoid on...

4 Replies

593 Views

Last post by crazydiamond
27 Aug 2025, 09:15
On Board Wifi Setup

Last post by keynsham1 « 26 Aug 2025, 20:56
Replies: 6
by keynsham1 » 25 Aug 2025, 18:07

Has anyone got experience of using this:

6 Replies

610 Views

Last post by keynsham1
26 Aug 2025, 20:56
Confused about solar arragements...

Last post by Rosie n' Jim « 26 Aug 2025, 18:56
Replies: 1
by bubba slapbum » 23 Aug 2025, 19:22

Why are you forbidden from doing uneven panel numbers on a single MPPT?

I have 3x in series already and would like to add an uneven number in...

1 Replies

413 Views

Last post by Rosie n' Jim
26 Aug 2025, 18:56
No parking light on an 84 westy

Last post by pirate-pete « 25 Aug 2025, 16:51
Replies: 7
by badgerfax » 23 Aug 2025, 09:49

My 83/84 Westy has no parking break warning light. Is this normal for early vans?
I had a look through the bentley PDF on here and it shows a parking...

7 Replies

612 Views

Last post by pirate-pete
25 Aug 2025, 16:51
rear brake lights

Last post by digaholedumper « 25 Aug 2025, 07:32
Replies: 12
by tonyandhelen » 17 Oct 2014, 15:03

hi all, just wondering if anyone has had the same problem i m experiencing. my rear brake lights seem to stay on even when the ignition is off,...

12 Replies

7422 Views

Last post by digaholedumper
25 Aug 2025, 07:32
lumpy idle and backfire

Last post by Dad « 24 Aug 2025, 18:58
Replies: 5
by JulesMartin » 02 Aug 2025, 08:41

Hi Guys, thanks in advance for reading and any help much appreciated. I'll have to give you a bit of background to the problem first. T25 1986...

5 Replies

709 Views

Last post by Dad
24 Aug 2025, 18:58
Coolant Temp LED Not working (No flashing or solid on when gauge Sig shorted to ground)

Last post by ManicGTI « 22 Aug 2025, 21:43
Replies: 7
by ManicGTI » 22 Aug 2025, 08:45

So, my coolant gauge LED does not illuminate. No flashing at start up, no flashing with level sender unplugged or 42/43 relay removed.
Also, no...

7 Replies

568 Views

Last post by ManicGTI
22 Aug 2025, 21:43
Some clarity for wire sizing for 2nd leisure battery

Last post by bubba slapbum « 21 Aug 2025, 16:33

by bubba slapbum » 21 Aug 2025, 16:33

Hi guys. I just read through this thread: viewtopic.php?t=176547

There seem to be two schools of though though which seem almost equally popular....

0 Replies

700 Views

Last post by bubba slapbum
21 Aug 2025, 16:33
Auxiliary water pump wire

Last post by DarrenC90 « 21 Aug 2025, 07:09
Replies: 25
by DarrenC90 » 24 Jul 2025, 21:57
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Hi fellow T25 owners. Please help. I bought a van with what I’m pretty sure is an AAZ engine conversion.

The auxiliary water pump does not come on...
25 Replies

36751 Views

Last post by DarrenC90
21 Aug 2025, 07:09
Earth points

Last post by R0B « 19 Aug 2025, 19:02
Replies: 2
by Jay Goll » 19 Aug 2025, 11:28

Hi,

I wanted to check the article on bad earths in wiki, anyone send it to me as I can’t open wiki on my phone for some reason.

Thanks

Jay

2 Replies

541 Views

Last post by R0B
19 Aug 2025, 19:02
1.9 WBX Distributor Woes

Last post by Callie’s Camper « 16 Aug 2025, 15:01
Replies: 3
by Callie’s Camper » 26 Jul 2025, 22:22

Good Evening!

First post so apologies is it’s in the wrong location…

I have a 1.9l WBX T25 panel van which I have been going through over the past...

3 Replies

3802 Views

Last post by Callie’s Camper
16 Aug 2025, 15:01
Westfalia tow bar wiring

Last post by Simon Baxter « 13 Aug 2025, 14:45
Replies: 4
by paradox » 21 Jul 2025, 18:38

Would the tow bar socket on a German import westfalia be wired the same as a uk trailer plug?

I connected my trailer up today and the lights are not...

4 Replies

8008 Views

Last post by Simon Baxter
13 Aug 2025, 14:45
T25 Autosleeper fresh water tank gauge and probe

Last post by Cobra88 « 12 Aug 2025, 13:34
Replies: 3
by Urge38 » 12 Aug 2025, 12:05

Hi Guys

need a little tec on the Lab-Craft ltd Model No DS 220d, more so, I am looking to know what the meter requires in hOms to read correctly.
My...

3 Replies

558 Views

Last post by Cobra88
12 Aug 2025, 13:34
Westfalia Atlantic rear lights

Last post by TwinTurbo « 07 Aug 2025, 04:34
Replies: 3
by paradox » 25 Jul 2025, 09:12

Are these the original rear lights for a 1990 westfalia Atlantic?
They have a black plastic section between the lamp and number plate that other t...

3 Replies

13774 Views

Last post by TwinTurbo
07 Aug 2025, 04:34
MOT failure. Watch video, are my stop lights working?

Last post by syncropatrick « 05 Aug 2025, 20:47
Replies: 2
by syncropatrick » 05 Aug 2025, 10:45

Van failed MOT on offside stop lamp.
I think they’re working correctly.
Please watch the 1 minute video and comment.
Hella bulb holders.
Each...

2 Replies

652 Views

Last post by syncropatrick
05 Aug 2025, 20:47
LED (DOT approved) Headlights

Last post by THE KESZTHELY KID « 05 Aug 2025, 12:25

by THE KESZTHELY KID » 05 Aug 2025, 12:25

Bueno Estente,

I have seen such as 7 inch LED headlights LAMP fit Land Rover Defender VW T25 T3 Vanagon sealed beam | eBay UK on Fleabay and...

0 Replies

861 Views

Last post by THE KESZTHELY KID
05 Aug 2025, 12:25
Battery drained after long ride

Last post by TwinTurbo « 03 Aug 2025, 06:42
Replies: 9
by FarWare12 » 30 Jul 2025, 17:56

I've been experiencing some electrical issues. I drove about 5 hours with the van and the next morning, the van would not start. The voltage on the...

9 Replies

18836 Views

Last post by TwinTurbo
03 Aug 2025, 06:42
Heater issue

Last post by Oldiebut goodie « 31 Jul 2025, 07:54
Replies: 2
by aimlessrock » 30 Jul 2025, 23:09

Folks I’m working though my van and noticed that the heater control was not a VW switch.

I removed the glove box and found the heater wire goe into...

2 Replies

4737 Views

Last post by Oldiebut goodie
31 Jul 2025, 07:54
Faulty Fuel Gauge - Anyone Else Experiencing This?

Last post by FarWare12 « 30 Jul 2025, 17:46
Replies: 2
by gluquestr » 13 May 2025, 20:33

Hi all,
Just wondering if anyone else has had issues with their fuel gauge recently? Mine seems to be acting up - showing as almost empty even after...

2 Replies

2897 Views

Last post by FarWare12
30 Jul 2025, 17:46
Replacing the starter battery

Last post by Sadie110 « 28 Jul 2025, 18:03
Replies: 12
by patrickpawsey » 03 Jun 2020, 13:46

Hi everyone,

I am about to replace the starter battery in our 1990 1.9dg, as it's not holding charge any more (I had to disconnect the manifold...

12 Replies

3557 Views

Last post by Sadie110
28 Jul 2025, 18:03
Oil pressure light.

Last post by BarnyE « 26 Jul 2025, 15:00
Replies: 6
by BarnyE » 20 Jul 2025, 15:31

Is there a way to check my oil system is doing what it should be doing?

I only ask as my oil pressure light is now illuminating. Comes on with...

6 Replies

4859 Views

Last post by BarnyE
26 Jul 2025, 15:00
Location of 1.9 DG oil pressure switches

Last post by PaulFDennis « 19 Jul 2025, 11:35
Replies: 4
by PaulFDennis » 18 Jul 2025, 15:10

I’ve been working on the dash instrumentation on my 1.9 DG engined T25 (1990/91) and found the oil pressure warning LED was removed. On replacing the...

4 Replies

1124 Views

Last post by PaulFDennis
19 Jul 2025, 11:35
Sooty plugs all of a sudden….? Summer holiday departure imminent..

Last post by spanishfly « 18 Jul 2025, 15:18
Replies: 3
by spanishfly » 17 Jul 2025, 16:19

You know those people you only hear from when they need something…? That appears to be me :oops: .

2.1dj syncro rebuilt by me a few years ago with...

3 Replies

1148 Views

Last post by spanishfly
18 Jul 2025, 15:18
Electric mirors

Last post by paradox « 18 Jul 2025, 11:04

by paradox » 18 Jul 2025, 11:04

My Atlantic has electric mirrors but the control knob does nothing.
What fuse and or relay should I be checking first?

0 Replies

1937 Views

Last post by paradox
18 Jul 2025, 11:04
pre-1984 fusebox wiring

Last post by Robsey « 17 Jul 2025, 21:52
Replies: 26
by LisaB4 » 21 Jul 2022, 12:51
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2
Does a simple diagram exist on what colour wire goes in what position on the old type fuse box? I've got a spaghetti mess and no idea what connects...
26 Replies

7665 Views

Last post by Robsey
17 Jul 2025, 21:52
Flashing Coolant LED

Last post by PaulFDennis « 16 Jul 2025, 09:51
Replies: 40
by Smiffo » 23 Mar 2025, 15:05
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Afternoon all.

Scanned the pages already for ’the' good diagram ( there used to be a good one on Wiki, but that seems empty now. )

Problem as...
40 Replies

19248 Views

Last post by PaulFDennis
16 Jul 2025, 09:51
Tried everything I can think of, but still no spark

Last post by ajsimmo « 13 Jul 2025, 09:21
Replies: 7
by zegarek » 10 Jul 2025, 12:34

I'm not after advice for rekindling a marriage (right now), just want to get my T25 back on the road.

I'm at the very modest limits of my knowledge,...

7 Replies

2921 Views

Last post by ajsimmo
13 Jul 2025, 09:21
T25 dashboard dimmer switch

Last post by Mocki « 12 Jul 2025, 11:04
Replies: 6
by MandyJ » 11 Jul 2025, 07:25

Hello, first post, apologies for not knowing technical names for things.

My dad owns a T25 1985 Caravelle that he has maintained for over 20 years....

6 Replies

3278 Views

Last post by Mocki
12 Jul 2025, 11:04
Replace analogue clock with tachometer

Last post by TwinTurbo « 10 Jul 2025, 22:07
Replies: 6
by PaulFDennis » 09 Jul 2025, 11:19

Is it possible to simply replace the analogue clock in the dash with an original VG T25 tachometer? Physically obviously yes but does the wiring loom...

6 Replies

2447 Views

Last post by TwinTurbo
10 Jul 2025, 22:07
Thin blue wire

Last post by TwinTurbo « 09 Jul 2025, 21:15
Replies: 6
by dogbreath100 » 09 Jul 2025, 02:36

Hi , the thin blue wire coming from the alternator has broken on the connector block maybe a foot or so from the alternator. . I cut the block off...

6 Replies

2006 Views

Last post by TwinTurbo
09 Jul 2025, 21:15
Solar, MPPT, Zig CF6, 2nd battery compatibility, t25 2L CU

Last post by Lord-won't-you « 04 Jul 2025, 00:24
Replies: 4
by Lord-won't-you » 28 Jun 2025, 20:21

Hi, I have an '82 t25 2L CU high top camper with a zig CF6, only one starter battery, but there are the cables for the leisure battery (under...

4 Replies

1761 Views

Last post by Lord-won't-you
04 Jul 2025, 00:24
Fuel gauge warning mark. 1.9 petrol

Last post by Aidan « 01 Jul 2025, 12:38
Replies: 1
by RCN » 01 Jul 2025, 11:10

Does anyone know when the needle hits the yellow warning mark how many litres are left or how many miles are left until you hit empty? I never let it...

1 Replies

1841 Views

Last post by Aidan
01 Jul 2025, 12:38
Odometer Km to miles

Last post by Aidan « 28 Jun 2025, 11:16
Replies: 5
by Van Rouge » 28 Jun 2025, 06:53

Hi guys
Can I modify the existing speedo or should I source a clock in miles and set the mileage accordingly?
Many thanks in advance
Kind regards...

5 Replies

2015 Views

Last post by Aidan
28 Jun 2025, 11:16
Do I have a wrong headlight lens? (L/H drive)

Last post by Aidan « 27 Jun 2025, 08:02
Replies: 5
by NoobyNiall » 26 Jun 2025, 15:39

Replacing headlights and noted one of the headlights is different (old one) than the other (new one)
Should they be similar?

edited to show...

5 Replies

2282 Views

Last post by Aidan
27 Jun 2025, 08:02
Trickle charger recommendations

Last post by colinthefox « 26 Jun 2025, 14:09
Replies: 3
by Volchara » 26 Jun 2025, 07:08

Hi all, as the title says I’m looking for a trickle charger for my T3 to keep the battery topped up while it sits on the driveway. Anyone got any...

3 Replies

1871 Views

Last post by colinthefox
26 Jun 2025, 14:09

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