Electrical & Instrumentation

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Most liked posts	Author	Posted	Liked	Forum
T25 dashboard dimmer switch	syncroandy	12 Jul 2025, 07:39	2 times this week	Electrical & Instrumentation
Dashboard PCB Replacement (CJH Design)	TwinTurbo	11 Jul 2025, 07:48	2 times this week	Electrical & Instrumentation

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Last post

I want to make a strobe light...

Last post by CovKid « 20 Oct 2015, 13:30
Replies: 2
by The Bishop » 20 Oct 2015, 11:34

I'm after one of these:

But that seems a lot of money for something which is quite basic to make. Trouble is I don't know how to!

I'm guessing...

2 Replies

1469 Views

Last post by CovKid
20 Oct 2015, 13:30
headlight wiring upgrade question

Last post by California Dreamin « 20 Oct 2015, 07:13
Replies: 10
by busbuddy » 19 Sep 2015, 17:50

seen a lot of posts on the subject, never done it myself BUT

had a van come to me for a vagcom check and as a diesel it had an engine bay mounted...

10 Replies

2778 Views

Last post by California Dreamin
20 Oct 2015, 07:13
Can headlights go off when ignition switched off

Last post by Jeff J « 20 Oct 2015, 04:24
Replies: 23
by Sir Brixalot » 17 Oct 2015, 20:40
1

2
I wandered off today and left my lights on for 6 hours. I have the buzzer but have become inured to it. It there a wire I can pull from the ignition...
23 Replies

5502 Views

Last post by Jeff J
20 Oct 2015, 04:24
Another Heater blower question

Last post by CovKid « 19 Oct 2015, 22:17
Replies: 7
by snax » 15 Oct 2015, 07:19

Ive finally got the dash out this week to do some tidying and i thought i would also replace the heater blower while i am at it.
Now i have the dash...

7 Replies

2236 Views

Last post by CovKid
19 Oct 2015, 22:17
Solar panel

Last post by Doug T « 19 Oct 2015, 20:33
Replies: 15
by lodgey62 » 15 Oct 2015, 21:52
1

2
If I connect a solar panel to charge my leisure battery will I have to disconnect the old split charge system from said leisure battery?
15 Replies

4391 Views

Last post by Doug T
19 Oct 2015, 20:33
Battery light - where is the voltage sensing component?

Last post by Oldiebut goodie « 19 Oct 2015, 13:06
Replies: 3
by discipleofsketch » 19 Oct 2015, 10:30

Hi All, my battery light is staying on, intermittently, though a voltmeter tells me that the alternator current is fine and battery is being charged....

3 Replies

1502 Views

Last post by Oldiebut goodie
19 Oct 2015, 13:06
Warning light woes

Last post by chrisevans « 19 Oct 2015, 10:33
Replies: 15
by chrisevans » 06 Oct 2015, 15:34
1

2
I have live with this for quite some time as I don't do many miles but I really want to sort out my warning lights. The oil light does not come on...
15 Replies

6358 Views

Last post by chrisevans
19 Oct 2015, 10:33
Dash lights and autobox light

Last post by bigherb « 19 Oct 2015, 09:01
Replies: 1
by colincolin64 » 18 Oct 2015, 16:08

Hi all can any one tell me which is the fuse for the interior dash clocks and the auto box gear lever light bulbs please I can't find it in my book...

1 Replies

821 Views

Last post by bigherb
19 Oct 2015, 09:01
Won't start after 8 weeks stood still

Last post by Smiffo « 18 Oct 2015, 12:47
Replies: 22
by Smiffo » 29 Aug 2015, 18:08
1

2
Evening all.

I'm after some advice.

After a recent shoulder operation, the love bus has been stood still for 8 weeks.
Before this, the same slow...
22 Replies

7549 Views

Last post by Smiffo
18 Oct 2015, 12:47
indicator relay

Last post by CovKid « 16 Oct 2015, 13:16
Replies: 7
by ermie571 » 16 Oct 2015, 06:38

ok dokey friends!

My relay is having a field day! Buzzing, repeating etc etc Using the indicator stops it.

so, I have investigated and the relay...

7 Replies

3307 Views

Last post by CovKid
16 Oct 2015, 13:16
1z tdi ecu

Last post by bundyboy « 10 Jun 2025, 08:34
Replies: 5
by Wallace748 » 14 Oct 2015, 19:03

Hi, I'm running a 93/94 1z tdi with the 68 pin ecu. Struggling to get coms via diagnostic plug( it's the old two pin type) anyone help me out with...

5 Replies

3544 Views

Last post by bundyboy
10 Jun 2025, 08:34
Alternator under charging until accelerator is pushed

Last post by Sir Brixalot « 14 Oct 2015, 13:13
Replies: 32
by Sir Brixalot » 08 Oct 2015, 09:45
1

2

3
As above really. My battery light is on all the time. When I start the van the alternator puts out about 11v and the blue wire 5.5 after letting it...
32 Replies

8123 Views

Last post by Sir Brixalot
14 Oct 2015, 13:13
speedo arm inoperative

Last post by skater « 12 Oct 2015, 18:27
Replies: 3
by skater » 10 Oct 2015, 20:12

Hi all. Just brought a 1990 1.9 petrol transporter. Few little glitches, one of which is that the speedo arm doesn't work, although the speedometer...

3 Replies

1136 Views

Last post by skater
12 Oct 2015, 18:27
Trying to Set the Timing on CU

Last post by InventEd « 12 Oct 2015, 11:51
Replies: 5
by InventEd » 10 Oct 2015, 21:48

OK I have had a few issues of lack of power when trying to accelerate and then the van not starting. Changed the fuel line, filters and checked fuel...

5 Replies

1466 Views

Last post by InventEd
12 Oct 2015, 11:51
Wierd hazard lights issue

Last post by skater « 11 Oct 2015, 12:55
Replies: 3
by skater » 10 Oct 2015, 19:57

Hi all. New to here and to watercooled (but not to Aircooled). Just got a 1990 1.9 petrol transporter. Among a few other little glitches, a wierd...

3 Replies

1203 Views

Last post by skater
11 Oct 2015, 12:55
Dahboard lights not Working

Last post by Ralf85 « 09 Oct 2015, 22:27
Replies: 7
by crazyhorse » 07 Oct 2015, 09:52

Hi gang, well. I thought I had done it but.....

Changed the speedo on the van, dash lights, indicators, evrything working etc.

Have put it back in...

7 Replies

1571 Views

Last post by Ralf85
09 Oct 2015, 22:27
Low voltage protection

Last post by kenkelso « 08 Oct 2015, 16:07
Replies: 4
by kenkelso » 07 Oct 2015, 19:36

I have fitted a REUK low voltage protection circuit to my leasure battery setup, this triggers a 30A relay. Obviously the relay takes some power to...

4 Replies

1285 Views

Last post by kenkelso
08 Oct 2015, 16:07
speedo cabel

Last post by CovKid « 07 Oct 2015, 19:50
Replies: 2
by modo » 07 Oct 2015, 12:08

Hi,
I disconnected the speedo cable switches ect. to get to repair the heater fan. On reassembly I can get the speedo to work any tips on connecting...

2 Replies

981 Views

Last post by CovKid
07 Oct 2015, 19:50
Easy Jumper

Last post by CovKid « 07 Oct 2015, 19:48
Replies: 2
by CovKid » 07 Oct 2015, 16:02

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

Mentioned before but heres a practical demo.

2 Replies

942 Views

Last post by CovKid
07 Oct 2015, 19:48
Fan button pin

Last post by CovKid « 07 Oct 2015, 18:57
Replies: 5
by Juuls » 07 Oct 2015, 16:05

Hi all. Am i right in thinking the fan button sits on a small metal pin? In the distant past i remember using a set of small pliers to control the...

5 Replies

1635 Views

Last post by CovKid
07 Oct 2015, 18:57
ignition switch reliability

Last post by California Dreamin « 07 Oct 2015, 07:41
Replies: 8
by weimarbus » 03 Oct 2015, 18:16

posting here for more coverage, should I pay 3x more for OG or risk a cheaper option , in the good old days of beetle stuff you could get SWF wiper...

8 Replies

2905 Views

Last post by California Dreamin
07 Oct 2015, 07:41
starter motor short / non start ** HELP **

Last post by CovKid « 05 Oct 2015, 20:07
Replies: 11
by jim potter » 01 Oct 2015, 10:17

ok.

so i've had a few issue which have stemmed from a loose earth terminal on the battery.

I have fixed the ecu. so that's all good, but whats...

11 Replies

2982 Views

Last post by CovKid
05 Oct 2015, 20:07
red battery/alt' light problem

Last post by CovKid « 04 Oct 2015, 10:56
Replies: 25
by jrt » 05 Sep 2015, 15:07
1

2
Afternoon, I hope you can help me with a problem with my battery warning light.
On a trip today the red light came on and flickered every now and...
25 Replies

5943 Views

Last post by CovKid
04 Oct 2015, 10:56
ignition switch

Last post by Moonrakers « 03 Oct 2015, 03:09
Replies: 1
by alfieg121 » 02 Oct 2015, 19:33

hi i have a 1983 1600 Aircooled t25. i have four wires that need connecting to the ignition.
1 red
1red with a black stripe
2black joined together
1...

1 Replies

736 Views

Last post by Moonrakers
03 Oct 2015, 03:09
Front indicator light

Last post by CovKid « 02 Oct 2015, 20:26
Replies: 1
by crazyhorse » 02 Oct 2015, 16:40

Hi all,

quick question, the front left indicator on my 87 transporter started flickering quickly (you all know the noise). Had a look outside and it...

1 Replies

792 Views

Last post by CovKid
02 Oct 2015, 20:26
Zig unit shore power

Last post by daddyjim « 30 Sep 2015, 20:02
Replies: 2
by daddyjim » 30 Sep 2015, 09:56

Hi all,

I have a 1981 Danbury with a zig unit, the van has no plug sockets in there. My question is can you wire up plug sockets straight from the...

2 Replies

2892 Views

Last post by daddyjim
30 Sep 2015, 20:02
Hot key

Last post by marlinowner « 30 Sep 2015, 11:23
Replies: 2
by CovKid » 29 Sep 2015, 18:31

Heres a new one. Earlier this year I removed steering cowling as it needed a repair. Still sat on my workbench. Not a problem until yesterday when I...

2 Replies

1021 Views

Last post by marlinowner
30 Sep 2015, 11:23
Coolant gauge u/s

Last post by ricicles « 29 Sep 2015, 16:32
Replies: 10
by ricicles » 23 Sep 2015, 16:14

Our coolant gauge went crazy some time ago. As soon as the engine is running the needle climbs to its Highest position and the flashing light comes...

10 Replies

4085 Views

Last post by ricicles
29 Sep 2015, 16:32
leisure recharge, alternator vs genny vs solar vs theft

Last post by Oldiebut goodie « 29 Sep 2015, 08:37
Replies: 73
by itchyfeet » 29 Jul 2015, 17:43
1

2

3

4

5
Just wondering about charging a battery from a genny vs running the engine.

Alternator is 90A

So if I have a 90 AH battery and it's say 50% charge...
73 Replies

21568 Views

Last post by Oldiebut goodie
29 Sep 2015, 08:37
Auxiliary temp gauge issues

Last post by KINGPRAWN « 29 Sep 2015, 07:34
Replies: 3
by KINGPRAWN » 28 Sep 2015, 19:19

A good while when the van was 2.1 DJ .. I fitted a VDO volt meter .. Oil pressure and water temp gauge ..
Since having a TDI fitted my temp gage when...

3 Replies

1013 Views

Last post by KINGPRAWN
29 Sep 2015, 07:34
heater motor replacement

Last post by dumbo « 28 Sep 2015, 21:49
Replies: 20
by merckxfan » 26 Sep 2015, 12:24
1

2
Afternoon all, I'm about to try and replace the heater motor in my 84 camper, I've been doing a bit of reading on the site and the wiki section and...
20 Replies

5322 Views

Last post by dumbo
28 Sep 2015, 21:49
Identifying an eberspacher in my van

Last post by Emma&Al « 28 Sep 2015, 10:28
Replies: 4
by Emma&Al » 23 Sep 2015, 22:35

So, this is behind a panel in my van. It's never been up and running, it came with the van with little information. There is a black box under the...

4 Replies

1567 Views

Last post by Emma&Al
28 Sep 2015, 10:28
Dizzy melt down & no spark .

Last post by Richiee722 « 27 Sep 2015, 21:40
Replies: 38
by Richiee722 » 09 Sep 2015, 09:33
1

2

3
hi guys
I originally posted in the mech section but I started with a different problem but it's now more electrical .
I've got a 1981 westy with the...
38 Replies

13688 Views

Last post by Richiee722
27 Sep 2015, 21:40
Touch/flip screen stereo install

Last post by T3luestar « 27 Sep 2015, 20:46
Replies: 1
by ELVIS » 27 Sep 2015, 20:30

Anyone ever fitted a flip front screen type stereo to a T3?

Got a clarion head unit with screen that folds out and pops up but also have a padded...

1 Replies

752 Views

Last post by T3luestar
27 Sep 2015, 20:46
Intermitent rear Wiper (Relay upgrade)

Last post by DoubleOSeven « 27 Sep 2015, 18:29
Replies: 3
by DoubleOSeven » 24 Aug 2015, 15:15

During my days of Mk1 Golf ownership I remember changing the rear wiper relay so it became intermitent, instead of manual.

I guess the same upgrade...

3 Replies

2279 Views

Last post by DoubleOSeven
27 Sep 2015, 18:29
Heater blower switch

Last post by ghost123uk « 27 Sep 2015, 10:37
Replies: 8
by ssnax » 25 Sep 2015, 22:03

Well after several months of ownership and looking at various pictures of other peoples non rusty t25's i stumbled across a picture of of a heater...

8 Replies

2881 Views

Last post by ghost123uk
27 Sep 2015, 10:37
Leisure batteries, buy by brand name?

Last post by ghost123uk « 27 Sep 2015, 09:49
Replies: 6
by ghost123uk » 25 Sep 2015, 08:03

Looking at sourcing two 110AH leisure batteries (not for my van, not that that matters).

On Ebay there are a wide range of prices from £50 each to...

6 Replies

4068 Views

Last post by ghost123uk
27 Sep 2015, 09:49
Flashing red light...

Last post by Ant-t « 24 Sep 2015, 19:46
Replies: 21
by Ant-t » 14 Sep 2015, 18:25
1

2
Went to start my van earlier having driven a few miles with no issues, noticed that the flashing red coolant light didn't go out after the usual few...
21 Replies

7953 Views

Last post by Ant-t
24 Sep 2015, 19:46
Electrical advice - Strand stage light - which holder?

Last post by Sir Brixalot « 24 Sep 2015, 16:19
Replies: 7
by Sir Brixalot » 23 Sep 2015, 08:25

Ages ago I bought a 60s Strand stage light. I left the original bulb in it to keep it authentic but its so powerful that it can't be used as a...

7 Replies

1884 Views

Last post by Sir Brixalot
24 Sep 2015, 16:19
advice on a big leisure battery please

Last post by ghost123uk « 24 Sep 2015, 07:50
Replies: 7
by ray63 » 10 Jun 2013, 18:33

Hi all.can anyone recommend a big leisure battery to fit next to the lpg tank so size not an issue,have seen a exide battery for 98 quid,115ah,any...

7 Replies

4140 Views

Last post by ghost123uk
24 Sep 2015, 07:50
won't start (mad day )

Last post by itchyfeet « 23 Sep 2015, 18:26
Replies: 3
by obbig » 23 Sep 2015, 13:19

hi all went from starting no props, to not turn over at all all's I done was check drive shaft bolts had two lose and give it a oil & filter change...

3 Replies

1352 Views

Last post by itchyfeet
23 Sep 2015, 18:26
Wiring a buzzer into coolant warning light

Last post by Dazco « 23 Sep 2015, 14:55
Replies: 15
by Dazco » 21 Sep 2015, 16:57
1

2
Jambo is an '84 van so uses early coolant system . Yesterday I had the warning light come on and managed to stop within seconds.
I have an issue...
15 Replies

3596 Views

Last post by Dazco
23 Sep 2015, 14:55
another leisure battery problem

Last post by mowermedic « 21 Sep 2015, 20:26
Replies: 8
by mowermedic » 13 Sep 2015, 20:55

Hello all, I recently bought my first T25 which is a camper conversion and appears to be a profesional job. However, there is no leisure battery...

8 Replies

2237 Views

Last post by mowermedic
21 Sep 2015, 20:26
E.H.U Sockets not working

Last post by a1winchester « 21 Sep 2015, 19:19
Replies: 9
by SEKN410 » 19 Sep 2015, 10:00

Hi All,last night i tried to put my fridge on to cool it down for today.as i went to stock fridge today noticed it wasnt cold. turns out the sockets...

9 Replies

2516 Views

Last post by a1winchester
21 Sep 2015, 19:19
Starter bush seems loose...

Last post by Alex56 « 20 Sep 2015, 18:37
Replies: 8
by Alex56 » 18 Sep 2015, 20:57

So I changed my starter, and of course I changed the bush.

Not easy to get the old one out, but the new one went in so easy I wondered if it was a...

8 Replies

1975 Views

Last post by Alex56
20 Sep 2015, 18:37
speedo and tach calibration?

Last post by CovKid « 20 Sep 2015, 06:00
Replies: 2
by Blaizefed » 19 Sep 2015, 20:06

Right, Just bought my 86 westy. Been working out the bugs, and one of them is the gauges both being out of whack.

First, the speedo is off (I know...

2 Replies

1047 Views

Last post by CovKid
20 Sep 2015, 06:00
Trying to find a battery to fit under drivers seat?

Last post by marlinowner « 19 Sep 2015, 09:46
Replies: 3
by Laws1974 » 19 Sep 2015, 07:30

Help
Need to find a battery that's fits under the drivers seat compartment?
And do I need to remove seat base to fit it in?
Last job do do.

3 Replies

1347 Views

Last post by marlinowner
19 Sep 2015, 09:46
2.1 dj stalling after 5secs no idle

Last post by Alex56 « 18 Sep 2015, 20:49
Replies: 8
by spanishfly » 27 Jan 2015, 08:20

Hi, I have the read the wiki honest!

Having just spent 3 months on the body work of my mercifully almost rust free westy joker 1988 2.1 dj came to...

8 Replies

3807 Views

Last post by Alex56
18 Sep 2015, 20:49
Moving battery on a petrol bus.

Last post by CJH « 17 Sep 2015, 19:10
Replies: 12
by chewbacca » 16 Sep 2015, 15:48

Hi guys.

I'd like to move my battery into the engine bay, to make space under the drivers seat.

Any reason not to? I figure if I pull the air box &...

12 Replies

3890 Views

Last post by CJH
17 Sep 2015, 19:10
short on lights

Last post by itchyfeet « 17 Sep 2015, 18:34
Replies: 17
by killerme » 07 Jul 2015, 09:53
1

2
Ever since I got this van (T25 joker 1989 petrol converted to 1600TD) it has run the battery down if you leave it unused for any length of time. I...
17 Replies

4476 Views

Last post by itchyfeet
17 Sep 2015, 18:34

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