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

Local Guru Needed

Last post by Mocki « 19 Nov 2023, 16:11
Replies: 1
by Rubbersoul71 » 19 Nov 2023, 14:07

I'm new to T25s and my first bus, an 89 1.6td has clearly had the cowboys in.

Can anyone local to Sheffield spare a few hours on a Saturday or...

1 Replies

8349 Views

Last post by Mocki
19 Nov 2023, 16:11
Brake reservoir missing something

Last post by R0B « 19 Nov 2023, 15:33
Replies: 2
by Rubbersoul71 » 19 Nov 2023, 13:51

Can anyone please advise what missing from the top of the brake fluid reservoir?

It's clearly lacking something and brake fluid has definitely been...

2 Replies

7603 Views

Last post by R0B
19 Nov 2023, 15:33
T25 1.9 dg no dash power

Last post by mike2drummond « 17 Nov 2023, 09:33
Replies: 4
by mike2drummond » 14 Nov 2023, 14:54

I have an electrical problem where there is no power to the instrument cluster on my 1.9 dg t25.

There is no power coming in on pin 8 of the 14 pin...

4 Replies

8123 Views

Last post by mike2drummond
17 Nov 2023, 09:33
Coil renewal

Last post by R0B « 12 Nov 2023, 22:37
Replies: 1
by kentishvanman » 12 Nov 2023, 22:04

Does the performance of a coil reduce over the years?
Mine is the original one 1987 and I wondered if it should be retired?

1 Replies

7349 Views

Last post by R0B
12 Nov 2023, 22:37
Flashing LED batten lights

Last post by KOTSY « 11 Nov 2023, 16:43
Replies: 2
by KOTSY » 08 Nov 2023, 07:38

Hi everyone. Fitted new batten led lights in my pit about 18 months ago.now when they have been on about 15 mins. They start to flash on and off.it...

2 Replies

7796 Views

Last post by KOTSY
11 Nov 2023, 16:43
Oil pressure switch

Last post by sump « 11 Nov 2023, 13:18
Replies: 19
by sump » 07 Nov 2023, 19:34
1

2
Hi all,

Driving home tonight and the oil light came on :oops: Alarm bells rang out loud. Pulled over asap pulled lid off, all dry no leaks, water...
19 Replies

18282 Views

Last post by sump
11 Nov 2023, 13:18
Interior lights delay relay

Last post by ZsZ « 08 Nov 2023, 20:01
Replies: 11
by cjaysx » 22 Oct 2023, 16:34

Hi all,

Wondering if anyone has a wiring diagram for the interior light dimmer relay (looks like these were pretty rare on the later models)?...

11 Replies

14691 Views

Last post by ZsZ
08 Nov 2023, 20:01
Wiring to Rear Lights

Last post by Magic01 « 07 Nov 2023, 22:32
Replies: 10
by Magic01 » 06 Nov 2023, 19:48

Hi all

Still new to this T25 ownersgip and only my 3rd post

I'm in the process of getting my van ready for MOT and trying to fix a number of...

10 Replies

10845 Views

Last post by Magic01
07 Nov 2023, 22:32
Tap operation on 1980 Westphalia Joker

Last post by davidoft1 « 04 Nov 2023, 11:55
Replies: 2
by THE KESZTHELY KID » 13 Aug 2023, 14:19

Hola Amigo',

Jut spent an hour trying to get the tap to work on my recently acquired 1980 Westphalia Joker. The water tank is just over half full...

2 Replies

7700 Views

Last post by davidoft1
04 Nov 2023, 11:55
RM12F fridge relay for holdsworth villa 3

Last post by Oldiebut goodie « 01 Nov 2023, 18:10
Replies: 5
by Hash brown » 26 Oct 2014, 19:14

So after getting to grips with the new van the first task to get the LB charging by fitting a split charger and taking out all the old bodged wiring...

5 Replies

10235 Views

Last post by Oldiebut goodie
01 Nov 2023, 18:10
Problem starting engine - electrical-related

Last post by cotswoldstony « 01 Nov 2023, 15:47
Replies: 6
by fragmented » 25 Oct 2023, 16:17

Hi all

I have had a problem that has got progressively worse over time. If my starter battery is freshly charged it will start. After driving for a...

6 Replies

9977 Views

Last post by cotswoldstony
01 Nov 2023, 15:47
1983 1.9 DG compatible wiring loom?

Last post by Aidan « 31 Oct 2023, 14:31
Replies: 1
by Fun. » 30 Oct 2023, 22:45

Hi All

I’m trying to find a part like this for a 1983 1.9 DG ignition system (I think), this one doesn’t say it’s compatible and I’m wondering if...

1 Replies

7307 Views

Last post by Aidan
31 Oct 2023, 14:31
Brake warning light

Last post by CombiBlues « 25 Oct 2023, 15:34
Replies: 9
by JeffRoo » 27 Sep 2018, 19:19

Hi
I have a ‘84 Caravelle and on the dash top left hand side is a brake warning indicator. Nothing ever lights up. Ive had a look and a unit is...

9 Replies

11910 Views

Last post by CombiBlues
25 Oct 2023, 15:34
Inside of Headlight Glass Dirty. Cleaning Ideas Please.

Last post by mike the van « 20 Oct 2023, 17:45
Replies: 6
by PaulG » 20 Oct 2023, 09:50

Hi all, I searched but did not find so wondered if anyone else has experienced the above please?

I got an MOT advisory yesterday that my headlights...

6 Replies

9136 Views

Last post by mike the van
20 Oct 2023, 17:45
Headlamp switch variants

Last post by ZsZ « 11 Oct 2023, 13:32
Replies: 7
by Simon Baxter » 10 Oct 2023, 21:59

How do, with supplies drying up of some of the oddball headlamp switches leaving 2 switches available on the aftermarket I thought I'd dig in to ETKA...

7 Replies

10203 Views

Last post by ZsZ
11 Oct 2023, 13:32
Starting Issue

Last post by RogerT « 10 Oct 2023, 21:28
Replies: 7
by newkid » 10 Oct 2023, 01:21

Hi.

Hoping someone can help. Mum's van has for the 11 years of ownership had a starting issue that i finallywant to resolve.

It's a 1984 1.6cs....

7 Replies

9121 Views

Last post by RogerT
10 Oct 2023, 21:28
Immobilizer not working

Last post by Simon Baxter « 10 Oct 2023, 21:14
Replies: 3
by JohnRedpath » 03 Jul 2023, 02:57

Hello everyone.
My T25 immobilizer has stopped working but the van runs fine.
Normally if I try to drive the van with the immobiliser switched on....

3 Replies

7761 Views

Last post by Simon Baxter
10 Oct 2023, 21:14
Split charge relay on 1983 Trident

Last post by Mocki « 07 Oct 2023, 18:28
Replies: 1
by stephenwalls » 07 Oct 2023, 18:19

Hi everyone,
I want to fit a split charge relay on my 1988 T25 autosleeper Trident, so I need to run a wire from the van battery under the drivers...

1 Replies

6998 Views

Last post by Mocki
07 Oct 2023, 18:28
Rev counter

Last post by Ckent « 06 Oct 2023, 17:36
Replies: 5
by Ckent » 03 Oct 2023, 19:48

Looking to fit a rev counter (bolt on) simply as new to vw (especially of this era) - is there a signal I can take anywhere near the dash (as many...

5 Replies

8834 Views

Last post by Ckent
06 Oct 2023, 17:36
T25 1.9 dg PETROL NO SPARK

Last post by Stesaw « 04 Oct 2023, 17:32
Replies: 4
by VERAT25 » 02 Oct 2023, 12:37

looking for some help please (based in cardiff )
just went to start van after 3 weeks (running fine last run)
i have no spark at the plugs/ have...

4 Replies

8176 Views

Last post by Stesaw
04 Oct 2023, 17:32
Not starting, could the horn issue be contributing to this?

Last post by AlBundy « 29 Sep 2023, 20:57
Replies: 4
by AlBundy » 28 Sep 2023, 10:24

The van is currently at the body shop for some rust repair and bodywork fixes, but after having left it there, they haven't been able to get it...

4 Replies

8106 Views

Last post by AlBundy
29 Sep 2023, 20:57
Glow plugs not working after head gasket replacement

Last post by CoalMarx « 29 Sep 2023, 06:50
Replies: 2
by CoalMarx » 28 Sep 2023, 18:46

Unfortunately i blew the gasket on my 1.7 diesel ky. I already had a problem with a buzzing dash and oil filter light, but then we lost the lights on...

2 Replies

7472 Views

Last post by CoalMarx
29 Sep 2023, 06:50
Radiator only works on full speed

Last post by TONYT25T25 « 26 Sep 2023, 20:52
Replies: 3
by hightoprob » 24 Sep 2023, 21:27

Hi. I've been trying to get my rad fan working correctly on my 1983 1.9dg (previous owner had it running on a chicken switch using flex power cable...

3 Replies

7619 Views

Last post by TONYT25T25
26 Sep 2023, 20:52
Horn troubles

Last post by matthew13 « 25 Sep 2023, 20:29
Replies: 16
by matthew13 » 24 Sep 2023, 13:18
1

2
Hi all, I have 1983 2ltr Aircooled van. Horn had stopped working so just replaced it and now all I get when I press the horn inn the steering wheel...
16 Replies

17494 Views

Last post by matthew13
25 Sep 2023, 20:29
FM Aerial questions

Last post by Mocki « 24 Sep 2023, 19:08
Replies: 6
by Donald360 » 23 Sep 2023, 13:32

Hi

I need to refit an aerial for the radio in my van, but I don't want to drill a hole in the newly restored body if I can help it.

Do I need to...

6 Replies

9574 Views

Last post by Mocki
24 Sep 2023, 19:08
Original radio wesfalia joker

Last post by Marktwain « 23 Sep 2023, 10:21
Replies: 11
by Marktwain » 11 Sep 2023, 02:03

Does anyone know which radio would have been fitted in a 1989 westfalia joker, when they were new? Mine is a RHD uk market one. I am interested in...

11 Replies

12507 Views

Last post by Marktwain
23 Sep 2023, 10:21
Change Hall Sender without removing distributor

Last post by Rich75 « 21 Sep 2023, 21:53
Replies: 2
by Rich75 » 21 Sep 2023, 12:25

Hi

I had a look at the wiki but couldn't find anything, apologies if Ive missed it - is it possible to change the hall sender without removing the...

2 Replies

7357 Views

Last post by Rich75
21 Sep 2023, 21:53
Fuel Gauge/Sender Variants

Last post by R0B « 21 Sep 2023, 21:22
Replies: 154
by CJH » 23 Jul 2018, 15:25
1

…

7

8

9

10

11
I was doing some sums to figure out what resistor values to use to make a 'low fuel' warning lamp circuit (see this thread ). I checked Bentley for...
154 Replies

1197942 Views

Last post by R0B
21 Sep 2023, 21:22
1988 Trident split charge relay location

Last post by mickcorr « 21 Sep 2023, 10:18
Replies: 7
by stephenwalls » 14 Sep 2023, 15:14

Hi,

I am now a very new and proud owner of a 1988 VW T25 Trident Hi Top autosleeper. The van didn't come with a leisure battery, although all the...

7 Replies

9726 Views

Last post by mickcorr
21 Sep 2023, 10:18
Alternator Identification

Last post by T25Colin « 16 Sep 2023, 22:09
Replies: 9
by T25Colin » 13 Aug 2023, 10:20

Hi All,

Sod’s Law driving to overnight ferry and it started over charging and cooking the battery. My digital read out was showing 16.7volts at the...

9 Replies

9898 Views

Last post by T25Colin
16 Sep 2023, 22:09
Alternator field collapse?

Last post by ZsZ « 16 Sep 2023, 16:18
Replies: 6
by ZsZ » 21 Jun 2023, 18:56

I had a strange hiccup today.
We are on the last leg of a 3 week roadtrip.
I was driving on the german highway, around 100-110kmph (~3000rpm) when...

6 Replies

9221 Views

Last post by ZsZ
16 Sep 2023, 16:18
Fuel gauge

Last post by Mocki « 16 Sep 2023, 07:10
Replies: 2
by Ckent » 16 Sep 2023, 01:24

Hi all - fuel gauge isn’t working - if I brim the tank the gauge will briefly show full , but then drop back to empty within about 30 minutes of use...

2 Replies

7150 Views

Last post by Mocki
16 Sep 2023, 07:10
Backfire/misfire sounds like its running on 3

Last post by DoubleOSeven « 15 Sep 2023, 13:00
Replies: 4
by makebigplans » 12 Sep 2023, 17:06

Hello all,

We looking for some pointers on how to get our van running smoothly again.

Recently our 1983 watercooled 1.9 Petrol van blew a spark...

4 Replies

8330 Views

Last post by DoubleOSeven
15 Sep 2023, 13:00
Temp gauge

Last post by Mocki « 15 Sep 2023, 06:22
Replies: 57
by southernscouse » 09 Jul 2023, 17:05
1

2

3

4
Ok van not in regular use last week run red light carried on flashing checked w after level carried on driving after several miles temp burst into...
57 Replies

47493 Views

Last post by Mocki
15 Sep 2023, 06:22
Earthing problems I think?

Last post by 69gp225 « 14 Sep 2023, 16:44
Replies: 23
by 69gp225 » 03 Sep 2022, 18:04
1

2
Hello,

I Replaced my battery a few days ago and hadn’t started my camper for about five months. Connect the new battery and the negative lead going...
23 Replies

23326 Views

Last post by 69gp225
14 Sep 2023, 16:44
Buzzing dash

Last post by CoalMarx « 14 Sep 2023, 06:43
Replies: 3
by CoalMarx » 12 Sep 2023, 18:32

Can anyone help me with this problem? Its been a while now - a buzzing noise from the dash and flashing oil light. It used to be intermittent and...

3 Replies

6773 Views

Last post by CoalMarx
14 Sep 2023, 06:43
T25 Handbrake warning Light staying On Permanently ?

Last post by Richard Workman « 12 Sep 2023, 22:37
Replies: 4
by Richard Workman » 11 Sep 2023, 10:55

T25 HANDBRAKE LIGHT STAYING ON PERMANENTLY ? Hi, just wondered if anyone had any similar problem or advice. ii have a 1983 1.9 petrol t25 Devon &...

4 Replies

6606 Views

Last post by Richard Workman
12 Sep 2023, 22:37
New Fuel Sender - erratic out put on gauge

Last post by R0B « 08 Sep 2023, 12:12
Replies: 5
by ManicGTI » 08 Sep 2023, 07:26

I had a new tank fitted a year or so ago, with all new lines, crossover etc and thought it would be sensible to fit a new sender at the same time. ...

5 Replies

7237 Views

Last post by R0B
08 Sep 2023, 12:12
Mystery wires, with diode (?), loop found!

Last post by AngeloEvs « 06 Sep 2023, 12:49
Replies: 5
by bambily » 05 Sep 2023, 11:34

Hi, I'm trying to sort out all electronics under the dashboard (removing unused stuff, redoing bad connectors etc.) and I think I got a clear...

5 Replies

5419 Views

Last post by AngeloEvs
06 Sep 2023, 12:49
Steering Wheel Horn Defect.

Last post by maxstu « 05 Sep 2023, 19:46
Replies: 2
by maxstu » 03 Sep 2023, 09:03

Having owned my latest camper for just six years', a few days' back l decided to trace and rectify fault with the steering wheel horn; l've used an...

2 Replies

3744 Views

Last post by maxstu
05 Sep 2023, 19:46
Central locking motor

Last post by cjaysx « 05 Sep 2023, 15:18
Replies: 12
by cjaysx » 02 Sep 2023, 11:03

Hi,

Looking to repair a central locking actuator.
The gears and case I can service, just wondering if anyone know what dc motor to use as its...

12 Replies

5821 Views

Last post by cjaysx
05 Sep 2023, 15:18
"clocking" your wbx alternator mod

Last post by silverbullet « 01 Sep 2023, 10:26

by silverbullet » 01 Sep 2023, 10:26

I had to do this due to a foul on my wbx6 between one regulator mounting screw and the inlet manifold (which could have then cracked the plastic) the...

0 Replies

41486 Views

Last post by silverbullet
01 Sep 2023, 10:26
Rear Light Cluster Question

Last post by Ant-t « 31 Aug 2023, 07:25
Replies: 5
by Ant-t » 13 Aug 2023, 18:21

So I'm trying to remove the white connector from my rear light cluster having removed the outer lenses. The white rectangular connector block has six...

5 Replies

3789 Views

Last post by Ant-t
31 Aug 2023, 07:25
Late Fuse Box Internal Wiring Diagram

Last post by oli8925 « 30 Aug 2023, 22:22
Replies: 29
by oli8925 » 18 Sep 2021, 12:43
1

2
I'm wanting to add some circuits to my relatively basic van (headlight relays, twin tone horn, timed interior light relay etc) and would rather use...
29 Replies

13769 Views

Last post by oli8925
30 Aug 2023, 22:22
Constant clicking Switch Relay

Last post by whyte87 « 30 Aug 2023, 11:27
Replies: 4
by whyte87 » 27 Aug 2023, 12:16

Hi all, Newbie owner/mechanic and first time poster so be gentle...

The switch relay to the leisure battery (beneath the passenger seat) usually...

4 Replies

1887 Views

Last post by whyte87
30 Aug 2023, 11:27
Main light switch stuck

Last post by kernelpanic « 30 Aug 2023, 06:11

by kernelpanic » 30 Aug 2023, 06:11

My main light switch on the T3 just suddenly seized up yesterday, completely refusing to move and thus no lights.

I took out the switch and took it...

0 Replies

38913 Views

Last post by kernelpanic
30 Aug 2023, 06:11
Engine bay wiring not connected to anything

Last post by Ckent « 28 Aug 2023, 14:03
Replies: 11
by Ckent » 18 Jun 2023, 19:38

Hi - new owner of a 1987 tin top - 1.9 dg water cooled engine.
Giving it a good going over - service kit just arrived, coolant already flushed and...

11 Replies

2406 Views

Last post by Ckent
28 Aug 2023, 14:03
Fridge and internal water pump.

Last post by Sinkorswim « 22 Aug 2023, 18:03

by Sinkorswim » 22 Aug 2023, 18:03

Fridge and foot operated water pump not working with 240v, internal socket fine. Any clues? Auto homes Kameo.

0 Replies

38980 Views

Last post by Sinkorswim
22 Aug 2023, 18:03
Wipers work but only by pulling the indicator stalk back with headlights on only

Last post by RichmondSyncro « 20 Aug 2023, 12:49
Replies: 18
by RichmondSyncro » 13 Aug 2023, 15:31
1

2
Hello all,

I'm trying to find the cause of my current challenge as per the title Wipers work but only by pulling the indicator stalk back with...
18 Replies

3955 Views

Last post by RichmondSyncro
20 Aug 2023, 12:49
LifPo Leisure Battery capacity - 100Ah enough...?

Last post by Stesaw « 17 Aug 2023, 19:36
Replies: 4
by ManicGTI » 17 Aug 2023, 10:40

Hi all, any with any experience on 100Ah (or larger) LifPos capacity recommendations / limitations ?

I currently have a 100Ah Lead Acid leisure...

4 Replies

2560 Views

Last post by Stesaw
17 Aug 2023, 19:36

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